Re: Linux 4.14.255

Greg Kroah-Hartman
2021-11-12T13:54:27Z

diff --git a/Makefile b/Makefile
index b684983722af..552f17dd25b4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 14
-SUBLEVEL = 254
+SUBLEVEL = 255
EXTRAVERSION =
NAME = Petit Gorille

diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h
index 77676e18da69..a31ae69da639 100644
--- a/arch/arc/include/asm/pgtable.h
+++ b/arch/arc/include/asm/pgtable.h
@@ -138,8 +138,10 @@

#ifdef CONFIG_ARC_HAS_PAE40
#define PTE_BITS_NON_RWX_IN_PD1 (0xff00000000 | PAGE_MASK | _PAGE_CACHEABLE)
+#define MAX_POSSIBLE_PHYSMEM_BITS 40
#else
#define PTE_BITS_NON_RWX_IN_PD1 (PAGE_MASK | _PAGE_CACHEABLE)
+#define MAX_POSSIBLE_PHYSMEM_BITS 32
#endif

/**************************************************************************
diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h
index 92fd2c8a9af0..6154902bed83 100644
--- a/arch/arm/include/asm/pgtable-2level.h
+++ b/arch/arm/include/asm/pgtable-2level.h
@@ -78,6 +78,8 @@
#define PTE_HWTABLE_OFF (PTE_HWTABLE_PTRS * sizeof(pte_t))
#define PTE_HWTABLE_SIZE (PTRS_PER_PTE * sizeof(u32))

+#define MAX_POSSIBLE_PHYSMEM_BITS 32
+
/*
* PMD_SHIFT determines the size of the area a second-level page table can map
* PGDIR_SHIFT determines what a third-level page table entry can map
diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
index 2a029bceaf2f..35807e611b6e 100644
--- a/arch/arm/include/asm/pgtable-3level.h
+++ b/arch/arm/include/asm/pgtable-3level.h
@@ -37,6 +37,8 @@
#define PTE_HWTABLE_OFF (0)
#define PTE_HWTABLE_SIZE (PTRS_PER_PTE * sizeof(u64))

+#define MAX_POSSIBLE_PHYSMEM_BITS 40
+
/*
* PGDIR_SHIFT determines the size a top-level page table entry can map.
*/
diff --git a/arch/mips/include/asm/pgtable-32.h b/arch/mips/include/asm/pgtable-32.h
index 74afe8c76bdd..215fb48f644b 100644
--- a/arch/mips/include/asm/pgtable-32.h
+++ b/arch/mips/include/asm/pgtable-32.h
@@ -111,6 +111,7 @@ static inline void pmd_clear(pmd_t *pmdp)

#if defined(CONFIG_XPA)

+#define MAX_POSSIBLE_PHYSMEM_BITS 40
#define pte_pfn(x) (((unsigned long)((x).pte_high >> _PFN_SHIFT)) | (unsigned long)((x).pte_low << _PAGE_PRESENT_SHIFT))
static inline pte_t
pfn_pte(unsigned long pfn, pgprot_t prot)
@@ -126,6 +127,7 @@ pfn_pte(unsigned long pfn, pgprot_t prot)

#elif defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32)

+#define MAX_POSSIBLE_PHYSMEM_BITS 36
#define pte_pfn(x) ((unsigned long)((x).pte_high >> 6))

static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot)
@@ -140,6 +142,7 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot)

#else

+#define MAX_POSSIBLE_PHYSMEM_BITS 32
#ifdef CONFIG_CPU_VR41XX
#define pte_pfn(x) ((unsigned long)((x).pte >> (PAGE_SHIFT + 2)))
#define pfn_pte(pfn, prot) __pte(((pfn) << (PAGE_SHIFT + 2)) | pgprot_val(prot))
diff --git a/arch/powerpc/include/asm/pte-common.h b/arch/powerpc/include/asm/pte-common.h
index ce142ef99ba7..18ebe9a4728e 100644
--- a/arch/powerpc/include/asm/pte-common.h
+++ b/arch/powerpc/include/asm/pte-common.h
@@ -102,8 +102,10 @@ static inline bool pte_user(pte_t pte)
*/
#if defined(CONFIG_PPC32) && defined(CONFIG_PTE_64BIT)
#define PTE_RPN_MASK (~((1ULL<<PTE_RPN_SHIFT)-1))
+#define MAX_POSSIBLE_PHYSMEM_BITS 36
#else
#define PTE_RPN_MASK (~((1UL<<PTE_RPN_SHIFT)-1))
+#define MAX_POSSIBLE_PHYSMEM_BITS 32
#endif

/* _PAGE_CHG_MASK masks of bits that are to be preserved across
diff --git a/arch/x86/include/asm/pgtable-3level_types.h b/arch/x86/include/asm/pgtable-3level_types.h
index 876b4c77d983..6a59a6d0cc50 100644
--- a/arch/x86/include/asm/pgtable-3level_types.h
+++ b/arch/x86/include/asm/pgtable-3level_types.h
@@ -44,5 +44,6 @@ typedef union {
*/
#define PTRS_PER_PTE 512

+#define MAX_POSSIBLE_PHYSMEM_BITS 36

#endif /* _ASM_X86_PGTABLE_3LEVEL_DEFS_H */
diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h
index bf6d2692fc60..2bd79b7ae9d6 100644
--- a/arch/x86/include/asm/pgtable_64_types.h
+++ b/arch/x86/include/asm/pgtable_64_types.h
@@ -40,6 +40,8 @@ typedef struct { pteval_t pte; } pte_t;
#define P4D_SIZE (_AC(1, UL) << P4D_SHIFT)
#define P4D_MASK (~(P4D_SIZE - 1))

+#define MAX_POSSIBLE_PHYSMEM_BITS 52
+
#else /* CONFIG_X86_5LEVEL */

/*
diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
index b928e61fe375..dab6940ea99c 100644
--- a/arch/x86/kvm/ioapic.c
+++ b/arch/x86/kvm/ioapic.c
@@ -96,7 +96,7 @@ static unsigned long ioapic_read_indirect(struct kvm_ioapic *ioapic,
static void rtc_irq_eoi_tracking_reset(struct kvm_ioapic *ioapic)
{
ioapic->rtc_status.pending_eoi = 0;
- bitmap_zero(ioapic->rtc_status.dest_map.map, KVM_MAX_VCPU_ID + 1);
+ bitmap_zero(ioapic->rtc_status.dest_map.map, KVM_MAX_VCPU_ID);
}

static void kvm_rtc_eoi_tracking_restore_all(struct kvm_ioapic *ioapic);
diff --git a/arch/x86/kvm/ioapic.h b/arch/x86/kvm/ioapic.h
index 283f1f489bca..ea1a4e0297da 100644
--- a/arch/x86/kvm/ioapic.h
+++ b/arch/x86/kvm/ioapic.h
@@ -43,13 +43,13 @@ struct kvm_vcpu;

struct dest_map {
/* vcpu bitmap where IRQ has been sent */
- DECLARE_BITMAP(map, KVM_MAX_VCPU_ID + 1);
+ DECLARE_BITMAP(map, KVM_MAX_VCPU_ID);

/*
* Vector sent to a given vcpu, only valid when
* the vcpu's bit in map is set
*/
- u8 vectors[KVM_MAX_VCPU_ID + 1];
+ u8 vectors[KVM_MAX_VCPU_ID];
};

diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index a82d068a84b4..8ea401fc8996 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -355,9 +355,6 @@ static int amba_device_try_add(struct amba_device *dev, struct resource *parent)
void __iomem *tmp;
int i, ret;

- WARN_ON(dev->irq[0] == (unsigned int)-1);
- WARN_ON(dev->irq[1] == (unsigned int)-1);
-
ret = request_resource(parent, &dev->res);
if (ret)
goto err_out;
diff --git a/drivers/infiniband/hw/qib/qib_user_sdma.c b/drivers/infiniband/hw/qib/qib_user_sdma.c
index 926f3c8eba69..42329bbe4055 100644
--- a/drivers/infiniband/hw/qib/qib_user_sdma.c
+++ b/drivers/infiniband/hw/qib/qib_user_sdma.c
@@ -41,6 +41,7 @@
#include <linux/rbtree.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
+#include <linux/overflow.h>

#include "qib.h"
#include "qib_user_sdma.h"
@@ -606,7 +607,7 @@ static int qib_user_sdma_coalesce(const struct qib_devdata *dd,
/*
* How many pages in this iovec element?
*/
-static int qib_user_sdma_num_pages(const struct iovec *iov)
+static size_t qib_user_sdma_num_pages(const struct iovec *iov)
{
const unsigned long addr = (unsigned long) iov->iov_base;
const unsigned long len = iov->iov_len;
@@ -662,7 +663,7 @@ static void qib_user_sdma_free_pkt_frag(struct device *dev,
static int qib_user_sdma_pin_pages(const struct qib_devdata *dd,
struct qib_user_sdma_queue *pq,
struct qib_user_sdma_pkt *pkt,
- unsigned long addr, int tlen, int npages)
+ unsigned long addr, int tlen, size_t npages)
{
struct page *pages[8];
int i, j;
@@ -726,7 +727,7 @@ static int qib_user_sdma_pin_pkt(const struct qib_devdata *dd,
unsigned long idx;

for (idx = 0; idx < niov; idx++) {
- const int npages = qib_user_sdma_num_pages(iov + idx);
+ const size_t npages = qib_user_sdma_num_pages(iov + idx);
const unsigned long addr = (unsigned long) iov[idx].iov_base;

ret = qib_user_sdma_pin_pages(dd, pq, pkt, addr,
@@ -828,8 +829,8 @@ static int qib_user_sdma_queue_pkts(const struct qib_devdata *dd,
unsigned pktnw;
unsigned pktnwc;
int nfrags = 0;
- int npages = 0;
- int bytes_togo = 0;
+ size_t npages = 0;
+ size_t bytes_togo = 0;
int tiddma = 0;
int cfur;

@@ -889,7 +890,11 @@ static int qib_user_sdma_queue_pkts(const struct qib_devdata *dd,

npages += qib_user_sdma_num_pages(&iov[idx]);

- bytes_togo += slen;
+ if (check_add_overflow(bytes_togo, slen, &bytes_togo) ||
+ bytes_togo > type_max(typeof(pkt->bytes_togo))) {
+ ret = -EINVAL;
+ goto free_pbc;
+ }
pktnwc += slen >> 2;
idx++;
nfrags++;
@@ -908,10 +913,10 @@ static int qib_user_sdma_queue_pkts(const struct qib_devdata *dd,
}

if (frag_size) {
- int pktsize, tidsmsize, n;
+ size_t tidsmsize, n, pktsize, sz, addrlimit;

n = npages*((2*PAGE_SIZE/frag_size)+1);
- pktsize = sizeof(*pkt) + sizeof(pkt->addr[0])*n;
+ pktsize = struct_size(pkt, addr, n);

/*
* Determine if this is tid-sdma or just sdma.
@@ -926,14 +931,24 @@ static int qib_user_sdma_queue_pkts(const struct qib_devdata *dd,
else
tidsmsize = 0;

- pkt = kmalloc(pktsize+tidsmsize, GFP_KERNEL);
+ if (check_add_overflow(pktsize, tidsmsize, &sz)) {
+ ret = -EINVAL;
+ goto free_pbc;
+ }
+ pkt = kmalloc(sz, GFP_KERNEL);
if (!pkt) {
ret = -ENOMEM;
goto free_pbc;
}
pkt->largepkt = 1;
pkt->frag_size = frag_size;
- pkt->addrlimit = n + ARRAY_SIZE(pkt->addr);
+ if (check_add_overflow(n, ARRAY_SIZE(pkt->addr),
+ &addrlimit) ||
+ addrlimit > type_max(typeof(pkt->addrlimit))) {
+ ret = -EINVAL;
+ goto free_pbc;
+ }
+ pkt->addrlimit = addrlimit;

if (tiddma) {
char *tidsm = (char *)pkt + pktsize;
diff --git a/drivers/media/firewire/firedtv-avc.c b/drivers/media/firewire/firedtv-avc.c
index b243e4a52f10..9e6a48233c06 100644
--- a/drivers/media/firewire/firedtv-avc.c
+++ b/drivers/media/firewire/firedtv-avc.c
@@ -1169,7 +1169,11 @@ int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length)
read_pos += program_info_length;
write_pos += program_info_length;
}
- while (read_pos < length) {
+ while (read_pos + 4 < length) {
+ if (write_pos + 4 >= sizeof(c->operand) - 4) {
+ ret = -EINVAL;
+ goto out;
+ }
c->operand[write_pos++] = msg[read_pos++];
c->operand[write_pos++] = msg[read_pos++];
c->operand[write_pos++] = msg[read_pos++];
@@ -1181,13 +1185,17 @@ int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length)
c->operand[write_pos++] = es_info_length >> 8;
c->operand[write_pos++] = es_info_length & 0xff;
if (es_info_length > 0) {
+ if (read_pos >= length) {
+ ret = -EINVAL;
+ goto out;
+ }
pmt_cmd_id = msg[read_pos++];
if (pmt_cmd_id != 1 && pmt_cmd_id != 4)
dev_err(fdtv->device, "invalid pmt_cmd_id %d at stream level\n",
pmt_cmd_id);

- if (es_info_length > sizeof(c->operand) - 4 -
- write_pos) {
+ if (es_info_length > sizeof(c->operand) - 4 - write_pos ||
+ es_info_length > length - read_pos) {
ret = -EINVAL;
goto out;
}
diff --git a/drivers/media/firewire/firedtv-ci.c b/drivers/media/firewire/firedtv-ci.c
index edbb30fdd9d9..93fb4b7312af 100644
--- a/drivers/media/firewire/firedtv-ci.c
+++ b/drivers/media/firewire/firedtv-ci.c
@@ -138,6 +138,8 @@ static int fdtv_ca_pmt(struct firedtv *fdtv, void *arg)
} else {
data_length = msg->msg[3];
}
+ if (data_length > sizeof(msg->msg) - data_pos)
+ return -EINVAL;

return avc_ca_pmt(fdtv, &msg->msg[data_pos], data_length);
}
diff --git a/drivers/net/wireless/rsi/rsi_91x_usb.c b/drivers/net/wireless/rsi/rsi_91x_usb.c
index 786a330bc470..e31739242ccb 100644
--- a/drivers/net/wireless/rsi/rsi_91x_usb.c
+++ b/drivers/net/wireless/rsi/rsi_91x_usb.c
@@ -48,7 +48,7 @@ static int rsi_usb_card_write(struct rsi_hw *adapter,
(void *)seg,
(int)len,
&transfer,
- HZ * 5);
+ USB_CTRL_SET_TIMEOUT);

if (status < 0) {
rsi_dbg(ERR_ZONE,
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index a7e4fba724b7..80ab7ef02724 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -575,8 +575,10 @@ EXPORT_SYMBOL(scsi_device_get);
*/
void scsi_device_put(struct scsi_device *sdev)
{
- module_put(sdev->host->hostt->module);
+ struct module *mod = sdev->host->hostt->module;
+
put_device(&sdev->sdev_gendev);
+ module_put(mod);
}
EXPORT_SYMBOL(scsi_device_put);

diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index ffb44d77a01b..7fe2a0371b48 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -430,9 +430,12 @@ static void scsi_device_dev_release_usercontext(struct work_struct *work)
struct list_head *this, *tmp;
struct scsi_vpd *vpd_pg80 = NULL, *vpd_pg83 = NULL;
unsigned long flags;
+ struct module *mod;

sdev = container_of(work, struct scsi_device, ew.work);

+ mod = sdev->host->hostt->module;
+
scsi_dh_release_device(sdev);

parent = sdev->sdev_gendev.parent;
@@ -473,11 +476,17 @@ static void scsi_device_dev_release_usercontext(struct work_struct *work)

if (parent)
put_device(parent);
+ module_put(mod);
}

static void scsi_device_dev_release(struct device *dev)
{
struct scsi_device *sdp = to_scsi_device(dev);
+
+ /* Set module pointer as NULL in case of module unloading */
+ if (!try_module_get(sdp->host->hostt->module))
+ sdp->host->hostt->module = NULL;
+
execute_in_process_context(scsi_device_dev_release_usercontext,
&sdp->ew);
}
diff --git a/drivers/staging/comedi/drivers/dt9812.c b/drivers/staging/comedi/drivers/dt9812.c
index 7ebca862ecaa..e758eb3d2d19 100644
--- a/drivers/staging/comedi/drivers/dt9812.c
+++ b/drivers/staging/comedi/drivers/dt9812.c
@@ -41,6 +41,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/errno.h>
+#include <linux/slab.h>
#include <linux/uaccess.h>

#include "../comedi_usb.h"
@@ -246,22 +247,42 @@ static int dt9812_read_info(struct comedi_device *dev,
{
struct usb_device *usb = comedi_to_usb_dev(dev);
struct dt9812_private *devpriv = dev->private;
- struct dt9812_usb_cmd cmd;
+ struct dt9812_usb_cmd *cmd;
+ size_t tbuf_size;
int count, ret;
+ void *tbuf;

- cmd.cmd = cpu_to_le32(DT9812_R_FLASH_DATA);
- cmd.u.flash_data_info.address =
+ tbuf_size = max(sizeof(*cmd), buf_size);
+
+ tbuf = kzalloc(tbuf_size, GFP_KERNEL);
+ if (!tbuf)
+ return -ENOMEM;
+
+ cmd = tbuf;
+
+ cmd->cmd = cpu_to_le32(DT9812_R_FLASH_DATA);
+ cmd->u.flash_data_info.address =
cpu_to_le16(DT9812_DIAGS_BOARD_INFO_ADDR + offset);
- cmd.u.flash_data_info.numbytes = cpu_to_le16(buf_size);
+ cmd->u.flash_data_info.numbytes = cpu_to_le16(buf_size);

/* DT9812 only responds to 32 byte writes!! */
ret = usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
- &cmd, 32, &count, DT9812_USB_TIMEOUT);
+ cmd, sizeof(*cmd), &count, DT9812_USB_TIMEOUT);
if (ret)
- return ret;
+ goto out;
+
+ ret = usb_bulk_msg(usb, usb_rcvbulkpipe(usb, devpriv->cmd_rd.addr),
+ tbuf, buf_size, &count, DT9812_USB_TIMEOUT);
+ if (!ret) {
+ if (count == buf_size)
+ memcpy(buf, tbuf, buf_size);
+ else
+ ret = -EREMOTEIO;
+ }
+out:
+ kfree(tbuf);

- return usb_bulk_msg(usb, usb_rcvbulkpipe(usb, devpriv->cmd_rd.addr),
- buf, buf_size, &count, DT9812_USB_TIMEOUT);
+ return ret;
}

static int dt9812_read_multiple_registers(struct comedi_device *dev,
@@ -270,22 +291,42 @@ static int dt9812_read_multiple_registers(struct comedi_device *dev,
{
struct usb_device *usb = comedi_to_usb_dev(dev);
struct dt9812_private *devpriv = dev->private;
- struct dt9812_usb_cmd cmd;
+ struct dt9812_usb_cmd *cmd;
int i, count, ret;
+ size_t buf_size;
+ void *buf;

- cmd.cmd = cpu_to_le32(DT9812_R_MULTI_BYTE_REG);
- cmd.u.read_multi_info.count = reg_count;
+ buf_size = max_t(size_t, sizeof(*cmd), reg_count);
+
+ buf = kzalloc(buf_size, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ cmd = buf;
+
+ cmd->cmd = cpu_to_le32(DT9812_R_MULTI_BYTE_REG);
+ cmd->u.read_multi_info.count = reg_count;
for (i = 0; i < reg_count; i++)
- cmd.u.read_multi_info.address[i] = address[i];
+ cmd->u.read_multi_info.address[i] = address[i];

/* DT9812 only responds to 32 byte writes!! */
ret = usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
- &cmd, 32, &count, DT9812_USB_TIMEOUT);
+ cmd, sizeof(*cmd), &count, DT9812_USB_TIMEOUT);
if (ret)
- return ret;
+ goto out;
+
+ ret = usb_bulk_msg(usb, usb_rcvbulkpipe(usb, devpriv->cmd_rd.addr),
+ buf, reg_count, &count, DT9812_USB_TIMEOUT);
+ if (!ret) {
+ if (count == reg_count)
+ memcpy(value, buf, reg_count);
+ else
+ ret = -EREMOTEIO;
+ }
+out:
+ kfree(buf);

- return usb_bulk_msg(usb, usb_rcvbulkpipe(usb, devpriv->cmd_rd.addr),
- value, reg_count, &count, DT9812_USB_TIMEOUT);
+ return ret;
}

static int dt9812_write_multiple_registers(struct comedi_device *dev,
@@ -294,19 +335,27 @@ static int dt9812_write_multiple_registers(struct comedi_device *dev,
{
struct usb_device *usb = comedi_to_usb_dev(dev);
struct dt9812_private *devpriv = dev->private;
- struct dt9812_usb_cmd cmd;
+ struct dt9812_usb_cmd *cmd;
int i, count;
+ int ret;
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd)
+ return -ENOMEM;

- cmd.cmd = cpu_to_le32(DT9812_W_MULTI_BYTE_REG);
- cmd.u.read_multi_info.count = reg_count;
+ cmd->cmd = cpu_to_le32(DT9812_W_MULTI_BYTE_REG);
+ cmd->u.read_multi_info.count = reg_count;
for (i = 0; i < reg_count; i++) {
- cmd.u.write_multi_info.write[i].address = address[i];
- cmd.u.write_multi_info.write[i].value = value[i];
+ cmd->u.write_multi_info.write[i].address = address[i];
+ cmd->u.write_multi_info.write[i].value = value[i];
}

/* DT9812 only responds to 32 byte writes!! */
- return usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
- &cmd, 32, &count, DT9812_USB_TIMEOUT);
+ ret = usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
+ cmd, sizeof(*cmd), &count, DT9812_USB_TIMEOUT);
+ kfree(cmd);
+
+ return ret;
}

static int dt9812_rmw_multiple_registers(struct comedi_device *dev,
@@ -315,17 +364,25 @@ static int dt9812_rmw_multiple_registers(struct comedi_device *dev,
{
struct usb_device *usb = comedi_to_usb_dev(dev);
struct dt9812_private *devpriv = dev->private;
- struct dt9812_usb_cmd cmd;
+ struct dt9812_usb_cmd *cmd;
int i, count;
+ int ret;
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd)
+ return -ENOMEM;

- cmd.cmd = cpu_to_le32(DT9812_RMW_MULTI_BYTE_REG);
- cmd.u.rmw_multi_info.count = reg_count;
+ cmd->cmd = cpu_to_le32(DT9812_RMW_MULTI_BYTE_REG);
+ cmd->u.rmw_multi_info.count = reg_count;
for (i = 0; i < reg_count; i++)
- cmd.u.rmw_multi_info.rmw[i] = rmw[i];
+ cmd->u.rmw_multi_info.rmw[i] = rmw[i];

/* DT9812 only responds to 32 byte writes!! */
- return usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
- &cmd, 32, &count, DT9812_USB_TIMEOUT);
+ ret = usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
+ cmd, sizeof(*cmd), &count, DT9812_USB_TIMEOUT);
+ kfree(cmd);
+
+ return ret;
}

static int dt9812_digital_in(struct comedi_device *dev, u8 *bits)
diff --git a/drivers/staging/comedi/drivers/ni_usb6501.c b/drivers/staging/comedi/drivers/ni_usb6501.c
index 009c5277387b..56b45b21eac3 100644
--- a/drivers/staging/comedi/drivers/ni_usb6501.c
+++ b/drivers/staging/comedi/drivers/ni_usb6501.c
@@ -153,6 +153,10 @@ static const u8 READ_COUNTER_RESPONSE[] = {0x00, 0x01, 0x00, 0x10,
0x00, 0x00, 0x00, 0x02,
0x00, 0x00, 0x00, 0x00};

+/* Largest supported packets */
+static const size_t TX_MAX_SIZE = sizeof(SET_PORT_DIR_REQUEST);
+static const size_t RX_MAX_SIZE = sizeof(READ_PORT_RESPONSE);
+
enum commands {
READ_PORT,
WRITE_PORT,
@@ -510,6 +514,12 @@ static int ni6501_find_endpoints(struct comedi_device *dev)
if (!devpriv->ep_rx || !devpriv->ep_tx)
return -ENODEV;

+ if (usb_endpoint_maxp(devpriv->ep_rx) < RX_MAX_SIZE)
+ return -ENODEV;
+
+ if (usb_endpoint_maxp(devpriv->ep_tx) < TX_MAX_SIZE)
+ return -ENODEV;
+
return 0;
}

diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
index cdf86284dd04..36470ee06596 100644
--- a/drivers/staging/comedi/drivers/vmk80xx.c
+++ b/drivers/staging/comedi/drivers/vmk80xx.c
@@ -99,6 +99,9 @@ enum {
#define IC3_VERSION BIT(0)
#define IC6_VERSION BIT(1)

+#define MIN_BUF_SIZE 64
+#define PACKET_TIMEOUT 10000 /* ms */
+
enum vmk80xx_model {
VMK8055_MODEL,
VMK8061_MODEL
@@ -166,22 +169,21 @@ static void vmk80xx_do_bulk_msg(struct comedi_device *dev)
__u8 rx_addr;
unsigned int tx_pipe;
unsigned int rx_pipe;
- size_t size;
+ size_t tx_size;
+ size_t rx_size;

tx_addr = devpriv->ep_tx->bEndpointAddress;
rx_addr = devpriv->ep_rx->bEndpointAddress;
tx_pipe = usb_sndbulkpipe(usb, tx_addr);
rx_pipe = usb_rcvbulkpipe(usb, rx_addr);
+ tx_size = usb_endpoint_maxp(devpriv->ep_tx);
+ rx_size = usb_endpoint_maxp(devpriv->ep_rx);

- /*
- * The max packet size attributes of the K8061
- * input/output endpoints are identical
- */
- size = usb_endpoint_maxp(devpriv->ep_tx);
+ usb_bulk_msg(usb, tx_pipe, devpriv->usb_tx_buf, tx_size, NULL,
+ PACKET_TIMEOUT);

- usb_bulk_msg(usb, tx_pipe, devpriv->usb_tx_buf,
- size, NULL, devpriv->ep_tx->bInterval);
- usb_bulk_msg(usb, rx_pipe, devpriv->usb_rx_buf, size, NULL, HZ * 10);
+ usb_bulk_msg(usb, rx_pipe, devpriv->usb_rx_buf, rx_size, NULL,
+ PACKET_TIMEOUT);
}

static int vmk80xx_read_packet(struct comedi_device *dev)
@@ -200,7 +202,7 @@ static int vmk80xx_read_packet(struct comedi_device *dev)
pipe = usb_rcvintpipe(usb, ep->bEndpointAddress);
return usb_interrupt_msg(usb, pipe, devpriv->usb_rx_buf,
usb_endpoint_maxp(ep), NULL,
- HZ * 10);
+ PACKET_TIMEOUT);
}

static int vmk80xx_write_packet(struct comedi_device *dev, int cmd)
@@ -221,7 +223,7 @@ static int vmk80xx_write_packet(struct comedi_device *dev, int cmd)
pipe = usb_sndintpipe(usb, ep->bEndpointAddress);
return usb_interrupt_msg(usb, pipe, devpriv->usb_tx_buf,
usb_endpoint_maxp(ep), NULL,
- HZ * 10);
+ PACKET_TIMEOUT);
}

static int vmk80xx_reset_device(struct comedi_device *dev)
@@ -687,12 +689,12 @@ static int vmk80xx_alloc_usb_buffers(struct comedi_device *dev)
struct vmk80xx_private *devpriv = dev->private;
size_t size;

- size = usb_endpoint_maxp(devpriv->ep_rx);
+ size = max(usb_endpoint_maxp(devpriv->ep_rx), MIN_BUF_SIZE);
devpriv->usb_rx_buf = kzalloc(size, GFP_KERNEL);
if (!devpriv->usb_rx_buf)
return -ENOMEM;

- size = usb_endpoint_maxp(devpriv->ep_tx);
+ size = max(usb_endpoint_maxp(devpriv->ep_rx), MIN_BUF_SIZE);
devpriv->usb_tx_buf = kzalloc(size, GFP_KERNEL);
if (!devpriv->usb_tx_buf)
return -ENOMEM;
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 89ec4bb19e48..ac7872ea0cb1 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -266,7 +266,7 @@ int write_nic_byte_E(struct net_device *dev, int indx, u8 data)

status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
- indx | 0xfe00, 0, usbdata, 1, HZ / 2);
+ indx | 0xfe00, 0, usbdata, 1, 500);
kfree(usbdata);

if (status < 0) {
@@ -288,7 +288,7 @@ int read_nic_byte_E(struct net_device *dev, int indx, u8 *data)

status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
- indx | 0xfe00, 0, usbdata, 1, HZ / 2);
+ indx | 0xfe00, 0, usbdata, 1, 500);
*data = *usbdata;
kfree(usbdata);

@@ -316,7 +316,7 @@ int write_nic_byte(struct net_device *dev, int indx, u8 data)
status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
(indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
- usbdata, 1, HZ / 2);
+ usbdata, 1, 500);
kfree(usbdata);

if (status < 0) {
@@ -343,7 +343,7 @@ int write_nic_word(struct net_device *dev, int indx, u16 data)
status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
(indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
- usbdata, 2, HZ / 2);
+ usbdata, 2, 500);
kfree(usbdata);

if (status < 0) {
@@ -370,7 +370,7 @@ int write_nic_dword(struct net_device *dev, int indx, u32 data)
status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
(indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
- usbdata, 4, HZ / 2);
+ usbdata, 4, 500);
kfree(usbdata);

@@ -397,7 +397,7 @@ int read_nic_byte(struct net_device *dev, int indx, u8 *data)
status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
(indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
- usbdata, 1, HZ / 2);
+ usbdata, 1, 500);
*data = *usbdata;
kfree(usbdata);

@@ -424,7 +424,7 @@ int read_nic_word(struct net_device *dev, int indx, u16 *data)
status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
(indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
- usbdata, 2, HZ / 2);
+ usbdata, 2, 500);
*data = *usbdata;
kfree(usbdata);

@@ -448,7 +448,7 @@ static int read_nic_word_E(struct net_device *dev, int indx, u16 *data)

status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
- indx | 0xfe00, 0, usbdata, 2, HZ / 2);
+ indx | 0xfe00, 0, usbdata, 2, 500);
*data = *usbdata;
kfree(usbdata);

@@ -474,7 +474,7 @@ int read_nic_dword(struct net_device *dev, int indx, u32 *data)
status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
(indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
- usbdata, 4, HZ / 2);
+ usbdata, 4, 500);
*data = *usbdata;
kfree(usbdata);

diff --git a/drivers/staging/rtl8712/usb_ops_linux.c b/drivers/staging/rtl8712/usb_ops_linux.c
index 441e76b8959d..0c1576f73e4a 100644
--- a/drivers/staging/rtl8712/usb_ops_linux.c
+++ b/drivers/staging/rtl8712/usb_ops_linux.c
@@ -505,7 +505,7 @@ int r8712_usbctrl_vendorreq(struct intf_priv *pintfpriv, u8 request, u16 value,
memcpy(pIo_buf, pdata, len);
}
status = usb_control_msg(udev, pipe, request, reqtype, value, index,
- pIo_buf, len, HZ / 2);
+ pIo_buf, len, 500);
if (status > 0) { /* Success this control transfer. */
if (requesttype == 0x01) {
/* For Control read transfer, we have to copy the read
diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig
index 1e9567091d86..3291ea22853c 100644
--- a/drivers/usb/gadget/udc/Kconfig
+++ b/drivers/usb/gadget/udc/Kconfig
@@ -328,6 +328,7 @@ config USB_AMD5536UDC
config USB_FSL_QE
tristate "Freescale QE/CPM USB Device Controller"
depends on FSL_SOC && (QUICC_ENGINE || CPM)
+ depends on !64BIT || BROKEN
help
Some of Freescale PowerPC processors have a Full Speed
QE/CPM2 USB controller, which support device mode with 4
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 1e431634589d..319c5a1b4a6a 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1280,9 +1280,11 @@ static int musb_gadget_queue(struct usb_ep *ep, struct usb_request *req,
status = musb_queue_resume_work(musb,
musb_ep_restart_resume_work,
request);
- if (status < 0)
+ if (status < 0) {
dev_err(musb->controller, "%s resume work: %i\n",
__func__, status);
+ list_del(&request->list);
+ }
}

unlock:
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 683830dd383f..15915784071e 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -425,6 +425,16 @@ UNUSUAL_DEV( 0x04b8, 0x0602, 0x0110, 0x0110,
"785EPX Storage",
USB_SC_SCSI, USB_PR_BULK, NULL, US_FL_SINGLE_LUN),

+/*
+ * Reported by James Buren <braewoods+lkml@braewoods.net>
+ * Virtual ISOs cannot be remounted if ejected while the device is locked
+ * Disable locking to mimic Windows behavior that bypasses the issue
+ */
+UNUSUAL_DEV( 0x04c5, 0x2028, 0x0001, 0x0001,
+ "iODD",
+ "2531/2541",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NOT_LOCKABLE),
+
/*
* Not sure who reported this originally but
* Pavel Machek <pavel@ucw.cz> reported that the extra US_FL_SINGLE_LUN
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index f1134752cea3..ee3c92390413 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -1326,6 +1326,8 @@ static int isofs_read_inode(struct inode *inode, int relocated)

de = (struct iso_directory_record *) (bh->b_data + offset);
de_len = *(unsigned char *) de;
+ if (de_len < sizeof(struct iso_directory_record))
+ goto fail;

if (offset + de_len > bufsize) {
int frag1 = bufsize - offset;
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index cdee19314061..dd65e925f7cf 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -1069,6 +1069,19 @@ static inline bool arch_has_pfn_modify_check(void)

#endif /* !__ASSEMBLY__ */

+#if !defined(MAX_POSSIBLE_PHYSMEM_BITS) && !defined(CONFIG_64BIT)
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+/*
+ * ZSMALLOC needs to know the highest PFN on 32-bit architectures
+ * with physical address space extension, but falls back to
+ * BITS_PER_LONG otherwise.
+ */
+#error Missing MAX_POSSIBLE_PHYSMEM_BITS definition
+#else
+#define MAX_POSSIBLE_PHYSMEM_BITS 32
+#endif
+#endif
+
#ifndef has_transparent_hugepage
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
#define has_transparent_hugepage() 1
diff --git a/include/linux/bvec.h b/include/linux/bvec.h
index f7dc68cd0a39..b8a2734394f7 100644
--- a/include/linux/bvec.h
+++ b/include/linux/bvec.h
@@ -23,6 +23,7 @@
#include <linux/kernel.h>
#include <linux/bug.h>
#include <linux/errno.h>
+#include <linux/mm.h>

/*
* was unsigned short, but we might as well be ready for > 64kB I/O pages
@@ -52,16 +53,39 @@ struct bvec_iter {
*/
#define __bvec_iter_bvec(bvec, iter) (&(bvec)[(iter).bi_idx])

-#define bvec_iter_page(bvec, iter) \
+/* multi-page (mp_bvec) helpers */
+#define mp_bvec_iter_page(bvec, iter) \
(__bvec_iter_bvec((bvec), (iter))->bv_page)

-#define bvec_iter_len(bvec, iter) \
+#define mp_bvec_iter_len(bvec, iter) \
min((iter).bi_size, \
__bvec_iter_bvec((bvec), (iter))->bv_len - (iter).bi_bvec_done)

-#define bvec_iter_offset(bvec, iter) \
+#define mp_bvec_iter_offset(bvec, iter) \
(__bvec_iter_bvec((bvec), (iter))->bv_offset + (iter).bi_bvec_done)

+#define mp_bvec_iter_page_idx(bvec, iter) \
+ (mp_bvec_iter_offset((bvec), (iter)) / PAGE_SIZE)
+
+#define mp_bvec_iter_bvec(bvec, iter) \
+((struct bio_vec) { \
+ .bv_page = mp_bvec_iter_page((bvec), (iter)), \
+ .bv_len = mp_bvec_iter_len((bvec), (iter)), \
+ .bv_offset = mp_bvec_iter_offset((bvec), (iter)), \
+})
+
+/* For building single-page bvec in flight */
+ #define bvec_iter_offset(bvec, iter) \
+ (mp_bvec_iter_offset((bvec), (iter)) % PAGE_SIZE)
+
+#define bvec_iter_len(bvec, iter) \
+ min_t(unsigned, mp_bvec_iter_len((bvec), (iter)), \
+ PAGE_SIZE - bvec_iter_offset((bvec), (iter)))
+
+#define bvec_iter_page(bvec, iter) \
+ nth_page(mp_bvec_iter_page((bvec), (iter)), \
+ mp_bvec_iter_page_idx((bvec), (iter)))
+
#define bvec_iter_bvec(bvec, iter) \
((struct bio_vec) { \
.bv_page = bvec_iter_page((bvec), (iter)), \
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index f96b22db5fe7..31b5e7919d62 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2092,8 +2092,15 @@ static int __init console_setup(char *str)
char *s, *options, *brl_options = NULL;
int idx;

- if (str[0] == 0)
+ /*
+ * console="" or console=null have been suggested as a way to
+ * disable console output. Use ttynull that has been created
+ * for exacly this purpose.
+ */
+ if (str[0] == 0 || strcmp(str, "null") == 0) {
+ __add_preferred_console("ttynull", 0, NULL, NULL);
return 1;
+ }

if (_braille_console_setup(&str, &brl_options))
return 1;
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 6ed736ea9b59..633ebcac82f8 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -83,18 +83,19 @@
* This is made more complicated by various memory models and PAE.
*/

-#ifndef MAX_PHYSMEM_BITS
-#ifdef CONFIG_HIGHMEM64G
-#define MAX_PHYSMEM_BITS 36
-#else /* !CONFIG_HIGHMEM64G */
+#ifndef MAX_POSSIBLE_PHYSMEM_BITS
+#ifdef MAX_PHYSMEM_BITS
+#define MAX_POSSIBLE_PHYSMEM_BITS MAX_PHYSMEM_BITS
+#else
/*
* If this definition of MAX_PHYSMEM_BITS is used, OBJ_INDEX_BITS will just
* be PAGE_SHIFT
*/
-#define MAX_PHYSMEM_BITS BITS_PER_LONG
+#define MAX_POSSIBLE_PHYSMEM_BITS BITS_PER_LONG
#endif
#endif
-#define _PFN_BITS (MAX_PHYSMEM_BITS - PAGE_SHIFT)
+
+#define _PFN_BITS (MAX_POSSIBLE_PHYSMEM_BITS - PAGE_SHIFT)

/*
* Memory for allocating for handle keeps object position by