Re: Linux 6.6.134

Greg Kroah-Hartman
2026-04-11T12:53:22Z

diff --git a/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml b/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml
index be95f6b97b41..0c28292a5bb4 100644
--- a/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml
+++ b/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml
@@ -66,7 +66,7 @@ then:
required:
- refresh-rate-hz

-additionalProperties: false
+unevaluatedProperties: false

examples:
- |
diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml
index 7c8a3e8430d3..48a93690bb43 100644
--- a/Documentation/devicetree/bindings/connector/usb-connector.yaml
+++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml
@@ -232,6 +232,7 @@ properties:
type: boolean

dependencies:
+ pd-disable: [typec-power-opmode]
sink-vdos-v1: [ sink-vdos ]
sink-vdos: [ sink-vdos-v1 ]

diff --git a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
index d481e78958a7..2c7355e9547a 100644
--- a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
@@ -33,7 +33,7 @@ properties:
const: 2

"#interrupt-cells":
- const: 1
+ const: 2

ngpios:
description:
@@ -84,7 +84,7 @@ examples:
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
- #interrupt-cells = <1>;
+ #interrupt-cells = <2>;
interrupts = <53>, <53>, <53>, <53>,
<53>, <53>, <53>, <53>,
<53>, <53>, <53>, <53>,
diff --git a/Makefile b/Makefile
index 753e98740a5e..6b1d800ce74b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 6
PATCHLEVEL = 6
-SUBLEVEL = 133
+SUBLEVEL = 134
EXTRAVERSION =
NAME = Pinguïn Aangedreven

diff --git a/arch/arm64/kernel/patch-scs.c b/arch/arm64/kernel/patch-scs.c
index a1fe4b4ff591..6d656179ea03 100644
--- a/arch/arm64/kernel/patch-scs.c
+++ b/arch/arm64/kernel/patch-scs.c
@@ -171,6 +171,14 @@ static int noinstr scs_handle_fde_frame(const struct eh_frame *frame,
size -= 2;
break;

+ case DW_CFA_advance_loc4:
+ loc += *opcode++ * code_alignment_factor;
+ loc += (*opcode++ << 8) * code_alignment_factor;
+ loc += (*opcode++ << 16) * code_alignment_factor;
+ loc += (*opcode++ << 24) * code_alignment_factor;
+ size -= 4;
+ break;
+
case DW_CFA_def_cfa:
case DW_CFA_offset_extended:
size = skip_xleb128(&opcode, size);
diff --git a/arch/loongarch/include/asm/linkage.h b/arch/loongarch/include/asm/linkage.h
index e2eca1a25b4e..a1bd6a3ee03a 100644
--- a/arch/loongarch/include/asm/linkage.h
+++ b/arch/loongarch/include/asm/linkage.h
@@ -41,4 +41,40 @@
.cfi_endproc; \
SYM_END(name, SYM_T_NONE)

+/*
+ * This is for the signal handler trampoline, which is used as the return
+ * address of the signal handlers in userspace instead of called normally.
+ * The long standing libgcc bug https://gcc.gnu.org/PR124050 requires a
+ * nop between .cfi_startproc and the actual address of the trampoline, so
+ * we cannot simply use SYM_FUNC_START.
+ *
+ * This wrapper also contains all the .cfi_* directives for recovering
+ * the content of the GPRs and the "return address" (where the rt_sigreturn
+ * syscall will jump to), assuming there is a struct rt_sigframe (where
+ * a struct sigcontext containing those information we need to recover) at
+ * $sp. The "DWARF for the LoongArch(TM) Architecture" manual states
+ * column 0 is for $zero, but it does not make too much sense to
+ * save/restore the hardware zero register. Repurpose this column here
+ * for the return address (here it's not the content of $ra we cannot use
+ * the default column 3).
+ */
+#define SYM_SIGFUNC_START(name) \
+ .cfi_startproc; \
+ .cfi_signal_frame; \
+ .cfi_def_cfa 3, RT_SIGFRAME_SC; \
+ .cfi_return_column 0; \
+ .cfi_offset 0, SC_PC; \
+ \
+ .irp num, 1, 2, 3, 4, 5, 6, 7, 8, \
+ 9, 10, 11, 12, 13, 14, 15, 16, \
+ 17, 18, 19, 20, 21, 22, 23, 24, \
+ 25, 26, 27, 28, 29, 30, 31; \
+ .cfi_offset \num, SC_REGS + \num * SZREG; \
+ .endr; \
+ \
+ nop; \
+ SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
+
+#define SYM_SIGFUNC_END(name) SYM_FUNC_END(name)
+
#endif
diff --git a/arch/loongarch/include/asm/sigframe.h b/arch/loongarch/include/asm/sigframe.h
new file mode 100644
index 000000000000..109298b8d7e0
--- /dev/null
+++ b/arch/loongarch/include/asm/sigframe.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#include <asm/siginfo.h>
+#include <asm/ucontext.h>
+
+struct rt_sigframe {
+ struct siginfo rs_info;
+ struct ucontext rs_uctx;
+};
diff --git a/arch/loongarch/kernel/asm-offsets.c b/arch/loongarch/kernel/asm-offsets.c
index 110afd3cc8f3..10c66ec95fa1 100644
--- a/arch/loongarch/kernel/asm-offsets.c
+++ b/arch/loongarch/kernel/asm-offsets.c
@@ -15,6 +15,7 @@
#include <asm/ptrace.h>
#include <asm/processor.h>
#include <asm/ftrace.h>
+#include <asm/sigframe.h>

void output_ptreg_defines(void)
{
@@ -218,6 +219,7 @@ void output_sc_defines(void)
COMMENT("Linux sigcontext offsets.");
OFFSET(SC_REGS, sigcontext, sc_regs);
OFFSET(SC_PC, sigcontext, sc_pc);
+ OFFSET(RT_SIGFRAME_SC, rt_sigframe, rs_uctx.uc_mcontext);
BLANK();
}

diff --git a/arch/loongarch/kernel/signal.c b/arch/loongarch/kernel/signal.c
index 0e90cd2df0ea..c9a0fd40e8b5 100644
--- a/arch/loongarch/kernel/signal.c
+++ b/arch/loongarch/kernel/signal.c
@@ -34,6 +34,7 @@
#include <asm/cpu-features.h>
#include <asm/fpu.h>
#include <asm/lbt.h>
+#include <asm/sigframe.h>
#include <asm/ucontext.h>
#include <asm/vdso.h>

@@ -71,11 +72,6 @@ extern asmlinkage int _save_ftop_context(void __user *ftop);
extern asmlinkage int _restore_ftop_context(void __user *ftop);
#endif

-struct rt_sigframe {
- struct siginfo rs_info;
- struct ucontext rs_uctx;
-};
-
struct _ctx_layout {
struct sctx_info *addr;
unsigned int size;
diff --git a/arch/loongarch/vdso/Makefile b/arch/loongarch/vdso/Makefile
index 1a0f6ca0247b..ebf3b4d52172 100644
--- a/arch/loongarch/vdso/Makefile
+++ b/arch/loongarch/vdso/Makefile
@@ -24,7 +24,7 @@ cflags-vdso := $(ccflags-vdso) \
$(filter -W%,$(filter-out -Wa$(comma)%,$(KBUILD_CFLAGS))) \
-std=gnu11 -O2 -g -fno-strict-aliasing -fno-common -fno-builtin \
-fno-stack-protector -fno-jump-tables -DDISABLE_BRANCH_PROFILING \
- $(call cc-option, -fno-asynchronous-unwind-tables) \
+ $(call cc-option, -fasynchronous-unwind-tables) \
$(call cc-option, -fno-stack-protector)
aflags-vdso := $(ccflags-vdso) \
-D__ASSEMBLY__ -Wa,-gdwarf-2
@@ -36,7 +36,7 @@ endif
# VDSO linker flags.
ldflags-y := -Bsymbolic --no-undefined -soname=linux-vdso.so.1 \
$(filter -E%,$(KBUILD_CFLAGS)) -nostdlib -shared \
- --hash-style=sysv --build-id -T
+ --hash-style=sysv --build-id --eh-frame-hdr -T

GCOV_PROFILE := n

diff --git a/arch/loongarch/vdso/sigreturn.S b/arch/loongarch/vdso/sigreturn.S
index 9cb3c58fad03..59f940d928de 100644
--- a/arch/loongarch/vdso/sigreturn.S
+++ b/arch/loongarch/vdso/sigreturn.S
@@ -12,13 +12,13 @@

#include <asm/regdef.h>
#include <asm/asm.h>
+#include <asm/asm-offsets.h>

.section .text
- .cfi_sections .debug_frame

-SYM_FUNC_START(__vdso_rt_sigreturn)
+SYM_SIGFUNC_START(__vdso_rt_sigreturn)

li.w a7, __NR_rt_sigreturn
syscall 0

-SYM_FUNC_END(__vdso_rt_sigreturn)
+SYM_SIGFUNC_END(__vdso_rt_sigreturn)
diff --git a/arch/mips/lib/multi3.c b/arch/mips/lib/multi3.c
index 4c2483f410c2..92b3778bb56f 100644
--- a/arch/mips/lib/multi3.c
+++ b/arch/mips/lib/multi3.c
@@ -4,12 +4,12 @@
#include "libgcc.h"

/*
- * GCC 7 & older can suboptimally generate __multi3 calls for mips64r6, so for
+ * GCC 9 & older can suboptimally generate __multi3 calls for mips64r6, so for
* that specific case only we implement that intrinsic here.
*
* See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82981
*/
-#if defined(CONFIG_64BIT) && defined(CONFIG_CPU_MIPSR6) && (__GNUC__ < 8)
+#if defined(CONFIG_64BIT) && defined(CONFIG_CPU_MIPSR6) && (__GNUC__ < 10)

/* multiply 64-bit values, low 64-bits returned */
static inline long long notrace dmulu(long long a, long long b)
@@ -51,4 +51,4 @@ ti_type notrace __multi3(ti_type a, ti_type b)
}
EXPORT_SYMBOL(__multi3);

-#endif /* 64BIT && CPU_MIPSR6 && GCC7 */
+#endif /* 64BIT && CPU_MIPSR6 && GCC9 */
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c
index 06cb140476ea..4d49ecf27610 100644
--- a/arch/mips/mm/tlb-r4k.c
+++ b/arch/mips/mm/tlb-r4k.c
@@ -536,7 +536,7 @@ static void __ref r4k_tlb_uniquify(void)

tlb_vpn_size = tlbsize * sizeof(*tlb_vpns);
tlb_vpns = (use_slab ?
- kmalloc(tlb_vpn_size, GFP_KERNEL) :
+ kmalloc(tlb_vpn_size, GFP_ATOMIC) :
memblock_alloc_raw(tlb_vpn_size, sizeof(*tlb_vpns)));
if (WARN_ON(!tlb_vpns))
return; /* Pray local_flush_tlb_all() is good enough. */
diff --git a/arch/mips/ralink/clk.c b/arch/mips/ralink/clk.c
index 9db73fcac522..5c1eb46ef5d0 100644
--- a/arch/mips/ralink/clk.c
+++ b/arch/mips/ralink/clk.c
@@ -21,16 +21,16 @@ static const char *clk_cpu(int *idx)
{
switch (ralink_soc) {
case RT2880_SOC:
- *idx = 0;
+ *idx = 1;
return "ralink,rt2880-sysc";
case RT3883_SOC:
- *idx = 0;
+ *idx = 1;
return "ralink,rt3883-sysc";
case RT305X_SOC_RT3050:
- *idx = 0;
+ *idx = 1;
return "ralink,rt3050-sysc";
case RT305X_SOC_RT3052:
- *idx = 0;
+ *idx = 1;
return "ralink,rt3052-sysc";
case RT305X_SOC_RT3350:
*idx = 1;
diff --git a/arch/riscv/kernel/kgdb.c b/arch/riscv/kernel/kgdb.c
index 9f3db3503dab..edaab2aa16a3 100644
--- a/arch/riscv/kernel/kgdb.c
+++ b/arch/riscv/kernel/kgdb.c
@@ -175,7 +175,7 @@ struct dbg_reg_def_t dbg_reg_def[DBG_MAX_REG_NUM] = {
{DBG_REG_T1, GDB_SIZEOF_REG, offsetof(struct pt_regs, t1)},
{DBG_REG_T2, GDB_SIZEOF_REG, offsetof(struct pt_regs, t2)},
{DBG_REG_FP, GDB_SIZEOF_REG, offsetof(struct pt_regs, s0)},
- {DBG_REG_S1, GDB_SIZEOF_REG, offsetof(struct pt_regs, a1)},
+ {DBG_REG_S1, GDB_SIZEOF_REG, offsetof(struct pt_regs, s1)},
{DBG_REG_A0, GDB_SIZEOF_REG, offsetof(struct pt_regs, a0)},
{DBG_REG_A1, GDB_SIZEOF_REG, offsetof(struct pt_regs, a1)},
{DBG_REG_A2, GDB_SIZEOF_REG, offsetof(struct pt_regs, a2)},
@@ -244,8 +244,9 @@ sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *task)
gdb_regs[DBG_REG_S6_OFF] = task->thread.s[6];
gdb_regs[DBG_REG_S7_OFF] = task->thread.s[7];
gdb_regs[DBG_REG_S8_OFF] = task->thread.s[8];
- gdb_regs[DBG_REG_S9_OFF] = task->thread.s[10];
- gdb_regs[DBG_REG_S10_OFF] = task->thread.s[11];
+ gdb_regs[DBG_REG_S9_OFF] = task->thread.s[9];
+ gdb_regs[DBG_REG_S10_OFF] = task->thread.s[10];
+ gdb_regs[DBG_REG_S11_OFF] = task->thread.s[11];
gdb_regs[DBG_REG_EPC_OFF] = task->thread.ra;
}

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index cf455968f27b..ef73ce697ec8 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -2012,12 +2012,6 @@ static void identify_cpu(struct cpuinfo_x86 *c)
setup_smap(c);
setup_umip(c);

- /* Enable FSGSBASE instructions if available. */
- if (cpu_has(c, X86_FEATURE_FSGSBASE)) {
- cr4_set_bits(X86_CR4_FSGSBASE);
- elf_hwcap2 |= HWCAP2_FSGSBASE;
- }
-
/*
* The vendor-specific functions might have changed features.
* Now we do "generic changes."
@@ -2349,6 +2343,18 @@ void cpu_init_exception_handling(void)
/* GHCB needs to be setup to handle #VC. */
setup_ghcb();

+ /*
+ * On CPUs with FSGSBASE support, paranoid_entry() uses
+ * ALTERNATIVE-patched RDGSBASE/WRGSBASE instructions. Secondary CPUs
+ * boot after alternatives are patched globally, so early exceptions
+ * execute patched code that depends on FSGSBASE. Enable the feature
+ * before any exceptions occur.
+ */
+ if (cpu_feature_enabled(X86_FEATURE_FSGSBASE)) {
+ cr4_set_bits(X86_CR4_FSGSBASE);
+ elf_hwcap2 |= HWCAP2_FSGSBASE;
+ }
+
/* Finally load the IDT */
load_current_idt();
}
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 3d0b7542f771..24575ceae14b 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -622,8 +622,10 @@ static int af_alg_alloc_tsgl(struct sock *sk)
sg_init_table(sgl->sg, MAX_SGL_ENTS + 1);
sgl->cur = 0;

- if (sg)
+ if (sg) {
+ sg_unmark_end(sg + MAX_SGL_ENTS - 1);
sg_chain(sg, MAX_SGL_ENTS + 1, sgl->sg);
+ }

list_add_tail(&sgl->list, &ctx->tsgl_list);
}
diff --git a/drivers/accel/qaic/qaic_control.c b/drivers/accel/qaic/qaic_control.c
index 08b78f567853..de8b17e2b29e 100644
--- a/drivers/accel/qaic/qaic_control.c
+++ b/drivers/accel/qaic/qaic_control.c
@@ -910,7 +910,7 @@ static int decode_deactivate(struct qaic_device *qdev, void *trans, u32 *msg_len
*/
return -ENODEV;

- if (status) {
+ if (usr && status) {
/*
* Releasing resources failed on the device side, which puts
* us in a bind since they may still be in use, so enable the
@@ -1104,6 +1104,9 @@ static void *msg_xfer(struct qaic_device *qdev, struct wrapper_list *wrappers, u
mutex_lock(&qdev->cntl_mutex);
if (!list_empty(&elem.list))
list_del(&elem.list);
+ /* resp_worker() processed the response but the wait was interrupted */
+ else if (ret == -ERESTARTSYS)
+ ret = 0;
if (!ret && !elem.buf)
ret = -ETIMEDOUT;
else if (ret > 0 && !elem.buf)
@@ -1414,9 +1417,49 @@ static void resp_worker(struct work_struct *work)
}
mutex_unlock(&qdev->cntl_mutex);

- if (!found)
+ if (!found) {
+ /*
+ * The user might have gone away at this point without waiting
+ * for QAIC_TRANS_DEACTIVATE_FROM_DEV transaction coming from
+ * the device. If this is not handled correctly, the host will
+ * not know that the DBC[n] has been freed on the device.
+ * Due to this failure in synchronization between the device and
+ * the host, if another user requests to activate a network, and
+ * the device assigns DBC[n] again, save_dbc_buf() will hang,
+ * waiting for dbc[n]->in_use to be set to false, which will not
+ * happen unless the qaic_dev_reset_clean_local_state() gets
+ * called by resetting the device (or re-inserting the module).
+ *
+ * As a solution, we look for QAIC_TRANS_DEACTIVATE_FROM_DEV
+ * transactions in the message before disposing of it, then
+ * handle releasing the DBC resources.
+ *
+ * Since the user has gone away, if the device could not
+ * deactivate the network (status != 0), there is no way to
+ * enable and reassign the DBC to the user. We can put trust in
+ * the device that it will release all the active DBCs in
+ * response to the QAIC_TRANS_TERMINATE_TO_DEV transaction,
+ * otherwise, the user can issue an soc_reset to the device.
+ */
+ u32 msg_count = le32_to_cpu(msg->hdr.count);
+ u32 msg_len = le32_to_cpu(msg->hdr.len);
+ u32 len = 0;
+ int j;
+
+ for (j = 0; j < msg_count && len < msg_len; ++j) {
+ struct wire_trans_hdr *trans_hdr;
+
+ trans_hdr = (struct wire_trans_hdr *)(msg->data + len);
+ if (le32_to_cpu(trans_hdr->type) == QAIC_TRANS_DEACTIVATE_FROM_DEV) {
+ if (decode_deactivate(qdev, trans_hdr, &len, NULL))
+ len += le32_to_cpu(trans_hdr->len);
+ } else {
+ len += le32_to_cpu(trans_hdr->len);
+ }
+ }
/* request must have timed out, drop packet */
kfree(msg);
+ }

kfree(resp);
}
diff --git a/drivers/comedi/drivers.c b/drivers/comedi/drivers.c
index ce4cde140518..01a406b885b3 100644
--- a/drivers/comedi/drivers.c
+++ b/drivers/comedi/drivers.c
@@ -1000,6 +1000,14 @@ int comedi_device_attach(struct comedi_device *dev, struct comedi_devconfig *it)
ret = -EIO;
goto out;
}
+ if (IS_ENABLED(CONFIG_LOCKDEP)) {
+ /*
+ * dev->spinlock is for private use by the attached low-level
+ * driver. Reinitialize it to stop lock-dependency tracking
+ * between attachments to different low-level drivers.
+ */
+ spin_lock_init(&dev->spinlock);
+ }
dev->driver = driv;
dev->board_name = dev->board_ptr ? *(const char **)dev->board_ptr
: dev->driver->driver_name;
diff --git a/drivers/comedi/drivers/dt2815.c b/drivers/comedi/drivers/dt2815.c
index 03ba2fd18a21..d066dc303520 100644
--- a/drivers/comedi/drivers/dt2815.c
+++ b/drivers/comedi/drivers/dt2815.c
@@ -175,6 +175,18 @@ static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
? current_range_type : voltage_range_type;
}

+ /*
+ * Check if hardware is present before attempting any I/O operations.
+ * Reading 0xff from status register typically indicates no hardware
+ * on the bus (floating bus reads as all 1s).
+ */
+ if (inb(dev->iobase + DT2815_STATUS) == 0xff) {
+ dev_err(dev->class_dev,
+ "No hardware detected at I/O base 0x%lx\n",
+ dev->iobase);
+ return -ENODEV;
+ }
+
/* Init the 2815 */
outb(0x00, dev->iobase + DT2815_STATUS);
for (i = 0; i < 100; i++) {
diff --git a/drivers/comedi/drivers/me4000.c b/drivers/comedi/drivers/me4000.c
index 9aea02b86ed9..5fc95e92aff3 100644
--- a/drivers/comedi/drivers/me4000.c
+++ b/drivers/comedi/drivers/me4000.c
@@ -315,6 +315,18 @@ static int me4000_xilinx_download(struct comedi_device *dev,
unsigned int val;
unsigned int i;

+ /* Get data stream length from header. */
+ if (size >= 4) {
+ file_length = (((unsigned int)data[0] & 0xff) << 24) +
+ (((unsigned int)data[1] & 0xff) << 16) +
+ (((unsigned int)data[2] & 0xff) << 8) +
+ ((unsigned int)data[3] & 0xff);
+ }
+ if (size < 16 || file_length > size - 16) {
+ dev_err(dev->class_dev, "Firmware length inconsistency\n");
+ return -EINVAL;
+ }
+
if (!xilinx_iobase)
return -ENODEV;

@@ -346,10 +358,6 @@ static int me4000_xilinx_download(struct comedi_device *dev,
outl(val, devpriv->plx_regbase + PLX9052_CNTRL);

/* Download Xilinx firmware */
- file_length = (((unsigned int)data[0] & 0xff) << 24) +
- (((unsigned int)data[1] & 0xff) << 16) +
- (((unsigned int)data[2] & 0xff) << 8) +
- ((unsigned int)data[3] & 0xff);
usleep_range(10, 1000);

for (i = 0; i < file_length; i++) {
diff --git a/drivers/comedi/drivers/me_daq.c b/drivers/comedi/drivers/me_daq.c
index 076b15097afd..2f2ea029cffc 100644
--- a/drivers/comedi/drivers/me_daq.c
+++ b/drivers/comedi/drivers/me_daq.c
@@ -344,6 +344,25 @@ static int me2600_xilinx_download(struct comedi_device *dev,
unsigned int file_length;
unsigned int i;

+ /*
+ * Format of the firmware
+ * Build longs from the byte-wise coded header
+ * Byte 1-3: length of the array
+ * Byte 4-7: version
+ * Byte 8-11: date
+ * Byte 12-15: reserved
+ */
+ if (size >= 4) {
+ file_length = (((unsigned int)data[0] & 0xff) << 24) +
+ (((unsigned int)data[1] & 0xff) << 16) +
+ (((unsigned int)data[2] & 0xff) << 8) +
+ ((unsigned int)data[3] & 0xff);
+ }
+ if (size < 16 || file_length > size - 16) {
+ dev_err(dev->class_dev, "Firmware length inconsistency\n");
+ return -EINVAL;
+ }
+
/* disable irq's on PLX */
writel(0x00, devpriv->plx_regbase + PLX9052_INTCSR);

@@ -357,22 +376,6 @@ static int me2600_xilinx_download(struct comedi_device *dev,
writeb(0x00, dev->mmio + 0x0);
sleep(1);

- /*
- * Format of the firmware
- * Build longs from the byte-wise coded header
- * Byte 1-3: length of the array
- * Byte 4-7: version
- * Byte 8-11: date
- * Byte 12-15: reserved
- */
- if (size < 16)
- return -EINVAL;
-
- file_length = (((unsigned int)data[0] & 0xff) << 24) +
- (((unsigned int)data[1] & 0xff) << 16) +
- (((unsigned int)data[2] & 0xff) << 8) +
- ((unsigned int)data[3] & 0xff);
-
/*
* Loop for writing firmware byte by byte to xilinx
* Firmware data start at offset 16
diff --git a/drivers/comedi/drivers/ni_atmio16d.c b/drivers/comedi/drivers/ni_atmio16d.c
index 9fa902529a8e..e01ab5311d23 100644
--- a/drivers/comedi/drivers/ni_atmio16d.c
+++ b/drivers/comedi/drivers/ni_atmio16d.c
@@ -698,7 +698,8 @@ static int atmio16d_attach(struct comedi_device *dev,

static void atmio16d_detach(struct comedi_device *dev)
{
- reset_atmio16d(dev);
+ if (dev->private)
+ reset_atmio16d(dev);
comedi_legacy_detach(dev);
}

diff --git a/drivers/counter/rz-mtu3-cnt.c b/drivers/counter/rz-mtu3-cnt.c
index ee821493b166..b0de86670907 100644
--- a/drivers/counter/rz-mtu3-cnt.c
+++ b/drivers/counter/rz-mtu3-cnt.c
@@ -107,9 +107,9 @@ static bool rz_mtu3_is_counter_invalid(struct counter_device *counter, int id)
struct rz_mtu3_cnt *const priv = counter_priv(counter);
unsigned long tmdr;

- pm_runtime_get_sync(priv->ch->dev);
+ pm_runtime_get_sync(counter->parent);
tmdr = rz_mtu3_shared_reg_read(priv->ch, RZ_MTU3_TMDR3);
- pm_runtime_put(priv->ch->dev);
+ pm_runtime_put(counter->parent);

if (id == RZ_MTU3_32_BIT_CH && test_bit(RZ_MTU3_TMDR3_LWA, &tmdr))
return false;
@@ -165,12 +165,12 @@ static int rz_mtu3_count_read(struct counter_device *counter,
if (ret)
return ret;

- pm_runtime_get_sync(ch->dev);
+ pm_runtime_get_sync(counter->parent);
if (count->id == RZ_MTU3_32_BIT_CH)
*val = rz_mtu3_32bit_ch_read(ch, RZ_MTU3_TCNTLW);
else
*val = rz_mtu3_16bit_ch_read(ch, RZ_MTU3_TCNT);
- pm_runtime_put(ch->dev);
+ pm_runtime_put(counter->parent);
mutex_unlock(&priv->lock);

return 0;
@@ -187,26 +187,26 @@ static int rz_mtu3_count_write(struct counter_device *counter,
if (ret)
return ret;

- pm_runtime_get_sync(ch->dev);
+ pm_runtime_get_sync(counter->parent);
if (count->id == RZ_MTU3_32_BIT_CH)
rz_mtu3_32bit_ch_write(ch, RZ_MTU3_TCNTLW, val);
else
rz_mtu3_16bit_ch_write(ch, RZ_MTU3_TCNT, val);
- pm_runtime_put(ch->dev);
+ pm_runtime_put(counter->parent);
mutex_unlock(&priv->lock);

return 0;
}

static int rz_mtu3_count_function_read_helper(struct rz_mtu3_channel *const ch,
- struct rz_mtu3_cnt *const priv,
+ struct counter_device *const counter,
enum counter_function *function)
{
u8 timer_mode;

- pm_runtime_get_sync(ch->dev);
+ pm_runtime_get_sync(counter->parent);
timer_mode = rz_mtu3_8bit_ch_read(ch, RZ_MTU3_TMDR1);
- pm_runtime_put(ch->dev);
+ pm_runtime_put(counter->parent);

switch (timer_mode & RZ_MTU3_TMDR1_PH_CNT_MODE_MASK) {
case RZ_MTU3_TMDR1_PH_CNT_MODE_1:
@@ -240,7 +240,7 @@ static int rz_mtu3_count_function_read(struct counter_device *counter,
if (ret)
return ret;

- ret = rz_mtu3_count_function_read_helper(ch, priv, function);
+ ret = rz_mtu3_count_function_read_helper(ch, counter, function);
mutex_unlock(&priv->lock);

return ret;
@@ -279,9 +279,9 @@ static int rz_mtu3_count_function_write(struct counter_device *counter,
return -EINVAL;
}

- pm_runtime_get_sync(ch->dev);
+ pm_runtime_get_sync(counter->parent);
rz_mtu3_8bit_ch_write(ch, RZ_MTU3_TMDR1, timer_mode);
- pm_runtime_put(ch->dev);
+ pm_runtime_put(counter->parent);
mutex_unlock(&priv->lock);

return 0;
@@ -300,9 +300,9 @@ static int rz_mtu3_count_direction_read(struct counter_device *counter,
if (ret)
return ret;

- pm_runtime_get_sync(ch->dev);
+ pm_runtime_get_sync(counter->parent);
tsr = rz_mtu3_8bit_ch_read(ch, RZ_MTU3_TSR);
- pm_runtime_put(ch->dev);
+ pm_runtime_put(counter->parent);

*direction = (tsr & RZ_MTU3_TSR_TCFD) ?
COUNTER_COUNT_DIRECTION_FORWARD : COUNTER_COUNT_DIRECTION_BACKWARD;
@@ -377,14 +377,14 @@ static int rz_mtu3_count_ceiling_write(struct counter_device *counter,
return -EINVAL;
}

- pm_runtime_get_sync(ch->dev);
+ pm_runtime_get_sync(counter->parent);
if (count->id == RZ_MTU3_32_BIT_CH)
rz_mtu3_32bit_ch_write(ch, RZ_MTU3_TGRALW, ceiling);
else
rz_mtu3_16bit_ch_write(ch, RZ_MTU3_TGRA, ceiling);

rz_mtu3_8bit_ch_write(ch, RZ_MTU3_TCR, RZ_MTU3_TCR_CCLR_TGRA);
- pm_runtime_put(ch->dev);
+ pm_runtime_put(counter->parent);
mutex_unlock(&priv->lock);

return 0;
@@ -495,25 +495,28 @@ static int rz_mtu3_count_enable_read(struct counter_device *counter,
static int rz_mtu3_count_enable_write(struct counter_device *counter,
struct counter_count *count, u8 enable)
{
- struct rz_mtu3_channel *const ch = rz_mtu3_get_ch(counter, count->id);
struct rz_mtu3_cnt *const priv = counter_priv(counter);
int ret = 0;

+ mutex_lock(&priv->lock);
+
+ if (priv->count_is_enabled[count->id] == enable)
+ goto exit;
+
if (enable) {
- mutex_lock(&priv->lock);
- pm_runtime_get_sync(ch->dev);
+ pm_runtime_get_sync(counter->parent);
ret = rz_mtu3_initialize_counter(counter, count->id);
if (ret == 0)
priv->count_is_enabled[count->id] = true;
- mutex_unlock(&priv->lock);
} else {
- mutex_lock(&priv->lock);
rz_mtu3_terminate_counter(counter, count->id);
priv->count_is_enabled[count->id] = false;
- pm_runtime_put(ch->dev);
- mutex_unlock(&priv->lock);
+ pm_runtime_put(counter->parent);
}

+exit:
+ mutex_unlock(&priv->lock);
+
return ret;
}

@@ -540,9 +543,9 @@ static int rz_mtu3_cascade_counts_enable_get(struct counter_device *counter,
if (ret)
return ret;

- pm_runtime_get_sync(priv->ch->dev);
+ pm_runtime_get_sync(counter->parent);
tmdr = rz_mtu3_shared_reg_read(priv->ch, RZ_MTU3_TMDR3);
- pm_runtime_put(priv->ch->dev);
+ pm_runtime_put(counter->parent);
*cascade_enable = test_bit(RZ_MTU3_TMDR3_LWA, &tmdr);
mutex_unlock(&priv->lock);

@@ -559,10 +562,10 @@ static int rz_mtu3_cascade_counts_enable_set(struct counter_device *counter,
if (ret)
return ret;

- pm_runtime_get_sync(priv->ch->dev);
+ pm_runtime_get_sync(counter->parent);
rz_mtu3_shared_reg_update_bit(priv->ch, RZ_MTU3_TMDR3,
RZ_MTU3_TMDR3_LWA, cascade_enable);
- pm_runtime_put(priv->ch->dev);
+ pm_runtime_put(counter->parent);
mutex_unlock(&priv->lock);

return 0;
@@ -579,9 +582,9 @@ static int rz_mtu3_ext_input_phase_clock_select_get(struct counter_device *count
if (ret)
return ret;

- pm_runtime_get_sync(priv->ch->dev);
+ pm_runtime_get_sync(counter->parent);
tmdr = rz_mtu3_shared_reg_read(priv->ch, RZ_MTU3_TMDR3);
- pm_runtime_put(priv->ch->dev);
+ pm_runtime_put(counter->parent);
*ext_input_phase_clock_select = test_bit(RZ_MTU3_TMDR3_PHCKSEL, &tmdr);
mutex_unlock(&priv->lock);

@@ -598,11 +601,11 @@ static int rz_mtu3_ext_input_phase_clock_select_set(struct counter_device *count
if (ret)
return ret;

- pm_runtime_get_sync(priv->ch->dev);
+ pm_runtime_get_sync(counter->parent);
rz_mtu3_shared_reg_update_bit(priv->ch, RZ_MTU3_TMDR3,
RZ_MTU3_TMDR3_PHCKSEL,
ext_input_phase_clock_select);
- pm_runtime_put(priv->ch->dev);
+ pm_runtime_put(counter->parent);
mutex_unlock(&priv->lock);

return 0;
@@ -640,7 +643,7 @@ static int rz_mtu3_action_read(struct counter_device *counter,
if (ret)
return ret;

- ret = rz_mtu3_count_function_read_helper(ch, priv, &function);
+ ret = rz_mtu3_count_function_read_helper(ch, counter, &function);
if (ret) {
mutex_unlock(&priv->lock);
return ret;
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 8f5474612b31..00a26fa6292c 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -468,13 +468,13 @@ int cpufreq_dbs_governor_init(struct cpufreq_policy *policy)
/* Failure, so roll back. */
pr_err("initialization failed (dbs_data kobject init error %d)\n", ret);

- kobject_put(&dbs_data->attr_set.kobj);
-
policy->governor_data = NULL;

if (!have_governor_per_policy())
gov->gdbs_data = NULL;
- gov->exit(dbs_data);
+
+ kobject_put(&dbs_data->attr_set.kobj);
+ goto free_policy_dbs_info;

free_dbs_data:
kfree(dbs_data);
diff --git a/drivers/crypto/caam/caamalg_qi2.c b/drivers/crypto/caam/caamalg_qi2.c
index a148ff1f0872..06e0681fdbe1 100644
--- a/drivers/crypto/caam/caamalg_qi2.c
+++ b/drivers/crypto/caam/caamalg_qi2.c
@@ -3325,9 +3325,10 @@ static int ahash_setkey(struct crypto_ahash *ahash, const u8 *key,
if (aligned_len < keylen)
return -EOVERFLOW;

- hashed_key = kmemdup(key, aligned_len, GFP_KERNEL);
+ hashed_key = kmalloc(aligned_len, GFP_KERNEL);
if (!hashed_key)
return -ENOMEM;
+ memcpy(hashed_key, key, keylen);
ret = hash_digest_key(ctx, &keylen, hashed_key, digestsize);
if (ret)
goto bad_free_key;
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index 65785dc5b73b..30cc46c4c33a 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -441,9 +441,10 @@ static int ahash_setkey(struct crypto_ahash *ahash,
if (aligned_len < keylen)
return -EOVERFLOW;

- hashed_key = kmemdup(key, keylen, GFP_KERNEL);
+ hashed_key = kmalloc(aligned_len, GFP_KERNEL);
if (!hashed_key)
return -ENOMEM;
+ memcpy(hashed_key, key, keylen);
ret = hash_digest_key(ctx, &keylen, hashed_key, digestsize);
if (ret)
goto bad_free_key;
diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c
index 34b194759d21..745870d46902 100644
--- a/drivers/dma/fsl-edma-main.c
+++ b/drivers/dma/fsl-edma-main.c
@@ -142,7 +142,7 @@ static struct dma_chan *fsl_edma3_xlate(struct of_phandle_args *dma_spec,

b_chmux = !!(fsl_edma->drvdata->flags & FSL_EDMA_DRV_HAS_CHMUX);

- mutex_lock(&fsl_edma->fsl_edma_mutex);
+ guard(mutex)(&fsl_edma->fsl_edma_mutex);
list_for_each_entry_safe(chan, _chan, &fsl_edma->dma_dev.channels,
device_node) {

@@ -152,10 +152,8 @@ static struct dma_chan *fsl_edma3_xlate(struct of_phandle_args *dma_spec,
fsl_chan = to_fsl_edma_chan(chan);
i = fsl_chan - fsl_edma->chans;

- fsl_chan->priority = dma_spec->args[1];
- fsl_chan->is_rxchan = dma_spec->args[2] & FSL_EDMA_RX;
- fsl_chan->is_remote = dma_spec->args[2] & FSL_EDMA_REMOTE;
- fsl_chan->is_multi_fifo = dma_spec->args[2] & FSL_EDMA_MULTI_FIFO;
+ if (!b_chmux && i != dma_spec->args[0])
+ continue;

if ((dma_spec->args[2] & FSL_EDMA_EVEN_CH) && (i & 0x1))
continue;
@@ -163,21 +161,16 @@ static struct dma_chan *fsl_edma3_xlate(struct of_phandle_args *dma_spec,
if ((dma_spec->args[2] & FSL_EDMA_ODD_CH) && !(i & 0x1))
continue;

- if (!b_chmux && i == dma_spec->args[0]) {
- chan = dma_get_slave_channel(chan);
- chan->device->privatecnt++;
- mutex_unlock(&fsl_edma->fsl_edma_mutex);
- return chan;
- } else if (b_chmux && !fsl_chan->srcid) {
- /* if controller support channel mux, choose a free channel */
- chan = dma_get_slave_channel(chan);
- chan->device->privatecnt++;
- fsl_chan->srcid = dma_spec->args[0];
- mutex_unlock(&fsl_edma->fsl_edma_mutex);
- return chan;
- }
+ fsl_chan->srcid = dma_spec->args[0];
+ fsl_chan->priority = dma_spec->args[1];
+ fsl_chan->is_rxchan = dma_spec->args[2] & FSL_EDMA_RX;
+ fsl_chan->is_remote = dma_spec->args[2] & FSL_EDMA_REMOTE;
+ fsl_chan->is_multi_fifo = dma_spec->args[2] & FSL_EDMA_MULTI_FIFO;
+
+ chan = dma_get_slave_channel(chan);
+ chan->device->privatecnt++;
+ return chan;
}
- mutex_unlock(&fsl_edma->fsl_edma_mutex);
return NULL;
}

diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 619b6fb9d833..3cdc2b218a86 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -576,12 +576,13 @@ static bool mxc_gpio_set_pad_wakeup(struct mxc_gpio_port *port, bool enable)
unsigned long config;
bool ret = false;
int i, type;
+ bool is_imx8qm = of_device_is_compatible(port->dev->of_node, "fsl,imx8qm-gpio");

static const u32 pad_type_map[] = {
IMX_SCU_WAKEUP_OFF, /* 0 */
IMX_SCU_WAKEUP_RISE_EDGE, /* IRQ_TYPE_EDGE_RISING */
IMX_SCU_WAKEUP_FALL_EDGE, /* IRQ_TYPE_EDGE_FALLING */
- IMX_SCU_WAKEUP_FALL_EDGE, /* IRQ_TYPE_EDGE_BOTH */
+ IMX_SCU_WAKEUP_RISE_EDGE, /* IRQ_TYPE_EDGE_BOTH */
IMX_SCU_WAKEUP_HIGH_LVL, /* IRQ_TYPE_LEVEL_HIGH */
IMX_SCU_WAKEUP_OFF, /* 5 */
IMX_SCU_WAKEUP_OFF, /* 6 */
@@ -596,6 +597,13 @@ static bool mxc_gpio_set_pad_wakeup(struct mxc_gpio_port *port, bool enable)
config = pad_type_map[type];
else
config = IMX_SCU_WAKEUP_OFF;
+
+ if (is_imx8qm && config == IMX_SCU_WAKEUP_FALL_EDGE) {
+ dev_warn_once(port->dev,
+ "No falling-edge support for wakeup on i.MX8QM\n");
+ config = IMX_SCU_WAKEUP_OFF;
+ }
+
ret |= mxc_gpio_generic_config(port, i, config);
}
}
diff --git a/drivers/gpu/drm/ast/ast_dp501.c b/drivers/gpu/drm/ast/ast_dp501.c
index f10d53b0c94f..7c0a80f4da2a 100644
--- a/drivers/gpu/drm/ast/ast_dp501.c
+++ b/drivers/gpu/drm/ast/ast_dp501.c
@@ -439,7 +439,7 @@ static void ast_init_analog(struct drm_device *dev)
/* Finally, clear bits [17:16] of SCU2c */
data = ast_read32(ast, 0x1202c);
data &= 0xfffcffff;
- ast_write32(ast, 0, data);
+ ast_write32(ast, 0x1202c, data);

/* Disable DVO */
ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xcf, 0x00);
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index 49a743f62b4a..7afa24cf305e 100644
--- a/drivers/gpu/drm/drm_ioc32.c
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -28,6 +28,7 @@
* IN THE SOFTWARE.
*/
#include <linux/compat.h>
+#include <linux/nospec.h>
#include <linux/ratelimit.h>
#include <linux/export.h>

@@ -983,6 +984,7 @@ long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
if (nr >= ARRAY_SIZE(drm_compat_ioctls))
return drm_ioctl(filp, cmd, arg);

+ nr = array_index_nospec(nr, ARRAY_SIZE(drm_compat_ioctls));
fn = drm_compat_ioctls[nr].fn;
if (!fn)
return drm_ioctl(filp, cmd, arg);
diff --git a/drivers/gpu/drm/i915/display/g4x_dp.c b/drivers/gpu/drm/i915/display/g4x_dp.c
index e8ee0a08947e..f2ccd44ed1a0 100644
--- a/drivers/gpu/drm/i915/display/g4x_dp.c
+++ b/drivers/gpu/drm/i915/display/g4x_dp.c
@@ -132,7 +132,7 @@ static void intel_dp_prepare(struct intel_encoder *encoder,
intel_dp->DP |= DP_SYNC_VS_HIGH;
intel_dp->DP |= DP_LINK_TRAIN_OFF_CPT;

- if (drm_dp_enhanced_frame_cap(intel_dp->dpcd))
+ if (pipe_config->enhanced_framing)
intel_dp->DP |= DP_ENHANCED_FRAMING;

intel_dp->DP |= DP_PIPE_SEL_IVB(crtc->pipe);
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index b6c2cb7153fd..003950894362 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -472,12 +472,19 @@ static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
dev_warn(&hdev->dev, "failed to fetch feature %d\n",
report->id);
} else {
+ /* The report ID in the request and the response should match */
+ if (report->id != buf[0]) {
+ hid_err(hdev, "Returned feature report did not match the request\n");
+ goto free;
+ }
+
ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf,
size, 0);
if (ret)
dev_warn(&hdev->dev, "failed to report feature\n");
}

+free:
kfree(buf);
}

diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 42bc8f05e263..859d0d9c5894 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1256,10 +1256,20 @@ static int wacom_intuos_bt_irq(struct wacom_wac *wacom, size_t len)

switch (data[0]) {
case 0x04:
+ if (len < 32) {
+ dev_warn(wacom->pen_input->dev.parent,
+ "Report 0x04 too short: %zu bytes\n", len);
+ break;
+ }
wacom_intuos_bt_process_data(wacom, data + i);
i += 10;
fallthrough;
case 0x03:
+ if (i == 1 && len < 22) {
+ dev_warn(wacom->pen_input->dev.parent,
+ "Report 0x03 too short: %zu bytes\n", len);
+ break;
+ }
wacom_intuos_bt_process_data(wacom, data + i);
i += 10;
wacom_intuos_bt_process_data(wacom, data + i);
diff --git a/drivers/hwmon/occ/common.c b/drivers/hwmon/occ/common.c
index 755926fa0bf7..58a103073fbc 100644
--- a/drivers/hwmon/occ/common.c
+++ b/drivers/hwmon/occ/common.c
@@ -420,6 +420,12 @@ static ssize_t occ_show_freq_2(struct device *dev,
return sysfs_emit(buf, "%u\n", val);
}

+static u64 occ_get_powr_avg(u64 accum, u32 samples)
+{
+ return (samples == 0) ? 0 :
+ mul_u64_u32_div(accum, 1000000UL, samples);
+}
+
static ssize_t occ_show_power_1(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -441,9 +447,8 @@ static ssize_t occ_show_power_1(struct device *dev,
val = get_unaligned_be16(&power->sensor_id);
break;
case 1:
- val = get_unaligned_be32(&power->accumulator) /
- get_unaligned_be32(&power->update_tag);
- val *= 1000000ULL;
+ val = occ_get_powr_avg(get_unaligned_be32(&power->accumulator),
+ get_unaligned_be32(&power->update_tag));
break;
case 2:
val = (u64)get_unaligned_be32(&power->update_tag) *
@@ -459,12 +464,6 @@ static ssize_t occ_show_power_1(struct device *dev,
return sysfs_emit(buf, "%llu\n", val);
}

-static u64 occ_get_powr_avg(u64 accum, u32 samples)
-{
- return (samples == 0) ? 0 :
- mul_u64_u32_div(accum, 1000000UL, samples);
-}
-
static ssize_t occ_show_power_2(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -725,7 +724,7 @@ static ssize_t occ_show_extended(struct device *dev,
switch (sattr->nr) {
case 0:
if (extn->flags & EXTN_FLAG_SENSOR_ID) {
- rc = sysfs_emit(buf, "%u",
+ rc = sysfs_emit(buf, "%u\n",
get_unaligned_be32(&extn->sensor_id));
} else {
rc = sysfs_emit(buf, "%4phN\n", extn->name);
diff --git a/drivers/hwmon/pmbus/pxe1610.c b/drivers/hwmon/pmbus/pxe1610.c
index e2790a682dc8..d37e389b50d7 100644
--- a/drivers/hwmon/pmbus/pxe1610.c
+++ b/drivers/hwmon/pmbus/pxe1610.c
@@ -104,7 +104,10 @@ static int pxe1610_probe(struct i2c_client *client)
* By default this device doesn't boot to page 0, so set page 0
* to access all pmbus registers.
*/
- i2c_smbus_write_byte_data(client, PMBUS_PAGE, 0);
+ ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, 0);
+ if (ret < 0)
+ return dev_err_probe(&client->dev, ret,
+ "Failed to set page 0\n");

/* Read Manufacturer id */
ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, buf);
diff --git a/drivers/hwmon/pmbus/tps53679.c b/drivers/hwmon/pmbus/tps53679.c
index 5c9466244d70..ecc1be33b3b1 100644
--- a/drivers/hwmon/pmbus/tps53679.c
+++ b/drivers/hwmon/pmbus/tps53679.c
@@ -156,8 +156,8 @@ static int tps53676_identify(struct i2c_client *client,
ret = i2c_smbus_read_block_data(client, PMBUS_IC_DEVICE_ID, buf);
if (ret < 0)
return ret;
- if (strncmp("TI\x53\x67\x60", buf, 5)) {
- dev_err(&client->dev, "Unexpected device ID: %s\n", buf);
+ if (ret != 6 || memcmp(buf, "TI\x53\x67\x60\x00", 6)) {
+ dev_err(&client->dev, "Unexpected device ID: %*ph\n", ret, buf);
return -ENODEV;
}

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 8d4270664ebd..79ab924a4b2b 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -1139,6 +1139,8 @@ config I2C_TEGRA
tristate "NVIDIA Tegra internal I2C controller"
depends on ARCH_TEGRA || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
# COMPILE_TEST needs architectures with readsX()/writesX() primitives
+ depends on PINCTRL
+ # ARCH_TEGRA implies PINCTRL, but the COMPILE_TEST side doesn't.
help
If you say yes to this option, support will be included for the
I2C controller embedded in NVIDIA Tegra SOCs
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 5766231b13cd..a882f0f65d82 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -1788,8 +1788,11 @@ static int tegra_i2c_probe(struct platform_device *pdev)
*
* VI I2C device shouldn't be marked as IRQ-safe because VI I2C won't
* be used for atomic transfers. ACPI device is not IRQ safe also.
+ *
+ * Devices with pinctrl states cannot be marked IRQ-safe as the pinctrl
+ * state transitions during runtime PM require mutexes.
*/
- if (!IS_VI(i2c_dev) && !has_acpi_companion(i2c_dev->dev))
+ if (!IS_VI(i2c_dev) && !has_acpi_companion(i2c_dev->dev) && !i2c_dev->dev->pins)
pm_runtime_irq_safe(i2c_dev->dev);

pm_runtime_enable(i2c_dev->dev);
diff --git a/drivers/iio/accel/adxl355_core.c b/drivers/iio/accel/adxl355_core.c
index 93b8bd6f929d..4493c96c576a 100644
--- a/drivers/iio/accel/adxl355_core.c
+++ b/drivers/iio/accel/adxl355_core.c
@@ -745,7 +745,7 @@ static const struct iio_chan_spec adxl355_channels[] = {
BIT(IIO_CHAN_INFO_OFFSET),
.scan_index = 3,
.scan_type = {
- .sign = 's',
+ .sign = 'u',
.realbits = 12,
.storagebits = 16,
.endianness = IIO_BE,
diff --git a/drivers/iio/adc/ti-adc161s626.c b/drivers/iio/adc/ti-adc161s626.c
index b789891dcf49..0b5efbdc573e 100644
--- a/drivers/iio/adc/ti-adc161s626.c
+++ b/drivers/iio/adc/ti-adc161s626.c
@@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/err.h>
#include <linux/spi/spi.h>
+#include <asm/unaligned.h>
#include <linux/iio/iio.h>
#include <linux/iio/trigger.h>
#include <linux/iio/buffer.h>
@@ -70,8 +71,7 @@ struct ti_adc_data {

u8 read_size;
u8 shift;
-
- u8 buffer[16] __aligned(IIO_DMA_MINALIGN);
+ u8 buf[3] __aligned(IIO_DMA_MINALIGN);
};

static int ti_adc_read_measurement(struct ti_adc_data *data,
@@ -80,26 +80,20 @@ static int ti_adc_read_measurement(struct ti_adc_data *data,
int ret;

switch (data->read_size) {
- case 2: {
- __be16 buf;
-
- ret = spi_read(data->spi, (void *) &buf, 2);
+ case 2:
+ ret = spi_read(data->spi, data->buf, 2);
if (ret)
return ret;

- *val = be16_to_cpu(buf);
+ *val = get_unaligned_be16(data->buf);
break;
- }
- case 3: {
- __be32 buf;
-
- ret = spi_read(data->spi, (void *) &buf, 3);
+ case 3:
+ ret = spi_read(data->spi, data->buf, 3);
if (ret)
return ret;

- *val = be32_to_cpu(buf) >> 8;
+ *val = get_unaligned_be24(data->buf);
break;
- }
default:
return -EINVAL;
}
@@ -114,15 +108,20 @@ static irqreturn_t ti_adc_trigger_handler(int irq, void *private)
struct iio_poll_func *pf = private;
struct iio_dev *indio_dev = pf->indio_dev;
struct ti_adc_data *data = iio_priv(indio_dev);
- int ret;
+ struct {
+ s16 data;
+ aligned_s64 timestamp;
+ } scan = { };
+ int ret, val;
+
+ ret = ti_adc_read_measurement(data, &indio_dev->channels[0], &val);
+ if (ret)
+ goto exit_notify_done;

- ret = ti_adc_read_measurement(data, &indio_dev->channels[0],
- (int *) &data->buffer);
- if (!ret)
- iio_push_to_buffers_with_timestamp(indio_dev,
- data->buffer,
- iio_get_time_ns(indio_dev));
+ scan.data = val;
+ iio_push_to_buffers_with_timestamp(indio_dev, &scan, iio_get_time_ns(indio_dev));

+ exit_notify_done:
iio_trigger_notify_done(indio_dev->trig);

return IRQ_HANDLED;
diff --git a/drivers/iio/dac/ad5770r.c b/drivers/iio/dac/ad5770r.c
index f66d67402e43..69b6ba343032 100644
--- a/drivers/iio/dac/ad5770r.c
+++ b/drivers/iio/dac/ad5770r.c
@@ -323,7 +323,7 @@ static int ad5770r_read_raw(struct iio_dev *indio_dev,
chan->address,
st->transf_buf, 2);
if (ret)
- return 0;
+ return ret;

buf16 = st->transf_buf[0] + (st->transf_buf[1] << 8);
*val = buf16 >> 2;
diff --git a/drivers/iio/gyro/mpu3050-core.c b/drivers/iio/gyro/mpu3050-core.c
index b50c62412d20..695269359621 100644
--- a/drivers/iio/gyro/mpu3050-core.c
+++ b/drivers/iio/gyro/mpu3050-core.c
@@ -1139,11 +1139,16 @@ static int mpu3050_trigger_probe(struct iio_dev *indio_dev, int irq)

ret = iio_trigger_register(mpu3050->trig);
if (ret)
- return ret;
+ goto err_iio_trigger;

indio_dev->trig = iio_trigger_get(mpu3050->trig);

return 0;
+
+err_iio_trigger:
+ free_irq(mpu3050->irq, mpu3050->trig);
+
+ return ret;
}

int mpu3050_common_probe(struct device *dev,
@@ -1231,12 +1236,6 @@ int mpu3050_common_probe(struct device *dev,
goto err_power_down;
}

- ret = iio_device_register(indio_dev);
- if (ret) {
- dev_err(dev, "device register failed\n");
- goto err_cleanup_buffer;
- }
-
dev_set_drvdata(dev, indio_dev);

/* Check if we have an assigned IRQ to use as trigger */
@@ -1259,9 +1258,20 @@ int mpu3050_common_probe(struct device *dev,
pm_runtime_use_autosuspend(dev);
pm_runtime_put(dev);

+ ret = iio_device_register(indio_dev);
+ if (ret) {
+ dev_err(dev, "device register failed\n");
+ goto err_iio_device_register;
+ }
+
return 0;

-err_cleanup_buffer:
+err_iio_device_register:
+ pm_runtime_get_sync(dev);
+ pm_runtime_put_noidle(dev);
+ pm_runtime_disable(dev);
+ if (irq)
+ free_irq(mpu3050->irq, mpu3050->trig);
iio_triggered_buffer_cleanup(indio_dev);
err_power_down:
mpu3050_power_down(mpu3050);
@@ -1274,13 +1284,13 @@ void mpu3050_common_remove(struct device *dev)
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct mpu3050 *mpu3050 = iio_priv(indio_dev);

+ iio_device_unregister(indio_dev);
pm_runtime_get_sync(dev);
pm_runtime_put_noidle(dev);
pm_runtime_disable(dev);
- iio_triggered_buffer_cleanup(indio_dev);
if (mpu3050->irq)
- free_irq(mpu3050->irq, mpu3050);
- iio_device_unregister(indio_dev);
+ free_irq(mpu3050->irq, mpu3050->trig);
+ iio_triggered_buffer_cleanup(indio_dev);
mpu3050_power_down(mpu3050);
}

diff --git a/drivers/iio/imu/bmi160/bmi160_core.c b/drivers/iio/imu/bmi160/bmi160_core.c
index a77f1a8348ff..3e98a7110cbe 100644
--- a/drivers/iio/imu/bmi160/bmi160_core.c
+++ b/drivers/iio/imu/bmi160/bmi160_core.c
@@ -568,12 +568,16 @@ static int bmi160_config_pin(struct regmap *regmap, enum bmi160_int_pin pin,
int_out_ctrl_shift = BMI160_INT1_OUT_CTRL_SHIFT;
int_latch_mask = BMI160_INT1_LATCH_MASK;
int_map_mask = BMI160_INT1_MAP_DRDY_EN;
+ pin_name = "INT1";
break;
case BMI160_PIN_INT2:
int_out_ctrl_shift = BMI160_INT2_OUT_CTRL_SHIFT;
int_latch_mask = BMI160_INT2_LATCH_MASK;
int_map_mask = BMI160_INT2_MAP_DRDY_EN;
+ pin_name = "INT2";
break;
+ default:
+ return -EINVAL;
}
int_out_ctrl_mask = BMI160_INT_OUT_CTRL_MASK << int_out_ctrl_shift;

@@ -607,17 +611,8 @@ static int bmi160_config_pin(struct regmap *regmap, enum bmi160_int_pin pin,
ret = bmi160_write_conf_reg(regmap, BMI160_REG_INT_MAP,
int_map_mask, int_map_mask,
write_usleep);
- if (ret) {
- switch (pin) {
- case BMI160_PIN_INT1:
- pin_name = "INT1";
- break;
- case BMI160_PIN_INT2:
- pin_name = "INT2";
- break;
- }
+ if (ret)
dev_err(dev, "Failed to configure %s IRQ pin", pin_name);
- }

return ret;
}
diff --git a/drivers/iio/imu/bno055/bno055.c b/drivers/iio/imu/bno055/bno055.c
index 98f17c29da69..7b58b418b8a8 100644
--- a/drivers/iio/imu/bno055/bno055.c
+++ b/drivers/iio/imu/bno055/bno055.c
@@ -64,7 +64,7 @@
#define BNO055_GRAVITY_DATA_X_LSB_REG 0x2E
#define BNO055_GRAVITY_DATA_Y_LSB_REG 0x30
#define BNO055_GRAVITY_DATA_Z_LSB_REG 0x32
-#define BNO055_SCAN_CH_COUNT ((BNO055_GRAVITY_DATA_Z_LSB_REG - BNO055_ACC_DATA_X_LSB_REG) / 2)
+#define BNO055_SCAN_CH_COUNT ((BNO055_GRAVITY_DATA_Z_LSB_REG - BNO055_ACC_DATA_X_LSB_REG) / 2 + 1)
#define BNO055_TEMP_REG 0x34
#define BNO055_CALIB_STAT_REG 0x35
#define BNO055_CALIB_STAT_MAGN_SHIFT 0
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c
index aca6ce758890..743580ea5845 100644
--- a/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c
+++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c
@@ -378,6 +378,7 @@ static int inv_icm42600_buffer_predisable(struct iio_dev *indio_dev)
static int inv_icm42600_buffer_postdisable(struct iio_dev *indio_dev)
{
struct inv_icm42600_state *st = iio_device_get_drvdata(indio_dev);
+ struct inv_sensors_timestamp *ts = iio_priv(indio_dev);
struct device *dev = regmap_get_device(st->map);
unsigned int sensor;
unsigned int *watermark;
@@ -399,6 +400,8 @@ static int inv_icm42600_buffer_postdisable(struct iio_dev *indio_dev)

mutex_lock(&st->lock);

+ inv_sensors_timestamp_apply_odr(ts, 0, 0, 0);
+
ret = inv_icm42600_buffer_set_fifo_en(st, st->fifo.en & ~sensor);
if (ret)
goto out_unlock;
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
index b8119fa4768e..d00e82b9c3bb 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
@@ -202,6 +202,10 @@ static int st_lsm6dsx_set_fifo_odr(struct st_lsm6dsx_sensor *sensor,
const struct st_lsm6dsx_reg *batch_reg;
u8 data;

+ /* Only internal sensors have a FIFO ODR configuration register. */
+ if (sensor->id >= ARRAY_SIZE(hw->settings->batch))
+ return 0;
+
batch_reg = &hw->settings->batch[sensor->id];
if (batch_reg->addr) {
int val;
diff --git a/drivers/iio/light/vcnl4035.c b/drivers/iio/light/vcnl4035.c
index fe3c4c5db620..d4a72c5184ba 100644
--- a/drivers/iio/light/vcnl4035.c
+++ b/drivers/iio/light/vcnl4035.c
@@ -105,17 +105,23 @@ static irqreturn_t vcnl4035_trigger_consumer_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct vcnl4035_data *data = iio_priv(indio_dev);
/* Ensure naturally aligned timestamp */
- u8 buffer[ALIGN(sizeof(u16), sizeof(s64)) + sizeof(s64)] __aligned(8) = { };
+ struct {
+ u16 als_data;
+ aligned_s64 timestamp;
+ } buffer = { };
+ unsigned int val;
int ret;

- ret = regmap_read(data->regmap, VCNL4035_ALS_DATA, (int *)buffer);
+ ret = regmap_read(data->regmap, VCNL4035_ALS_DATA, &val);
if (ret < 0) {
dev_err(&data->client->dev,
"Trigger consumer can't read from sensor.\n");
goto fail_read;
}
- iio_push_to_buffers_with_timestamp(indio_dev, buffer,
- iio_get_time_ns(indio_dev));
+
+ buffer.als_data = val;
+ iio_push_to_buffers_with_timestamp(indio_dev, &buffer,
+ iio_get_time_ns(indio_dev));

fail_read:
iio_trigger_notify_done(indio_dev->trig);
@@ -378,7 +384,7 @@ static const struct iio_chan_spec vcnl4035_channels[] = {
.sign = 'u',
.realbits = 16,
.storagebits = 16,
- .endianness = IIO_LE,
+ .endianness = IIO_CPU,
},
},
{
@@ -392,7 +398,7 @@ static const struct iio_chan_spec vcnl4035_channels[] = {
.sign = 'u',
.realbits = 16,
.storagebits = 16,
- .endianness = IIO_LE,
+ .endianness = IIO_CPU,
},
},
};
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 09fcc14051f2..fc484b35e776 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -307,6 +307,8 @@ static const struct xpad_device {
{ 0x1532, 0x0a00, "Razer Atrox Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
{ 0x1532, 0x0a03, "Razer Wildcat", 0, XTYPE_XBOXONE },
{ 0x1532, 0x0a29, "Razer Wolverine V2", 0, XTYPE_XBOXONE },
+ { 0x1532, 0x0a57, "Razer Wolverine V3 Pro (Wired)", 0, XTYPE_XBOX360 },
+ { 0x1532, 0x0a59, "Razer Wolverine V3 Pro (2.4 GHz Dongle)", 0, XTYPE_XBOX360 },
{ 0x15e4, 0x3f00, "Power A Mini Pro Elite", 0, XTYPE_XBOX360 },
{ 0x15e4, 0x3f0a, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
{ 0x15e4, 0x3f10, "Batarang Xbox 360 controller", 0, XTYPE_XBOX360 },
@@ -354,6 +356,8 @@ static const struct xpad_device {
{ 0x1bad, 0xfd00, "Razer Onza TE", 0, XTYPE_XBOX360 },
{ 0x1bad, 0xfd01, "Razer Onza", 0, XTYPE_XBOX360 },
{ 0x1ee9, 0x1590, "ZOTAC Gaming Zone", 0, XTYPE_XBOX360 },
+ { 0x20bc, 0x5134, "BETOP BTP-KP50B Xinput Dongle", 0, XTYPE_XBOX360 },
+ { 0x20bc, 0x514a, "BETOP BTP-KP50C Xinput Dongle", 0, XTYPE_XBOX360 },
{ 0x20d6, 0x2001, "BDA Xbox Series X Wired Controller", 0, XTYPE_XBOXONE },
{ 0x20d6, 0x2009, "PowerA Enhanced Wired Controller for Xbox Series X|S", 0, XTYPE_XBOXONE },
{ 0x20d6, 0x2064, "PowerA Wired Controller for Xbox", MAP_SHARE_BUTTON, XTYPE_XBOXONE },
@@ -547,6 +551,7 @@ static const struct usb_device_id xpad_table[] = {
XPAD_XBOX360_VENDOR(0x1a86), /* Nanjing Qinheng Microelectronics (WCH) */
XPAD_XBOX360_VENDOR(0x1bad), /* Harmonix Rock Band guitar and drums */
XPAD_XBOX360_VENDOR(0x1ee9), /* ZOTAC Technology Limited */
+ XPAD_XBOX360_VENDOR(0x20bc), /* BETOP wireless dongles */
XPAD_XBOX360_VENDOR(0x20d6), /* PowerA controllers */
XPAD_XBOXONE_VENDOR(0x20d6), /* PowerA controllers */
XPAD_XBOX360_VENDOR(0x24c6), /* PowerA controllers */
diff --git a/drivers/input/rmi4/rmi_f54.c b/drivers/input/rmi4/rmi_f54.c
index 5c3da910b5b2..a035b04b43ce 100644
--- a/drivers/input/rmi4/rmi_f54.c
+++ b/drivers/input/rmi4/rmi_f54.c
@@ -540,6 +540,8 @@ static void rmi_f54_work(struct work_struct *work)
int error;
int i;

+ mutex_lock(&f54->data_mutex);
+
report_size = rmi_f54_get_report_size(f54);
if (report_size == 0) {
dev_err(&fn->dev, "Bad report size, report type=%d\n",
@@ -548,8 +550,6 @@ static void rmi_f54_work(struct work_struct *work)
goto error; /* retry won't help */
}

- mutex_lock(&f54->data_mutex);
-
/*
* Need to check if command has completed.
* If not try again later.
diff --git a/drivers/input/serio/i8042-acpipnpio.h b/drivers/input/serio/i8042-acpipnpio.h
index d492aa93a7c3..0cf55ec6d0b4 100644
--- a/drivers/input/serio/i8042-acpipnpio.h
+++ b/drivers/input/serio/i8042-acpipnpio.h
@@ -1187,6 +1187,13 @@ static const struct dmi_system_id i8042_dmi_quirk_table[] __initconst = {
.driver_data = (void *)(SERIO_QUIRK_NOMUX | SERIO_QUIRK_RESET_ALWAYS |
SERIO_QUIRK_NOLOOP | SERIO_QUIRK_NOPNP)
},
+ {
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "X6KK45xU_X6SP45xU"),
+ },
+ .driver_data = (void *)(SERIO_QUIRK_NOMUX | SERIO_QUIRK_RESET_ALWAYS |
+ SERIO_QUIRK_NOLOOP | SERIO_QUIRK_NOPNP)
+ },
{
.matches = {
DMI_MATCH(DMI_BOARD_NAME, "WUJIE Series-X5SP4NAG"),
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index c110fb606dfb..30f10e79cc6e 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -1374,6 +1374,7 @@ static int fastrpc_init_create_static_process(struct fastrpc_user *fl,
}
err_map:
fastrpc_buf_free(fl->cctx->remote_heap);
+ fl->cctx->remote_heap = NULL;
err_name:
kfree(name);
err:
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index ea4973096aa2..1ffd98a1c741 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -12212,7 +12212,7 @@ static int tg3_get_link_ksettings(struct net_device *dev,
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
advertising);

- if (netif_running(dev) && tp->link_up) {
+ if (netif_running(dev) && netif_carrier_ok(dev)) {
cmd->base.speed = tp->link_config.active_speed;
cmd->base.duplex = tp->link_config.active_duplex;
ethtool_convert_legacy_u32_to_link_mode(
@@ -16945,6 +16945,13 @@ static int tg3_get_invariants(struct tg3 *tp, const struct pci_device_id *ent)
return err;
}

+static int tg3_is_default_mac_address(u8 *addr)
+{
+ static const u8 default_mac_address[ETH_ALEN] = { 0x00, 0x10, 0x18, 0x00, 0x00, 0x00 };
+
+ return ether_addr_equal(default_mac_address, addr);
+}
+
static int tg3_get_device_address(struct tg3 *tp, u8 *addr)
{
u32 hi, lo, mac_offset;
@@ -17016,6 +17023,10 @@ static int tg3_get_device_address(struct tg3 *tp, u8 *addr)

if (!is_valid_ether_addr(addr))
return -EINVAL;
+
+ if (tg3_is_default_mac_address(addr))
+ return device_get_mac_address(&tp->pdev->dev, addr);
+
return 0;
}

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 743dd6e31a62..aac62db4ee14 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -5384,6 +5384,8 @@ static int __maybe_unused macb_suspend(struct device *dev)
macb_writel(bp, TSR, -1);
macb_writel(bp, RSR, -1);

+ spin_unlock_irqrestore(&bp->lock, flags);
+
/* Change interrupt handler and
* Enable WoL IRQ on queue 0
*/
@@ -5395,11 +5397,12 @@ static int __maybe_unused macb_suspend(struct device *dev)
dev_err(dev,
"Unable to request IRQ %d (error %d)\n",
bp->queues[0].irq, err);
- spin_unlock_irqrestore(&bp->lock, flags);
return err;
}
+ spin_lock_irqsave(&bp->lock, flags);
queue_writel(bp->queues, IER, GEM_BIT(WOL));
gem_writel(bp, WOL, MACB_BIT(MAG));
+ spin_unlock_irqrestore(&bp->lock, flags);
} else {
err = devm_request_irq(dev, bp->queues[0].irq, macb_wol_interrupt,
IRQF_SHARED, netdev->name, bp->queues);
@@ -5407,13 +5410,13 @@ static int __maybe_unused macb_suspend(struct device *dev)
dev_err(dev,
"Unable to request IRQ %d (error %d)\n",
bp->queues[0].irq, err);
- spin_unlock_irqrestore(&bp->lock, flags);
return err;
}
+ spin_lock_irqsave(&bp->lock, flags);
queue_writel(bp->queues, IER, MACB_BIT(WOL));
macb_writel(bp, WOL, MACB_BIT(MAG));
+ spin_unlock_irqrestore(&bp->lock, flags);
}
- spin_unlock_irqrestore(&bp->lock, flags);

enable_irq_wake(bp->queues[0].irq);
}
@@ -5480,6 +5483,8 @@ static int __maybe_unused macb_resume(struct device *dev)
queue_readl(bp->queues, ISR);
if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE)
queue_writel(bp->queues, ISR, -1);
+ spin_unlock_irqrestore(&bp->lock, flags);
+
/* Replace interrupt handler on queue 0 */
devm_free_irq(dev, bp->queues[0].irq, bp->queues);
err = devm_request_irq(dev, bp->queues[0].irq, macb_interrupt,
@@ -5488,10 +5493,8 @@ static int __maybe_unused macb_resume(struct device *dev)
dev_err(dev,
"Unable to request IRQ %d (error %d)\n",
bp->queues[0].irq, err);
- spin_unlock_irqrestore(&bp->lock, flags);
return err;
}
- spin_unlock_irqrestore(&bp->lock, flags);

disable_irq_wake(bp->queues[0].irq);

diff --git a/drivers/net/ethernet/cadence/macb_pci.c b/drivers/net/ethernet/cadence/macb_pci.c
index f66d22de5168..34e249e0e586 100644
--- a/drivers/net/ethernet/cadence/macb_pci.c
+++ b/drivers/net/ethernet/cadence/macb_pci.c
@@ -97,10 +97,10 @@ static int macb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return 0;

err_plat_dev_register:
- clk_unregister(plat_data.hclk);
+ clk_unregister_fixed_rate(plat_data.hclk);

err_hclk_register:
- clk_unregister(plat_data.pclk);
+ clk_unregister_fixed_rate(plat_data.pclk);

err_pclk_register:
return err;
@@ -110,10 +110,12 @@ static void macb_remove(struct pci_dev *pdev)
{
struct platform_device *plat_dev = pci_get_drvdata(pdev);
struct macb_platform_data *plat_data = dev_get_platdata(&plat_dev->dev);
+ struct clk *pclk = plat_data->pclk;
+ struct clk *hclk = plat_data->hclk;

- clk_unregister(plat_data->pclk);
- clk_unregister(plat_data->hclk);
platform_device_unregister(plat_dev);
+ clk_unregister_fixed_rate(pclk);
+ clk_unregister_fixed_rate(hclk);
}

static const struct pci_device_id dev_id_table[] = {
diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index 848e41a4b1db..2387762c37ea 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -934,19 +934,19 @@ static int ftgmac100_alloc_rings(struct ftgmac100 *priv)
priv->tx_skbs = kcalloc(MAX_TX_QUEUE_ENTRIES, sizeof(void *),
GFP_KERNEL);
if (!priv->tx_skbs)
- return -ENOMEM;
+ goto err_free_rx_skbs;

/* Allocate descriptors */
priv->rxdes = dma_alloc_coherent(priv->dev,
MAX_RX_QUEUE_ENTRIES * sizeof(struct ftgmac100_rxdes),
&priv->rxdes_dma, GFP_KERNEL);
if (!priv->rxdes)
- return -ENOMEM;
+ goto err_free_tx_skbs;
priv->txdes = dma_alloc_coherent(priv->dev,
MAX_TX_QUEUE_ENTRIES * sizeof(struct ftgmac100_txdes),
&priv->txdes_dma, GFP_KERNEL);
if (!priv->txdes)
- return -ENOMEM;
+ goto err_free_rxdes;

/* Allocate scratch packet buffer */
priv->rx_scratch = dma_alloc_coherent(priv->dev,
@@ -954,9 +954,29 @@ static int ftgmac100_alloc_rings(struct ftgmac100 *priv)
&priv->rx_scratch_dma,
GFP_KERNEL);
if (!priv->rx_scratch)
- return -ENOMEM;
+ goto err_free_txdes;

return 0;
+
+err_free_txdes:
+ dma_free_coherent(priv->dev,
+ MAX_TX_QUEUE_ENTRIES *
+ sizeof(struct ftgmac100_txdes),
+ priv->txdes, priv->txdes_dma);
+ priv->txdes = NULL;
+err_free_rxdes:
+ dma_free_coherent(priv->dev,
+ MAX_RX_QUEUE_ENTRIES *
+ sizeof(struct ftgmac100_rxdes),
+ priv->rxdes, priv->rxdes_dma);
+ priv->rxdes = NULL;
+err_free_tx_skbs:
+ kfree(priv->tx_skbs);
+ priv->tx_skbs = NULL;
+err_free_rx_skbs:
+ kfree(priv->rx_skbs);
+ priv->rx_skbs = NULL;
+ return -ENOMEM;
}

static void ftgmac100_init_rings(struct ftgmac100 *priv)
diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c
index 4bb894b5afcb..778713c2fed4 100644
--- a/drivers/net/ethernet/freescale/fec_ptp.c
+++ b/drivers/net/ethernet/freescale/fec_ptp.c
@@ -546,9 +546,6 @@ static int fec_ptp_enable(struct ptp_clock_info *ptp,
if (rq->perout.flags)
return -EOPNOTSUPP;

- if (rq->perout.index != fep->pps_channel)
- return -EOPNOTSUPP;
-
period.tv_sec = rq->perout.period.sec;
period.tv_nsec = rq->perout.period.nsec;
period_ns = timespec64_to_ns(&period);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
index b2532b1c9565..8e8c15d82532 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
@@ -53,9 +53,7 @@ mlx5_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
if (err)
return err;

- err = mlx5_fw_version_query(dev, &running_fw, &stored_fw);
- if (err)
- return err;
+ mlx5_fw_version_query(dev, &running_fw, &stored_fw);

snprintf(version_str, sizeof(version_str), "%d.%d.%04d",
mlx5_fw_ver_major(running_fw), mlx5_fw_ver_minor(running_fw),
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw.c b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
index 70898f0a9866..d5de2df111ab 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
@@ -802,48 +802,63 @@ mlx5_fw_image_pending(struct mlx5_core_dev *dev,
return 0;
}

-int mlx5_fw_version_query(struct mlx5_core_dev *dev,
- u32 *running_ver, u32 *pending_ver)
+void mlx5_fw_version_query(struct mlx5_core_dev *dev,
+ u32 *running_ver, u32 *pending_ver)
{
u32 reg_mcqi_version[MLX5_ST_SZ_DW(mcqi_version)] = {};
bool pending_version_exists;
int component_index;
int err;

+ *running_ver = 0;
+ *pending_ver = 0;
+
if (!MLX5_CAP_GEN(dev, mcam_reg) || !MLX5_CAP_MCAM_REG(dev, mcqi) ||
!MLX5_CAP_MCAM_REG(dev, mcqs)) {
mlx5_core_warn(dev, "fw query isn't supported by the FW\n");
- return -EOPNOTSUPP;
+ return;
}

component_index = mlx5_get_boot_img_component_index(dev);
- if (component_index < 0)
- return component_index;
+ if (component_index < 0) {
+ mlx5_core_warn(dev, "fw query failed to find boot img component index, err %d\n",
+ component_index);
+ return;
+ }

+ *running_ver = U32_MAX; /* indicate failure */
err = mlx5_reg_mcqi_version_query(dev, component_index,
MCQI_FW_RUNNING_VERSION,
reg_mcqi_version);
- if (err)
- return err;
-
- *running_ver = MLX5_GET(mcqi_version, reg_mcqi_version, version);
-
+ if (!err)
+ *running_ver = MLX5_GET(mcqi_version, reg_mcqi_version,
+ version);
+ else
+ mlx5_core_warn(dev, "failed to query running version, err %d\n",
+ err);
+
+ *pending_ver = U32_MAX; /* indicate failure */
err = mlx5_fw_image_pending(dev, component_index, &pending_version_exists);
- if (err)
- return err;
+ if (err) {
+ mlx5_core_warn(dev, "failed to query pending image, err %d\n",
+ err);
+ return;
+ }

if (!pending_version_exists) {
*pending_ver = 0;
- return 0;
+ return;
}

err = mlx5_reg_mcqi_version_query(dev, component_index,
MCQI_FW_STORED_VERSION,
reg_mcqi_version);
- if (err)
- return err;
-
- *pending_ver = MLX5_GET(mcqi_version, reg_mcqi_version, version);
-
- return 0;
+ if (!err)
+ *pending_ver = MLX5_GET(mcqi_version, reg_mcqi_version,
+ version);
+ else
+ mlx5_core_warn(dev, "failed to query pending version, err %d\n",
+ err);
+
+ return;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c
index f4b777d4e108..41ddca52e954 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c
@@ -163,8 +163,11 @@ DEFINE_SHOW_ATTRIBUTE(members);

void mlx5_ldev_add_debugfs(struct mlx5_core_dev *dev)
{
+ struct mlx5_lag *ldev = mlx5_lag_dev(dev);
struct dentry *dbg;

+ if (!ldev)
+ return;
dbg = debugfs_create_dir("lag", mlx5_debugfs_get_dev_root(dev));
dev->priv.dbg.lag_debugfs = dbg;

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
index 124352459c23..562729cd95a8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
@@ -269,8 +269,8 @@ void mlx5_dm_cleanup(struct mlx5_core_dev *dev);

int mlx5_firmware_flash(struct mlx5_core_dev *dev, const struct firmware *fw,
struct netlink_ext_ack *extack);
-int mlx5_fw_version_query(struct mlx5_core_dev *dev,
- u32 *running_ver, u32 *stored_ver);
+void mlx5_fw_version_query(struct mlx5_core_dev *dev, u32 *running_ver,
+ u32 *stored_ver);

#ifdef CONFIG_MLX5_CORE_EN
int mlx5e_init(void);
diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c
index 926502e5e582..b56a337b1e21 100644
--- a/drivers/net/ethernet/microsoft/mana/mana_en.c
+++ b/drivers/net/ethernet/microsoft/mana/mana_en.c
@@ -2759,6 +2759,7 @@ static int add_adev(struct gdma_dev *gd)
struct auxiliary_device *adev;
struct mana_adev *madev;
int ret;
+ int id;

madev = kzalloc(sizeof(*madev), GFP_KERNEL);
if (!madev)
@@ -2768,7 +2769,8 @@ static int add_adev(struct gdma_dev *gd)
ret = mana_adev_idx_alloc();
if (ret < 0)
goto idx_fail;
- adev->id = ret;
+ id = ret;
+ adev->id = id;

adev->name = "rdma";
adev->dev.parent = gd->gdma_context->dev;
@@ -2792,7 +2794,7 @@ static int add_adev(struct gdma_dev *gd)
auxiliary_device_uninit(adev);

init_fail:
- mana_adev_idx_free(adev->id);
+ mana_adev_idx_free(id);

idx_fail:
kfree(madev);
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet.h b/drivers/net/ethernet/xilinx/xilinx_axienet.h
index 2facbdfbb319..e6a1611b7aab 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet.h
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet.h
@@ -103,7 +103,7 @@
#define XAXIDMA_BD_HAS_DRE_MASK 0xF00 /* Whether has DRE mask */
#define XAXIDMA_BD_WORDLEN_MASK 0xFF /* Whether has DRE mask */

-#define XAXIDMA_BD_CTRL_LENGTH_MASK 0x007FFFFF /* Requested len */
+#define XAXIDMA_BD_CTRL_LENGTH_MASK GENMASK(25, 0) /* Requested len */
#define XAXIDMA_BD_CTRL_TXSOF_MASK 0x08000000 /* First tx packet */
#define XAXIDMA_BD_CTRL_TXEOF_MASK 0x04000000 /* Last tx packet */
#define XAXIDMA_BD_CTRL_ALL_MASK 0x0C000000 /* All control bits */
@@ -129,7 +129,7 @@
#define XAXIDMA_BD_CTRL_TXEOF_MASK 0x04000000 /* Last tx packet */
#define XAXIDMA_BD_CTRL_ALL_MASK 0x0C000000 /* All control bits */

-#define XAXIDMA_BD_STS_ACTUAL_LEN_MASK 0x007FFFFF /* Actual len */
+#define XAXIDMA_BD_STS_ACTUAL_LEN_MASK GENMASK(25, 0) /* Actual len */
#define XAXIDMA_BD_STS_COMPLETE_MASK 0x80000000 /* Completed */
#define XAXIDMA_BD_STS_DEC_ERR_MASK 0x40000000 /* Decode error */
#define XAXIDMA_BD_STS_SLV_ERR_MASK 0x20000000 /* Slave error */
diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 00bbe20b0b43..165c624c985f 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -465,10 +465,15 @@ static void sfp_quirk_ubnt_uf_instant(const struct sfp_eeprom_id *id,
{
/* Ubiquiti U-Fiber Instant module claims that support all transceiver
* types including 10G Ethernet which is not truth. So clear all claimed
- * modes and set only one mode which module supports: 1000baseX_Full.
+ * modes and set only one mode which module supports: 1000baseX_Full,
+ * along with the Autoneg and pause bits.
*/
linkmode_zero(modes);
linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseX_Full_BIT, modes);
+ linkmode_set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, modes);
+ linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT, modes);
+ linkmode_set_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, modes);
+
phy_interface_zero(interfaces);
__set_bit(PHY_INTERFACE_MODE_1000BASEX, interfaces);
}
diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
index a862998fb3ba..1a973dcf2561 100644
--- a/drivers/net/vxlan/vxlan_core.c
+++ b/drivers/net/vxlan/vxlan_core.c
@@ -1964,12 +1964,14 @@ static struct sk_buff *vxlan_na_create(struct sk_buff *request,
ns_olen = request->len - skb_network_offset(request) -
sizeof(struct ipv6hdr) - sizeof(*ns);
for (i = 0; i < ns_olen-1; i += (ns->opt[i+1]<<3)) {
- if (!ns->opt[i + 1]) {
+ if (!ns->opt[i + 1] || i + (ns->opt[i + 1] << 3) > ns_olen) {
kfree_skb(reply);
return NULL;
}
if (ns->opt[i] == ND_OPT_SOURCE_LL_ADDR) {
- daddr = ns->opt + i + sizeof(struct nd_opt_hdr);
+ if ((ns->opt[i + 1] << 3) >=
+ sizeof(struct nd_opt_hdr) + ETH_ALEN)
+ daddr = ns->opt + i + sizeof(struct nd_opt_hdr);
break;
}
}
diff --git a/drivers/net/wireless/ath/ath11k/dp.h b/drivers/net/wireless/ath/ath11k/dp.h
index 2f6dd69d3be2..0ce26f76bb81 100644
--- a/drivers/net/wireless/ath/ath11k/dp.h
+++ b/drivers/net/wireless/ath/ath11k/dp.h
@@ -1,7 +1,7 @@
/* SPDX-License-Identifier: BSD-3-Clause-Clear */
/*
* Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2023, 2025 Qualcomm Innovation Center, Inc. All rights reserved.
*/

#ifndef ATH11K_DP_H
@@ -20,7 +20,6 @@ struct ath11k_ext_irq_grp;

struct dp_rx_tid {
u8 tid;
- u32 *vaddr;
dma_addr_t paddr;
u32 size;
u32 ba_win_sz;
@@ -37,6 +36,9 @@ struct dp_rx_tid {
/* Timer info related to fragments */
struct timer_list frag_timer;
struct ath11k_base *ab;
+ u32 *vaddr_unaligned;
+ dma_addr_t paddr_unaligned;
+ u32 unaligned_size;
};

#define DP_REO_DESC_FREE_THRESHOLD 64
diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index ed1ea61c8142..d2d994e09480 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
*/

#include <linux/ieee80211.h>
@@ -675,11 +675,11 @@ void ath11k_dp_reo_cmd_list_cleanup(struct ath11k_base *ab)
list_for_each_entry_safe(cmd, tmp, &dp->reo_cmd_list, list) {
list_del(&cmd->list);
rx_tid = &cmd->data;
- if (rx_tid->vaddr) {
- dma_unmap_single(ab->dev, rx_tid->paddr,
- rx_tid->size, DMA_BIDIRECTIONAL);
- kfree(rx_tid->vaddr);
- rx_tid->vaddr = NULL;
+ if (rx_tid->vaddr_unaligned) {
+ dma_free_noncoherent(ab->dev, rx_tid->unaligned_size,
+ rx_tid->vaddr_unaligned,
+ rx_tid->paddr_unaligned, DMA_BIDIRECTIONAL);
+ rx_tid->vaddr_unaligned = NULL;
}
kfree(cmd);
}
@@ -689,11 +689,11 @@ void ath11k_dp_reo_cmd_list_cleanup(struct ath11k_base *ab)
list_del(&cmd_cache->list);
dp->reo_cmd_cache_flush_count--;
rx_tid = &cmd_cache->data;
- if (rx_tid->vaddr) {
- dma_unmap_single(ab->dev, rx_tid->paddr,
- rx_tid->size, DMA_BIDIRECTIONAL);
- kfree(rx_tid->vaddr);
- rx_tid->vaddr = NULL;
+ if (rx_tid->vaddr_unaligned) {
+ dma_free_noncoherent(ab->dev, rx_tid->unaligned_size,
+ rx_tid->vaddr_unaligned,
+ rx_tid->paddr_unaligned, DMA_BIDIRECTIONAL);
+ rx_tid->vaddr_unaligned = NULL;
}
kfree(cmd_cache);
}
@@ -708,11 +708,11 @@ static void ath11k_dp_reo_cmd_free(struct ath11k_dp *dp, void *ctx,
if (status != HAL_REO_CMD_SUCCESS)
ath11k_warn(dp->ab, "failed to flush rx tid hw desc, tid %d status %d\n",
rx_tid->tid, status);
- if (rx_tid->vaddr) {
- dma_unmap_single(dp->ab->dev, rx_tid->paddr, rx_tid->size,
- DMA_BIDIRECTIONAL);
- kfree(rx_tid->vaddr);
- rx_tid->vaddr = NULL;
+ if (rx_tid->vaddr_unaligned) {
+ dma_free_noncoherent(dp->ab->dev, rx_tid->unaligned_size,
+ rx_tid->vaddr_unaligned,
+ rx_tid->paddr_unaligned, DMA_BIDIRECTIONAL);
+ rx_tid->vaddr_unaligned = NULL;
}
}

@@ -749,10 +749,10 @@ static void ath11k_dp_reo_cache_flush(struct ath11k_base *ab,
if (ret) {
ath11k_err(ab, "failed to send HAL_REO_CMD_FLUSH_CACHE cmd, tid %d (%d)\n",
rx_tid->tid, ret);
- dma_unmap_single(ab->dev, rx_tid->paddr, rx_tid->size,
- DMA_BIDIRECTIONAL);
- kfree(rx_tid->vaddr);
- rx_tid->vaddr = NULL;
+ dma_free_noncoherent(ab->dev, rx_tid->unaligned_size,
+ rx_tid->vaddr_unaligned,
+ rx_tid->paddr_unaligned, DMA_BIDIRECTIONAL);
+ rx_tid->vaddr_unaligned = NULL;
}
}

@@ -802,10 +802,10 @@ static void ath11k_dp_rx_tid_del_func(struct ath11k_dp *dp, void *ctx,

return;
free_desc:
- dma_unmap_single(ab->dev, rx_tid->paddr, rx_tid->size,
- DMA_BIDIRECTIONAL);
- kfree(rx_tid->vaddr);
- rx_tid->vaddr = NULL;
+ dma_free_noncoherent(ab->dev, rx_tid->unaligned_size,
+ rx_tid->vaddr_unaligned,
+ rx_tid->paddr_unaligned, DMA_BIDIRECTIONAL);
+ rx_tid->vaddr_unaligned = NULL;
}

void ath11k_peer_rx_tid_delete(struct ath11k *ar,
@@ -831,14 +831,16 @@ void ath11k_peer_rx_tid_delete(struct ath11k *ar,
if (ret != -ESHUTDOWN)
ath11k_err(ar->ab, "failed to send HAL_REO_CMD_UPDATE_RX_QUEUE cmd, tid %d (%d)\n",
tid, ret);
- dma_unmap_single(ar->ab->dev, rx_tid->paddr, rx_tid->size,
- DMA_BIDIRECTIONAL);
- kfree(rx_tid->vaddr);
- rx_tid->vaddr = NULL;
+ dma_free_noncoherent(ar->ab->dev, rx_tid->unaligned_size,
+ rx_tid->vaddr_unaligned,
+ rx_tid->paddr_unaligned, DMA_BIDIRECTIONAL);
+ rx_tid->vaddr_unaligned = NULL;
}

rx_tid->paddr = 0;
+ rx_tid->paddr_unaligned = 0;
rx_tid->size = 0;
+ rx_tid->unaligned_size = 0;
}

static int ath11k_dp_rx_link_desc_return(struct ath11k_base *ab,
@@ -982,10 +984,9 @@ static void ath11k_dp_rx_tid_mem_free(struct ath11k_base *ab,
if (!rx_tid->active)
goto unlock_exit;

- dma_unmap_single(ab->dev, rx_tid->paddr, rx_tid->size,
- DMA_BIDIRECTIONAL);
- kfree(rx_tid->vaddr);
- rx_tid->vaddr = NULL;
+ dma_free_noncoherent(ab->dev, rx_tid->unaligned_size, rx_tid->vaddr_unaligned,
+ rx_tid->paddr_unaligned, DMA_BIDIRECTIONAL);
+ rx_tid->vaddr_unaligned = NULL;

rx_tid->active = false;

@@ -1000,9 +1001,8 @@ int ath11k_peer_rx_tid_setup(struct ath11k *ar, const u8 *peer_mac, int vdev_id,
struct ath11k_base *ab = ar->ab;
struct ath11k_peer *peer;
struct dp_rx_tid *rx_tid;
- u32 hw_desc_sz;
- u32 *addr_aligned;
- void *vaddr;
+ u32 hw_desc_sz, *vaddr;
+ void *vaddr_unaligned;
dma_addr_t paddr;
int ret;

@@ -1050,49 +1050,40 @@ int ath11k_peer_rx_tid_setup(struct ath11k *ar, const u8 *peer_mac, int vdev_id,
else
hw_desc_sz = ath11k_hal_reo_qdesc_size(DP_BA_WIN_SZ_MAX, tid);

- vaddr = kzalloc(hw_desc_sz + HAL_LINK_DESC_ALIGN - 1, GFP_ATOMIC);
- if (!vaddr) {
+ rx_tid->unaligned_size = hw_desc_sz + HAL_LINK_DESC_ALIGN - 1;
+ vaddr_unaligned = dma_alloc_noncoherent(ab->dev, rx_tid->unaligned_size, &paddr,
+ DMA_BIDIRECTIONAL, GFP_ATOMIC);
+ if (!vaddr_unaligned) {
spin_unlock_bh(&ab->base_lock);
return -ENOMEM;
}

- addr_aligned = PTR_ALIGN(vaddr, HAL_LINK_DESC_ALIGN);
-
- ath11k_hal_reo_qdesc_setup(addr_aligned, tid, ba_win_sz,
- ssn, pn_type);
-
- paddr = dma_map_single(ab->dev, addr_aligned, hw_desc_sz,
- DMA_BIDIRECTIONAL);
-
- ret = dma_mapping_error(ab->dev, paddr);
- if (ret) {
- spin_unlock_bh(&ab->base_lock);
- ath11k_warn(ab, "failed to setup dma map for peer %pM rx tid %d: %d\n",
- peer_mac, tid, ret);
- goto err_mem_free;
- }
-
- rx_tid->vaddr = vaddr;
- rx_tid->paddr = paddr;
+ rx_tid->vaddr_unaligned = vaddr_unaligned;
+ vaddr = PTR_ALIGN(vaddr_unaligned, HAL_LINK_DESC_ALIGN);
+ rx_tid->paddr_unaligned = paddr;
+ rx_tid->paddr = rx_tid->paddr_unaligned + ((unsigned long)vaddr -
+ (unsigned long)rx_tid->vaddr_unaligned);
+ ath11k_hal_reo_qdesc_setup(vaddr, tid, ba_win_sz, ssn, pn_type);
rx_tid->size = hw_desc_sz;
rx_tid->active = true;

+ /* After dma_alloc_noncoherent, vaddr is being modified for reo qdesc setup.
+ * Since these changes are not reflected in the device, driver now needs to
+ * explicitly call dma_sync_single_for_device.
+ */
+ dma_sync_single_for_device(ab->dev, rx_tid->paddr,
+ rx_tid->size,
+ DMA_TO_DEVICE);
spin_unlock_bh(&ab->base_lock);

- ret = ath11k_wmi_peer_rx_reorder_queue_setup(ar, vdev_id, peer_mac,
- paddr, tid, 1, ba_win_sz);
+ ret = ath11k_wmi_peer_rx_reorder_queue_setup(ar, vdev_id, peer_mac, rx_tid->paddr,
+ tid, 1, ba_win_sz);
if (ret) {
ath11k_warn(ar->ab, "failed to setup rx reorder queue for peer %pM tid %d: %d\n",
peer_mac, tid, ret);
ath11k_dp_rx_tid_mem_free(ab, peer_mac, vdev_id, tid);
}

- return ret;
-
-err_mem_free:
- kfree(rx_tid->vaddr);
- rx_tid->vaddr = NULL;
-
return ret;
}

@@ -1119,9 +1110,8 @@ int ath11k_dp_rx_ampdu_stop(struct ath11k *ar,
struct ath11k_base *ab = ar->ab;
struct ath11k_peer *peer;
struct ath11k_sta *arsta = ath11k_sta_to_arsta(params->sta);
+ struct dp_rx_tid *rx_tid;
int vdev_id = arsta->arvif->vdev_id;
- dma_addr_t paddr;
- bool active;
int ret;

spin_lock_bh(&ab->base_lock);
@@ -1133,15 +1123,14 @@ int ath11k_dp_rx_ampdu_stop(struct ath11k *ar,
return -ENOENT;
}

- paddr = peer->rx_tid[params->tid].paddr;
- active = peer->rx_tid[params->tid].active;
+ rx_tid = &peer->rx_tid[params->tid];

- if (!active) {
+ if (!rx_tid->active) {
spin_unlock_bh(&ab->base_lock);
return 0;
}

- ret = ath11k_peer_rx_tid_reo_update(ar, peer, peer->rx_tid, 1, 0, false);
+ ret = ath11k_peer_rx_tid_reo_update(ar, peer, rx_tid, 1, 0, false);
spin_unlock_bh(&ab->base_lock);
if (ret) {
ath11k_warn(ab, "failed to update reo for rx tid %d: %d\n",
@@ -1150,7 +1139,8 @@ int ath11k_dp_rx_ampdu_stop(struct ath11k *ar,
}

ret = ath11k_wmi_peer_rx_reorder_queue_setup(ar, vdev_id,
- params->sta->addr, paddr,
+ params->sta->addr,
+ rx_tid->paddr,
params->tid, 1, 1);
if (ret)
ath11k_warn(ab, "failed to send wmi to delete rx tid %d\n",
@@ -2996,11 +2986,52 @@ ath11k_dp_rx_mon_update_status_buf_state(struct ath11k_mon_data *pmon,
}
}

+static enum dp_mon_status_buf_state
+ath11k_dp_rx_mon_buf_done(struct ath11k_base *ab, struct hal_srng *srng,
+ struct dp_rxdma_ring *rx_ring)
+{
+ struct ath11k_skb_rxcb *rxcb;
+ struct hal_tlv_hdr *tlv;
+ struct sk_buff *skb;
+ void *status_desc;
+ dma_addr_t paddr;
+ u32 cookie;
+ int buf_id;
+ u8 rbm;
+
+ status_desc = ath11k_hal_srng_src_next_peek(ab, srng);
+ if (!status_desc)
+ return DP_MON_STATUS_NO_DMA;
+
+ ath11k_hal_rx_buf_addr_info_get(status_desc, &paddr, &cookie, &rbm);
+
+ buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, cookie);
+
+ spin_lock_bh(&rx_ring->idr_lock);
+ skb = idr_find(&rx_ring->bufs_idr, buf_id);
+ spin_unlock_bh(&rx_ring->idr_lock);
+
+ if (!skb)
+ return DP_MON_STATUS_NO_DMA;
+
+ rxcb = ATH11K_SKB_RXCB(skb);
+ dma_sync_single_for_cpu(ab->dev, rxcb->paddr,
+ skb->len + skb_tailroom(skb),
+ DMA_FROM_DEVICE);
+
+ tlv = (struct hal_tlv_hdr *)skb->data;
+ if (FIELD_GET(HAL_TLV_HDR_TAG, tlv->tl) != HAL_RX_STATUS_BUFFER_DONE)
+ return DP_MON_STATUS_NO_DMA;
+
+ return DP_MON_STATUS_REPLINISH;
+}
+
static int ath11k_dp_rx_reap_mon_status_ring(struct ath11k_base *ab, int mac_id,
int *budget, struct sk_buff_head *skb_list)
{
struct ath11k *ar;
const struct ath11k_hw_hal_params *hal_params;
+ enum dp_mon_status_buf_state reap_status;
struct ath11k_pdev_dp *dp;
struct dp_rxdma_ring *rx_ring;
struct ath11k_mon_data *pmon;
@@ -3063,15 +3094,38 @@ static int ath11k_dp_rx_reap_mon_status_ring(struct ath11k_base *ab, int mac_id,
ath11k_warn(ab, "mon status DONE not set %lx, buf_id %d\n",
FIELD_GET(HAL_TLV_HDR_TAG,
tlv->tl), buf_id);
- /* If done status is missing, hold onto status
- * ring until status is done for this status
- * ring buffer.
- * Keep HP in mon_status_ring unchanged,
- * and break from here.
- * Check status for same buffer for next time
+ /* RxDMA status done bit might not be set even
+ * though tp is moved by HW.
*/
- pmon->buf_state = DP_MON_STATUS_NO_DMA;
- break;
+
+ /* If done status is missing:
+ * 1. As per MAC team's suggestion,
+ * when HP + 1 entry is peeked and if DMA
+ * is not done and if HP + 2 entry's DMA done
+ * is set. skip HP + 1 entry and
+ * start processing in next interrupt.
+ * 2. If HP + 2 entry's DMA done is not set,
+ * poll onto HP + 1 entry DMA done to be set.
+ * Check status for same buffer for next time
+ * dp_rx_mon_status_srng_process
+ */
+
+ reap_status = ath11k_dp_rx_mon_buf_done(ab, srng,
+ rx_ring);
+ if (reap_status == DP_MON_STATUS_NO_DMA)
+ continue;
+
+ spin_lock_bh(&rx_ring->idr_lock);
+ idr_remove(&rx_ring->bufs_idr, buf_id);
+ spin_unlock_bh(&rx_ring->idr_lock);
+
+ dma_unmap_single(ab->dev, rxcb->paddr,
+ skb->len + skb_tailroom(skb),
+ DMA_FROM_DEVICE);
+
+ dev_kfree_skb_any(skb);
+ pmon->buf_state = DP_MON_STATUS_REPLINISH;
+ goto move_next;
}

spin_lock_bh(&rx_ring->idr_lock);
diff --git a/drivers/net/wireless/ath/ath11k/hal.c b/drivers/net/wireless/ath/ath11k/hal.c
index 79cf65bc2e17..b42925f84200 100644
--- a/drivers/net/wireless/ath/ath11k/hal.c
+++ b/drivers/net/wireless/ath/ath11k/hal.c
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/dma-mapping.h>
#include "hal_tx.h"
@@ -783,6 +783,20 @@ u32 *ath11k_hal_srng_src_get_next_reaped(struct ath11k_base *ab,
return desc;
}

+u32 *ath11k_hal_srng_src_next_peek(struct ath11k_base *ab, struct hal_srng *srng)
+{
+ u32 next_hp;
+
+ lockdep_assert_held(&srng->lock);
+
+ next_hp = (srng->u.src_ring.hp + srng->entry_size) % srng->ring_size;
+
+ if (next_hp != srng->u.src_ring.cached_tp)
+ return srng->ring_base_vaddr + next_hp;
+
+ return NULL;
+}
+
u32 *ath11k_hal_srng_src_peek(struct ath11k_base *ab, struct hal_srng *srng)
{
lockdep_assert_held(&srng->lock);
diff --git a/drivers/net/wireless/ath/ath11k/hal.h b/drivers/net/wireless/ath/ath11k/hal.h
index aa21eb1fdce1..494c2b8a1281 100644
--- a/drivers/net/wireless/ath/ath11k/hal.h
+++ b/drivers/net/wireless/ath/ath11k/hal.h
@@ -946,6 +946,8 @@ u32 *ath11k_hal_srng_dst_peek(struct ath11k_base *ab, struct hal_srng *srng);
int ath11k_hal_srng_dst_num_free(struct ath11k_base *ab, struct hal_srng *srng,
bool sync_hw_ptr);
u32 *ath11k_hal_srng_src_peek(struct ath11k_base *ab, struct hal_srng *srng);
+u32 *ath11k_hal_srng_src_next_peek(struct ath11k_base *ab,
+ struct hal_srng *srng);
u32 *ath11k_hal_srng_src_get_next_reaped(struct ath11k_base *ab,
struct hal_srng *srng);
u32 *ath11k_hal_srng_src_reap_next(struct ath11k_base *ab,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 6c108dbbbc54..ac304e21a367 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -2863,7 +2863,7 @@ static void iwl_mvm_nd_match_info_handler(struct iwl_mvm *mvm,
if (IS_ERR_OR_NULL(vif))
return;

- if (len < sizeof(struct iwl_scan_offload_match_info)) {
+ if (len < sizeof(struct iwl_scan_offload_match_info) + matches_len) {
IWL_ERR(mvm, "Invalid scan match info notification\n");
return;
}
diff --git a/drivers/net/wireless/microchip/wilc1000/hif.c b/drivers/net/wireless/microchip/wilc1000/hif.c
index 25e881ee727c..91122e7be413 100644
--- a/drivers/net/wireless/microchip/wilc1000/hif.c
+++ b/drivers/net/wireless/microchip/wilc1000/hif.c
@@ -162,7 +162,7 @@ int wilc_scan(struct wilc_vif *vif, u8 scan_source, u8 scan_type,
u32 index = 0;
u32 i, scan_timeout;
u8 *buffer;
- u8 valuesize = 0;
+ u32 valuesize = 0;
u8 *search_ssid_vals = NULL;
struct host_if_drv *hif_drv = vif->hif_drv;

diff --git a/drivers/net/wireless/virtual/virt_wifi.c b/drivers/net/wireless/virtual/virt_wifi.c
index 2977b30c6d59..55b2d44e4315 100644
--- a/drivers/net/wireless/virtual/virt_wifi.c
+++ b/drivers/net/wireless/virtual/virt_wifi.c
@@ -555,7 +555,6 @@ static int virt_wifi_newlink(struct net *src_net, struct net_device *dev,
eth_hw_addr_inherit(dev, priv->lowerdev);
netif_stacked_transfer_operstate(priv->lowerdev, dev);

- SET_NETDEV_DEV(dev, &priv->lowerdev->dev);
dev->ieee80211_ptr = kzalloc(sizeof(*dev->ieee80211_ptr), GFP_KERNEL);

if (!dev->ieee80211_ptr) {
diff --git a/drivers/nfc/pn533/uart.c b/drivers/nfc/pn533/uart.c
index a556acdb947b..f4afd1156e06 100644
--- a/drivers/nfc/pn533/uart.c
+++ b/drivers/nfc/pn533/uart.c
@@ -211,6 +211,9 @@ static int pn532_receive_buf(struct serdev_device *serdev,

del_timer(&dev->cmd_timeout);
for (i = 0; i < count; i++) {
+ if (unlikely(!skb_tailroom(dev->recv_skb)))
+ skb_trim(dev->recv_skb, 0);
+
skb_put_u8(dev->recv_skb, *data++);
if (!pn532_uart_rx_is_frame(dev->recv_skb))
continue;
diff --git a/drivers/nvmem/imx-ocotp-ele.c b/drivers/nvmem/imx-ocotp-ele.c
index 66e468af0f2f..3be93400e818 100644
--- a/drivers/nvmem/imx-ocotp-ele.c
+++ b/drivers/nvmem/imx-ocotp-ele.c
@@ -127,6 +127,7 @@ static int imx_ocotp_cell_pp(void *context, const char *id, int index,
static void imx_ocotp_fixup_dt_cell_info(struct nvmem_device *nvmem,
struct nvmem_cell_info *cell)
{
+ cell->raw_len = round_up(cell->bytes, 4);
cell->read_post_process = imx_ocotp_cell_pp;
}

diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c
index 7bf7656d4f96..108d78d7f6cb 100644
--- a/drivers/nvmem/imx-ocotp.c
+++ b/drivers/nvmem/imx-ocotp.c
@@ -589,6 +589,7 @@ MODULE_DEVICE_TABLE(of, imx_ocotp_dt_ids);
static void imx_ocotp_fixup_dt_cell_info(struct nvmem_device *nvmem,
struct nvmem_cell_info *cell)
{
+ cell->raw_len = round_up(cell->bytes, 4);
cell->read_post_process = imx_ocotp_cell_pp;
}

diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c
index 37a20652fd2e..ef1a05837cb9 100644
--- a/drivers/spi/spi-geni-qcom.c
+++ b/drivers/spi/spi-geni-qcom.c
@@ -948,10 +948,13 @@ static irqreturn_t geni_spi_isr(int irq, void *data)
struct spi_master *spi = data;
struct spi_geni_master *mas = spi_master_get_devdata(spi);
struct geni_se *se = &mas->se;
- u32 m_irq;
+ u32 m_irq, dma_tx_status, dma_rx_status;

m_irq = readl(se->base + SE_GENI_M_IRQ_STATUS);
- if (!m_irq)
+ dma_tx_status = readl_relaxed(se->base + SE_DMA_TX_IRQ_STAT);
+ dma_rx_status = readl_relaxed(se->base + SE_DMA_RX_IRQ_STAT);
+
+ if (!m_irq && !dma_tx_status && !dma_rx_status)
return IRQ_NONE;

if (m_irq & (M_CMD_OVERRUN_EN | M_ILLEGAL_CMD_EN | M_CMD_FAILURE_EN |
@@ -999,8 +1002,6 @@ static irqreturn_t geni_spi_isr(int irq, void *data)
}
} else if (mas->cur_xfer_mode == GENI_SE_DMA) {
const struct spi_transfer *xfer = mas->cur_xfer;
- u32 dma_tx_status = readl_relaxed(se->base + SE_DMA_TX_IRQ_STAT);
- u32 dma_rx_status = readl_relaxed(se->base + SE_DMA_RX_IRQ_STAT);

if (dma_tx_status)
writel(dma_tx_status, se->base + SE_DMA_TX_IRQ_CLR);
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index db13c6a379d8..72d374c94ce2 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -26,6 +26,7 @@
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/configfs.h>
+#include <linux/blk-mq.h>
#include <scsi/scsi.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_host.h>
@@ -267,15 +268,27 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
return (ret == TMR_FUNCTION_COMPLETE) ? SUCCESS : FAILED;
}

+static bool tcm_loop_flush_work_iter(struct request *rq, void *data)
+{
+ struct scsi_cmnd *sc = blk_mq_rq_to_pdu(rq);
+ struct tcm_loop_cmd *tl_cmd = scsi_cmd_priv(sc);
+ struct se_cmd *se_cmd = &tl_cmd->tl_se_cmd;
+
+ flush_work(&se_cmd->work);
+ return true;
+}
+
static int tcm_loop_target_reset(struct scsi_cmnd *sc)
{
struct tcm_loop_hba *tl_hba;
struct tcm_loop_tpg *tl_tpg;
+ struct Scsi_Host *sh = sc->device->host;
+ int ret;

/*
* Locate the tcm_loop_hba_t pointer
*/
- tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);
+ tl_hba = *(struct tcm_loop_hba **)shost_priv(sh);
if (!tl_hba) {
pr_err("Unable to perform device reset without active I_T Nexus\n");
return FAILED;
@@ -284,11 +297,38 @@ static int tcm_loop_target_reset(struct scsi_cmnd *sc)
* Locate the tl_tpg pointer from TargetID in sc->device->id
*/
tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
- if (tl_tpg) {
- tl_tpg->tl_transport_status = TCM_TRANSPORT_ONLINE;
- return SUCCESS;
- }
- return FAILED;
+ if (!tl_tpg)
+ return FAILED;
+
+ /*
+ * Issue a LUN_RESET to drain all commands that the target core
+ * knows about. This handles commands not yet marked CMD_T_COMPLETE.
+ */
+ ret = tcm_loop_issue_tmr(tl_tpg, sc->device->lun, 0, TMR_LUN_RESET);
+ if (ret != TMR_FUNCTION_COMPLETE)
+ return FAILED;
+
+ /*
+ * Flush any deferred target core completion work that may still be
+ * queued. Commands that already had CMD_T_COMPLETE set before the TMR
+ * are skipped by the TMR drain, but their async completion work
+ * (transport_lun_remove_cmd → percpu_ref_put, release_cmd → scsi_done)
+ * may still be pending in target_completion_wq.
+ *
+ * The SCSI EH will reuse in-flight scsi_cmnd structures for recovery
+ * commands (e.g. TUR) immediately after this handler returns SUCCESS —
+ * if deferred work is still pending, the memset in queuecommand would
+ * zero the se_cmd while the work accesses it, leaking the LUN
+ * percpu_ref and hanging configfs unlink forever.
+ *
+ * Use blk_mq_tagset_busy_iter() to find all started requests and
+ * flush_work() on each — the same pattern used by mpi3mr, scsi_debug,
+ * and other SCSI drivers to drain outstanding commands during reset.
+ */
+ blk_mq_tagset_busy_iter(&sh->tag_set, tcm_loop_flush_work_iter, NULL);
+
+ tl_tpg->tl_transport_status = TCM_TRANSPORT_ONLINE;
+ return SUCCESS;
}

static const struct scsi_host_template tcm_loop_driver_template = {
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index dad909547179..660a8d6f3567 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1394,6 +1394,7 @@ thermal_zone_device_register_with_trips(const char *type, struct thermal_trip *t
device_del(&tz->device);
release_device:
put_device(&tz->device);
+ wait_for_completion(&tz->removal);
remove_id:
ida_free(&thermal_tz_ida, id);
free_tzp:
diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index d13063e69571..3c879a0d92f9 100644
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -1010,7 +1010,7 @@ static bool nhi_wake_supported(struct pci_dev *pdev)
* If power rails are sustainable for wakeup from S4 this
* property is set by the BIOS.
*/
- if (device_property_read_u8(&pdev->dev, "WAKE_SUPPORTED", &val))
+ if (!device_property_read_u8(&pdev->dev, "WAKE_SUPPORTED", &val))
return !!val;

return true;
diff --git a/drivers/usb/cdns3/cdns3-gadget.c b/drivers/usb/cdns3/cdns3-gadget.c
index 05e8414c31df..f0447f2231a8 100644
--- a/drivers/usb/cdns3/cdns3-gadget.c
+++ b/drivers/usb/cdns3/cdns3-gadget.c
@@ -2588,6 +2588,9 @@ static int __cdns3_gadget_ep_queue(struct usb_ep *ep,
struct cdns3_request *priv_req;
int ret = 0;

+ if (!ep->desc)
+ return -ESHUTDOWN;
+
request->actual = 0;
request->status = -EINPROGRESS;
priv_req = to_cdns3_request(request);
@@ -3428,6 +3431,7 @@ static int __cdns3_gadget_init(struct cdns *cdns)
ret = cdns3_gadget_start(cdns);
if (ret) {
pm_runtime_put_sync(cdns->dev);
+ cdns_drd_gadget_off(cdns);
return ret;
}

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index e005c506dd0a..9b9eb4568ad2 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1225,6 +1225,12 @@ static int acm_probe(struct usb_interface *intf,
if (!data_interface || !control_interface)
return -ENODEV;
goto skip_normal_probe;
+ } else if (quirks == NO_UNION_12) {
+ data_interface = usb_ifnum_to_if(usb_dev, 2);
+ control_interface = usb_ifnum_to_if(usb_dev, 1);
+ if (!data_interface || !control_interface)
+ return -ENODEV;
+ goto skip_normal_probe;
}

/* normal probing*/
@@ -1748,6 +1754,9 @@ static const struct usb_device_id acm_ids[] = {
{ USB_DEVICE(0x045b, 0x024D), /* Renesas R-Car E3 USB Download mode */
.driver_info = DISABLE_ECHO, /* Don't echo banner */
},
+ { USB_DEVICE(0x04b8, 0x0d12), /* EPSON HMD Com&Sens */
+ .driver_info = NO_UNION_12, /* union descriptor is garbage */
+ },
{ USB_DEVICE(0x0e8d, 0x0003), /* FIREFLY, MediaTek Inc; andrey.arapov@gmail.com */
.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
},
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index 76f73853a60b..25fd5329a878 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -114,3 +114,4 @@ struct acm {
#define SEND_ZERO_PACKET BIT(6)
#define DISABLE_ECHO BIT(7)
#define MISSING_CAP_BRK BIT(8)
+#define NO_UNION_12 BIT(9)
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 8cf341a24834..bf8690bb654f 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -254,6 +254,9 @@ static int usbtmc_release(struct inode *inode, struct file *file)
list_del(&file_data->file_elem);

spin_unlock_irq(&file_data->data->dev_lock);
+
+ /* flush anchored URBs */
+ usbtmc_draw_down(file_data);
mutex_unlock(&file_data->data->io_mutex);

kref_put(&file_data->data->kref, usbtmc_delete);
diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c
index 0886b19d2e1c..c9f52cd1cfb2 100644
--- a/drivers/usb/common/ulpi.c
+++ b/drivers/usb/common/ulpi.c
@@ -331,10 +331,9 @@ struct ulpi *ulpi_register_interface(struct device *dev,
ulpi->ops = ops;

ret = ulpi_register(dev, ulpi);
- if (ret) {
- kfree(ulpi);
+ if (ret)
return ERR_PTR(ret);
- }
+

return ulpi;
}
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 53b08d6cf782..7442ac03f5ff 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -402,6 +402,7 @@ static const struct usb_device_id usb_quirk_list[] = {

/* Silicon Motion Flash Drive */
{ USB_DEVICE(0x090c, 0x1000), .driver_info = USB_QUIRK_DELAY_INIT },
+ { USB_DEVICE(0x090c, 0x2000), .driver_info = USB_QUIRK_DELAY_INIT },

/* Sound Devices USBPre2 */
{ USB_DEVICE(0x0926, 0x0202), .driver_info =
@@ -490,6 +491,8 @@ static const struct usb_device_id usb_quirk_list[] = {
/* Razer - Razer Blade Keyboard */
{ USB_DEVICE(0x1532, 0x0116), .driver_info =
USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
+ /* Razer - Razer Kiyo Pro Webcam */
+ { USB_DEVICE(0x1532, 0x0e05), .driver_info = USB_QUIRK_NO_LPM },

/* Lenovo ThinkPad OneLink+ Dock twin hub controllers (VIA Labs VL812) */
{ USB_DEVICE(0x17ef, 0x1018), .driver_info = USB_QUIRK_RESET_RESUME },
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index c0db3c52831a..c4a06eeb61fe 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -4604,7 +4604,9 @@ static int dwc2_hsotg_udc_stop(struct usb_gadget *gadget)
/* Exit clock gating when driver is stopped. */
if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_NONE &&
hsotg->bus_suspended && !hsotg->params.no_clock_gating) {
+ spin_lock_irqsave(&hsotg->lock, flags);
dwc2_gadget_exit_clock_gating(hsotg, 0);
+ spin_unlock_irqrestore(&hsotg->lock, flags);
}

/* all endpoints should be shutdown */
diff --git a/drivers/usb/gadget/function/f_rndis.c b/drivers/usb/gadget/function/f_rndis.c
index ef7e734511ab..c11728644273 100644
--- a/drivers/usb/gadget/function/f_rndis.c
+++ b/drivers/usb/gadget/function/f_rndis.c
@@ -11,6 +11,7 @@

/* #define VERBOSE_DEBUG */

+#include <linux/cleanup.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -678,9 +679,11 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f)
return -ENOMEM;
}

- rndis_iad_descriptor.bFunctionClass = rndis_opts->class;
- rndis_iad_descriptor.bFunctionSubClass = rndis_opts->subclass;
- rndis_iad_descriptor.bFunctionProtocol = rndis_opts->protocol;
+ scoped_guard(mutex, &rndis_opts->lock) {
+ rndis_iad_descriptor.bFunctionClass = rndis_opts->class;
+ rndis_iad_descriptor.bFunctionSubClass = rndis_opts->subclass;
+ rndis_iad_descriptor.bFunctionProtocol = rndis_opts->protocol;
+ }

/*
* in drivers/usb/gadget/configfs.c:configfs_composite_bind()
diff --git a/drivers/usb/gadget/function/f_subset.c b/drivers/usb/gadget/function/f_subset.c
index 8ae9689ef2a0..7d209382c068 100644
--- a/drivers/usb/gadget/function/f_subset.c
+++ b/drivers/usb/gadget/function/f_subset.c
@@ -6,6 +6,7 @@
* Copyright (C) 2008 Nokia Corporation
*/

+#include <linux/cleanup.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -449,8 +450,13 @@ static struct usb_function_instance *geth_alloc_inst(void)
static void geth_free(struct usb_function *f)
{
struct f_gether *eth;
+ struct f_gether_opts *opts;
+
+ opts = container_of(f->fi, struct f_gether_opts, func_inst);

eth = func_to_geth(f);
+ scoped_guard(mutex, &opts->lock)
+ opts->refcnt--;
kfree(eth);
}

diff --git a/drivers/usb/gadget/function/f_uac1_legacy.c b/drivers/usb/gadget/function/f_uac1_legacy.c
index e2d7f69128a0..f8ed471ab9a8 100644
--- a/drivers/usb/gadget/function/f_uac1_legacy.c
+++ b/drivers/usb/gadget/function/f_uac1_legacy.c
@@ -360,19 +360,46 @@ static int f_audio_out_ep_complete(struct usb_ep *ep, struct usb_request *req)
static void f_audio_complete(struct usb_ep *ep, struct usb_request *req)
{
struct f_audio *audio = req->context;
- int status = req->status;
- u32 data = 0;
struct usb_ep *out_ep = audio->out_ep;

- switch (status) {
-
- case 0: /* normal completion? */
- if (ep == out_ep)
+ switch (req->status) {
+ case 0:
+ if (ep == out_ep) {
f_audio_out_ep_complete(ep, req);
- else if (audio->set_con) {
- memcpy(&data, req->buf, req->length);
- audio->set_con->set(audio->set_con, audio->set_cmd,
- le16_to_cpu(data));
+ } else if (audio->set_con) {
+ struct usb_audio_control *con = audio->set_con;
+ u8 type = con->type;
+ u32 data;
+ bool valid_request = false;
+
+ switch (type) {
+ case UAC_FU_MUTE: {
+ u8 value;
+
+ if (req->actual == sizeof(value)) {
+ memcpy(&value, req->buf, sizeof(value));
+ data = value;
+ valid_request = true;
+ }
+ break;
+ }
+ case UAC_FU_VOLUME: {
+ __le16 value;
+
+ if (req->actual == sizeof(value)) {
+ memcpy(&value, req->buf, sizeof(value));
+ data = le16_to_cpu(value);
+ valid_request = true;
+ }
+ break;
+ }
+ }
+
+ if (valid_request)
+ con->set(con, audio->set_cmd, data);
+ else
+ usb_ep_set_halt(ep);
+
audio->set_con = NULL;
}
break;
diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c
index 2e6bafb2a554..37c33cab208a 100644
--- a/drivers/usb/gadget/function/f_uvc.c
+++ b/drivers/usb/gadget/function/f_uvc.c
@@ -410,6 +410,12 @@ uvc_function_disconnect(struct uvc_device *uvc)
{
int ret;

+ guard(mutex)(&uvc->lock);
+ if (uvc->func_unbound) {
+ dev_dbg(&uvc->vdev.dev, "skipping function deactivate (unbound)\n");
+ return;
+ }
+
if ((ret = usb_function_deactivate(&uvc->func)) < 0)
uvcg_info(&uvc->func, "UVC disconnect failed with %d\n", ret);
}
@@ -428,6 +434,15 @@ static ssize_t function_name_show(struct device *dev,

static DEVICE_ATTR_RO(function_name);

+static void uvc_vdev_release(struct video_device *vdev)
+{
+ struct uvc_device *uvc = video_get_drvdata(vdev);
+
+ /* Signal uvc_function_unbind() that the video device has been released */
+ if (uvc->vdev_release_done)
+ complete(uvc->vdev_release_done);
+}
+
static int
uvc_register_video(struct uvc_device *uvc)
{
@@ -440,7 +455,7 @@ uvc_register_video(struct uvc_device *uvc)
uvc->vdev.v4l2_dev->dev = &cdev->gadget->dev;
uvc->vdev.fops = &uvc_v4l2_fops;
uvc->vdev.ioctl_ops = &uvc_v4l2_ioctl_ops;
- uvc->vdev.release = video_device_release_empty;
+ uvc->vdev.release = uvc_vdev_release;
uvc->vdev.vfl_dir = VFL_DIR_TX;
uvc->vdev.lock = &uvc->video.mutex;
uvc->vdev.device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
@@ -653,6 +668,8 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
int ret = -EINVAL;

uvcg_info(f, "%s()\n", __func__);
+ scoped_guard(mutex, &uvc->lock)
+ uvc->func_unbound = false;

opts = fi_to_f_uvc_opts(f->fi);
/* Sanity check the streaming endpoint module parameters. */
@@ -975,12 +992,19 @@ static void uvc_free(struct usb_function *f)
static void uvc_function_unbind(struct usb_configuration *c,
struct usb_function *f)
{
+ DECLARE_COMPLETION_ONSTACK(vdev_release_done);
struct usb_composite_dev *cdev = c->cdev;
struct uvc_device *uvc = to_uvc(f);
struct uvc_video *video = &uvc->video;
long wait_ret = 1;
+ bool connected;

uvcg_info(f, "%s()\n", __func__);
+ scoped_guard(mutex, &uvc->lock) {
+ uvc->func_unbound = true;
+ uvc->vdev_release_done = &vdev_release_done;
+ connected = uvc->func_connected;
+ }

if (video->async_wq)
destroy_workqueue(video->async_wq);
@@ -991,7 +1015,7 @@ static void uvc_function_unbind(struct usb_configuration *c,
* though the video device removal uevent. Allow some time for the
* application to close out before things get deleted.
*/
- if (uvc->func_connected) {
+ if (connected) {
uvcg_dbg(f, "waiting for clean disconnect\n");
wait_ret = wait_event_interruptible_timeout(uvc->func_connected_queue,
uvc->func_connected == false, msecs_to_jiffies(500));
@@ -1002,7 +1026,10 @@ static void uvc_function_unbind(struct usb_configuration *c,
video_unregister_device(&uvc->vdev);
v4l2_device_unregister(&uvc->v4l2_dev);

- if (uvc->func_connected) {
+ scoped_guard(mutex, &uvc->lock)
+ connected = uvc->func_connected;
+
+ if (connected) {
/*
* Wait for the release to occur to ensure there are no longer any
* pending operations that may cause panics when resources are cleaned
@@ -1014,6 +1041,10 @@ static void uvc_function_unbind(struct usb_configuration *c,
uvcg_dbg(f, "done waiting for release with ret: %ld\n", wait_ret);
}

+ /* Wait for the video device to be released */
+ wait_for_completion(&vdev_release_done);
+ uvc->vdev_release_done = NULL;
+
usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);
kfree(uvc->control_buf);

@@ -1032,6 +1063,8 @@ static struct usb_function *uvc_alloc(struct usb_function_instance *fi)
return ERR_PTR(-ENOMEM);

mutex_init(&uvc->video.mutex);
+ mutex_init(&uvc->lock);
+ uvc->func_unbound = true;
uvc->state = UVC_STATE_DISCONNECTED;
init_waitqueue_head(&uvc->func_connected_queue);
opts = fi_to_f_uvc_opts(fi);
diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c
index 2da2db5e15a3..62e2018d0357 100644
--- a/drivers/usb/gadget/function/u_ether.c
+++ b/drivers/usb/gadget/function/u_ether.c
@@ -1200,6 +1200,11 @@ void gether_disconnect(struct gether *link)

DBG(dev, "%s\n", __func__);

+ spin_lock(&dev->lock);
+ dev->port_usb = NULL;
+ link->is_suspend = false;
+ spin_unlock(&dev->lock);
+
netif_stop_queue(dev->net);
netif_carrier_off(dev->net);

@@ -1237,11 +1242,6 @@ void gether_disconnect(struct gether *link)
dev->header_len = 0;
dev->unwrap = NULL;
dev->wrap = NULL;
-
- spin_lock(&dev->lock);
- dev->port_usb = NULL;
- link->is_suspend = false;
- spin_unlock(&dev->lock);
}
EXPORT_SYMBOL_GPL(gether_disconnect);

diff --git a/drivers/usb/gadget/function/uvc.h b/drivers/usb/gadget/function/uvc.h
index 6751de8b63ad..595b07c923c1 100644
--- a/drivers/usb/gadget/function/uvc.h
+++ b/drivers/usb/gadget/function/uvc.h
@@ -131,6 +131,9 @@ struct uvc_device {
enum uvc_state state;
struct usb_function func;
struct uvc_video video;
+ struct completion *vdev_release_done;
+ struct mutex lock; /* protects func_unbound and func_connected */
+ bool func_unbound;
bool func_connected;
wait_queue_head_t func_connected_queue;

diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c
index 0195625bef53..eda0cd6ad66e 100644
--- a/drivers/usb/gadget/function/uvc_v4l2.c
+++ b/drivers/usb/gadget/function/uvc_v4l2.c
@@ -491,6 +491,8 @@ uvc_v4l2_subscribe_event(struct v4l2_fh *fh,
if (sub->type < UVC_EVENT_FIRST || sub->type > UVC_EVENT_LAST)
return -EINVAL;

+ guard(mutex)(&uvc->lock);
+
if (sub->type == UVC_EVENT_SETUP && uvc->func_connected)
return -EBUSY;

@@ -512,7 +514,8 @@ static void uvc_v4l2_disable(struct uvc_device *uvc)
uvc_function_disconnect(uvc);
uvcg_video_enable(&uvc->video, 0);
uvcg_free_buffers(&uvc->video.queue);
- uvc->func_connected = false;
+ scoped_guard(mutex, &uvc->lock)
+ uvc->func_connected = false;
wake_up_interruptible(&uvc->func_connected_queue);
}

diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index a06f56c08e19..543c4977aaa4 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -461,8 +461,13 @@ static void set_link_state(struct dummy_hcd *dum_hcd)

/* Report reset and disconnect events to the driver */
if (dum->ints_enabled && (disconnect || reset)) {
- stop_activity(dum);
++dum->callback_usage;
+ /*
+ * stop_activity() can drop dum->lock, so it must
+ * not come between the dum->ints_enabled test
+ * and the ++dum->callback_usage.
+ */
+ stop_activity(dum);
spin_unlock(&dum->lock);
if (reset)
usb_gadget_udc_reset(&dum->gadget, dum->driver);
@@ -907,21 +912,6 @@ static int dummy_pullup(struct usb_gadget *_gadget, int value)
spin_lock_irqsave(&dum->lock, flags);
dum->pullup = (value != 0);
set_link_state(dum_hcd);
- if (value == 0) {
- /*
- * Emulate synchronize_irq(): wait for callbacks to finish.
- * This seems to be the best place to emulate the call to
- * synchronize_irq() that's in usb_gadget_remove_driver().
- * Doing it in dummy_udc_stop() would be too late since it
- * is called after the unbind callback and unbind shouldn't
- * be invoked until all the other callbacks are finished.
- */
- while (dum->callback_usage > 0) {
- spin_unlock_irqrestore(&dum->lock, flags);
- usleep_range(1000, 2000);
- spin_lock_irqsave(&dum->lock, flags);
- }
- }
spin_unlock_irqrestore(&dum->lock, flags);

usb_hcd_poll_rh_status(dummy_hcd_to_hcd(dum_hcd));
@@ -944,6 +934,20 @@ static void dummy_udc_async_callbacks(struct usb_gadget *_gadget, bool enable)

spin_lock_irq(&dum->lock);
dum->ints_enabled = enable;
+ if (!enable) {
+ /*
+ * Emulate synchronize_irq(): wait for callbacks to finish.
+ * This has to happen after emulated interrupts are disabled
+ * (dum->ints_enabled is clear) and before the unbind callback,
+ * just like the call to synchronize_irq() in
+ * gadget/udc/core:gadget_unbind_driver().
+ */
+ while (dum->callback_usage > 0) {
+ spin_unlock_irq(&dum->lock);
+ usleep_range(1000, 2000);
+ spin_lock_irq(&dum->lock);
+ }
+ }
spin_unlock_irq(&dum->lock);
}

@@ -1533,6 +1537,12 @@ static int transfer(struct dummy_hcd *dum_hcd, struct urb *urb,
/* rescan to continue with any other queued i/o */
if (rescan)
goto top;
+
+ /* request not fully transferred; stop iterating to
+ * preserve data ordering across queued requests.
+ */
+ if (req->req.actual < req->req.length)
+ break;
}
return sent;
}
diff --git a/drivers/usb/host/ehci-brcm.c b/drivers/usb/host/ehci-brcm.c
index 77e42c739c58..fc0b61bfb0df 100644
--- a/drivers/usb/host/ehci-brcm.c
+++ b/drivers/usb/host/ehci-brcm.c
@@ -31,8 +31,8 @@ static inline void ehci_brcm_wait_for_sof(struct ehci_hcd *ehci, u32 delay)
int res;

/* Wait for next microframe (every 125 usecs) */
- res = readl_relaxed_poll_timeout(&ehci->regs->frame_index, val,
- val != frame_idx, 1, 130);
+ res = readl_relaxed_poll_timeout_atomic(&ehci->regs->frame_index,
+ val, val != frame_idx, 1, 130);
if (res)
ehci_err(ehci, "Error waiting for SOF\n");
udelay(delay);
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index 477c0927dc1b..179c02f5209e 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -73,6 +73,7 @@ static const struct usb_device_id edgeport_4port_id_table[] = {
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_22I) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_412_4) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_COMPATIBLE) },
+ { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_BLACKBOX_IC135A) },
{ }
};

@@ -121,6 +122,7 @@ static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_8R) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_8RR) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_412_8) },
+ { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_BLACKBOX_IC135A) },
{ USB_DEVICE(USB_VENDOR_ID_NCR, NCR_DEVICE_ID_EPIC_0202) },
{ USB_DEVICE(USB_VENDOR_ID_NCR, NCR_DEVICE_ID_EPIC_0203) },
{ USB_DEVICE(USB_VENDOR_ID_NCR, NCR_DEVICE_ID_EPIC_0310) },
@@ -470,6 +472,7 @@ static void get_product_info(struct edgeport_serial *edge_serial)
case ION_DEVICE_ID_EDGEPORT_2_DIN:
case ION_DEVICE_ID_EDGEPORT_4_DIN:
case ION_DEVICE_ID_EDGEPORT_16_DUAL_CPU:
+ case ION_DEVICE_ID_BLACKBOX_IC135A:
product_info->IsRS232 = 1;
break;

diff --git a/drivers/usb/serial/io_usbvend.h b/drivers/usb/serial/io_usbvend.h
index 9a6f742ad3ab..c82a275e8e76 100644
--- a/drivers/usb/serial/io_usbvend.h
+++ b/drivers/usb/serial/io_usbvend.h
@@ -211,6 +211,7 @@

//
// Definitions for other product IDs
+#define ION_DEVICE_ID_BLACKBOX_IC135A 0x0801 // OEM device (rebranded Edgeport/4)
#define ION_DEVICE_ID_MT4X56USB 0x1403 // OEM device
#define ION_DEVICE_ID_E5805A 0x1A01 // OEM device (rebranded Edgeport/4)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 58f34c8d2b84..2d632e892da4 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -2441,6 +2441,9 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d22, 0xff, 0xff, 0x30) }, /* MeiG Smart SRM815 and SRM825L */
{ USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d22, 0xff, 0xff, 0x40) }, /* MeiG Smart SRM825L */
{ USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d22, 0xff, 0xff, 0x60) }, /* MeiG Smart SRM825L */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d38, 0xff, 0xff, 0x30) }, /* MeiG Smart SRM825WN (Diag) */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d38, 0xff, 0xff, 0x40) }, /* MeiG Smart SRM825WN (AT) */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d38, 0xff, 0xff, 0x60) }, /* MeiG Smart SRM825WN (NMEA) */
{ USB_DEVICE_INTERFACE_CLASS(0x2df3, 0x9d03, 0xff) }, /* LongSung M5710 */
{ USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1404, 0xff) }, /* GosunCn GM500 RNDIS */
{ USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1405, 0xff) }, /* GosunCn GM500 MBIM */
@@ -2461,6 +2464,7 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x0302, 0xff) }, /* Rolling RW101R-GL (laptop MBIM) */
{ USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x0802, 0xff), /* Rolling RW350-GL (laptop MBIM) */
.driver_info = RSVD(5) },
+ { USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x1003, 0xff) }, /* Rolling RW135R-GL (laptop MBIM) */
{ USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WWD for Global */
{ USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0x00, 0x40) },
{ USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0xff, 0x40) },
diff --git a/drivers/vfio/device_cdev.c b/drivers/vfio/device_cdev.c
index e75da0a70d1f..bb1817bd4ff3 100644
--- a/drivers/vfio/device_cdev.c
+++ b/drivers/vfio/device_cdev.c
@@ -39,6 +39,13 @@ int vfio_device_fops_cdev_open(struct inode *inode, struct file *filep)

filep->private_data = df;

+ /*
+ * Use the pseudo fs inode on the device to link all mmaps
+ * to the same address space, allowing us to unmap all vmas
+ * associated to this device using unmap_mapping_range().
+ */
+ filep->f_mapping = device->inode->i_mapping;
+
return 0;

err_put_registration:
diff --git a/drivers/vfio/group.c b/drivers/vfio/group.c
index 54c3079031e1..4cd857ff0259 100644
--- a/drivers/vfio/group.c
+++ b/drivers/vfio/group.c
@@ -285,6 +285,13 @@ static struct file *vfio_device_open_file(struct vfio_device *device)
*/
filep->f_mode |= (FMODE_PREAD | FMODE_PWRITE);

+ /*
+ * Use the pseudo fs inode on the device to link all mmaps
+ * to the same address space, allowing us to unmap all vmas
+ * associated to this device using unmap_mapping_range().
+ */
+ filep->f_mapping = device->inode->i_mapping;
+
if (device->group->type == VFIO_NO_IOMMU)
dev_warn(device->dev, "vfio-noiommu device opened by user "
"(%s:%d)\n", current->comm, task_pid_nr(current));
diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c
index 3f139360752e..55e28feba475 100644
--- a/drivers/vfio/pci/vfio_pci_core.c
+++ b/drivers/vfio/pci/vfio_pci_core.c
@@ -1599,100 +1599,20 @@ ssize_t vfio_pci_core_write(struct vfio_device *core_vdev, const char __user *bu
}
EXPORT_SYMBOL_GPL(vfio_pci_core_write);

-/* Return 1 on zap and vma_lock acquired, 0 on contention (only with @try) */
-static int vfio_pci_zap_and_vma_lock(struct vfio_pci_core_device *vdev, bool try)
+static void vfio_pci_zap_bars(struct vfio_pci_core_device *vdev)
{
- struct vfio_pci_mmap_vma *mmap_vma, *tmp;
+ struct vfio_device *core_vdev = &vdev->vdev;
+ loff_t start = VFIO_PCI_INDEX_TO_OFFSET(VFIO_PCI_BAR0_REGION_INDEX);
+ loff_t end = VFIO_PCI_INDEX_TO_OFFSET(VFIO_PCI_ROM_REGION_INDEX);
+ loff_t len = end - start;

- /*
- * Lock ordering:
- * vma_lock is nested under mmap_lock for vm_ops callback paths.
- * The memory_lock semaphore is used by both code paths calling
- * into this function to zap vmas and the vm_ops.fault callback
- * to protect the memory enable state of the device.
- *
- * When zapping vmas we need to maintain the mmap_lock => vma_lock
- * ordering, which requires using vma_lock to walk vma_list to
- * acquire an mm, then dropping vma_lock to get the mmap_lock and
- * reacquiring vma_lock. This logic is derived from similar
- * requirements in uverbs_user_mmap_disassociate().
- *
- * mmap_lock must always be the top-level lock when it is taken.
- * Therefore we can only hold the memory_lock write lock when
- * vma_list is empty, as we'd need to take mmap_lock to clear
- * entries. vma_list can only be guaranteed empty when holding
- * vma_lock, thus memory_lock is nested under vma_lock.
- *
- * This enables the vm_ops.fault callback to acquire vma_lock,
- * followed by memory_lock read lock, while already holding
- * mmap_lock without risk of deadlock.
- */
- while (1) {
- struct mm_struct *mm = NULL;
-
- if (try) {
- if (!mutex_trylock(&vdev->vma_lock))
- return 0;
- } else {
- mutex_lock(&vdev->vma_lock);
- }
- while (!list_empty(&vdev->vma_list)) {
- mmap_vma = list_first_entry(&vdev->vma_list,
- struct vfio_pci_mmap_vma,
- vma_next);
- mm = mmap_vma->vma->vm_mm;
- if (mmget_not_zero(mm))
- break;
-
- list_del(&mmap_vma->vma_next);
- kfree(mmap_vma);
- mm = NULL;
- }
- if (!mm)
- return 1;
- mutex_unlock(&vdev->vma_lock);
-
- if (try) {
- if (!mmap_read_trylock(mm)) {
- mmput(mm);
- return 0;
- }
- } else {
- mmap_read_lock(mm);
- }
- if (try) {
- if (!mutex_trylock(&vdev->vma_lock)) {
- mmap_read_unlock(mm);
- mmput(mm);
- return 0;
- }
- } else {
- mutex_lock(&vdev->vma_lock);
- }
- list_for_each_entry_safe(mmap_vma, tmp,
- &vdev->vma_list, vma_next) {
- struct vm_area_struct *vma = mmap_vma->vma;
-
- if (vma->vm_mm != mm)
- continue;
-
- list_del(&mmap_vma->vma_next);
- kfree(mmap_vma);
-
- zap_vma_ptes(vma, vma->vm_start,
- vma->vm_end - vma->vm_start);
- }
- mutex_unlock(&vdev->vma_lock);
- mmap_read_unlock(mm);
- mmput(mm);
- }
+ unmap_mapping_range(core_vdev->inode->i_mapping, start, len, true);
}

void vfio_pci_zap_and_down_write_memory_lock(struct vfio_pci_core_device *vdev)
{
- vfio_pci_zap_and_vma_lock(vdev, false);
down_write(&vdev->memory_lock);
- mutex_unlock(&vdev->vma_lock);
+ vfio_pci_zap_bars(vdev);
}

u16 vfio_pci_memory_lock_and_enable(struct vfio_pci_core_device *vdev)
@@ -1714,99 +1634,56 @@ void vfio_pci_memory_unlock_and_restore(struct vfio_pci_core_device *vdev, u16 c
up_write(&vdev->memory_lock);
}

-/* Caller holds vma_lock */
-static int __vfio_pci_add_vma(struct vfio_pci_core_device *vdev,
- struct vm_area_struct *vma)
-{
- struct vfio_pci_mmap_vma *mmap_vma;
-
- mmap_vma = kmalloc(sizeof(*mmap_vma), GFP_KERNEL_ACCOUNT);
- if (!mmap_vma)
- return -ENOMEM;
-
- mmap_vma->vma = vma;
- list_add(&mmap_vma->vma_next, &vdev->vma_list);
-
- return 0;
-}
-
-/*
- * Zap mmaps on open so that we can fault them in on access and therefore
- * our vma_list only tracks mappings accessed since last zap.
- */
-static void vfio_pci_mmap_open(struct vm_area_struct *vma)
-{
- zap_vma_ptes(vma, vma->vm_start, vma->vm_end - vma->vm_start);
-}
-
-static void vfio_pci_mmap_close(struct vm_area_struct *vma)
+static unsigned long vma_to_pfn(struct vm_area_struct *vma)
{
struct vfio_pci_core_device *vdev = vma->vm_private_data;
- struct vfio_pci_mmap_vma *mmap_vma;
+ int index = vma->vm_pgoff >> (VFIO_PCI_OFFSET_SHIFT - PAGE_SHIFT);
+ u64 pgoff;

- mutex_lock(&vdev->vma_lock);
- list_for_each_entry(mmap_vma, &vdev->vma_list, vma_next) {
- if (mmap_vma->vma == vma) {
- list_del(&mmap_vma->vma_next);
- kfree(mmap_vma);
- break;
- }
- }
- mutex_unlock(&vdev->vma_lock);
+ pgoff = vma->vm_pgoff &
+ ((1U << (VFIO_PCI_OFFSET_SHIFT - PAGE_SHIFT)) - 1);
+
+ return (pci_resource_start(vdev->pdev, index) >> PAGE_SHIFT) + pgoff;
}

static vm_fault_t vfio_pci_mmap_fault(struct vm_fault *vmf)
{
struct vm_area_struct *vma = vmf->vma;
struct vfio_pci_core_device *vdev = vma->vm_private_data;
- struct vfio_pci_mmap_vma *mmap_vma;
- vm_fault_t ret = VM_FAULT_NOPAGE;
+ unsigned long pfn, pgoff = vmf->pgoff - vma->vm_pgoff;
+ unsigned long addr = vma->vm_start;
+ vm_fault_t ret = VM_FAULT_SIGBUS;
+
+ pfn = vma_to_pfn(vma);

- mutex_lock(&vdev->vma_lock);
down_read(&vdev->memory_lock);

- /*
- * Memory region cannot be accessed if the low power feature is engaged
- * or memory access is disabled.
- */
- if (vdev->pm_runtime_engaged || !__vfio_pci_memory_enabled(vdev)) {
- ret = VM_FAULT_SIGBUS;
- goto up_out;
- }
+ if (vdev->pm_runtime_engaged || !__vfio_pci_memory_enabled(vdev))
+ goto out_unlock;
+
+ ret = vmf_insert_pfn(vma, vmf->address, pfn + pgoff);
+ if (ret & VM_FAULT_ERROR)
+ goto out_unlock;

/*
- * We populate the whole vma on fault, so we need to test whether
- * the vma has already been mapped, such as for concurrent faults
- * to the same vma. io_remap_pfn_range() will trigger a BUG_ON if
- * we ask it to fill the same range again.
+ * Pre-fault the remainder of the vma, abort further insertions and
+ * supress error if fault is encountered during pre-fault.
*/
- list_for_each_entry(mmap_vma, &vdev->vma_list, vma_next) {
- if (mmap_vma->vma == vma)
- goto up_out;
- }
-
- if (io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
- vma->vm_end - vma->vm_start,
- vma->vm_page_prot)) {
- ret = VM_FAULT_SIGBUS;
- zap_vma_ptes(vma, vma->vm_start, vma->vm_end - vma->vm_start);
- goto up_out;
- }
+ for (; addr < vma->vm_end; addr += PAGE_SIZE, pfn++) {
+ if (addr == vmf->address)
+ continue;

- if (__vfio_pci_add_vma(vdev, vma)) {
- ret = VM_FAULT_OOM;
- zap_vma_ptes(vma, vma->vm_start, vma->vm_end - vma->vm_start);
+ if (vmf_insert_pfn(vma, addr, pfn) & VM_FAULT_ERROR)
+ break;
}

-up_out:
+out_unlock:
up_read(&vdev->memory_lock);
- mutex_unlock(&vdev->vma_lock);
+
return ret;
}

static const struct vm_operations_struct vfio_pci_mmap_ops = {
- .open = vfio_pci_mmap_open,
- .close = vfio_pci_mmap_close,
.fault = vfio_pci_mmap_fault,
};

@@ -1869,11 +1746,12 @@ int vfio_pci_core_mmap(struct vfio_device *core_vdev, struct vm_area_struct *vma

vma->vm_private_data = vdev;
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
- vma->vm_pgoff = (pci_resource_start(pdev, index) >> PAGE_SHIFT) + pgoff;
+ vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot);

/*
- * See remap_pfn_range(), called from vfio_pci_fault() but we can't
- * change vm_flags within the fault handler. Set them now.
+ * Set vm_flags now, they should not be changed in the fault handler.
+ * We want the same flags and page protection (decrypted above) as
+ * io_remap_pfn_range() would set.
*/
vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP);
vma->vm_ops = &vfio_pci_mmap_ops;
@@ -2173,8 +2051,6 @@ int vfio_pci_core_init_dev(struct vfio_device *core_vdev)
mutex_init(&vdev->ioeventfds_lock);
INIT_LIST_HEAD(&vdev->dummy_resources_list);
INIT_LIST_HEAD(&vdev->ioeventfds_list);
- mutex_init(&vdev->vma_lock);
- INIT_LIST_HEAD(&vdev->vma_list);
INIT_LIST_HEAD(&vdev->sriov_pfs_item);
init_rwsem(&vdev->memory_lock);
xa_init(&vdev->ctx);
@@ -2190,7 +2066,6 @@ void vfio_pci_core_release_dev(struct vfio_device *core_vdev)

mutex_destroy(&vdev->igate);
mutex_destroy(&vdev->ioeventfds_lock);
- mutex_destroy(&vdev->vma_lock);
kfree(vdev->region);
kfree(vdev->pm_save);
}
@@ -2468,26 +2343,15 @@ static int vfio_pci_dev_set_pm_runtime_get(struct vfio_device_set *dev_set)
return ret;
}

-/*
- * We need to get memory_lock for each device, but devices can share mmap_lock,
- * therefore we need to zap and hold the vma_lock for each device, and only then
- * get each memory_lock.
- */
static int vfio_pci_dev_set_hot_reset(struct vfio_device_set *dev_set,
struct vfio_pci_group_info *groups,
struct iommufd_ctx *iommufd_ctx)
{
- struct vfio_pci_core_device *cur_mem;
- struct vfio_pci_core_device *cur_vma;
- struct vfio_pci_core_device *cur;
+ struct vfio_pci_core_device *vdev;
struct pci_dev *pdev;
- bool is_mem = true;
int ret;

mutex_lock(&dev_set->lock);
- cur_mem = list_first_entry(&dev_set->device_list,
- struct vfio_pci_core_device,
- vdev.dev_set_list);

pdev = vfio_pci_dev_set_resettable(dev_set);
if (!pdev) {
@@ -2504,7 +2368,7 @@ static int vfio_pci_dev_set_hot_reset(struct vfio_device_set *dev_set,
if (ret)
goto err_unlock;

- list_for_each_entry(cur_vma, &dev_set->device_list, vdev.dev_set_list) {
+ list_for_each_entry(vdev, &dev_set->device_list, vdev.dev_set_list) {
bool owned;

/*
@@ -2528,38 +2392,38 @@ static int vfio_pci_dev_set_hot_reset(struct vfio_device_set *dev_set,
* Otherwise, reset is not allowed.
*/
if (iommufd_ctx) {
- int devid = vfio_iommufd_get_dev_id(&cur_vma->vdev,
+ int devid = vfio_iommufd_get_dev_id(&vdev->vdev,
iommufd_ctx);

owned = (devid > 0 || devid == -ENOENT);
} else {
- owned = vfio_dev_in_groups(&cur_vma->vdev, groups);
+ owned = vfio_dev_in_groups(&vdev->vdev, groups);
}

if (!owned) {
ret = -EINVAL;
- goto err_undo;
+ break;
}

/*
- * Locking multiple devices is prone to deadlock, runaway and
- * unwind if we hit contention.
+ * Take the memory write lock for each device and zap BAR
+ * mappings to prevent the user accessing the device while in
+ * reset. Locking multiple devices is prone to deadlock,
+ * runaway and unwind if we hit contention.
*/
- if (!vfio_pci_zap_and_vma_lock(cur_vma, true)) {
+ if (!down_write_trylock(&vdev->memory_lock)) {
ret = -EBUSY;
- goto err_undo;
+ break;
}
+
+ vfio_pci_zap_bars(vdev);
}
- cur_vma = NULL;

- list_for_each_entry(cur_mem, &dev_set->device_list, vdev.dev_set_list) {
- if (!down_write_trylock(&cur_mem->memory_lock)) {
- ret = -EBUSY;
- goto err_undo;
- }
- mutex_unlock(&cur_mem->vma_lock);
+ if (!list_entry_is_head(vdev,
+ &dev_set->device_list, vdev.dev_set_list)) {
+ vdev = list_prev_entry(vdev, vdev.dev_set_list);
+ goto err_undo;
}
- cur_mem = NULL;

/*
* The pci_reset_bus() will reset all the devices in the bus.
@@ -2570,25 +2434,22 @@ static int vfio_pci_dev_set_hot_reset(struct vfio_device_set *dev_set,
* cause the PCI config space reset without restoring the original
* state (saved locally in 'vdev->pm_save').
*/
- list_for_each_entry(cur, &dev_set->device_list, vdev.dev_set_list)
- vfio_pci_set_power_state(cur, PCI_D0);
+ list_for_each_entry(vdev, &dev_set->device_list, vdev.dev_set_list)
+ vfio_pci_set_power_state(vdev, PCI_D0);

ret = pci_reset_bus(pdev);

+ vdev = list_last_entry(&dev_set->device_list,
+ struct vfio_pci_core_device, vdev.dev_set_list);
+
err_undo:
- list_for_each_entry(cur, &dev_set->device_list, vdev.dev_set_list) {
- if (cur == cur_mem)
- is_mem = false;
- if (cur == cur_vma)
- break;
- if (is_mem)
- up_write(&cur->memory_lock);
- else
- mutex_unlock(&cur->vma_lock);
- }
+ list_for_each_entry_from_reverse(vdev, &dev_set->device_list,
+ vdev.dev_set_list)
+ up_write(&vdev->memory_lock);
+
+ list_for_each_entry(vdev, &dev_set->device_list, vdev.dev_set_list)
+ pm_runtime_put(&vdev->pdev->dev);

- list_for_each_entry(cur, &dev_set->device_list, vdev.dev_set_list)
- pm_runtime_put(&cur->pdev->dev);
err_unlock:
mutex_unlock(&dev_set->lock);
return ret;
diff --git a/drivers/vfio/vfio_main.c b/drivers/vfio/vfio_main.c
index 6dfb290c339f..ec4fbd993bf0 100644
--- a/drivers/vfio/vfio_main.c
+++ b/drivers/vfio/vfio_main.c
@@ -22,8 +22,10 @@
#include <linux/list.h>
#include <linux/miscdevice.h>
#include <linux/module.h>
+#include <linux/mount.h>
#include <linux/mutex.h>
#include <linux/pci.h>
+#include <linux/pseudo_fs.h>
#include <linux/rwsem.h>
#include <linux/sched.h>
#include <linux/slab.h>
@@ -43,9 +45,13 @@
#define DRIVER_AUTHOR "Alex Williamson <alex.williamson@redhat.com>"
#define DRIVER_DESC "VFIO - User Level meta-driver"

+#define VFIO_MAGIC 0x5646494f /* "VFIO" */
+
static struct vfio {
struct class *device_class;
struct ida device_ida;
+ struct vfsmount *vfs_mount;
+ int fs_count;
} vfio;

#ifdef CONFIG_VFIO_NOIOMMU
@@ -186,6 +192,8 @@ static void vfio_device_release(struct device *dev)
if (device->ops->release)
device->ops->release(device);

+ iput(device->inode);
+ simple_release_fs(&vfio.vfs_mount, &vfio.fs_count);
kvfree(device);
}

@@ -228,6 +236,34 @@ struct vfio_device *_vfio_alloc_device(size_t size, struct device *dev,
}
EXPORT_SYMBOL_GPL(_vfio_alloc_device);

+static int vfio_fs_init_fs_context(struct fs_context *fc)
+{
+ return init_pseudo(fc, VFIO_MAGIC) ? 0 : -ENOMEM;
+}
+
+static struct file_system_type vfio_fs_type = {
+ .name = "vfio",
+ .owner = THIS_MODULE,
+ .init_fs_context = vfio_fs_init_fs_context,
+ .kill_sb = kill_anon_super,
+};
+
+static struct inode *vfio_fs_inode_new(void)
+{
+ struct inode *inode;
+ int ret;
+
+ ret = simple_pin_fs(&vfio_fs_type, &vfio.vfs_mount, &vfio.fs_count);
+ if (ret)
+ return ERR_PTR(ret);
+
+ inode = alloc_anon_inode(vfio.vfs_mount->mnt_sb);
+ if (IS_ERR(inode))
+ simple_release_fs(&vfio.vfs_mount, &vfio.fs_count);
+
+ return inode;
+}
+
/*
* Initialize a vfio_device so it can be registered to vfio core.
*/
@@ -246,6 +282,11 @@ static int vfio_init_device(struct vfio_device *device, struct device *dev,
init_completion(&device->comp);
device->dev = dev;
device->ops = ops;
+ device->inode = vfio_fs_inode_new();
+ if (IS_ERR(device->inode)) {
+ ret = PTR_ERR(device->inode);
+ goto out_inode;
+ }

if (ops->init) {
ret = ops->init(device);
@@ -260,6 +301,9 @@ static int vfio_init_device(struct vfio_device *device, struct device *dev,
return 0;

out_uninit:
+ iput(device->inode);
+ simple_release_fs(&vfio.vfs_mount, &vfio.fs_count);
+out_inode:
vfio_release_device_set(device);
ida_free(&vfio.device_ida, device->index);
return ret;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index cf39f52fc048..46df425ab7ba 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -691,8 +691,12 @@ static noinline int cow_file_range_inline(struct btrfs_inode *inode, u64 size,
* it won't count as data extent, free them directly here.
* And at reserve time, it's always aligned to page size, so
* just free one page here.
+ *
+ * If we fallback to non-inline (ret == 1) due to -ENOSPC, then we need
+ * to keep the data reservation.
*/
- btrfs_qgroup_free_data(inode, NULL, 0, PAGE_SIZE, NULL);
+ if (ret <= 0)
+ btrfs_qgroup_free_data(inode, NULL, 0, fs_info->sectorsize, NULL);
btrfs_free_path(path);
if (trans)
btrfs_end_transaction(trans);
diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c
index d2c36b765c83..0689bd3832f8 100644
--- a/fs/btrfs/tree-checker.c
+++ b/fs/btrfs/tree-checker.c
@@ -1224,6 +1224,23 @@ static int check_root_item(struct extent_buffer *leaf, struct btrfs_key *key,
btrfs_root_drop_level(&ri), BTRFS_MAX_LEVEL - 1);
return -EUCLEAN;
}
+ /*
+ * If drop_progress.objectid is non-zero, a btrfs_drop_snapshot() was
+ * interrupted and the resume point was recorded in drop_progress and
+ * drop_level. In that case drop_level must be >= 1: level 0 is the
+ * leaf level and drop_snapshot never saves a checkpoint there (it
+ * only records checkpoints at internal node levels in DROP_REFERENCE
+ * stage). A zero drop_level combined with a non-zero drop_progress
+ * objectid indicates on-disk corruption and would cause a BUG_ON in
+ * merge_reloc_root() and btrfs_drop_snapshot() at mount time.
+ */
+ if (unlikely(btrfs_disk_key_objectid(&ri.drop_progress) != 0 &&
+ btrfs_root_drop_level(&ri) == 0)) {
+ generic_err(leaf, slot,
+ "invalid root drop_level 0 with non-zero drop_progress objectid %llu",
+ btrfs_disk_key_objectid(&ri.drop_progress));
+ return -EUCLEAN;
+ }

/* Flags check */
if (unlikely(btrfs_root_flags(&ri) & ~valid_root_flags)) {
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index 6e8b8c46ba18..dabbfc3b7d77 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -342,7 +342,10 @@ int btrfs_get_dev_zone_info_all_devices(struct btrfs_fs_info *fs_info)
if (!btrfs_fs_incompat(fs_info, ZONED))
return 0;

- mutex_lock(&fs_devices->device_list_mutex);
+ /*
+ * No need to take the device_list mutex here, we're still in the mount
+ * path and devices cannot be added to or removed from the list yet.
+ */
list_for_each_entry(device, &fs_devices->devices, dev_list) {
/* We can skip reading of zone info for missing devices */
if (!device->bdev)
@@ -352,7 +355,6 @@ int btrfs_get_dev_zone_info_all_devices(struct btrfs_fs_info *fs_info)
if (ret)
break;
}
- mutex_unlock(&fs_devices->device_list_mutex);

return ret;
}
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index 60727da9ea11..ca5f1b0d2687 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -997,7 +997,7 @@ static int ext4_fc_submit_inode_data_all(journal_t *journal)
finish_wait(&ei->i_fc_wait, &wait);
}
spin_unlock(&sbi->s_fc_lock);
- ret = jbd2_submit_inode_data(journal, ei->jinode);
+ ret = jbd2_submit_inode_data(journal, READ_ONCE(ei->jinode));
if (ret)
return ret;
spin_lock(&sbi->s_fc_lock);
@@ -1022,7 +1022,7 @@ static int ext4_fc_wait_inode_data_all(journal_t *journal)
continue;
spin_unlock(&sbi->s_fc_lock);

- ret = jbd2_wait_inode_data(journal, pos->jinode);
+ ret = jbd2_wait_inode_data(journal, READ_ONCE(pos->jinode));
if (ret)
return ret;
spin_lock(&sbi->s_fc_lock);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 949377692c49..d72e7f3263ea 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -123,6 +123,8 @@ void ext4_inode_csum_set(struct inode *inode, struct ext4_inode *raw,
static inline int ext4_begin_ordered_truncate(struct inode *inode,
loff_t new_size)
{
+ struct jbd2_inode *jinode = READ_ONCE(EXT4_I(inode)->jinode);
+
trace_ext4_begin_ordered_truncate(inode, new_size);
/*
* If jinode is zero, then we never opened the file for
@@ -130,10 +132,10 @@ static inline int ext4_begin_ordered_truncate(struct inode *inode,
* jbd2_journal_begin_ordered_truncate() since there's no
* outstanding writes we need to flush.
*/
- if (!EXT4_I(inode)->jinode)
+ if (!jinode)
return 0;
return jbd2_journal_begin_ordered_truncate(EXT4_JOURNAL(inode),
- EXT4_I(inode)->jinode,
+ jinode,
new_size);
}

@@ -4160,8 +4162,13 @@ int ext4_inode_attach_jinode(struct inode *inode)
spin_unlock(&inode->i_lock);
return -ENOMEM;
}
- ei->jinode = jinode;
- jbd2_journal_init_jbd_inode(ei->jinode, inode);
+ jbd2_journal_init_jbd_inode(jinode, inode);
+ /*
+ * Publish ->jinode only after it is fully initialized so that
+ * readers never observe a partially initialized jbd2_inode.
+ */
+ smp_wmb();
+ WRITE_ONCE(ei->jinode, jinode);
jinode = NULL;
}
spin_unlock(&inode->i_lock);
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index e9be0c0a8042..73b27ddafe91 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2892,6 +2892,8 @@ ext4_mb_regular_allocator(struct ext4_allocation_context *ac)
* from the goal value specified
*/
group = ac->ac_g_ex.fe_group;
+ if (group >= ngroups)
+ group = 0;
ac->ac_groups_linear_remaining = sbi->s_mb_max_linear_groups;
prefetch_grp = group;

diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 3a2a10d6d43d..c4e9488483d9 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -60,6 +60,7 @@
#include <linux/crc32.h>
#include <linux/vmalloc.h>
#include <linux/bio.h>
+#include <linux/log2.h>

#include "gfs2.h"
#include "incore.h"
@@ -562,15 +563,18 @@ static struct gfs2_dirent *gfs2_dirent_scan(struct inode *inode, void *buf,
int ret = 0;

ret = gfs2_dirent_offset(GFS2_SB(inode), buf);
- if (ret < 0)
- goto consist_inode;
-
+ if (ret < 0) {
+ gfs2_consist_inode(GFS2_I(inode));
+ return ERR_PTR(-EIO);
+ }
offset = ret;
prev = NULL;
dent = buf + offset;
size = be16_to_cpu(dent->de_rec_len);
- if (gfs2_check_dirent(GFS2_SB(inode), dent, offset, size, len, 1))
- goto consist_inode;
+ if (gfs2_check_dirent(GFS2_SB(inode), dent, offset, size, len, 1)) {
+ gfs2_consist_inode(GFS2_I(inode));
+ return ERR_PTR(-EIO);
+ }
do {
ret = scan(dent, name, opaque);
if (ret)
@@ -582,8 +586,10 @@ static struct gfs2_dirent *gfs2_dirent_scan(struct inode *inode, void *buf,
dent = buf + offset;
size = be16_to_cpu(dent->de_rec_len);
if (gfs2_check_dirent(GFS2_SB(inode), dent, offset, size,
- len, 0))
- goto consist_inode;
+ len, 0)) {
+ gfs2_consist_inode(GFS2_I(inode));
+ return ERR_PTR(-EIO);
+ }
} while(1);

switch(ret) {
@@ -597,10 +603,6 @@ static struct gfs2_dirent *gfs2_dirent_scan(struct inode *inode, void *buf,
BUG_ON(ret > 0);
return ERR_PTR(ret);
}
-
-consist_inode:
- gfs2_consist_inode(GFS2_I(inode));
- return ERR_PTR(-EIO);
}

static int dirent_check_reclen(struct gfs2_inode *dip,
@@ -609,14 +611,16 @@ static int dirent_check_reclen(struct gfs2_inode *dip,
const void *ptr = d;
u16 rec_len = be16_to_cpu(d->de_rec_len);

- if (unlikely(rec_len < sizeof(struct gfs2_dirent)))
- goto broken;
+ if (unlikely(rec_len < sizeof(struct gfs2_dirent))) {
+ gfs2_consist_inode(dip);
+ return -EIO;
+ }
ptr += rec_len;
if (ptr < end_p)
return rec_len;
if (ptr == end_p)
return -ENOENT;
-broken:
+
gfs2_consist_inode(dip);
return -EIO;
}
@@ -909,7 +913,6 @@ static int dir_make_exhash(struct inode *inode)
struct qstr args;
struct buffer_head *bh, *dibh;
struct gfs2_leaf *leaf;
- int y;
u32 x;
__be64 *lp;
u64 bn;
@@ -976,9 +979,7 @@ static int dir_make_exhash(struct inode *inode)
i_size_write(inode, sdp->sd_sb.sb_bsize / 2);
gfs2_add_inode_blocks(&dip->i_inode, 1);
dip->i_diskflags |= GFS2_DIF_EXHASH;
-
- for (x = sdp->sd_hash_ptrs, y = -1; x; x >>= 1, y++) ;
- dip->i_depth = y;
+ dip->i_depth = ilog2(sdp->sd_hash_ptrs);

gfs2_dinode_out(dip, dibh->b_data);

diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index 4a169c60bce6..f575cd8ff47c 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -11,6 +11,7 @@
#include <linux/bio.h>
#include <linux/posix_acl.h>
#include <linux/security.h>
+#include <linux/log2.h>

#include "gfs2.h"
#include "incore.h"
@@ -412,10 +413,14 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
struct inode *inode = &ip->i_inode;
bool is_new = inode->i_state & I_NEW;

- if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr)))
- goto corrupt;
- if (unlikely(!is_new && inode_wrong_type(inode, mode)))
- goto corrupt;
+ if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr))) {
+ gfs2_consist_inode(ip);
+ return -EIO;
+ }
+ if (unlikely(!is_new && inode_wrong_type(inode, mode))) {
+ gfs2_consist_inode(ip);
+ return -EIO;
+ }
ip->i_no_formal_ino = be64_to_cpu(str->di_num.no_formal_ino);
inode->i_mode = mode;
if (is_new) {
@@ -451,26 +456,33 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
/* i_diskflags and i_eattr must be set before gfs2_set_inode_flags() */
gfs2_set_inode_flags(inode);
height = be16_to_cpu(str->di_height);
- if (unlikely(height > sdp->sd_max_height))
- goto corrupt;
+ if (unlikely(height > sdp->sd_max_height)) {
+ gfs2_consist_inode(ip);
+ return -EIO;
+ }
ip->i_height = (u8)height;

depth = be16_to_cpu(str->di_depth);
- if (unlikely(depth > GFS2_DIR_MAX_DEPTH))
- goto corrupt;
+ if (unlikely(depth > GFS2_DIR_MAX_DEPTH)) {
+ gfs2_consist_inode(ip);
+ return -EIO;
+ }
+ if ((ip->i_diskflags & GFS2_DIF_EXHASH) &&
+ depth < ilog2(sdp->sd_hash_ptrs)) {
+ gfs2_consist_inode(ip);
+ return -EIO;
+ }
ip->i_depth = (u8)depth;
ip->i_entries = be32_to_cpu(str->di_entries);

- if (gfs2_is_stuffed(ip) && inode->i_size > gfs2_max_stuffed_size(ip))
- goto corrupt;
-
+ if (gfs2_is_stuffed(ip) && inode->i_size > gfs2_max_stuffed_size(ip)) {
+ gfs2_consist_inode(ip);
+ return -EIO;
+ }
if (S_ISREG(inode->i_mode))
gfs2_set_aops(inode);

return 0;
-corrupt:
- gfs2_consist_inode(ip);
- return -EIO;
}

/**
diff --git a/fs/gfs2/xattr.c b/fs/gfs2/xattr.c
index 2117011c8c57..27b9dd1179c2 100644
--- a/fs/gfs2/xattr.c
+++ b/fs/gfs2/xattr.c
@@ -96,30 +96,34 @@ static int ea_foreach_i(struct gfs2_inode *ip, struct buffer_head *bh,
return -EIO;

for (ea = GFS2_EA_BH2FIRST(bh);; prev = ea, ea = GFS2_EA2NEXT(ea)) {
- if (!GFS2_EA_REC_LEN(ea))
- goto fail;
+ if (!GFS2_EA_REC_LEN(ea)) {
+ gfs2_consist_inode(ip);
+ return -EIO;
+ }
if (!(bh->b_data <= (char *)ea && (char *)GFS2_EA2NEXT(ea) <=
- bh->b_data + bh->b_size))
- goto fail;
- if (!gfs2_eatype_valid(sdp, ea->ea_type))
- goto fail;
+ bh->b_data + bh->b_size)) {
+ gfs2_consist_inode(ip);
+ return -EIO;
+ }
+ if (!gfs2_eatype_valid(sdp, ea->ea_type)) {
+ gfs2_consist_inode(ip);
+ return -EIO;
+ }
error = ea_call(ip, bh, ea, prev, data);
if (error)
return error;

if (GFS2_EA_IS_LAST(ea)) {
if ((char *)GFS2_EA2NEXT(ea) !=
- bh->b_data + bh->b_size)
- goto fail;
+ bh->b_data + bh->b_size) {
+ gfs2_consist_inode(ip);
+ return -EIO;
+ }
break;
}
}

return error;
-
-fail:
- gfs2_consist_inode(ip);
- return -EIO;
}

static int ea_foreach(struct gfs2_inode *ip, ea_call_t ea_call, void *data)
diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index e9f4f845d760..b98331572ad2 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -309,7 +309,7 @@ enum {

/* register and unregister set references */
extern ip_set_id_t ip_set_get_byname(struct net *net,
- const char *name, struct ip_set **set);
+ const struct nlattr *name, struct ip_set **set);
extern void ip_set_put_byindex(struct net *net, ip_set_id_t index);
extern void ip_set_name_byindex(struct net *net, ip_set_id_t index, char *name);
extern ip_set_id_t ip_set_nfnl_get_byindex(struct net *net, ip_set_id_t index);
diff --git a/include/linux/swapops.h b/include/linux/swapops.h
index 925c84653af5..7555a4a3d3d4 100644
--- a/include/linux/swapops.h
+++ b/include/linux/swapops.h
@@ -488,11 +488,21 @@ static inline struct page *pfn_swap_entry_to_page(swp_entry_t entry)
{
struct page *p = pfn_to_page(swp_offset_pfn(entry));

- /*
- * Any use of migration entries may only occur while the
- * corresponding page is locked
- */
- BUG_ON(is_migration_entry(entry) && !PageLocked(p));
+ if (is_migration_entry(entry)) {
+ /*
+ * Ensure we do not race with split, which might alter tail
+ * pages into new folios and thus result in observing an
+ * unlocked folio.
+ * This matches the write barrier in __split_folio_to_order().
+ */
+ smp_rmb();
+
+ /*
+ * Any use of migration entries may only occur while the
+ * corresponding page is locked
+ */
+ BUG_ON(!PageLocked(p));
+ }

return p;
}
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 5ac5f182ce0b..514a7f9b3ef4 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -64,6 +64,7 @@ struct vfio_device {
struct completion comp;
struct iommufd_access *iommufd_access;
void (*put_kvm)(struct kvm *kvm);
+ struct inode *inode;
#if IS_ENABLED(CONFIG_IOMMUFD)
struct iommufd_device *iommufd_device;
u8 iommufd_attached:1;
diff --git a/include/linux/vfio_pci_core.h b/include/linux/vfio_pci_core.h
index 562e8754869d..4f283514a1ed 100644
--- a/include/linux/vfio_pci_core.h
+++ b/include/linux/vfio_pci_core.h
@@ -93,8 +93,6 @@ struct vfio_pci_core_device {
struct list_head sriov_pfs_item;
struct vfio_pci_core_device *sriov_pf_core_dev;
struct notifier_block nb;
- struct mutex vma_lock;
- struct list_head vma_list;
struct rw_semaphore memory_lock;
};

diff --git a/include/net/netfilter/nf_conntrack_expect.h b/include/net/netfilter/nf_conntrack_expect.h
index 165e7a03b8e9..e9a8350e7ccf 100644
--- a/include/net/netfilter/nf_conntrack_expect.h
+++ b/include/net/netfilter/nf_conntrack_expect.h
@@ -22,10 +22,16 @@ struct nf_conntrack_expect {
/* Hash member */
struct hlist_node hnode;

+ /* Network namespace */
+ possible_net_t net;
+
/* We expect this tuple, with the following mask */
struct nf_conntrack_tuple tuple;
struct nf_conntrack_tuple_mask mask;

+#ifdef CONFIG_NF_CONNTRACK_ZONES
+ struct nf_conntrack_zone zone;
+#endif
/* Usage count. */
refcount_t use;

@@ -40,7 +46,7 @@ struct nf_conntrack_expect {
struct nf_conntrack_expect *this);

/* Helper to assign to new connection */
- struct nf_conntrack_helper *helper;
+ struct nf_conntrack_helper __rcu *helper;

/* The conntrack of the master connection */
struct nf_conn *master;
@@ -62,7 +68,17 @@ struct nf_conntrack_expect {

static inline struct net *nf_ct_exp_net(struct nf_conntrack_expect *exp)
{
- return nf_ct_net(exp->master);
+ return read_pnet(&exp->net);
+}
+
+static inline bool nf_ct_exp_zone_equal_any(const struct nf_conntrack_expect *a,
+ const struct nf_conntrack_zone *b)
+{
+#ifdef CONFIG_NF_CONNTRACK_ZONES
+ return a->zone.id == b->id;
+#else
+ return true;
+#endif
}

#define NF_CT_EXP_POLICY_NAME_LEN 16
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 226f2cd338d6..45eb795c8c04 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -6912,7 +6912,8 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
} else if (reg->type == CONST_PTR_TO_MAP) {
err = check_ptr_to_map_access(env, regs, regno, off, size, t,
value_regno);
- } else if (base_type(reg->type) == PTR_TO_BUF) {
+ } else if (base_type(reg->type) == PTR_TO_BUF &&
+ !type_may_be_null(reg->type)) {
bool rdonly_mem = type_is_rdonly_mem(reg->type);
u32 *max_access;

@@ -16148,8 +16149,13 @@ static bool regsafe(struct bpf_verifier_env *env, struct bpf_reg_state *rold,
* since someone could have accessed through (ptr - k), or
* even done ptr -= k in a register, to get a safe access.
*/
- if (rold->range > rcur->range)
+ if (rold->range < 0 || rcur->range < 0) {
+ /* special case for [BEYOND|AT]_PKT_END */
+ if (rold->range != rcur->range)
+ return false;
+ } else if (rold->range > rcur->range) {
return false;
+ }
/* If the offsets don't match, we can't trust our alignment;
* nor can we be sure that we won't fall out of range.
*/
diff --git a/kernel/fork.c b/kernel/fork.c
index ce6f6e1e3905..5b60692b1a4e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -733,6 +733,21 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm,
} else if (anon_vma_fork(tmp, mpnt))
goto fail_nomem_anon_vma_fork;
vm_flags_clear(tmp, VM_LOCKED_MASK);
+ /*
+ * Copy/update hugetlb private vma information.
+ */
+ if (is_vm_hugetlb_page(tmp))
+ hugetlb_dup_vma_private(tmp);
+
+ /* Link the vma into the MT */
+ if (vma_iter_bulk_store(&vmi, tmp))
+ goto fail_nomem_vmi_store;
+
+ mm->map_count++;
+
+ if (tmp->vm_ops && tmp->vm_ops->open)
+ tmp->vm_ops->open(tmp);
+
file = tmp->vm_file;
if (file) {
struct address_space *mapping = file->f_mapping;
@@ -749,23 +764,9 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm,
i_mmap_unlock_write(mapping);
}

- /*
- * Copy/update hugetlb private vma information.
- */
- if (is_vm_hugetlb_page(tmp))
- hugetlb_dup_vma_private(tmp);
-
- /* Link the vma into the MT */
- if (vma_iter_bulk_store(&vmi, tmp))
- goto fail_nomem_vmi_store;
-
- mm->map_count++;
if (!(tmp->vm_flags & VM_WIPEONFORK))
retval = copy_page_range(tmp, mpnt);

- if (tmp->vm_ops && tmp->vm_ops->open)
- tmp->vm_ops->open(tmp);
-
if (retval)
goto loop_out;
}
diff --git a/net/atm/lec.c b/net/atm/lec.c
index 0d4b8e5936dc..d8ab96962579 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -154,10 +154,19 @@ static void lec_handle_bridge(struct sk_buff *skb, struct net_device *dev)
/* 0x01 is topology change */

priv = netdev_priv(dev);
- atm_force_charge(priv->lecd, skb2->truesize);
- sk = sk_atm(priv->lecd);
- skb_queue_tail(&sk->sk_receive_queue, skb2);
- sk->sk_data_ready(sk);
+ struct atm_vcc *vcc;
+
+ rcu_read_lock();
+ vcc = rcu_dereference(priv->lecd);
+ if (vcc) {
+ atm_force_charge(vcc, skb2->truesize);
+ sk = sk_atm(vcc);
+ skb_queue_tail(&sk->sk_receive_queue, skb2);
+ sk->sk_data_ready(sk);
+ } else {
+ dev_kfree_skb(skb2);
+ }
+ rcu_read_unlock();
}
}
#endif /* IS_ENABLED(CONFIG_BRIDGE) */
@@ -216,7 +225,7 @@ static netdev_tx_t lec_start_xmit(struct sk_buff *skb,
int is_rdesc;

pr_debug("called\n");
- if (!priv->lecd) {
+ if (!rcu_access_pointer(priv->lecd)) {
pr_info("%s:No lecd attached\n", dev->name);
dev->stats.tx_errors++;
netif_stop_queue(dev);
@@ -449,10 +458,19 @@ static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
break;
skb2->len = sizeof(struct atmlec_msg);
skb_copy_to_linear_data(skb2, mesg, sizeof(*mesg));
- atm_force_charge(priv->lecd, skb2->truesize);
- sk = sk_atm(priv->lecd);
- skb_queue_tail(&sk->sk_receive_queue, skb2);
- sk->sk_data_ready(sk);
+ struct atm_vcc *vcc;
+
+ rcu_read_lock();
+ vcc = rcu_dereference(priv->lecd);
+ if (vcc) {
+ atm_force_charge(vcc, skb2->truesize);
+ sk = sk_atm(vcc);
+ skb_queue_tail(&sk->sk_receive_queue, skb2);
+ sk->sk_data_ready(sk);
+ } else {
+ dev_kfree_skb(skb2);
+ }
+ rcu_read_unlock();
}
}
#endif /* IS_ENABLED(CONFIG_BRIDGE) */
@@ -468,23 +486,16 @@ static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)

static void lec_atm_close(struct atm_vcc *vcc)
{
- struct sk_buff *skb;
struct net_device *dev = (struct net_device *)vcc->proto_data;
struct lec_priv *priv = netdev_priv(dev);

- priv->lecd = NULL;
+ rcu_assign_pointer(priv->lecd, NULL);
+ synchronize_rcu();
/* Do something needful? */

netif_stop_queue(dev);
lec_arp_destroy(priv);

- if (skb_peek(&sk_atm(vcc)->sk_receive_queue))
- pr_info("%s closing with messages pending\n", dev->name);
- while ((skb = skb_dequeue(&sk_atm(vcc)->sk_receive_queue))) {
- atm_return(vcc, skb->truesize);
- dev_kfree_skb(skb);
- }
-
pr_info("%s: Shut down!\n", dev->name);
module_put(THIS_MODULE);
}
@@ -510,12 +521,14 @@ send_to_lecd(struct lec_priv *priv, atmlec_msg_type type,
const unsigned char *mac_addr, const unsigned char *atm_addr,
struct sk_buff *data)
{
+ struct atm_vcc *vcc;
struct sock *sk;
struct sk_buff *skb;
struct atmlec_msg *mesg;

- if (!priv || !priv->lecd)
+ if (!priv || !rcu_access_pointer(priv->lecd))
return -1;
+
skb = alloc_skb(sizeof(struct atmlec_msg), GFP_ATOMIC);
if (!skb)
return -1;
@@ -532,18 +545,27 @@ send_to_lecd(struct lec_priv *priv, atmlec_msg_type type,
if (atm_addr)
memcpy(&mesg->content.normal.atm_addr, atm_addr, ATM_ESA_LEN);

- atm_force_charge(priv->lecd, skb->truesize);
- sk = sk_atm(priv->lecd);
+ rcu_read_lock();
+ vcc = rcu_dereference(priv->lecd);
+ if (!vcc) {
+ rcu_read_unlock();
+ kfree_skb(skb);
+ return -1;
+ }
+
+ atm_force_charge(vcc, skb->truesize);
+ sk = sk_atm(vcc);
skb_queue_tail(&sk->sk_receive_queue, skb);
sk->sk_data_ready(sk);

if (data != NULL) {
pr_debug("about to send %d bytes of data\n", data->len);
- atm_force_charge(priv->lecd, data->truesize);
+ atm_force_charge(vcc, data->truesize);
skb_queue_tail(&sk->sk_receive_queue, data);
sk->sk_data_ready(sk);
}

+ rcu_read_unlock();
return 0;
}

@@ -618,7 +640,7 @@ static void lec_push(struct atm_vcc *vcc, struct sk_buff *skb)

atm_return(vcc, skb->truesize);
if (*(__be16 *) skb->data == htons(priv->lecid) ||
- !priv->lecd || !(dev->flags & IFF_UP)) {
+ !rcu_access_pointer(priv->lecd) || !(dev->flags & IFF_UP)) {
/*
* Probably looping back, or if lecd is missing,
* lecd has gone down
@@ -753,12 +775,12 @@ static int lecd_attach(struct atm_vcc *vcc, int arg)
priv = netdev_priv(dev_lec[i]);
} else {
priv = netdev_priv(dev_lec[i]);
- if (priv->lecd)
+ if (rcu_access_pointer(priv->lecd))
return -EADDRINUSE;
}
lec_arp_init(priv);
priv->itfnum = i; /* LANE2 addition */
- priv->lecd = vcc;
+ rcu_assign_pointer(priv->lecd, vcc);
vcc->dev = &lecatm_dev;
vcc_insert_socket(sk_atm(vcc));

diff --git a/net/atm/lec.h b/net/atm/lec.h
index be0e2667bd8c..ec85709bf818 100644
--- a/net/atm/lec.h
+++ b/net/atm/lec.h
@@ -91,7 +91,7 @@ struct lec_priv {
*/
spinlock_t lec_arp_lock;
struct atm_vcc *mcast_vcc; /* Default Multicast Send VCC */
- struct atm_vcc *lecd;
+ struct atm_vcc __rcu *lecd;
struct delayed_work lec_arp_work; /* C10 */
unsigned int maximum_unknown_frame_count;
/*
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 4aa445e7f56b..8b184839b013 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -6555,25 +6555,31 @@ static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data,
latency = le16_to_cpu(ev->latency);
timeout = le16_to_cpu(ev->timeout);

+ hci_dev_lock(hdev);
+
hcon = hci_conn_hash_lookup_handle(hdev, handle);
- if (!hcon || hcon->state != BT_CONNECTED)
- return send_conn_param_neg_reply(hdev, handle,
- HCI_ERROR_UNKNOWN_CONN_ID);
+ if (!hcon || hcon->state != BT_CONNECTED) {
+ send_conn_param_neg_reply(hdev, handle,
+ HCI_ERROR_UNKNOWN_CONN_ID);
+ goto unlock;
+ }

- if (max > hcon->le_conn_max_interval)
- return send_conn_param_neg_reply(hdev, handle,
- HCI_ERROR_INVALID_LL_PARAMS);
+ if (max > hcon->le_conn_max_interval) {
+ send_conn_param_neg_reply(hdev, handle,
+ HCI_ERROR_INVALID_LL_PARAMS);
+ goto unlock;
+ }

- if (hci_check_conn_params(min, max, latency, timeout))
- return send_conn_param_neg_reply(hdev, handle,
- HCI_ERROR_INVALID_LL_PARAMS);
+ if (hci_check_conn_params(min, max, latency, timeout)) {
+ send_conn_param_neg_reply(hdev, handle,
+ HCI_ERROR_INVALID_LL_PARAMS);
+ goto unlock;
+ }

if (hcon->role == HCI_ROLE_MASTER) {
struct hci_conn_params *params;
u8 store_hint;

- hci_dev_lock(hdev);
-
params = hci_conn_params_lookup(hdev, &hcon->dst,
hcon->dst_type);
if (params) {
@@ -6586,8 +6592,6 @@ static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data,
store_hint = 0x00;
}

- hci_dev_unlock(hdev);
-
mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
store_hint, min, max, latency, timeout);
}
@@ -6601,6 +6605,9 @@ static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data,
cp.max_ce_len = 0;

hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
+
+unlock:
+ hci_dev_unlock(hdev);
}

static void hci_le_direct_adv_report_evt(struct hci_dev *hdev, void *data,
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index c1c9d82faa65..a41cfc76e98b 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -825,8 +825,15 @@ int hci_cmd_sync_run(struct hci_dev *hdev, hci_cmd_sync_work_func_t func,
return -ENETDOWN;

/* If on cmd_sync_work then run immediately otherwise queue */
- if (current_work() == &hdev->cmd_sync_work)
- return func(hdev, data);
+ if (current_work() == &hdev->cmd_sync_work) {
+ int err;
+
+ err = func(hdev, data);
+ if (destroy)
+ destroy(hdev, data, err);
+
+ return 0;
+ }

return hci_cmd_sync_submit(hdev, func, data, destroy);
}
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 7de0a0d75262..51a6ad6a36c8 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2388,6 +2388,7 @@ static int mesh_send(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
struct mgmt_mesh_tx *mesh_tx;
struct mgmt_cp_mesh_send *send = data;
struct mgmt_rp_mesh_read_features rp;
+ u16 expected_len;
bool sending;
int err = 0;

@@ -2395,12 +2396,19 @@ static int mesh_send(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
!hci_dev_test_flag(hdev, HCI_MESH_EXPERIMENTAL))
return mgmt_cmd_status(sk, hdev->id, MGMT_OP_MESH_SEND,
MGMT_STATUS_NOT_SUPPORTED);
- if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED) ||
- len <= MGMT_MESH_SEND_SIZE ||
- len > (MGMT_MESH_SEND_SIZE + 31))
+ if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
return mgmt_cmd_status(sk, hdev->id, MGMT_OP_MESH_SEND,
MGMT_STATUS_REJECTED);

+ if (!send->adv_data_len || send->adv_data_len > 31)
+ return mgmt_cmd_status(sk, hdev->id, MGMT_OP_MESH_SEND,
+ MGMT_STATUS_REJECTED);
+
+ expected_len = struct_size(send, adv_data, send->adv_data_len);
+ if (expected_len != len)
+ return mgmt_cmd_status(sk, hdev->id, MGMT_OP_MESH_SEND,
+ MGMT_STATUS_INVALID_PARAMS);
+
hci_dev_lock(hdev);

memset(&rp, 0, sizeof(rp));
@@ -7145,6 +7153,9 @@ static bool ltk_is_valid(struct mgmt_ltk_info *key)
if (key->initiator != 0x00 && key->initiator != 0x01)
return false;

+ if (key->enc_size > sizeof(key->val))
+ return false;
+
switch (key->addr.type) {
case BDADDR_LE_PUBLIC:
return true;
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 56a146515df9..1c9c54f35988 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -238,7 +238,7 @@ static int sco_chan_add(struct sco_conn *conn, struct sock *sk,
int err = 0;

sco_conn_lock(conn);
- if (conn->sk)
+ if (conn->sk || sco_pi(sk)->conn)
err = -EBUSY;
else
__sco_chan_add(conn, sk, parent);
@@ -292,9 +292,20 @@ static int sco_connect(struct sock *sk)

lock_sock(sk);

+ /* Recheck state after reacquiring the socket lock, as another
+ * thread may have changed it (e.g., closed the socket).
+ */
+ if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND) {
+ release_sock(sk);
+ hci_conn_drop(hcon);
+ err = -EBADFD;
+ goto unlock;
+ }
+
err = sco_chan_add(conn, sk, NULL);
if (err) {
release_sock(sk);
+ hci_conn_drop(hcon);
goto unlock;
}

@@ -601,13 +612,18 @@ static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen
addr->sa_family != AF_BLUETOOTH)
return -EINVAL;

- if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND)
+ lock_sock(sk);
+
+ if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND) {
+ release_sock(sk);
return -EBADFD;
+ }

- if (sk->sk_type != SOCK_SEQPACKET)
- err = -EINVAL;
+ if (sk->sk_type != SOCK_SEQPACKET) {
+ release_sock(sk);
+ return -EINVAL;
+ }

- lock_sock(sk);
/* Set destination address and psm */
bacpy(&sco_pi(sk)->dst, &sa->sco_bdaddr);
release_sock(sk);
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 62c8eab1b84a..6fabc76aa9d7 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -1019,10 +1019,7 @@ static u8 smp_random(struct smp_chan *smp)

smp_s1(smp->tk, smp->prnd, smp->rrnd, stk);

- if (hcon->pending_sec_level == BT_SECURITY_HIGH)
- auth = 1;
- else
- auth = 0;
+ auth = test_bit(SMP_FLAG_MITM_AUTH, &smp->flags) ? 1 : 0;

/* Even though there's no _RESPONDER suffix this is the
* responder STK we're adding for later lookup (the initiator
@@ -1827,7 +1824,7 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
if (sec_level > conn->hcon->pending_sec_level)
conn->hcon->pending_sec_level = sec_level;

- /* If we need MITM check that it can be achieved */
+ /* If we need MITM check that it can be achieved. */
if (conn->hcon->pending_sec_level >= BT_SECURITY_HIGH) {
u8 method;

@@ -1835,6 +1832,10 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
req->io_capability);
if (method == JUST_WORKS || method == JUST_CFM)
return SMP_AUTH_REQUIREMENTS;
+
+ /* Force MITM bit if it isn't set by the initiator. */
+ auth |= SMP_AUTH_MITM;
+ rsp.auth_req |= SMP_AUTH_MITM;
}

key_size = min(req->max_key_size, rsp.max_key_size);
diff --git a/net/bridge/br_arp_nd_proxy.c b/net/bridge/br_arp_nd_proxy.c
index c7869a286df4..f033a5167560 100644
--- a/net/bridge/br_arp_nd_proxy.c
+++ b/net/bridge/br_arp_nd_proxy.c
@@ -248,12 +248,12 @@ struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *msg)

static void br_nd_send(struct net_bridge *br, struct net_bridge_port *p,
struct sk_buff *request, struct neighbour *n,
- __be16 vlan_proto, u16 vlan_tci, struct nd_msg *ns)
+ __be16 vlan_proto, u16 vlan_tci)
{
struct net_device *dev = request->dev;
struct net_bridge_vlan_group *vg;
+ struct nd_msg *na, *ns;
struct sk_buff *reply;
- struct nd_msg *na;
struct ipv6hdr *pip6;
int na_olen = 8; /* opt hdr + ETH_ALEN for target */
int ns_olen;
@@ -261,7 +261,7 @@ static void br_nd_send(struct net_bridge *br, struct net_bridge_port *p,
u8 *daddr;
u16 pvid;

- if (!dev)
+ if (!dev || skb_linearize(request))
return;

len = LL_RESERVED_SPACE(dev) + sizeof(struct ipv6hdr) +
@@ -278,17 +278,21 @@ static void br_nd_send(struct net_bridge *br, struct net_bridge_port *p,
skb_set_mac_header(reply, 0);

daddr = eth_hdr(request)->h_source;
+ ns = (struct nd_msg *)(skb_network_header(request) +
+ sizeof(struct ipv6hdr));

/* Do we need option processing ? */
ns_olen = request->len - (skb_network_offset(request) +
sizeof(struct ipv6hdr)) - sizeof(*ns);
for (i = 0; i < ns_olen - 1; i += (ns->opt[i + 1] << 3)) {
- if (!ns->opt[i + 1]) {
+ if (!ns->opt[i + 1] || i + (ns->opt[i + 1] << 3) > ns_olen) {
kfree_skb(reply);
return;
}
if (ns->opt[i] == ND_OPT_SOURCE_LL_ADDR) {
- daddr = ns->opt + i + sizeof(struct nd_opt_hdr);
+ if ((ns->opt[i + 1] << 3) >=
+ sizeof(struct nd_opt_hdr) + ETH_ALEN)
+ daddr = ns->opt + i + sizeof(struct nd_opt_hdr);
break;
}
}
@@ -465,9 +469,9 @@ void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br,
if (vid != 0)
br_nd_send(br, p, skb, n,
skb->vlan_proto,
- skb_vlan_tag_get(skb), msg);
+ skb_vlan_tag_get(skb));
else
- br_nd_send(br, p, skb, n, 0, 0, msg);
+ br_nd_send(br, p, skb, n, 0, 0);
replied = true;
}

diff --git a/net/core/dev.c b/net/core/dev.c
index 56b6797589f5..405b448bd91f 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3535,6 +3535,22 @@ static netdev_features_t dflt_features_check(struct sk_buff *skb,
return vlan_features_check(skb, features);
}

+static bool skb_gso_has_extension_hdr(const struct sk_buff *skb)
+{
+ if (!skb->encapsulation)
+ return ((skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6 ||
+ (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4 &&
+ vlan_get_protocol(skb) == htons(ETH_P_IPV6))) &&
+ skb_transport_header_was_set(skb) &&
+ skb_network_header_len(skb) != sizeof(struct ipv6hdr));
+ else
+ return (!skb_inner_network_header_was_set(skb) ||
+ ((skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6 ||
+ (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4 &&
+ inner_ip_hdr(skb)->version == 6)) &&
+ skb_inner_network_header_len(skb) != sizeof(struct ipv6hdr)));
+}
+
static netdev_features_t gso_features_check(const struct sk_buff *skb,
struct net_device *dev,
netdev_features_t features)
@@ -3576,11 +3592,7 @@ static netdev_features_t gso_features_check(const struct sk_buff *skb,
* so neither does TSO that depends on it.
*/
if (features & NETIF_F_IPV6_CSUM &&
- (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6 ||
- (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4 &&
- vlan_get_protocol(skb) == htons(ETH_P_IPV6))) &&
- skb_transport_header_was_set(skb) &&
- skb_network_header_len(skb) != sizeof(struct ipv6hdr) &&
+ skb_gso_has_extension_hdr(skb) &&
!ipv6_has_hopopt_jumbo(skb))
features &= ~(NETIF_F_IPV6_CSUM | NETIF_F_TSO6 | NETIF_F_GSO_UDP_L4);

diff --git a/net/core/skmsg.c b/net/core/skmsg.c
index 5d557ba9c0cb..e2bba1e86752 100644
--- a/net/core/skmsg.c
+++ b/net/core/skmsg.c
@@ -1266,17 +1266,20 @@ static int sk_psock_verdict_recv(struct sock *sk, struct sk_buff *skb)

static void sk_psock_verdict_data_ready(struct sock *sk)
{
- struct socket *sock = sk->sk_socket;
- const struct proto_ops *ops;
+ const struct proto_ops *ops = NULL;
+ struct socket *sock;
int copied;

trace_sk_data_ready(sk);

- if (unlikely(!sock))
- return;
- ops = READ_ONCE(sock->ops);
+ rcu_read_lock();
+ sock = READ_ONCE(sk->sk_socket);
+ if (likely(sock))
+ ops = READ_ONCE(sock->ops);
+ rcu_read_unlock();
if (!ops || !ops->read_skb)
return;
+
copied = ops->read_skb(sk, sk_psock_verdict_recv);
if (copied >= 0) {
struct sk_psock *psock;
diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
index 70e958caa956..b34a9b680aab 100644
--- a/net/hsr/hsr_device.c
+++ b/net/hsr/hsr_device.c
@@ -473,8 +473,8 @@ static void hsr_change_rx_flags(struct net_device *dev, int change)
static int hsr_ndo_vlan_rx_add_vid(struct net_device *dev,
__be16 proto, u16 vid)
{
- bool is_slave_a_added = false;
- bool is_slave_b_added = false;
+ struct net_device *slave_a_dev = NULL;
+ struct net_device *slave_b_dev = NULL;
struct hsr_port *port;
struct hsr_priv *hsr;
int ret = 0;
@@ -490,33 +490,35 @@ static int hsr_ndo_vlan_rx_add_vid(struct net_device *dev,
switch (port->type) {
case HSR_PT_SLAVE_A:
if (ret) {
- /* clean up Slave-B */
netdev_err(dev, "add vid failed for Slave-A\n");
- if (is_slave_b_added)
- vlan_vid_del(port->dev, proto, vid);
- return ret;
+ goto unwind;
}
-
- is_slave_a_added = true;
+ slave_a_dev = port->dev;
break;
-
case HSR_PT_SLAVE_B:
if (ret) {
- /* clean up Slave-A */
netdev_err(dev, "add vid failed for Slave-B\n");
- if (is_slave_a_added)
- vlan_vid_del(port->dev, proto, vid);
- return ret;
+ goto unwind;
}
-
- is_slave_b_added = true;
+ slave_b_dev = port->dev;
break;
default:
+ if (ret)
+ goto unwind;
break;
}
}

return 0;
+
+unwind:
+ if (slave_a_dev)
+ vlan_vid_del(slave_a_dev, proto, vid);
+
+ if (slave_b_dev)
+ vlan_vid_del(slave_b_dev, proto, vid);
+
+ return ret;
}

static int hsr_ndo_vlan_rx_kill_vid(struct net_device *dev,
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 7fcc68dcf144..32fa6236dacd 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3611,12 +3611,12 @@ static void addrconf_permanent_addr(struct net *net, struct net_device *dev)
if ((ifp->flags & IFA_F_PERMANENT) &&
fixup_permanent_addr(net, idev, ifp) < 0) {
write_unlock_bh(&idev->lock);
- in6_ifa_hold(ifp);
- ipv6_del_addr(ifp);
- write_lock_bh(&idev->lock);

net_info_ratelimited("%s: Failed to add prefix route for address %pI6c; dropping\n",
idev->dev->name, &ifp->addr);
+ in6_ifa_hold(ifp);
+ ipv6_del_addr(ifp);
+ write_lock_bh(&idev->lock);
}
}

diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 41ebc4e57473..c1139f05a794 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -763,6 +763,7 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk,
{
struct in6_pktinfo *src_info;
struct cmsghdr *cmsg;
+ struct ipv6_rt_hdr *orthdr;
struct ipv6_rt_hdr *rthdr;
struct ipv6_opt_hdr *hdr;
struct ipv6_txoptions *opt = ipc6->opt;
@@ -924,9 +925,13 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk,
goto exit_f;
}
if (cmsg->cmsg_type == IPV6_DSTOPTS) {
+ if (opt->dst1opt)
+ opt->opt_flen -= ipv6_optlen(opt->dst1opt);
opt->opt_flen += len;
opt->dst1opt = hdr;
} else {
+ if (opt->dst0opt)
+ opt->opt_nflen -= ipv6_optlen(opt->dst0opt);
opt->opt_nflen += len;
opt->dst0opt = hdr;
}
@@ -969,12 +974,17 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk,
goto exit_f;
}

+ orthdr = opt->srcrt;
+ if (orthdr)
+ opt->opt_nflen -= ((orthdr->hdrlen + 1) << 3);
opt->opt_nflen += len;
opt->srcrt = rthdr;

if (cmsg->cmsg_type == IPV6_2292RTHDR && opt->dst1opt) {
int dsthdrlen = ((opt->dst1opt->hdrlen+1)<<3);

+ if (opt->dst0opt)
+ opt->opt_nflen -= ipv6_optlen(opt->dst0opt);
opt->opt_nflen += dsthdrlen;
opt->dst0opt = opt->dst1opt;
opt->dst1opt = NULL;
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 1d1c56e0e246..0002fe04e040 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -679,6 +679,9 @@ int ip6_err_gen_icmpv6_unreach(struct sk_buff *skb, int nhs, int type,
if (!skb2)
return 1;

+ /* Remove debris left by IPv4 stack. */
+ memset(IP6CB(skb2), 0, sizeof(*IP6CB(skb2)));
+
skb_dst_drop(skb2);
skb_pull(skb2, nhs);
skb_reset_network_header(skb2);
diff --git a/net/ipv6/ioam6.c b/net/ipv6/ioam6.c
index a35b6fdbc93e..a1953cf6131b 100644
--- a/net/ipv6/ioam6.c
+++ b/net/ipv6/ioam6.c
@@ -648,7 +648,7 @@ static void __ioam6_fill_trace_data(struct sk_buff *skb,
struct ioam6_namespace *ns,
struct ioam6_trace_hdr *trace,
struct ioam6_schema *sc,
- u8 sclen, bool is_input)
+ unsigned int sclen, bool is_input)
{
struct timespec64 ts;
ktime_t tstamp;
@@ -878,7 +878,7 @@ void ioam6_fill_trace_data(struct sk_buff *skb,
bool is_input)
{
struct ioam6_schema *sc;
- u8 sclen = 0;
+ unsigned int sclen = 0;

/* Skip if Overflow flag is set
*/
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index b3ca4beb4405..bf909fa69a97 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -133,11 +133,6 @@ static void fl_release(struct ip6_flowlabel *fl)
if (time_after(ttd, fl->expires))
fl->expires = ttd;
ttd = fl->expires;
- if (fl->opt && fl->share == IPV6_FL_S_EXCL) {
- struct ipv6_txoptions *opt = fl->opt;
- fl->opt = NULL;
- kfree(opt);
- }
if (!timer_pending(&ip6_fl_gc_timer) ||
time_after(ip6_fl_gc_timer.expires, ttd))
mod_timer(&ip6_fl_gc_timer, ttd);
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 69cace90ece1..5a2583a82f97 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -601,11 +601,16 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
if (!skb2)
return 0;

+ /* Remove debris left by IPv6 stack. */
+ memset(IPCB(skb2), 0, sizeof(*IPCB(skb2)));
+
skb_dst_drop(skb2);

skb_pull(skb2, offset);
skb_reset_network_header(skb2);
eiph = ip_hdr(skb2);
+ if (eiph->version != 4 || eiph->ihl < 5)
+ goto out;

/* Try to guess incoming interface */
rt = ip_route_output_ports(dev_net(skb->dev), &fl4, NULL, eiph->saddr,
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 80ceb401ecf2..652263e2f2d0 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1216,6 +1216,9 @@ static void ndisc_ra_useropt(struct sk_buff *ra, struct nd_opt_hdr *opt)
ndmsg->nduseropt_icmp_type = icmp6h->icmp6_type;
ndmsg->nduseropt_icmp_code = icmp6h->icmp6_code;
ndmsg->nduseropt_opts_len = opt->nd_opt_len << 3;
+ ndmsg->nduseropt_pad1 = 0;
+ ndmsg->nduseropt_pad2 = 0;
+ ndmsg->nduseropt_pad3 = 0;

memcpy(ndmsg + 1, opt, opt->nd_opt_len << 3);

diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index 91aaf4bd43ea..269e95c8415f 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -1189,7 +1189,7 @@ static struct lock_class_key mptcp_keys[2];
static int mptcp_pm_nl_create_listen_socket(struct sock *sk,
struct mptcp_pm_addr_entry *entry)
{
- bool is_ipv6 = sk->sk_family == AF_INET6;
+ bool is_ipv6 = entry->addr.family == AF_INET6;
int addrlen = sizeof(struct sockaddr_in);
struct sockaddr_storage addr;
struct sock *newsk, *ssk;
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index cc20e6d56807..a4e1d7951b2c 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -821,7 +821,7 @@ EXPORT_SYMBOL_GPL(ip_set_del);
*
*/
ip_set_id_t
-ip_set_get_byname(struct net *net, const char *name, struct ip_set **set)
+ip_set_get_byname(struct net *net, const struct nlattr *name, struct ip_set **set)
{
ip_set_id_t i, index = IPSET_INVALID_ID;
struct ip_set *s;
@@ -830,7 +830,7 @@ ip_set_get_byname(struct net *net, const char *name, struct ip_set **set)
rcu_read_lock();
for (i = 0; i < inst->ip_set_max; i++) {
s = rcu_dereference(inst->ip_set_list)[i];
- if (s && STRNCMP(s->name, name)) {
+ if (s && nla_strcmp(name, s->name) == 0) {
__ip_set_get(s);
index = i;
*set = s;
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 20b223e6e93b..9da942070321 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -1098,7 +1098,7 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
if (!test_bit(i, n->used))
k++;
}
- if (n->pos == 0 && k == 0) {
+ if (k == n->pos) {
t->hregion[r].ext_size -= ext_size(n->size, dsize);
rcu_assign_pointer(hbucket(t, key), NULL);
kfree_rcu(n, rcu);
diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index db794fe1300e..83e1fdcc752d 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -367,7 +367,7 @@ list_set_uadt(struct ip_set *set, struct nlattr *tb[],
ret = ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
- e.id = ip_set_get_byname(map->net, nla_data(tb[IPSET_ATTR_NAME]), &s);
+ e.id = ip_set_get_byname(map->net, tb[IPSET_ATTR_NAME], &s);
if (e.id == IPSET_INVALID_ID)
return -IPSET_ERR_NAME;
/* "Loop detection" */
@@ -389,7 +389,7 @@ list_set_uadt(struct ip_set *set, struct nlattr *tb[],

if (tb[IPSET_ATTR_NAMEREF]) {
e.refid = ip_set_get_byname(map->net,
- nla_data(tb[IPSET_ATTR_NAMEREF]),
+ tb[IPSET_ATTR_NAMEREF],
&s);
if (e.refid == IPSET_INVALID_ID) {
ret = -IPSET_ERR_NAMEREF;
diff --git a/net/netfilter/nf_conntrack_broadcast.c b/net/netfilter/nf_conntrack_broadcast.c
index 9fb9b8031298..d44d9379a8a0 100644
--- a/net/netfilter/nf_conntrack_broadcast.c
+++ b/net/netfilter/nf_conntrack_broadcast.c
@@ -21,6 +21,7 @@ int nf_conntrack_broadcast_help(struct sk_buff *skb,
unsigned int timeout)
{
const struct nf_conntrack_helper *helper;
+ struct net *net = read_pnet(&ct->ct_net);
struct nf_conntrack_expect *exp;
struct iphdr *iph = ip_hdr(skb);
struct rtable *rt = skb_rtable(skb);
@@ -70,8 +71,11 @@ int nf_conntrack_broadcast_help(struct sk_buff *skb,
exp->expectfn = NULL;
exp->flags = NF_CT_EXPECT_PERMANENT;
exp->class = NF_CT_EXPECT_CLASS_DEFAULT;
- exp->helper = NULL;
-
+ rcu_assign_pointer(exp->helper, helper);
+ write_pnet(&exp->net, net);
+#ifdef CONFIG_NF_CONNTRACK_ZONES
+ exp->zone = ct->zone;
+#endif
nf_ct_expect_related(exp, 0);
nf_ct_expect_put(exp);

diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c
index 7bc64eb89bac..70bcddfc17cc 100644
--- a/net/netfilter/nf_conntrack_expect.c
+++ b/net/netfilter/nf_conntrack_expect.c
@@ -112,8 +112,8 @@ nf_ct_exp_equal(const struct nf_conntrack_tuple *tuple,
const struct net *net)
{
return nf_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask) &&
- net_eq(net, nf_ct_net(i->master)) &&
- nf_ct_zone_equal_any(i->master, zone);
+ net_eq(net, read_pnet(&i->net)) &&
+ nf_ct_exp_zone_equal_any(i, zone);
}

bool nf_ct_remove_expect(struct nf_conntrack_expect *exp)
@@ -309,12 +309,20 @@ struct nf_conntrack_expect *nf_ct_expect_alloc(struct nf_conn *me)
}
EXPORT_SYMBOL_GPL(nf_ct_expect_alloc);

+/* This function can only be used from packet path, where accessing
+ * master's helper is safe, because the packet holds a reference on
+ * the conntrack object. Never use it from control plane.
+ */
void nf_ct_expect_init(struct nf_conntrack_expect *exp, unsigned int class,
u_int8_t family,
const union nf_inet_addr *saddr,
const union nf_inet_addr *daddr,
u_int8_t proto, const __be16 *src, const __be16 *dst)
{
+ struct nf_conntrack_helper *helper = NULL;
+ struct nf_conn *ct = exp->master;
+ struct net *net = read_pnet(&ct->ct_net);
+ struct nf_conn_help *help;
int len;

if (family == AF_INET)
@@ -325,7 +333,16 @@ void nf_ct_expect_init(struct nf_conntrack_expect *exp, unsigned int class,
exp->flags = 0;
exp->class = class;
exp->expectfn = NULL;
- exp->helper = NULL;
+
+ help = nfct_help(ct);
+ if (help)
+ helper = rcu_dereference(help->helper);
+
+ rcu_assign_pointer(exp->helper, helper);
+ write_pnet(&exp->net, net);
+#ifdef CONFIG_NF_CONNTRACK_ZONES
+ exp->zone = ct->zone;
+#endif
exp->tuple.src.l3num = family;
exp->tuple.dst.protonum = proto;

@@ -658,7 +675,7 @@ static int exp_seq_show(struct seq_file *s, void *v)
if (expect->flags & NF_CT_EXPECT_USERSPACE)
seq_printf(s, "%sUSERSPACE", delim);

- helper = rcu_dereference(nfct_help(expect->master)->helper);
+ helper = rcu_dereference(expect->helper);
if (helper) {
seq_printf(s, "%s%s", expect->flags ? " " : "", helper->name);
if (helper->expect_policy[expect->class].name[0])
diff --git a/net/netfilter/nf_conntrack_h323_main.c b/net/netfilter/nf_conntrack_h323_main.c
index ed983421e2eb..791aafe9f396 100644
--- a/net/netfilter/nf_conntrack_h323_main.c
+++ b/net/netfilter/nf_conntrack_h323_main.c
@@ -642,7 +642,7 @@ static int expect_h245(struct sk_buff *skb, struct nf_conn *ct,
&ct->tuplehash[!dir].tuple.src.u3,
&ct->tuplehash[!dir].tuple.dst.u3,
IPPROTO_TCP, NULL, &port);
- exp->helper = &nf_conntrack_helper_h245;
+ rcu_assign_pointer(exp->helper, &nf_conntrack_helper_h245);

nathook = rcu_dereference(nfct_h323_nat_hook);
if (memcmp(&ct->tuplehash[dir].tuple.src.u3,
@@ -766,7 +766,7 @@ static int expect_callforwarding(struct sk_buff *skb,
nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, nf_ct_l3num(ct),
&ct->tuplehash[!dir].tuple.src.u3, &addr,
IPPROTO_TCP, NULL, &port);
- exp->helper = nf_conntrack_helper_q931;
+ rcu_assign_pointer(exp->helper, nf_conntrack_helper_q931);

nathook = rcu_dereference(nfct_h323_nat_hook);
if (memcmp(&ct->tuplehash[dir].tuple.src.u3,
@@ -1233,7 +1233,7 @@ static int expect_q931(struct sk_buff *skb, struct nf_conn *ct,
&ct->tuplehash[!dir].tuple.src.u3 : NULL,
&ct->tuplehash[!dir].tuple.dst.u3,
IPPROTO_TCP, NULL, &port);
- exp->helper = nf_conntrack_helper_q931;
+ rcu_assign_pointer(exp->helper, nf_conntrack_helper_q931);
exp->flags = NF_CT_EXPECT_PERMANENT; /* Accept multiple calls */

nathook = rcu_dereference(nfct_h323_nat_hook);
@@ -1305,7 +1305,7 @@ static int process_gcf(struct sk_buff *skb, struct nf_conn *ct,
nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, nf_ct_l3num(ct),
&ct->tuplehash[!dir].tuple.src.u3, &addr,
IPPROTO_UDP, NULL, &port);
- exp->helper = nf_conntrack_helper_ras;
+ rcu_assign_pointer(exp->helper, nf_conntrack_helper_ras);

if (nf_ct_expect_related(exp, 0) == 0) {
pr_debug("nf_ct_ras: expect RAS ");
@@ -1522,7 +1522,7 @@ static int process_acf(struct sk_buff *skb, struct nf_conn *ct,
&ct->tuplehash[!dir].tuple.src.u3, &addr,
IPPROTO_TCP, NULL, &port);
exp->flags = NF_CT_EXPECT_PERMANENT;
- exp->helper = nf_conntrack_helper_q931;
+ rcu_assign_pointer(exp->helper, nf_conntrack_helper_q931);

if (nf_ct_expect_related(exp, 0) == 0) {
pr_debug("nf_ct_ras: expect Q.931 ");
@@ -1576,7 +1576,7 @@ static int process_lcf(struct sk_buff *skb, struct nf_conn *ct,
&ct->tuplehash[!dir].tuple.src.u3, &addr,
IPPROTO_TCP, NULL, &port);
exp->flags = NF_CT_EXPECT_PERMANENT;
- exp->helper = nf_conntrack_helper_q931;
+ rcu_assign_pointer(exp->helper, nf_conntrack_helper_q931);

if (nf_ct_expect_related(exp, 0) == 0) {
pr_debug("nf_ct_ras: expect Q.931 ");
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index 10f72b5b4e1a..7d5e4f67f268 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -400,14 +400,10 @@ EXPORT_SYMBOL_GPL(nf_conntrack_helper_register);

static bool expect_iter_me(struct nf_conntrack_expect *exp, void *data)
{
- struct nf_conn_help *help = nfct_help(exp->master);
const struct nf_conntrack_helper *me = data;
const struct nf_conntrack_helper *this;

- if (exp->helper == me)
- return true;
-
- this = rcu_dereference_protected(help->helper,
+ this = rcu_dereference_protected(exp->helper,
lockdep_is_held(&nf_conntrack_expect_lock));
return this == me;
}
@@ -424,8 +420,13 @@ void nf_conntrack_helper_unregister(struct nf_conntrack_helper *me)
*/
synchronize_rcu();

- nf_ct_expect_iterate_destroy(expect_iter_me, NULL);
+ nf_ct_expect_iterate_destroy(expect_iter_me, me);
nf_ct_iterate_destroy(unhelp, me);
+
+ /* nf_ct_iterate_destroy() does an unconditional synchronize_rcu() as
+ * last step, this ensures rcu readers of exp->helper are done.
+ * No need for another synchronize_rcu() here.
+ */
}
EXPORT_SYMBOL_GPL(nf_conntrack_helper_unregister);

diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 718526867ffd..9b089cdfcd35 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -2624,7 +2624,6 @@ static const struct nla_policy exp_nla_policy[CTA_EXPECT_MAX+1] = {

static struct nf_conntrack_expect *
ctnetlink_alloc_expect(const struct nlattr *const cda[], struct nf_conn *ct,
- struct nf_conntrack_helper *helper,
struct nf_conntrack_tuple *tuple,
struct nf_conntrack_tuple *mask);

@@ -2853,7 +2852,6 @@ ctnetlink_glue_attach_expect(const struct nlattr *attr, struct nf_conn *ct,
{
struct nlattr *cda[CTA_EXPECT_MAX+1];
struct nf_conntrack_tuple tuple, mask;
- struct nf_conntrack_helper *helper = NULL;
struct nf_conntrack_expect *exp;
int err;

@@ -2867,17 +2865,8 @@ ctnetlink_glue_attach_expect(const struct nlattr *attr, struct nf_conn *ct,
if (err < 0)
return err;

- if (cda[CTA_EXPECT_HELP_NAME]) {
- const char *helpname = nla_data(cda[CTA_EXPECT_HELP_NAME]);
-
- helper = __nf_conntrack_helper_find(helpname, nf_ct_l3num(ct),
- nf_ct_protonum(ct));
- if (helper == NULL)
- return -EOPNOTSUPP;
- }
-
exp = ctnetlink_alloc_expect((const struct nlattr * const *)cda, ct,
- helper, &tuple, &mask);
+ &tuple, &mask);
if (IS_ERR(exp))
return PTR_ERR(exp);

@@ -2994,7 +2983,7 @@ ctnetlink_exp_dump_expect(struct sk_buff *skb,
{
struct nf_conn *master = exp->master;
long timeout = ((long)exp->timeout.expires - (long)jiffies) / HZ;
- struct nf_conn_help *help;
+ struct nf_conntrack_helper *helper;
#if IS_ENABLED(CONFIG_NF_NAT)
struct nlattr *nest_parms;
struct nf_conntrack_tuple nat_tuple = {};
@@ -3039,15 +3028,12 @@ ctnetlink_exp_dump_expect(struct sk_buff *skb,
nla_put_be32(skb, CTA_EXPECT_FLAGS, htonl(exp->flags)) ||
nla_put_be32(skb, CTA_EXPECT_CLASS, htonl(exp->class)))
goto nla_put_failure;
- help = nfct_help(master);
- if (help) {
- struct nf_conntrack_helper *helper;

- helper = rcu_dereference(help->helper);
- if (helper &&
- nla_put_string(skb, CTA_EXPECT_HELP_NAME, helper->name))
- goto nla_put_failure;
- }
+ helper = rcu_dereference(exp->helper);
+ if (helper &&
+ nla_put_string(skb, CTA_EXPECT_HELP_NAME, helper->name))
+ goto nla_put_failure;
+
expfn = nf_ct_helper_expectfn_find_by_symbol(exp->expectfn);
if (expfn != NULL &&
nla_put_string(skb, CTA_EXPECT_FN, expfn->name))
@@ -3376,12 +3362,9 @@ static int ctnetlink_get_expect(struct sk_buff *skb,
static bool expect_iter_name(struct nf_conntrack_expect *exp, void *data)
{
struct nf_conntrack_helper *helper;
- const struct nf_conn_help *m_help;
const char *name = data;

- m_help = nfct_help(exp->master);
-
- helper = rcu_dereference(m_help->helper);
+ helper = rcu_dereference(exp->helper);
if (!helper)
return false;

@@ -3512,20 +3495,25 @@ ctnetlink_parse_expect_nat(const struct nlattr *attr,

static struct nf_conntrack_expect *
ctnetlink_alloc_expect(const struct nlattr * const cda[], struct nf_conn *ct,
- struct nf_conntrack_helper *helper,
struct nf_conntrack_tuple *tuple,
struct nf_conntrack_tuple *mask)
{
- u_int32_t class = 0;
+ struct net *net = read_pnet(&ct->ct_net);
+ struct nf_conntrack_helper *helper;
struct nf_conntrack_expect *exp;
struct nf_conn_help *help;
+ u32 class = 0;
int err;

help = nfct_help(ct);
if (!help)
return ERR_PTR(-EOPNOTSUPP);

- if (cda[CTA_EXPECT_CLASS] && helper) {
+ helper = rcu_dereference(help->helper);
+ if (!helper)
+ return ERR_PTR(-EOPNOTSUPP);
+
+ if (cda[CTA_EXPECT_CLASS]) {
class = ntohl(nla_get_be32(cda[CTA_EXPECT_CLASS]));
if (class > helper->expect_class_max)
return ERR_PTR(-EINVAL);
@@ -3555,7 +3543,11 @@ ctnetlink_alloc_expect(const struct nlattr * const cda[], struct nf_conn *ct,

exp->class = class;
exp->master = ct;
- exp->helper = helper;
+ write_pnet(&exp->net, net);
+#ifdef CONFIG_NF_CONNTRACK_ZONES
+ exp->zone = ct->zone;
+#endif
+ rcu_assign_pointer(exp->helper, helper);
exp->tuple = *tuple;
exp->mask.src.u3 = mask->src.u3;
exp->mask.src.u.all = mask->src.u.all;
@@ -3565,6 +3557,12 @@ ctnetlink_alloc_expect(const struct nlattr * const cda[], struct nf_conn *ct,
exp, nf_ct_l3num(ct));
if (err < 0)
goto err_out;
+#if IS_ENABLED(CONFIG_NF_NAT)
+ } else {
+ memset(&exp->saved_addr, 0, sizeof(exp->saved_addr));
+ memset(&exp->saved_proto, 0, sizeof(exp->saved_proto));
+ exp->dir = 0;
+#endif
}
return exp;
err_out:
@@ -3580,7 +3578,6 @@ ctnetlink_create_expect(struct net *net,
{
struct nf_conntrack_tuple tuple, mask, master_tuple;
struct nf_conntrack_tuple_hash *h = NULL;
- struct nf_conntrack_helper *helper = NULL;
struct nf_conntrack_expect *exp;
struct nf_conn *ct;
int err;
@@ -3606,33 +3603,7 @@ ctnetlink_create_expect(struct net *net,
ct = nf_ct_tuplehash_to_ctrack(h);

rcu_read_lock();
- if (cda[CTA_EXPECT_HELP_NAME]) {
- const char *helpname = nla_data(cda[CTA_EXPECT_HELP_NAME]);
-
- helper = __nf_conntrack_helper_find(helpname, u3,
- nf_ct_protonum(ct));
- if (helper == NULL) {
- rcu_read_unlock();
-#ifdef CONFIG_MODULES
- if (request_module("nfct-helper-%s", helpname) < 0) {
- err = -EOPNOTSUPP;
- goto err_ct;
- }
- rcu_read_lock();
- helper = __nf_conntrack_helper_find(helpname, u3,
- nf_ct_protonum(ct));
- if (helper) {
- err = -EAGAIN;
- goto err_rcu;
- }
- rcu_read_unlock();
-#endif
- err = -EOPNOTSUPP;
- goto err_ct;
- }
- }
-
- exp = ctnetlink_alloc_expect(cda, ct, helper, &tuple, &mask);
+ exp = ctnetlink_alloc_expect(cda, ct, &tuple, &mask);
if (IS_ERR(exp)) {
err = PTR_ERR(exp);
goto err_rcu;
@@ -3642,8 +3613,8 @@ ctnetlink_create_expect(struct net *net,
nf_ct_expect_put(exp);
err_rcu:
rcu_read_unlock();
-err_ct:
nf_ct_put(ct);
+
return err;
}

diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c
index 84334537c606..fda6fc1fc4c5 100644
--- a/net/netfilter/nf_conntrack_sip.c
+++ b/net/netfilter/nf_conntrack_sip.c
@@ -924,7 +924,7 @@ static int set_expected_rtp_rtcp(struct sk_buff *skb, unsigned int protoff,
exp = __nf_ct_expect_find(net, nf_ct_zone(ct), &tuple);

if (!exp || exp->master == ct ||
- nfct_help(exp->master)->helper != nfct_help(ct)->helper ||
+ exp->helper != nfct_help(ct)->helper ||
exp->class != class)
break;
#if IS_ENABLED(CONFIG_NF_NAT)
@@ -1303,7 +1303,7 @@ static int process_register_request(struct sk_buff *skb, unsigned int protoff,
nf_ct_expect_init(exp, SIP_EXPECT_SIGNALLING, nf_ct_l3num(ct),
saddr, &daddr, proto, NULL, &port);
exp->timeout.expires = sip_timeout * HZ;
- exp->helper = helper;
+ rcu_assign_pointer(exp->helper, helper);
exp->flags = NF_CT_EXPECT_PERMANENT | NF_CT_EXPECT_INACTIVE;

hooks = rcu_dereference(nf_nat_sip_hooks);
diff --git a/net/netfilter/nf_flow_table_offload.c b/net/netfilter/nf_flow_table_offload.c
index 3d46372b538e..7136eed46986 100644
--- a/net/netfilter/nf_flow_table_offload.c
+++ b/net/netfilter/nf_flow_table_offload.c
@@ -13,6 +13,8 @@
#include <net/netfilter/nf_conntrack_core.h>
#include <net/netfilter/nf_conntrack_tuple.h>

+#define NF_FLOW_RULE_ACTION_MAX 24
+
static struct workqueue_struct *nf_flow_offload_add_wq;
static struct workqueue_struct *nf_flow_offload_del_wq;
static struct workqueue_struct *nf_flow_offload_stats_wq;
@@ -215,7 +217,12 @@ static void flow_offload_mangle(struct flow_action_entry *entry,
static inline struct flow_action_entry *
flow_action_entry_next(struct nf_flow_rule *flow_rule)
{
- int i = flow_rule->rule->action.num_entries++;
+ int i;
+
+ if (unlikely(flow_rule->rule->action.num_entries >= NF_FLOW_RULE_ACTION_MAX))
+ return NULL;
+
+ i = flow_rule->rule->action.num_entries++;

return &flow_rule->rule->action.entries[i];
}
@@ -233,6 +240,9 @@ static int flow_offload_eth_src(struct net *net,
u32 mask, val;
u16 val16;

+ if (!entry0 || !entry1)
+ return -E2BIG;
+
this_tuple = &flow->tuplehash[dir].tuple;

switch (this_tuple->xmit_type) {
@@ -283,6 +293,9 @@ static int flow_offload_eth_dst(struct net *net,
u8 nud_state;
u16 val16;

+ if (!entry0 || !entry1)
+ return -E2BIG;
+
this_tuple = &flow->tuplehash[dir].tuple;

switch (this_tuple->xmit_type) {
@@ -324,16 +337,19 @@ static int flow_offload_eth_dst(struct net *net,
return 0;
}

-static void flow_offload_ipv4_snat(struct net *net,
- const struct flow_offload *flow,
- enum flow_offload_tuple_dir dir,
- struct nf_flow_rule *flow_rule)
+static int flow_offload_ipv4_snat(struct net *net,
+ const struct flow_offload *flow,
+ enum flow_offload_tuple_dir dir,
+ struct nf_flow_rule *flow_rule)
{
struct flow_action_entry *entry = flow_action_entry_next(flow_rule);
u32 mask = ~htonl(0xffffffff);
__be32 addr;
u32 offset;

+ if (!entry)
+ return -E2BIG;
+
switch (dir) {
case FLOW_OFFLOAD_DIR_ORIGINAL:
addr = flow->tuplehash[FLOW_OFFLOAD_DIR_REPLY].tuple.dst_v4.s_addr;
@@ -344,23 +360,27 @@ static void flow_offload_ipv4_snat(struct net *net,
offset = offsetof(struct iphdr, daddr);
break;
default:
- return;
+ return -EOPNOTSUPP;
}

flow_offload_mangle(entry, FLOW_ACT_MANGLE_HDR_TYPE_IP4, offset,
&addr, &mask);
+ return 0;
}

-static void flow_offload_ipv4_dnat(struct net *net,
- const struct flow_offload *flow,
- enum flow_offload_tuple_dir dir,
- struct nf_flow_rule *flow_rule)
+static int flow_offload_ipv4_dnat(struct net *net,
+ const struct flow_offload *flow,
+ enum flow_offload_tuple_dir dir,
+ struct nf_flow_rule *flow_rule)
{
struct flow_action_entry *entry = flow_action_entry_next(flow_rule);
u32 mask = ~htonl(0xffffffff);
__be32 addr;
u32 offset;

+ if (!entry)
+ return -E2BIG;
+
switch (dir) {
case FLOW_OFFLOAD_DIR_ORIGINAL:
addr = flow->tuplehash[FLOW_OFFLOAD_DIR_REPLY].tuple.src_v4.s_addr;
@@ -371,14 +391,15 @@ static void flow_offload_ipv4_dnat(struct net *net,
offset = offsetof(struct iphdr, saddr);
break;
default:
- return;
+ return -EOPNOTSUPP;
}

flow_offload_mangle(entry, FLOW_ACT_MANGLE_HDR_TYPE_IP4, offset,
&addr, &mask);
+ return 0;
}

-static void flow_offload_ipv6_mangle(struct nf_flow_rule *flow_rule,
+static int flow_offload_ipv6_mangle(struct nf_flow_rule *flow_rule,
unsigned int offset,
const __be32 *addr, const __be32 *mask)
{
@@ -387,15 +408,20 @@ static void flow_offload_ipv6_mangle(struct nf_flow_rule *flow_rule,

for (i = 0; i < sizeof(struct in6_addr) / sizeof(u32); i++) {
entry = flow_action_entry_next(flow_rule);
+ if (!entry)
+ return -E2BIG;
+
flow_offload_mangle(entry, FLOW_ACT_MANGLE_HDR_TYPE_IP6,
offset + i * sizeof(u32), &addr[i], mask);
}
+
+ return 0;
}

-static void flow_offload_ipv6_snat(struct net *net,
- const struct flow_offload *flow,
- enum flow_offload_tuple_dir dir,
- struct nf_flow_rule *flow_rule)
+static int flow_offload_ipv6_snat(struct net *net,
+ const struct flow_offload *flow,
+ enum flow_offload_tuple_dir dir,
+ struct nf_flow_rule *flow_rule)
{
u32 mask = ~htonl(0xffffffff);
const __be32 *addr;
@@ -411,16 +437,16 @@ static void flow_offload_ipv6_snat(struct net *net,
offset = offsetof(struct ipv6hdr, daddr);
break;
default:
- return;
+ return -EOPNOTSUPP;
}

- flow_offload_ipv6_mangle(flow_rule, offset, addr, &mask);
+ return flow_offload_ipv6_mangle(flow_rule, offset, addr, &mask);
}

-static void flow_offload_ipv6_dnat(struct net *net,
- const struct flow_offload *flow,
- enum flow_offload_tuple_dir dir,
- struct nf_flow_rule *flow_rule)
+static int flow_offload_ipv6_dnat(struct net *net,
+ const struct flow_offload *flow,
+ enum flow_offload_tuple_dir dir,
+ struct nf_flow_rule *flow_rule)
{
u32 mask = ~htonl(0xffffffff);
const __be32 *addr;
@@ -436,10 +462,10 @@ static void flow_offload_ipv6_dnat(struct net *net,
offset = offsetof(struct ipv6hdr, saddr);
break;
default:
- return;
+ return -EOPNOTSUPP;
}

- flow_offload_ipv6_mangle(flow_rule, offset, addr, &mask);
+ return flow_offload_ipv6_mangle(flow_rule, offset, addr, &mask);
}

static int flow_offload_l4proto(const struct flow_offload *flow)
@@ -461,15 +487,18 @@ static int flow_offload_l4proto(const struct flow_offload *flow)
return type;
}

-static void flow_offload_port_snat(struct net *net,
- const struct flow_offload *flow,
- enum flow_offload_tuple_dir dir,
- struct nf_flow_rule *flow_rule)
+static int flow_offload_port_snat(struct net *net,
+ const struct flow_offload *flow,
+ enum flow_offload_tuple_dir dir,
+ struct nf_flow_rule *flow_rule)
{
struct flow_action_entry *entry = flow_action_entry_next(flow_rule);
u32 mask, port;
u32 offset;

+ if (!entry)
+ return -E2BIG;
+
switch (dir) {
case FLOW_OFFLOAD_DIR_ORIGINAL:
port = ntohs(flow->tuplehash[FLOW_OFFLOAD_DIR_REPLY].tuple.dst_port);
@@ -484,22 +513,26 @@ static void flow_offload_port_snat(struct net *net,
mask = ~htonl(0xffff);
break;
default:
- return;
+ return -EOPNOTSUPP;
}

flow_offload_mangle(entry, flow_offload_l4proto(flow), offset,
&port, &mask);
+ return 0;
}

-static void flow_offload_port_dnat(struct net *net,
- const struct flow_offload *flow,
- enum flow_offload_tuple_dir dir,
- struct nf_flow_rule *flow_rule)
+static int flow_offload_port_dnat(struct net *net,
+ const struct flow_offload *flow,
+ enum flow_offload_tuple_dir dir,
+ struct nf_flow_rule *flow_rule)
{
struct flow_action_entry *entry = flow_action_entry_next(flow_rule);
u32 mask, port;
u32 offset;

+ if (!entry)
+ return -E2BIG;
+
switch (dir) {
case FLOW_OFFLOAD_DIR_ORIGINAL:
port = ntohs(flow->tuplehash[FLOW_OFFLOAD_DIR_REPLY].tuple.src_port);
@@ -514,20 +547,24 @@ static void flow_offload_port_dnat(struct net *net,
mask = ~htonl(0xffff0000);
break;
default:
- return;
+ return -EOPNOTSUPP;
}

flow_offload_mangle(entry, flow_offload_l4proto(flow), offset,
&port, &mask);
+ return 0;
}

-static void flow_offload_ipv4_checksum(struct net *net,
- const struct flow_offload *flow,
- struct nf_flow_rule *flow_rule)
+static int flow_offload_ipv4_checksum(struct net *net,
+ const struct flow_offload *flow,
+ struct nf_flow_rule *flow_rule)
{
u8 protonum = flow->tuplehash[FLOW_OFFLOAD_DIR_ORIGINAL].tuple.l4proto;
struct flow_action_entry *entry = flow_action_entry_next(flow_rule);

+ if (!entry)
+ return -E2BIG;
+
entry->id = FLOW_ACTION_CSUM;
entry->csum_flags = TCA_CSUM_UPDATE_FLAG_IPV4HDR;

@@ -539,12 +576,14 @@ static void flow_offload_ipv4_checksum(struct net *net,
entry->csum_flags |= TCA_CSUM_UPDATE_FLAG_UDP;
break;
}
+
+ return 0;
}

-static void flow_offload_redirect(struct net *net,
- const struct flow_offload *flow,
- enum flow_offload_tuple_dir dir,
- struct nf_flow_rule *flow_rule)
+static int flow_offload_redirect(struct net *net,
+ const struct flow_offload *flow,
+ enum flow_offload_tuple_dir dir,
+ struct nf_flow_rule *flow_rule)
{
const struct flow_offload_tuple *this_tuple, *other_tuple;
struct flow_action_entry *entry;
@@ -562,21 +601,28 @@ static void flow_offload_redirect(struct net *net,
ifindex = other_tuple->iifidx;
break;
default:
- return;
+ return -EOPNOTSUPP;
}

dev = dev_get_by_index(net, ifindex);
if (!dev)
- return;
+ return -ENODEV;

entry = flow_action_entry_next(flow_rule);
+ if (!entry) {
+ dev_put(dev);
+ return -E2BIG;
+ }
+
entry->id = FLOW_ACTION_REDIRECT;
entry->dev = dev;
+
+ return 0;
}

-static void flow_offload_encap_tunnel(const struct flow_offload *flow,
- enum flow_offload_tuple_dir dir,
- struct nf_flow_rule *flow_rule)
+static int flow_offload_encap_tunnel(const struct flow_offload *flow,
+ enum flow_offload_tuple_dir dir,
+ struct nf_flow_rule *flow_rule)
{
const struct flow_offload_tuple *this_tuple;
struct flow_action_entry *entry;
@@ -584,7 +630,7 @@ static void flow_offload_encap_tunnel(const struct flow_offload *flow,

this_tuple = &flow->tuplehash[dir].tuple;
if (this_tuple->xmit_type == FLOW_OFFLOAD_XMIT_DIRECT)
- return;
+ return 0;

dst = this_tuple->dst_cache;
if (dst && dst->lwtstate) {
@@ -593,15 +639,19 @@ static void flow_offload_encap_tunnel(const struct flow_offload *flow,
tun_info = lwt_tun_info(dst->lwtstate);
if (tun_info && (tun_info->mode & IP_TUNNEL_INFO_TX)) {
entry = flow_action_entry_next(flow_rule);
+ if (!entry)
+ return -E2BIG;
entry->id = FLOW_ACTION_TUNNEL_ENCAP;
entry->tunnel = tun_info;
}
}
+
+ return 0;
}

-static void flow_offload_decap_tunnel(const struct flow_offload *flow,
- enum flow_offload_tuple_dir dir,
- struct nf_flow_rule *flow_rule)
+static int flow_offload_decap_tunnel(const struct flow_offload *flow,
+ enum flow_offload_tuple_dir dir,
+ struct nf_flow_rule *flow_rule)
{
const struct flow_offload_tuple *other_tuple;
struct flow_action_entry *entry;
@@ -609,7 +659,7 @@ static void flow_offload_decap_tunnel(const struct flow_offload *flow,

other_tuple = &flow->tuplehash[!dir].tuple;
if (other_tuple->xmit_type == FLOW_OFFLOAD_XMIT_DIRECT)
- return;
+ return 0;

dst = other_tuple->dst_cache;
if (dst && dst->lwtstate) {
@@ -618,9 +668,13 @@ static void flow_offload_decap_tunnel(const struct flow_offload *flow,
tun_info = lwt_tun_info(dst->lwtstate);
if (tun_info && (tun_info->mode & IP_TUNNEL_INFO_TX)) {
entry = flow_action_entry_next(flow_rule);
+ if (!entry)
+ return -E2BIG;
entry->id = FLOW_ACTION_TUNNEL_DECAP;
}
}
+
+ return 0;
}

static int
@@ -632,8 +686,9 @@ nf_flow_rule_route_common(struct net *net, const struct flow_offload *flow,
const struct flow_offload_tuple *tuple;
int i;

- flow_offload_decap_tunnel(flow, dir, flow_rule);
- flow_offload_encap_tunnel(flow, dir, flow_rule);
+ if (flow_offload_decap_tunnel(flow, dir, flow_rule) < 0 ||
+ flow_offload_encap_tunnel(flow, dir, flow_rule) < 0)
+ return -1;

if (flow_offload_eth_src(net, flow, dir, flow_rule) < 0 ||
flow_offload_eth_dst(net, flow, dir, flow_rule) < 0)
@@ -649,6 +704,8 @@ nf_flow_rule_route_common(struct net *net, const struct flow_offload *flow,

if (tuple->encap[i].proto == htons(ETH_P_8021Q)) {
entry = flow_action_entry_next(flow_rule);
+ if (!entry)
+ return -1;
entry->id = FLOW_ACTION_VLAN_POP;
}
}
@@ -662,6 +719,8 @@ nf_flow_rule_route_common(struct net *net, const struct flow_offload *flow,
continue;

entry = flow_action_entry_next(flow_rule);
+ if (!entry)
+ return -1;

switch (other_tuple->encap[i].proto) {
case htons(ETH_P_PPP_SES):
@@ -687,18 +746,22 @@ int nf_flow_rule_route_ipv4(struct net *net, struct flow_offload *flow,
return -1;

if (test_bit(NF_FLOW_SNAT, &flow->flags)) {
- flow_offload_ipv4_snat(net, flow, dir, flow_rule);
- flow_offload_port_snat(net, flow, dir, flow_rule);
+ if (flow_offload_ipv4_snat(net, flow, dir, flow_rule) < 0 ||
+ flow_offload_port_snat(net, flow, dir, flow_rule) < 0)
+ return -1;
}
if (test_bit(NF_FLOW_DNAT, &flow->flags)) {
- flow_offload_ipv4_dnat(net, flow, dir, flow_rule);
- flow_offload_port_dnat(net, flow, dir, flow_rule);
+ if (flow_offload_ipv4_dnat(net, flow, dir, flow_rule) < 0 ||
+ flow_offload_port_dnat(net, flow, dir, flow_rule) < 0)
+ return -1;
}
if (test_bit(NF_FLOW_SNAT, &flow->flags) ||
test_bit(NF_FLOW_DNAT, &flow->flags))
- flow_offload_ipv4_checksum(net, flow, flow_rule);
+ if (flow_offload_ipv4_checksum(net, flow, flow_rule) < 0)
+ return -1;

- flow_offload_redirect(net, flow, dir, flow_rule);
+ if (flow_offload_redirect(net, flow, dir, flow_rule) < 0)
+ return -1;

return 0;
}
@@ -712,22 +775,23 @@ int nf_flow_rule_route_ipv6(struct net *net, struct flow_offload *flow,
return -1;

if (test_bit(NF_FLOW_SNAT, &flow->flags)) {
- flow_offload_ipv6_snat(net, flow, dir, flow_rule);
- flow_offload_port_snat(net, flow, dir, flow_rule);
+ if (flow_offload_ipv6_snat(net, flow, dir, flow_rule) < 0 ||
+ flow_offload_port_snat(net, flow, dir, flow_rule) < 0)
+ return -1;
}
if (test_bit(NF_FLOW_DNAT, &flow->flags)) {
- flow_offload_ipv6_dnat(net, flow, dir, flow_rule);
- flow_offload_port_dnat(net, flow, dir, flow_rule);
+ if (flow_offload_ipv6_dnat(net, flow, dir, flow_rule) < 0 ||
+ flow_offload_port_dnat(net, flow, dir, flow_rule) < 0)
+ return -1;
}

- flow_offload_redirect(net, flow, dir, flow_rule);
+ if (flow_offload_redirect(net, flow, dir, flow_rule) < 0)
+ return -1;

return 0;
}
EXPORT_SYMBOL_GPL(nf_flow_rule_route_ipv6);

-#define NF_FLOW_RULE_ACTION_MAX 16
-
static struct nf_flow_rule *
nf_flow_offload_rule_alloc(struct net *net,
const struct flow_offload_work *offload,
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index b411abe9743b..0aaddc1131c6 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -11105,8 +11105,6 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,
switch (data->verdict.code) {
case NF_ACCEPT:
case NF_DROP:
- case NF_QUEUE:
- break;
case NFT_CONTINUE:
case NFT_BREAK:
case NFT_RETURN:
@@ -11141,6 +11139,11 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,

data->verdict.chain = chain;
break;
+ case NF_QUEUE:
+ /* The nft_queue expression is used for this purpose, an
+ * immediate NF_QUEUE verdict should not ever be seen here.
+ */
+ fallthrough;
default:
return -EINVAL;
}
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index aa5fc9bffef0..f96421ad14af 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -726,7 +726,7 @@ nfulnl_log_packet(struct net *net,
+ nla_total_size(plen) /* prefix */
+ nla_total_size(sizeof(struct nfulnl_msg_packet_hw))
+ nla_total_size(sizeof(struct nfulnl_msg_packet_timestamp))
- + nla_total_size(sizeof(struct nfgenmsg)); /* NLMSG_DONE */
+ + nlmsg_total_size(sizeof(struct nfgenmsg)); /* NLMSG_DONE */

if (in && skb_mac_header_was_set(skb)) {
size += nla_total_size(skb->dev->hard_header_len)
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index d892afc9a1ac..c1ab85fb8c46 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -501,6 +501,17 @@ int xt_check_match(struct xt_mtchk_param *par,
par->match->table, par->table);
return -EINVAL;
}
+
+ /* NFPROTO_UNSPEC implies NF_INET_* hooks which do not overlap with
+ * NF_ARP_IN,OUT,FORWARD, allow explicit extensions with NFPROTO_ARP
+ * support.
+ */
+ if (par->family == NFPROTO_ARP &&
+ par->match->family != NFPROTO_ARP) {
+ pr_info_ratelimited("%s_tables: %s match: not valid for this family\n",
+ xt_prefix[par->family], par->match->name);
+ return -EINVAL;
+ }
if (par->match->hooks && (par->hook_mask & ~par->match->hooks) != 0) {
char used[64], allow[64];

@@ -1016,6 +1027,18 @@ int xt_check_target(struct xt_tgchk_param *par,
par->target->table, par->table);
return -EINVAL;
}
+
+ /* NFPROTO_UNSPEC implies NF_INET_* hooks which do not overlap with
+ * NF_ARP_IN,OUT,FORWARD, allow explicit extensions with NFPROTO_ARP
+ * support.
+ */
+ if (par->family == NFPROTO_ARP &&
+ par->target->family != NFPROTO_ARP) {
+ pr_info_ratelimited("%s_tables: %s target: not valid for this family\n",
+ xt_prefix[par->family], par->target->name);
+ return -EINVAL;
+ }
+
if (par->target->hooks && (par->hook_mask & ~par->target->hooks) != 0) {
char used[64], allow[64];

diff --git a/net/netfilter/xt_cgroup.c b/net/netfilter/xt_cgroup.c
index c0f5e9a4f3c6..bfc98719684e 100644
--- a/net/netfilter/xt_cgroup.c
+++ b/net/netfilter/xt_cgroup.c
@@ -53,6 +53,9 @@ static int cgroup_mt_check_v1(const struct xt_mtchk_param *par)

info->priv = NULL;
if (info->has_path) {
+ if (strnlen(info->path, sizeof(info->path)) >= sizeof(info->path))
+ return -ENAMETOOLONG;
+
cgrp = cgroup_get_from_path(info->path);
if (IS_ERR(cgrp)) {
pr_info_ratelimited("invalid path, errno=%ld\n",
@@ -85,6 +88,9 @@ static int cgroup_mt_check_v2(const struct xt_mtchk_param *par)

info->priv = NULL;
if (info->has_path) {
+ if (strnlen(info->path, sizeof(info->path)) >= sizeof(info->path))
+ return -ENAMETOOLONG;
+
cgrp = cgroup_get_from_path(info->path);
if (IS_ERR(cgrp)) {
pr_info_ratelimited("invalid path, errno=%ld\n",
diff --git a/net/netfilter/xt_rateest.c b/net/netfilter/xt_rateest.c
index 72324bd976af..b1d736c15fcb 100644
--- a/net/netfilter/xt_rateest.c
+++ b/net/netfilter/xt_rateest.c
@@ -91,6 +91,11 @@ static int xt_rateest_mt_checkentry(const struct xt_mtchk_param *par)
goto err1;
}

+ if (strnlen(info->name1, sizeof(info->name1)) >= sizeof(info->name1))
+ return -ENAMETOOLONG;
+ if (strnlen(info->name2, sizeof(info->name2)) >= sizeof(info->name2))
+ return -ENAMETOOLONG;
+
ret = -ENOENT;
est1 = xt_rateest_lookup(par->net, info->name1);
if (!est1)
diff --git a/net/qrtr/af_qrtr.c b/net/qrtr/af_qrtr.c
index 00c51cf693f3..b703e4c64585 100644
--- a/net/qrtr/af_qrtr.c
+++ b/net/qrtr/af_qrtr.c
@@ -118,7 +118,7 @@ static DEFINE_XARRAY_ALLOC(qrtr_ports);
* @ep: endpoint
* @ref: reference count for node
* @nid: node id
- * @qrtr_tx_flow: tree of qrtr_tx_flow, keyed by node << 32 | port
+ * @qrtr_tx_flow: xarray of qrtr_tx_flow, keyed by node << 32 | port
* @qrtr_tx_lock: lock for qrtr_tx_flow inserts
* @rx_queue: receive queue
* @item: list item for broadcast list
@@ -129,7 +129,7 @@ struct qrtr_node {
struct kref ref;
unsigned int nid;

- struct radix_tree_root qrtr_tx_flow;
+ struct xarray qrtr_tx_flow;
struct mutex qrtr_tx_lock; /* for qrtr_tx_flow */

struct sk_buff_head rx_queue;
@@ -172,6 +172,7 @@ static void __qrtr_node_release(struct kref *kref)
struct qrtr_tx_flow *flow;
unsigned long flags;
void __rcu **slot;
+ unsigned long index;

spin_lock_irqsave(&qrtr_nodes_lock, flags);
/* If the node is a bridge for other nodes, there are possibly
@@ -189,11 +190,9 @@ static void __qrtr_node_release(struct kref *kref)
skb_queue_purge(&node->rx_queue);

/* Free tx flow counters */
- radix_tree_for_each_slot(slot, &node->qrtr_tx_flow, &iter, 0) {
- flow = *slot;
- radix_tree_iter_delete(&node->qrtr_tx_flow, &iter, slot);
+ xa_for_each(&node->qrtr_tx_flow, index, flow)
kfree(flow);
- }
+ xa_destroy(&node->qrtr_tx_flow);
kfree(node);
}

@@ -228,9 +227,7 @@ static void qrtr_tx_resume(struct qrtr_node *node, struct sk_buff *skb)

key = remote_node << 32 | remote_port;

- rcu_read_lock();
- flow = radix_tree_lookup(&node->qrtr_tx_flow, key);
- rcu_read_unlock();
+ flow = xa_load(&node->qrtr_tx_flow, key);
if (flow) {
spin_lock(&flow->resume_tx.lock);
flow->pending = 0;
@@ -269,12 +266,13 @@ static int qrtr_tx_wait(struct qrtr_node *node, int dest_node, int dest_port,
return 0;

mutex_lock(&node->qrtr_tx_lock);
- flow = radix_tree_lookup(&node->qrtr_tx_flow, key);
+ flow = xa_load(&node->qrtr_tx_flow, key);
if (!flow) {
flow = kzalloc(sizeof(*flow), GFP_KERNEL);
if (flow) {
init_waitqueue_head(&flow->resume_tx);
- if (radix_tree_insert(&node->qrtr_tx_flow, key, flow)) {
+ if (xa_err(xa_store(&node->qrtr_tx_flow, key, flow,
+ GFP_KERNEL))) {
kfree(flow);
flow = NULL;
}
@@ -326,9 +324,7 @@ static void qrtr_tx_flow_failed(struct qrtr_node *node, int dest_node,
unsigned long key = (u64)dest_node << 32 | dest_port;
struct qrtr_tx_flow *flow;

- rcu_read_lock();
- flow = radix_tree_lookup(&node->qrtr_tx_flow, key);
- rcu_read_unlock();
+ flow = xa_load(&node->qrtr_tx_flow, key);
if (flow) {
spin_lock_irq(&flow->resume_tx.lock);
flow->tx_failed = 1;
@@ -599,7 +595,7 @@ int qrtr_endpoint_register(struct qrtr_endpoint *ep, unsigned int nid)
node->nid = QRTR_EP_NID_AUTO;
node->ep = ep;

- INIT_RADIX_TREE(&node->qrtr_tx_flow, GFP_KERNEL);
+ xa_init(&node->qrtr_tx_flow);
mutex_init(&node->qrtr_tx_lock);

qrtr_node_assign(node, nid);
@@ -627,6 +623,7 @@ void qrtr_endpoint_unregister(struct qrtr_endpoint *ep)
struct qrtr_tx_flow *flow;
struct sk_buff *skb;
unsigned long flags;
+ unsigned long index;
void __rcu **slot;

mutex_lock(&node->ep_lock);
@@ -649,10 +646,8 @@ void qrtr_endpoint_unregister(struct qrtr_endpoint *ep)

/* Wake up any transmitters waiting for resume-tx from the node */
mutex_lock(&node->qrtr_tx_lock);
- radix_tree_for_each_slot(slot, &node->qrtr_tx_flow, &iter, 0) {
- flow = *slot;
+ xa_for_each(&node->qrtr_tx_flow, index, flow)
wake_up_interruptible_all(&flow->resume_tx);
- }
mutex_unlock(&node->qrtr_tx_lock);

qrtr_node_release(node);
diff --git a/net/rds/ib_rdma.c b/net/rds/ib_rdma.c
index 8f070ee7e742..30fca2169aa7 100644
--- a/net/rds/ib_rdma.c
+++ b/net/rds/ib_rdma.c
@@ -608,8 +608,13 @@ void *rds_ib_get_mr(struct scatterlist *sg, unsigned long nents,
return ibmr;
}

- if (conn)
+ if (conn) {
ic = conn->c_transport_data;
+ if (!ic || !ic->i_cm_id || !ic->i_cm_id->qp) {
+ ret = -ENODEV;
+ goto out;
+ }
+ }

if (!rds_ibdev->mr_8k_pool || !rds_ibdev->mr_1m_pool) {
ret = -ENODEV;
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index a90a7b01f3f3..45124fd64d6b 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -2886,6 +2886,7 @@ static int tc_chain_fill_node(const struct tcf_proto_ops *tmplt_ops,
tcm->tcm__pad1 = 0;
tcm->tcm__pad2 = 0;
tcm->tcm_handle = 0;
+ tcm->tcm_info = 0;
if (block->q) {
tcm->tcm_ifindex = qdisc_dev(block->q)->ifindex;
tcm->tcm_parent = block->q->handle;
diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c
index 815216b564f3..d92ffdaf546c 100644
--- a/net/sched/cls_flow.c
+++ b/net/sched/cls_flow.c
@@ -503,8 +503,16 @@ static int flow_change(struct net *net, struct sk_buff *in_skb,
}

if (TC_H_MAJ(baseclass) == 0) {
- struct Qdisc *q = tcf_block_q(tp->chain->block);
+ struct tcf_block *block = tp->chain->block;
+ struct Qdisc *q;

+ if (tcf_block_shared(block)) {
+ NL_SET_ERR_MSG(extack,
+ "Must specify baseclass when attaching flow filter to block");
+ goto err2;
+ }
+
+ q = tcf_block_q(block);
baseclass = TC_H_MAKE(q->handle, baseclass);
}
if (TC_H_MIN(baseclass) == 0)
diff --git a/net/sched/cls_fw.c b/net/sched/cls_fw.c
index c49d6af0e048..2e5e8df5ca55 100644
--- a/net/sched/cls_fw.c
+++ b/net/sched/cls_fw.c
@@ -247,8 +247,18 @@ static int fw_change(struct net *net, struct sk_buff *in_skb,
struct nlattr *tb[TCA_FW_MAX + 1];
int err;

- if (!opt)
- return handle ? -EINVAL : 0; /* Succeed if it is old method. */
+ if (!opt) {
+ if (handle)
+ return -EINVAL;
+
+ if (tcf_block_shared(tp->chain->block)) {
+ NL_SET_ERR_MSG(extack,
+ "Must specify mark when attaching fw filter to block");
+ return -EINVAL;
+ }
+
+ return 0; /* Succeed if it is old method. */
+ }

err = nla_parse_nested_deprecated(tb, TCA_FW_MAX, opt, fw_policy,
NULL);
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 751b1e2c35b3..1ac51d024991 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -555,7 +555,7 @@ static void
rtsc_min(struct runtime_sc *rtsc, struct internal_sc *isc, u64 x, u64 y)
{
u64 y1, y2, dx, dy;
- u32 dsm;
+ u64 dsm;

if (isc->sm1 <= isc->sm2) {
/* service curve is convex */
@@ -598,7 +598,7 @@ rtsc_min(struct runtime_sc *rtsc, struct internal_sc *isc, u64 x, u64 y)
*/
dx = (y1 - y) << SM_SHIFT;
dsm = isc->sm1 - isc->sm2;
- do_div(dx, dsm);
+ dx = div64_u64(dx, dsm);
/*
* check if (x, y1) belongs to the 1st segment of rtsc.
* if so, add the offset.
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 0ad231e94e14..7361f90c8c1a 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -517,8 +517,9 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
goto finish_segs;
}

- skb->data[get_random_u32_below(skb_headlen(skb))] ^=
- 1<<get_random_u32_below(8);
+ if (skb_headlen(skb))
+ skb->data[get_random_u32_below(skb_headlen(skb))] ^=
+ 1 << get_random_u32_below(8);
}

if (unlikely(q->t_len >= sch->limit)) {
diff --git a/net/x25/x25_in.c b/net/x25/x25_in.c
index b981a4828d08..e47ebd8acd21 100644
--- a/net/x25/x25_in.c
+++ b/net/x25/x25_in.c
@@ -34,6 +34,10 @@ static int x25_queue_rx_frame(struct sock *sk, struct sk_buff *skb, int more)
struct sk_buff *skbo, *skbn = skb;
struct x25_sock *x25 = x25_sk(sk);

+ /* make sure we don't overflow */
+ if (x25->fraglen + skb->len > USHRT_MAX)
+ return 1;
+
if (more) {
x25->fraglen += skb->len;
skb_queue_tail(&x25->fragment_queue, skb);
@@ -44,10 +48,9 @@ static int x25_queue_rx_frame(struct sock *sk, struct sk_buff *skb, int more)
if (x25->fraglen > 0) { /* End of fragment */
int len = x25->fraglen + skb->len;

- if ((skbn = alloc_skb(len, GFP_ATOMIC)) == NULL){
- kfree_skb(skb);
+ skbn = alloc_skb(len, GFP_ATOMIC);
+ if (!skbn)
return 1;
- }

skb_queue_tail(&x25->fragment_queue, skb);

diff --git a/net/x25/x25_subr.c b/net/x25/x25_subr.c
index 0285aaa1e93c..159708d9ad20 100644
--- a/net/x25/x25_subr.c
+++ b/net/x25/x25_subr.c
@@ -40,6 +40,7 @@ void x25_clear_queues(struct sock *sk)
skb_queue_purge(&x25->interrupt_in_queue);
skb_queue_purge(&x25->interrupt_out_queue);
skb_queue_purge(&x25->fragment_queue);
+ x25->fraglen = 0;
}

diff --git a/sound/pci/ctxfi/ctdaio.c b/sound/pci/ctxfi/ctdaio.c
index 7fc720046ce2..4e4c780bfa9d 100644
--- a/sound/pci/ctxfi/ctdaio.c
+++ b/sound/pci/ctxfi/ctdaio.c
@@ -119,6 +119,7 @@ static unsigned int daio_device_index(enum DAIOTYP type, struct hw *hw)
switch (type) {
case SPDIFOO: return 0;
case SPDIFIO: return 0;
+ case SPDIFI1: return 1;
case LINEO1: return 4;
case LINEO2: return 7;
case LINEO3: return 5;
diff --git a/sound/soc/cirrus/ep93xx-i2s.c b/sound/soc/cirrus/ep93xx-i2s.c
index 522de4b80293..a13fb1243379 100644
--- a/sound/soc/cirrus/ep93xx-i2s.c
+++ b/sound/soc/cirrus/ep93xx-i2s.c
@@ -105,16 +105,28 @@ static inline unsigned ep93xx_i2s_read_reg(struct ep93xx_i2s_info *info,
return __raw_readl(info->regs + reg);
}

-static void ep93xx_i2s_enable(struct ep93xx_i2s_info *info, int stream)
+static int ep93xx_i2s_enable(struct ep93xx_i2s_info *info, int stream)
{
unsigned base_reg;
+ int err;

if ((ep93xx_i2s_read_reg(info, EP93XX_I2S_TX0EN) & 0x1) == 0 &&
(ep93xx_i2s_read_reg(info, EP93XX_I2S_RX0EN) & 0x1) == 0) {
/* Enable clocks */
- clk_prepare_enable(info->mclk);
- clk_prepare_enable(info->sclk);
- clk_prepare_enable(info->lrclk);
+ err = clk_prepare_enable(info->mclk);
+ if (err)
+ return err;
+ err = clk_prepare_enable(info->sclk);
+ if (err) {
+ clk_disable_unprepare(info->mclk);
+ return err;
+ }
+ err = clk_prepare_enable(info->lrclk);
+ if (err) {
+ clk_disable_unprepare(info->sclk);
+ clk_disable_unprepare(info->mclk);
+ return err;
+ }

/* Enable i2s */
ep93xx_i2s_write_reg(info, EP93XX_I2S_GLCTRL, 1);
@@ -133,6 +145,8 @@ static void ep93xx_i2s_enable(struct ep93xx_i2s_info *info, int stream)
ep93xx_i2s_write_reg(info, EP93XX_I2S_TXCTRL,
EP93XX_I2S_TXCTRL_TXEMPTY_LVL |
EP93XX_I2S_TXCTRL_TXUFIE);
+
+ return 0;
}

static void ep93xx_i2s_disable(struct ep93xx_i2s_info *info, int stream)
@@ -214,9 +228,7 @@ static int ep93xx_i2s_startup(struct snd_pcm_substream *substream,
{
struct ep93xx_i2s_info *info = snd_soc_dai_get_drvdata(dai);

- ep93xx_i2s_enable(info, substream->stream);
-
- return 0;
+ return ep93xx_i2s_enable(info, substream->stream);
}

static void ep93xx_i2s_shutdown(struct snd_pcm_substream *substream,
@@ -392,14 +404,16 @@ static int ep93xx_i2s_suspend(struct snd_soc_component *component)
static int ep93xx_i2s_resume(struct snd_soc_component *component)
{
struct ep93xx_i2s_info *info = snd_soc_component_get_drvdata(component);
+ int err;

if (!snd_soc_component_active(component))
return 0;

- ep93xx_i2s_enable(info, SNDRV_PCM_STREAM_PLAYBACK);
- ep93xx_i2s_enable(info, SNDRV_PCM_STREAM_CAPTURE);
+ err = ep93xx_i2s_enable(info, SNDRV_PCM_STREAM_PLAYBACK);
+ if (err)
+ return err;

- return 0;
+ return ep93xx_i2s_enable(info, SNDRV_PCM_STREAM_CAPTURE);
}
#else
#define ep93xx_i2s_suspend NULL
diff --git a/sound/usb/caiaq/device.c b/sound/usb/caiaq/device.c
index dfd820483849..3a71bab8a477 100644
--- a/sound/usb/caiaq/device.c
+++ b/sound/usb/caiaq/device.c
@@ -488,7 +488,7 @@ static int init_card(struct snd_usb_caiaqdev *cdev)
memset(id, 0, sizeof(id));

for (c = card->shortname, len = 0;
- *c && len < sizeof(card->id); c++)
+ *c && len < sizeof(card->id) - 1; c++)
if (*c != ' ')
id[len++] = *c;

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 6497c80fd6f7..2c7b09c8415f 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -2136,12 +2136,11 @@ static void mark_func_jump_tables(struct objtool_file *file,
last = insn;

/*
- * Store back-pointers for unconditional forward jumps such
+ * Store back-pointers for forward jumps such
* that find_jump_table() can back-track using those and
* avoid some potentially confusing code.
*/
- if (insn->type == INSN_JUMP_UNCONDITIONAL && insn->jump_dest &&
- insn->offset > last->offset &&
+ if (insn->jump_dest &&
insn->jump_dest->offset > insn->offset &&
!insn->jump_dest->first_jump_src) {