Re: Linux 5.15.45

Greg Kroah-Hartman
2022-06-06T07:06:06Z

diff --git a/Documentation/process/submitting-patches.rst b/Documentation/process/submitting-patches.rst
index 8ad6b93f91e6..025272139539 100644
--- a/Documentation/process/submitting-patches.rst
+++ b/Documentation/process/submitting-patches.rst
@@ -72,7 +72,7 @@ as you intend it to.

The maintainer will thank you if you write your patch description in a
form which can be easily pulled into Linux's source code management
-system, ``git``, as a "commit log". See :ref:`explicit_in_reply_to`.
+system, ``git``, as a "commit log". See :ref:`the_canonical_patch_format`.

Solve only one problem per patch. If your description starts to get
long, that's a sign that you probably need to split up your patch.
diff --git a/Makefile b/Makefile
index b8ce2ba17486..e58d682071a8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 15
-SUBLEVEL = 44
+SUBLEVEL = 45
EXTRAVERSION =
NAME = Trick or Treat

diff --git a/arch/arm/boot/dts/s5pv210-aries.dtsi b/arch/arm/boot/dts/s5pv210-aries.dtsi
index 160f8cd9a68d..2f57100a011a 100644
--- a/arch/arm/boot/dts/s5pv210-aries.dtsi
+++ b/arch/arm/boot/dts/s5pv210-aries.dtsi
@@ -895,7 +895,7 @@ bluetooth {
device-wakeup-gpios = <&gpg3 4 GPIO_ACTIVE_HIGH>;
interrupt-parent = <&gph2>;
interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "host-wake";
+ interrupt-names = "host-wakeup";
};
};

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 0b2f684cd8ca..a30c036577a3 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1458,7 +1458,8 @@ static int kvm_init_vector_slots(void)
base = kern_hyp_va(kvm_ksym_ref(__bp_harden_hyp_vecs));
kvm_init_vector_slot(base, HYP_VECTOR_SPECTRE_DIRECT);

- if (kvm_system_needs_idmapped_vectors() && !has_vhe()) {
+ if (kvm_system_needs_idmapped_vectors() &&
+ !is_protected_kvm_enabled()) {
err = create_hyp_exec_mappings(__pa_symbol(__bp_harden_hyp_vecs),
__BP_HARDEN_HYP_VECS_SZ, &base);
if (err)
diff --git a/arch/powerpc/kvm/book3s_hv_uvmem.c b/arch/powerpc/kvm/book3s_hv_uvmem.c
index a7061ee3b157..3fbe710ff839 100644
--- a/arch/powerpc/kvm/book3s_hv_uvmem.c
+++ b/arch/powerpc/kvm/book3s_hv_uvmem.c
@@ -360,13 +360,15 @@ static bool kvmppc_gfn_is_uvmem_pfn(unsigned long gfn, struct kvm *kvm,
static bool kvmppc_next_nontransitioned_gfn(const struct kvm_memory_slot *memslot,
struct kvm *kvm, unsigned long *gfn)
{
- struct kvmppc_uvmem_slot *p;
+ struct kvmppc_uvmem_slot *p = NULL, *iter;
bool ret = false;
unsigned long i;

- list_for_each_entry(p, &kvm->arch.uvmem_pfns, list)
- if (*gfn >= p->base_pfn && *gfn < p->base_pfn + p->nr_pfns)
+ list_for_each_entry(iter, &kvm->arch.uvmem_pfns, list)
+ if (*gfn >= iter->base_pfn && *gfn < iter->base_pfn + iter->nr_pfns) {
+ p = iter;
break;
+ }
if (!p)
return ret;
/*
diff --git a/arch/x86/kernel/cpu/sgx/encl.c b/arch/x86/kernel/cpu/sgx/encl.c
index 7c63a1911fae..3c24e6124d95 100644
--- a/arch/x86/kernel/cpu/sgx/encl.c
+++ b/arch/x86/kernel/cpu/sgx/encl.c
@@ -12,6 +12,92 @@
#include "encls.h"
#include "sgx.h"

+#define PCMDS_PER_PAGE (PAGE_SIZE / sizeof(struct sgx_pcmd))
+/*
+ * 32 PCMD entries share a PCMD page. PCMD_FIRST_MASK is used to
+ * determine the page index associated with the first PCMD entry
+ * within a PCMD page.
+ */
+#define PCMD_FIRST_MASK GENMASK(4, 0)
+
+/**
+ * reclaimer_writing_to_pcmd() - Query if any enclave page associated with
+ * a PCMD page is in process of being reclaimed.
+ * @encl: Enclave to which PCMD page belongs
+ * @start_addr: Address of enclave page using first entry within the PCMD page
+ *
+ * When an enclave page is reclaimed some Paging Crypto MetaData (PCMD) is
+ * stored. The PCMD data of a reclaimed enclave page contains enough
+ * information for the processor to verify the page at the time
+ * it is loaded back into the Enclave Page Cache (EPC).
+ *
+ * The backing storage to which enclave pages are reclaimed is laid out as
+ * follows:
+ * Encrypted enclave pages:SECS page:PCMD pages
+ *
+ * Each PCMD page contains the PCMD metadata of
+ * PAGE_SIZE/sizeof(struct sgx_pcmd) enclave pages.
+ *
+ * A PCMD page can only be truncated if it is (a) empty, and (b) not in the
+ * process of getting data (and thus soon being non-empty). (b) is tested with
+ * a check if an enclave page sharing the PCMD page is in the process of being
+ * reclaimed.
+ *
+ * The reclaimer sets the SGX_ENCL_PAGE_BEING_RECLAIMED flag when it
+ * intends to reclaim that enclave page - it means that the PCMD page
+ * associated with that enclave page is about to get some data and thus
+ * even if the PCMD page is empty, it should not be truncated.
+ *
+ * Context: Enclave mutex (&sgx_encl->lock) must be held.
+ * Return: 1 if the reclaimer is about to write to the PCMD page
+ * 0 if the reclaimer has no intention to write to the PCMD page
+ */
+static int reclaimer_writing_to_pcmd(struct sgx_encl *encl,
+ unsigned long start_addr)
+{
+ int reclaimed = 0;
+ int i;
+
+ /*
+ * PCMD_FIRST_MASK is based on number of PCMD entries within
+ * PCMD page being 32.
+ */
+ BUILD_BUG_ON(PCMDS_PER_PAGE != 32);
+
+ for (i = 0; i < PCMDS_PER_PAGE; i++) {
+ struct sgx_encl_page *entry;
+ unsigned long addr;
+
+ addr = start_addr + i * PAGE_SIZE;
+
+ /*
+ * Stop when reaching the SECS page - it does not
+ * have a page_array entry and its reclaim is
+ * started and completed with enclave mutex held so
+ * it does not use the SGX_ENCL_PAGE_BEING_RECLAIMED
+ * flag.
+ */
+ if (addr == encl->base + encl->size)
+ break;
+
+ entry = xa_load(&encl->page_array, PFN_DOWN(addr));
+ if (!entry)
+ continue;
+
+ /*
+ * VA page slot ID uses same bit as the flag so it is important
+ * to ensure that the page is not already in backing store.
+ */
+ if (entry->epc_page &&
+ (entry->desc & SGX_ENCL_PAGE_BEING_RECLAIMED)) {
+ reclaimed = 1;
+ break;
+ }
+ }
+
+ return reclaimed;
+}
+
/*
* Calculate byte offset of a PCMD struct associated with an enclave page. PCMD's
* follow right after the EPC data in the backing storage. In addition to the
@@ -47,6 +133,7 @@ static int __sgx_encl_eldu(struct sgx_encl_page *encl_page,
unsigned long va_offset = encl_page->desc & SGX_ENCL_PAGE_VA_OFFSET_MASK;
struct sgx_encl *encl = encl_page->encl;
pgoff_t page_index, page_pcmd_off;
+ unsigned long pcmd_first_page;
struct sgx_pageinfo pginfo;
struct sgx_backing b;
bool pcmd_page_empty;
@@ -58,6 +145,11 @@ static int __sgx_encl_eldu(struct sgx_encl_page *encl_page,
else
page_index = PFN_DOWN(encl->size);

+ /*
+ * Address of enclave page using the first entry within the PCMD page.
+ */
+ pcmd_first_page = PFN_PHYS(page_index & ~PCMD_FIRST_MASK) + encl->base;
+
page_pcmd_off = sgx_encl_get_backing_page_pcmd_offset(encl, page_index);

ret = sgx_encl_get_backing(encl, page_index, &b);
@@ -84,6 +176,7 @@ static int __sgx_encl_eldu(struct sgx_encl_page *encl_page,
}

memset(pcmd_page + b.pcmd_offset, 0, sizeof(struct sgx_pcmd));
+ set_page_dirty(b.pcmd);

/*
* The area for the PCMD in the page was zeroed above. Check if the
@@ -94,12 +187,20 @@ static int __sgx_encl_eldu(struct sgx_encl_page *encl_page,
kunmap_atomic(pcmd_page);
kunmap_atomic((void *)(unsigned long)pginfo.contents);

- sgx_encl_put_backing(&b, false);
+ get_page(b.pcmd);
+ sgx_encl_put_backing(&b);

sgx_encl_truncate_backing_page(encl, page_index);

- if (pcmd_page_empty)
+ if (pcmd_page_empty && !reclaimer_writing_to_pcmd(encl, pcmd_first_page)) {
sgx_encl_truncate_backing_page(encl, PFN_DOWN(page_pcmd_off));
+ pcmd_page = kmap_atomic(b.pcmd);
+ if (memchr_inv(pcmd_page, 0, PAGE_SIZE))
+ pr_warn("PCMD page not empty after truncate.\n");
+ kunmap_atomic(pcmd_page);
+ }
+
+ put_page(b.pcmd);

return ret;
}
@@ -645,15 +746,9 @@ int sgx_encl_get_backing(struct sgx_encl *encl, unsigned long page_index,
/**
* sgx_encl_put_backing() - Unpin the backing storage
* @backing: data for accessing backing storage for the page
- * @do_write: mark pages dirty
*/
-void sgx_encl_put_backing(struct sgx_backing *backing, bool do_write)
+void sgx_encl_put_backing(struct sgx_backing *backing)
{
- if (do_write) {
- set_page_dirty(backing->pcmd);
- set_page_dirty(backing->contents);
- }
-
put_page(backing->pcmd);
put_page(backing->contents);
}
diff --git a/arch/x86/kernel/cpu/sgx/encl.h b/arch/x86/kernel/cpu/sgx/encl.h
index fec43ca65065..d44e7372151f 100644
--- a/arch/x86/kernel/cpu/sgx/encl.h
+++ b/arch/x86/kernel/cpu/sgx/encl.h
@@ -107,7 +107,7 @@ void sgx_encl_release(struct kref *ref);
int sgx_encl_mm_add(struct sgx_encl *encl, struct mm_struct *mm);
int sgx_encl_get_backing(struct sgx_encl *encl, unsigned long page_index,
struct sgx_backing *backing);
-void sgx_encl_put_backing(struct sgx_backing *backing, bool do_write);
+void sgx_encl_put_backing(struct sgx_backing *backing);
int sgx_encl_test_and_clear_young(struct mm_struct *mm,
struct sgx_encl_page *page);

diff --git a/arch/x86/kernel/cpu/sgx/main.c b/arch/x86/kernel/cpu/sgx/main.c
index 8471a8b9b48e..00e09a2b933a 100644
--- a/arch/x86/kernel/cpu/sgx/main.c
+++ b/arch/x86/kernel/cpu/sgx/main.c
@@ -170,6 +170,8 @@ static int __sgx_encl_ewb(struct sgx_epc_page *epc_page, void *va_slot,
backing->pcmd_offset;

ret = __ewb(&pginfo, sgx_get_epc_virt_addr(epc_page), va_slot);
+ set_page_dirty(backing->pcmd);
+ set_page_dirty(backing->contents);

kunmap_atomic((void *)(unsigned long)(pginfo.metadata -
backing->pcmd_offset));
@@ -287,6 +289,7 @@ static void sgx_reclaimer_write(struct sgx_epc_page *epc_page,
sgx_encl_ewb(epc_page, backing);
encl_page->epc_page = NULL;
encl->secs_child_cnt--;
+ sgx_encl_put_backing(backing);

if (!encl->secs_child_cnt && test_bit(SGX_ENCL_INITIALIZED, &encl->flags)) {
ret = sgx_encl_get_backing(encl, PFN_DOWN(encl->size),
@@ -299,7 +302,7 @@ static void sgx_reclaimer_write(struct sgx_epc_page *epc_page,
sgx_encl_free_epc_page(encl->secs.epc_page);
encl->secs.epc_page = NULL;

- sgx_encl_put_backing(&secs_backing, true);
+ sgx_encl_put_backing(&secs_backing);
}

out:
@@ -360,11 +363,14 @@ static void sgx_reclaim_pages(void)
goto skip;

page_index = PFN_DOWN(encl_page->desc - encl_page->encl->base);
+
+ mutex_lock(&encl_page->encl->lock);
ret = sgx_encl_get_backing(encl_page->encl, page_index, &backing[i]);
- if (ret)
+ if (ret) {
+ mutex_unlock(&encl_page->encl->lock);
goto skip;
+ }

- mutex_lock(&encl_page->encl->lock);
encl_page->desc |= SGX_ENCL_PAGE_BEING_RECLAIMED;
mutex_unlock(&encl_page->encl->lock);
continue;
@@ -392,7 +398,6 @@ static void sgx_reclaim_pages(void)

encl_page = epc_page->owner;
sgx_reclaimer_write(epc_page, &backing[i]);
- sgx_encl_put_backing(&backing[i], true);

kref_put(&encl_page->encl->refcount, sgx_encl_release);
epc_page->flags &= ~SGX_EPC_PAGE_RECLAIMER_TRACKED;
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index d36b58e705b6..9e3af56747e8 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -188,7 +188,7 @@ void kvm_async_pf_task_wake(u32 token)
{
u32 key = hash_32(token, KVM_TASK_SLEEP_HASHBITS);
struct kvm_task_sleep_head *b = &async_pf_sleepers[key];
- struct kvm_task_sleep_node *n;
+ struct kvm_task_sleep_node *n, *dummy = NULL;

if (token == ~0) {
apf_task_wake_all();
@@ -200,28 +200,41 @@ void kvm_async_pf_task_wake(u32 token)
n = _find_apf_task(b, token);
if (!n) {
/*
- * async PF was not yet handled.
- * Add dummy entry for the token.
+ * Async #PF not yet handled, add a dummy entry for the token.
+ * Allocating the token must be down outside of the raw lock
+ * as the allocator is preemptible on PREEMPT_RT kernels.
*/
- n = kzalloc(sizeof(*n), GFP_ATOMIC);
- if (!n) {
+ if (!dummy) {
+ raw_spin_unlock(&b->lock);
+ dummy = kzalloc(sizeof(*dummy), GFP_ATOMIC);
+
/*
- * Allocation failed! Busy wait while other cpu
- * handles async PF.
+ * Continue looping on allocation failure, eventually
+ * the async #PF will be handled and allocating a new
+ * node will be unnecessary.
+ */
+ if (!dummy)
+ cpu_relax();
+
+ /*
+ * Recheck for async #PF completion before enqueueing
+ * the dummy token to avoid duplicate list entries.
*/
- raw_spin_unlock(&b->lock);
- cpu_relax();
goto again;
}
- n->token = token;
- n->cpu = smp_processor_id();
- init_swait_queue_head(&n->wq);
- hlist_add_head(&n->link, &b->list);
+ dummy->token = token;
+ dummy->cpu = smp_processor_id();
+ init_swait_queue_head(&dummy->wq);
+ hlist_add_head(&dummy->link, &b->list);
+ dummy = NULL;
} else {
apf_task_wake_one(n);
}
raw_spin_unlock(&b->lock);
- return;
+
+ /* A dummy token might be allocated and ultimately not used. */
+ if (dummy)
+ kfree(dummy);
}
EXPORT_SYMBOL_GPL(kvm_async_pf_task_wake);

diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index 556e7a3f3562..993daa6fb128 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -750,9 +750,6 @@ int nested_svm_vmexit(struct vcpu_svm *svm)
struct kvm_host_map map;
int rc;

- /* Triple faults in L2 should never escape. */
- WARN_ON_ONCE(kvm_check_request(KVM_REQ_TRIPLE_FAULT, vcpu));
-
rc = kvm_vcpu_map(vcpu, gpa_to_gfn(svm->nested.vmcb12_gpa), &map);
if (rc) {
if (rc == -EINVAL)
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index c8c321225061..4a4dc105552e 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -676,7 +676,7 @@ static int sev_launch_measure(struct kvm *kvm, struct kvm_sev_cmd *argp)
if (params.len > SEV_FW_BLOB_MAX_SIZE)
return -EINVAL;

- blob = kmalloc(params.len, GFP_KERNEL_ACCOUNT);
+ blob = kzalloc(params.len, GFP_KERNEL_ACCOUNT);
if (!blob)
return -ENOMEM;

@@ -796,7 +796,7 @@ static int __sev_dbg_decrypt_user(struct kvm *kvm, unsigned long paddr,
if (!IS_ALIGNED(dst_paddr, 16) ||
!IS_ALIGNED(paddr, 16) ||
!IS_ALIGNED(size, 16)) {
- tpage = (void *)alloc_page(GFP_KERNEL);
+ tpage = (void *)alloc_page(GFP_KERNEL | __GFP_ZERO);
if (!tpage)
return -ENOMEM;

@@ -1082,7 +1082,7 @@ static int sev_get_attestation_report(struct kvm *kvm, struct kvm_sev_cmd *argp)
if (params.len > SEV_FW_BLOB_MAX_SIZE)
return -EINVAL;

- blob = kmalloc(params.len, GFP_KERNEL_ACCOUNT);
+ blob = kzalloc(params.len, GFP_KERNEL_ACCOUNT);
if (!blob)
return -ENOMEM;

@@ -1164,7 +1164,7 @@ static int sev_send_start(struct kvm *kvm, struct kvm_sev_cmd *argp)
return -EINVAL;

/* allocate the memory to hold the session data blob */
- session_data = kmalloc(params.session_len, GFP_KERNEL_ACCOUNT);
+ session_data = kzalloc(params.session_len, GFP_KERNEL_ACCOUNT);
if (!session_data)
return -ENOMEM;

@@ -1288,11 +1288,11 @@ static int sev_send_update_data(struct kvm *kvm, struct kvm_sev_cmd *argp)

/* allocate memory for header and transport buffer */
ret = -ENOMEM;
- hdr = kmalloc(params.hdr_len, GFP_KERNEL_ACCOUNT);
+ hdr = kzalloc(params.hdr_len, GFP_KERNEL_ACCOUNT);
if (!hdr)
goto e_unpin;

- trans_data = kmalloc(params.trans_len, GFP_KERNEL_ACCOUNT);
+ trans_data = kzalloc(params.trans_len, GFP_KERNEL_ACCOUNT);
if (!trans_data)
goto e_free_hdr;

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 1546a10ecb56..5eae69c8123b 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -4501,9 +4501,6 @@ void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 vm_exit_reason,
/* trying to cancel vmlaunch/vmresume is a bug */
WARN_ON_ONCE(vmx->nested.nested_run_pending);

- /* Similarly, triple faults in L2 should never escape. */
- WARN_ON_ONCE(kvm_check_request(KVM_REQ_TRIPLE_FAULT, vcpu));
-
if (kvm_check_request(KVM_REQ_GET_NESTED_STATE_PAGES, vcpu)) {
/*
* KVM_REQ_GET_NESTED_STATE_PAGES is also used to map
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 75da9c0d5ae3..23905ba3058a 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7846,7 +7846,7 @@ int kvm_skip_emulated_instruction(struct kvm_vcpu *vcpu)
}
EXPORT_SYMBOL_GPL(kvm_skip_emulated_instruction);

-static bool kvm_vcpu_check_breakpoint(struct kvm_vcpu *vcpu, int *r)
+static bool kvm_vcpu_check_code_breakpoint(struct kvm_vcpu *vcpu, int *r)
{
if (unlikely(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) &&
(vcpu->arch.guest_debug_dr7 & DR7_BP_EN_MASK)) {
@@ -7915,25 +7915,23 @@ static bool is_vmware_backdoor_opcode(struct x86_emulate_ctxt *ctxt)
}

/*
- * Decode to be emulated instruction. Return EMULATION_OK if success.
+ * Decode an instruction for emulation. The caller is responsible for handling
+ * code breakpoints. Note, manually detecting code breakpoints is unnecessary
+ * (and wrong) when emulating on an intercepted fault-like exception[*], as
+ * code breakpoints have higher priority and thus have already been done by
+ * hardware.
+ *
+ * [*] Except #MC, which is higher priority, but KVM should never emulate in
+ * response to a machine check.
*/
int x86_decode_emulated_instruction(struct kvm_vcpu *vcpu, int emulation_type,
void *insn, int insn_len)
{
- int r = EMULATION_OK;
struct x86_emulate_ctxt *ctxt = vcpu->arch.emulate_ctxt;
+ int r;

init_emulate_ctxt(vcpu);

- /*
- * We will reenter on the same instruction since we do not set
- * complete_userspace_io. This does not handle watchpoints yet,
- * those would be handled in the emulate_ops.
- */
- if (!(emulation_type & EMULTYPE_SKIP) &&
- kvm_vcpu_check_breakpoint(vcpu, &r))
- return r;
-
r = x86_decode_insn(ctxt, insn, insn_len, emulation_type);

trace_kvm_emulate_insn_start(vcpu);
@@ -7966,6 +7964,15 @@ int x86_emulate_instruction(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa,
if (!(emulation_type & EMULTYPE_NO_DECODE)) {
kvm_clear_exception_queue(vcpu);

+ /*
+ * Return immediately if RIP hits a code breakpoint, such #DBs
+ * are fault-like and are higher priority than any faults on
+ * the code fetch itself.
+ */
+ if (!(emulation_type & EMULTYPE_SKIP) &&
+ kvm_vcpu_check_code_breakpoint(vcpu, &r))
+ return r;
+
r = x86_decode_emulated_instruction(vcpu, emulation_type,
insn, insn_len);
if (r != EMULATION_OK) {
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 55718de56137..a346b6f74bb3 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1924,5 +1924,3 @@ source "crypto/asymmetric_keys/Kconfig"
source "certs/Kconfig"

endif # if CRYPTO
-
-source "lib/crypto/Kconfig"
diff --git a/crypto/drbg.c b/crypto/drbg.c
index 03c9ef768c22..761104e93d44 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1036,17 +1036,38 @@ static const struct drbg_state_ops drbg_hash_ops = {
******************************************************************/

static inline int __drbg_seed(struct drbg_state *drbg, struct list_head *seed,
- int reseed)
+ int reseed, enum drbg_seed_state new_seed_state)
{
int ret = drbg->d_ops->update(drbg, seed, reseed);

if (ret)
return ret;

- drbg->seeded = true;
+ drbg->seeded = new_seed_state;
/* 10.1.1.2 / 10.1.1.3 step 5 */
drbg->reseed_ctr = 1;

+ switch (drbg->seeded) {
+ case DRBG_SEED_STATE_UNSEEDED:
+ /* Impossible, but handle it to silence compiler warnings. */
+ fallthrough;
+ case DRBG_SEED_STATE_PARTIAL:
+ /*
+ * Require frequent reseeds until the seed source is
+ * fully initialized.
+ */
+ drbg->reseed_threshold = 50;
+ break;
+
+ case DRBG_SEED_STATE_FULL:
+ /*
+ * Seed source has become fully initialized, frequent
+ * reseeds no longer required.
+ */
+ drbg->reseed_threshold = drbg_max_requests(drbg);
+ break;
+ }
+
return ret;
}

@@ -1066,12 +1087,10 @@ static inline int drbg_get_random_bytes(struct drbg_state *drbg,
return 0;
}

-static void drbg_async_seed(struct work_struct *work)
+static int drbg_seed_from_random(struct drbg_state *drbg)
{
struct drbg_string data;
LIST_HEAD(seedlist);
- struct drbg_state *drbg = container_of(work, struct drbg_state,
- seed_work);
unsigned int entropylen = drbg_sec_strength(drbg->core->flags);
unsigned char entropy[32];
int ret;
@@ -1082,26 +1101,15 @@ static void drbg_async_seed(struct work_struct *work)
drbg_string_fill(&data, entropy, entropylen);
list_add_tail(&data.list, &seedlist);

- mutex_lock(&drbg->drbg_mutex);
-
ret = drbg_get_random_bytes(drbg, entropy, entropylen);
if (ret)
- goto unlock;
-
- /* Set seeded to false so that if __drbg_seed fails the
- * next generate call will trigger a reseed.
- */
- drbg->seeded = false;
-
- __drbg_seed(drbg, &seedlist, true);
-
- if (drbg->seeded)
- drbg->reseed_threshold = drbg_max_requests(drbg);
+ goto out;

-unlock:
- mutex_unlock(&drbg->drbg_mutex);
+ ret = __drbg_seed(drbg, &seedlist, true, DRBG_SEED_STATE_FULL);

+out:
memzero_explicit(entropy, entropylen);
+ return ret;
}

/*
@@ -1123,6 +1131,7 @@ static int drbg_seed(struct drbg_state *drbg, struct drbg_string *pers,
unsigned int entropylen = drbg_sec_strength(drbg->core->flags);
struct drbg_string data1;
LIST_HEAD(seedlist);
+ enum drbg_seed_state new_seed_state = DRBG_SEED_STATE_FULL;

/* 9.1 / 9.2 / 9.3.1 step 3 */
if (pers && pers->len > (drbg_max_addtl(drbg))) {
@@ -1150,6 +1159,9 @@ static int drbg_seed(struct drbg_state *drbg, struct drbg_string *pers,
BUG_ON((entropylen * 2) > sizeof(entropy));

/* Get seed from in-kernel /dev/urandom */
+ if (!rng_is_initialized())
+ new_seed_state = DRBG_SEED_STATE_PARTIAL;
+
ret = drbg_get_random_bytes(drbg, entropy, entropylen);
if (ret)
goto out;
@@ -1206,7 +1218,7 @@ static int drbg_seed(struct drbg_state *drbg, struct drbg_string *pers,
memset(drbg->C, 0, drbg_statelen(drbg));
}

- ret = __drbg_seed(drbg, &seedlist, reseed);
+ ret = __drbg_seed(drbg, &seedlist, reseed, new_seed_state);

out:
memzero_explicit(entropy, entropylen * 2);
@@ -1386,19 +1398,25 @@ static int drbg_generate(struct drbg_state *drbg,
* here. The spec is a bit convoluted here, we make it simpler.
*/
if (drbg->reseed_threshold < drbg->reseed_ctr)
- drbg->seeded = false;
+ drbg->seeded = DRBG_SEED_STATE_UNSEEDED;

- if (drbg->pr || !drbg->seeded) {
+ if (drbg->pr || drbg->seeded == DRBG_SEED_STATE_UNSEEDED) {
pr_devel("DRBG: reseeding before generation (prediction "
"resistance: %s, state %s)\n",
drbg->pr ? "true" : "false",
- drbg->seeded ? "seeded" : "unseeded");
+ (drbg->seeded == DRBG_SEED_STATE_FULL ?
+ "seeded" : "unseeded"));
/* 9.3.1 steps 7.1 through 7.3 */
len = drbg_seed(drbg, addtl, true);
if (len)
goto err;
/* 9.3.1 step 7.4 */
addtl = NULL;
+ } else if (rng_is_initialized() &&
+ drbg->seeded == DRBG_SEED_STATE_PARTIAL) {
+ len = drbg_seed_from_random(drbg);
+ if (len)
+ goto err;
}

if (addtl && 0 < addtl->len)
@@ -1491,50 +1509,15 @@ static int drbg_generate_long(struct drbg_state *drbg,
return 0;
}

-static int drbg_schedule_async_seed(struct notifier_block *nb, unsigned long action, void *data)
-{
- struct drbg_state *drbg = container_of(nb, struct drbg_state,
- random_ready);
-
- schedule_work(&drbg->seed_work);
- return 0;
-}
-
static int drbg_prepare_hrng(struct drbg_state *drbg)
{
- int err;
-
/* We do not need an HRNG in test mode. */
if (list_empty(&drbg->test_data.list))
return 0;

drbg->jent = crypto_alloc_rng("jitterentropy_rng", 0, 0);

- INIT_WORK(&drbg->seed_work, drbg_async_seed);
-
- drbg->random_ready.notifier_call = drbg_schedule_async_seed;
- err = register_random_ready_notifier(&drbg->random_ready);
-
- switch (err) {
- case 0:
- break;
-
- case -EALREADY:
- err = 0;
- fallthrough;
-
- default:
- drbg->random_ready.notifier_call = NULL;
- return err;
- }
-
- /*
- * Require frequent reseeds until the seed source is fully
- * initialized.
- */
- drbg->reseed_threshold = 50;
-
- return err;
+ return 0;
}

/*
@@ -1577,7 +1560,7 @@ static int drbg_instantiate(struct drbg_state *drbg, struct drbg_string *pers,
if (!drbg->core) {
drbg->core = &drbg_cores[coreref];
drbg->pr = pr;
- drbg->seeded = false;
+ drbg->seeded = DRBG_SEED_STATE_UNSEEDED;
drbg->reseed_threshold = drbg_max_requests(drbg);

ret = drbg_alloc_state(drbg);
@@ -1628,11 +1611,6 @@ static int drbg_instantiate(struct drbg_state *drbg, struct drbg_string *pers,
*/
static int drbg_uninstantiate(struct drbg_state *drbg)
{
- if (drbg->random_ready.notifier_call) {
- unregister_random_ready_notifier(&drbg->random_ready);
- cancel_work_sync(&drbg->seed_work);
- }
-
if (!IS_ERR_OR_NULL(drbg->jent))
crypto_free_rng(drbg->jent);
drbg->jent = NULL;
diff --git a/crypto/ecrdsa.c b/crypto/ecrdsa.c
index 6a3fd09057d0..f7ed43020672 100644
--- a/crypto/ecrdsa.c
+++ b/crypto/ecrdsa.c
@@ -113,15 +113,15 @@ static int ecrdsa_verify(struct akcipher_request *req)

/* Step 1: verify that 0 < r < q, 0 < s < q */
if (vli_is_zero(r, ndigits) ||
- vli_cmp(r, ctx->curve->n, ndigits) == 1 ||
+ vli_cmp(r, ctx->curve->n, ndigits) >= 0 ||
vli_is_zero(s, ndigits) ||
- vli_cmp(s, ctx->curve->n, ndigits) == 1)
+ vli_cmp(s, ctx->curve->n, ndigits) >= 0)
return -EKEYREJECTED;

/* Step 2: calculate hash (h) of the message (passed as input) */
/* Step 3: calculate e = h \mod q */
vli_from_le64(e, digest, ndigits);
- if (vli_cmp(e, ctx->curve->n, ndigits) == 1)
+ if (vli_cmp(e, ctx->curve->n, ndigits) >= 0)
vli_sub(e, e, ctx->curve->n, ndigits);
if (vli_is_zero(e, ndigits))
e[0] = 1;
@@ -137,7 +137,7 @@ static int ecrdsa_verify(struct akcipher_request *req)
/* Step 6: calculate point C = z_1P + z_2Q, and R = x_c \mod q */
ecc_point_mult_shamir(&cc, z1, &ctx->curve->g, z2, &ctx->pub_key,
ctx->curve);
- if (vli_cmp(cc.x, ctx->curve->n, ndigits) == 1)
+ if (vli_cmp(cc.x, ctx->curve->n, ndigits) >= 0)
vli_sub(cc.x, cc.x, ctx->curve->n, ndigits);

/* Step 7: if R == r signature is valid */
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 8eb7fddfb930..ed91af4319b5 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -696,9 +696,9 @@ static int qca_close(struct hci_uart *hu)
skb_queue_purge(&qca->tx_wait_q);
skb_queue_purge(&qca->txq);
skb_queue_purge(&qca->rx_memdump_q);
- del_timer(&qca->tx_idle_timer);
- del_timer(&qca->wake_retrans_timer);
destroy_workqueue(qca->workqueue);
+ del_timer_sync(&qca->tx_idle_timer);
+ del_timer_sync(&qca->wake_retrans_timer);
qca->hu = NULL;

kfree_skb(qca->rx_skb);
diff --git a/drivers/char/random.c b/drivers/char/random.c
index ca17a658c214..e2f1fce8dc97 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -163,7 +163,6 @@ int __cold register_random_ready_notifier(struct notifier_block *nb)
spin_unlock_irqrestore(&random_ready_chain_lock, flags);
return ret;
}
-EXPORT_SYMBOL(register_random_ready_notifier);

/*
* Delete a previously registered readiness callback function.
@@ -178,7 +177,6 @@ int __cold unregister_random_ready_notifier(struct notifier_block *nb)
spin_unlock_irqrestore(&random_ready_chain_lock, flags);
return ret;
}
-EXPORT_SYMBOL(unregister_random_ready_notifier);

static void __cold process_random_ready_list(void)
{
diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c
index a25815a6f625..de92065394be 100644
--- a/drivers/char/tpm/tpm2-cmd.c
+++ b/drivers/char/tpm/tpm2-cmd.c
@@ -400,7 +400,16 @@ ssize_t tpm2_get_tpm_pt(struct tpm_chip *chip, u32 property_id, u32 *value,
if (!rc) {
out = (struct tpm2_get_cap_out *)
&buf.data[TPM_HEADER_SIZE];
- *value = be32_to_cpu(out->value);
+ /*
+ * To prevent failing boot up of some systems, Infineon TPM2.0
+ * returns SUCCESS on TPM2_Startup in field upgrade mode. Also
+ * the TPM2_Getcapability command returns a zero length list
+ * in field upgrade mode.
+ */
+ if (be32_to_cpu(out->property_cnt) > 0)
+ *value = be32_to_cpu(out->value);
+ else
+ rc = -ENODATA;
}
tpm_buf_destroy(&buf);
return rc;
diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
index 3af4c07a9342..d3989b257f42 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -681,6 +681,7 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
if (!wait_event_timeout(ibmvtpm->crq_queue.wq,
ibmvtpm->rtce_buf != NULL,
HZ)) {
+ rc = -ENODEV;
dev_err(dev, "CRQ response timed out\n");
goto init_irq_cleanup;
}
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index ca0361b2dbb0..f87aa2169e5f 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -609,6 +609,13 @@ static bool check_version(struct fsl_mc_version *mc_version, u32 major,
}
#endif

+static bool needs_entropy_delay_adjustment(void)
+{
+ if (of_machine_is_compatible("fsl,imx6sx"))
+ return true;
+ return false;
+}
+
/* Probe routine for CAAM top (controller) level */
static int caam_probe(struct platform_device *pdev)
{
@@ -855,6 +862,8 @@ static int caam_probe(struct platform_device *pdev)
* Also, if a handle was instantiated, do not change
* the TRNG parameters.
*/
+ if (needs_entropy_delay_adjustment())
+ ent_delay = 12000;
if (!(ctrlpriv->rng4_sh_init || inst_handles)) {
dev_info(dev,
"Entropy delay = %u\n",
@@ -871,6 +880,15 @@ static int caam_probe(struct platform_device *pdev)
*/
ret = instantiate_rng(dev, inst_handles,
gen_sk);
+ /*
+ * Entropy delay is determined via TRNG characterization.
+ * TRNG characterization is run across different voltages
+ * and temperatures.
+ * If worst case value for ent_dly is identified,
+ * the loop can be skipped for that platform.
+ */
+ if (needs_entropy_delay_adjustment())
+ break;
if (ret == -EAGAIN)
/*
* if here, the loop will rerun,
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 57c1dda76b94..1a27e4833adf 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2863,7 +2863,7 @@ static void ilk_compute_wm_level(const struct drm_i915_private *dev_priv,
}

static void intel_read_wm_latency(struct drm_i915_private *dev_priv,
- u16 wm[8])
+ u16 wm[])
{
struct intel_uncore *uncore = &dev_priv->uncore;

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 645a5f566d23..42b5b050b72d 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -753,6 +753,7 @@
#define USB_DEVICE_ID_LENOVO_X1_COVER 0x6085
#define USB_DEVICE_ID_LENOVO_X1_TAB 0x60a3
#define USB_DEVICE_ID_LENOVO_X1_TAB3 0x60b5
+#define USB_DEVICE_ID_LENOVO_X12_TAB 0x60fe
#define USB_DEVICE_ID_LENOVO_OPTICAL_USB_MOUSE_600E 0x600e
#define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_608D 0x608d
#define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_6019 0x6019
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index e1afddb7b33d..f382444dc2db 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -2032,6 +2032,12 @@ static const struct hid_device_id mt_devices[] = {
USB_VENDOR_ID_LENOVO,
USB_DEVICE_ID_LENOVO_X1_TAB3) },

+ /* Lenovo X12 TAB Gen 1 */
+ { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
+ HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8,
+ USB_VENDOR_ID_LENOVO,
+ USB_DEVICE_ID_LENOVO_X12_TAB) },
+
/* MosArt panels */
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
@@ -2176,6 +2182,9 @@ static const struct hid_device_id mt_devices[] = {
{ .driver_data = MT_CLS_GOOGLE,
HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_GOOGLE,
USB_DEVICE_ID_GOOGLE_TOUCH_ROSE) },
+ { .driver_data = MT_CLS_GOOGLE,
+ HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_GOOGLE,
+ USB_DEVICE_ID_GOOGLE_WHISKERS) },

/* Generic MT device */
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
diff --git a/drivers/i2c/busses/i2c-ismt.c b/drivers/i2c/busses/i2c-ismt.c
index a6187cbec2c9..483428c5e30b 100644
--- a/drivers/i2c/busses/i2c-ismt.c
+++ b/drivers/i2c/busses/i2c-ismt.c
@@ -82,6 +82,7 @@

#define ISMT_DESC_ENTRIES 2 /* number of descriptor entries */
#define ISMT_MAX_RETRIES 3 /* number of SMBus retries to attempt */
+#define ISMT_LOG_ENTRIES 3 /* number of interrupt cause log entries */

/* Hardware Descriptor Constants - Control Field */
#define ISMT_DESC_CWRL 0x01 /* Command/Write Length */
@@ -175,6 +176,8 @@ struct ismt_priv {
u8 head; /* ring buffer head pointer */
struct completion cmp; /* interrupt completion */
u8 buffer[I2C_SMBUS_BLOCK_MAX + 16]; /* temp R/W data buffer */
+ dma_addr_t log_dma;
+ u32 *log;
};

static const struct pci_device_id ismt_ids[] = {
@@ -411,6 +414,9 @@ static int ismt_access(struct i2c_adapter *adap, u16 addr,
memset(desc, 0, sizeof(struct ismt_desc));
desc->tgtaddr_rw = ISMT_DESC_ADDR_RW(addr, read_write);

+ /* Always clear the log entries */
+ memset(priv->log, 0, ISMT_LOG_ENTRIES * sizeof(u32));
+
/* Initialize common control bits */
if (likely(pci_dev_msi_enabled(priv->pci_dev)))
desc->control = ISMT_DESC_INT | ISMT_DESC_FAIR;
@@ -522,6 +528,9 @@ static int ismt_access(struct i2c_adapter *adap, u16 addr,

case I2C_SMBUS_BLOCK_PROC_CALL:
dev_dbg(dev, "I2C_SMBUS_BLOCK_PROC_CALL\n");
+ if (data->block[0] > I2C_SMBUS_BLOCK_MAX)
+ return -EINVAL;
+
dma_size = I2C_SMBUS_BLOCK_MAX;
desc->tgtaddr_rw = ISMT_DESC_ADDR_RW(addr, 1);
desc->wr_len_cmd = data->block[0] + 1;
@@ -708,6 +717,8 @@ static void ismt_hw_init(struct ismt_priv *priv)
/* initialize the Master Descriptor Base Address (MDBA) */
writeq(priv->io_rng_dma, priv->smba + ISMT_MSTR_MDBA);

+ writeq(priv->log_dma, priv->smba + ISMT_GR_SMTICL);
+
/* initialize the Master Control Register (MCTRL) */
writel(ISMT_MCTRL_MEIE, priv->smba + ISMT_MSTR_MCTRL);

@@ -795,6 +806,12 @@ static int ismt_dev_init(struct ismt_priv *priv)
priv->head = 0;
init_completion(&priv->cmp);

+ priv->log = dmam_alloc_coherent(&priv->pci_dev->dev,
+ ISMT_LOG_ENTRIES * sizeof(u32),
+ &priv->log_dma, GFP_KERNEL);
+ if (!priv->log)
+ return -ENOMEM;
+
return 0;
}

diff --git a/drivers/i2c/busses/i2c-thunderx-pcidrv.c b/drivers/i2c/busses/i2c-thunderx-pcidrv.c
index 12c90aa0900e..a77cd86fe75e 100644
--- a/drivers/i2c/busses/i2c-thunderx-pcidrv.c
+++ b/drivers/i2c/busses/i2c-thunderx-pcidrv.c
@@ -213,6 +213,7 @@ static int thunder_i2c_probe_pci(struct pci_dev *pdev,
i2c->adap.bus_recovery_info = &octeon_i2c_recovery_info;
i2c->adap.dev.parent = dev;
i2c->adap.dev.of_node = pdev->dev.of_node;
+ i2c->adap.dev.fwnode = dev->fwnode;
snprintf(i2c->adap.name, sizeof(i2c->adap.name),
"Cavium ThunderX i2c adapter at %s", dev_name(dev));
i2c_set_adapdata(&i2c->adap, i2c);
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 154139bf7d22..f30fd38c3773 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -3435,6 +3435,11 @@ static int crypt_map(struct dm_target *ti, struct bio *bio)
return DM_MAPIO_SUBMITTED;
}

+static char hex2asc(unsigned char c)
+{
+ return c + '0' + ((unsigned)(9 - c) >> 4 & 0x27);
+}
+
static void crypt_status(struct dm_target *ti, status_type_t type,
unsigned status_flags, char *result, unsigned maxlen)
{
@@ -3453,9 +3458,12 @@ static void crypt_status(struct dm_target *ti, status_type_t type,
if (cc->key_size > 0) {
if (cc->key_string)
DMEMIT(":%u:%s", cc->key_size, cc->key_string);
- else
- for (i = 0; i < cc->key_size; i++)
- DMEMIT("%02x", cc->key[i]);
+ else {
+ for (i = 0; i < cc->key_size; i++) {
+ DMEMIT("%c%c", hex2asc(cc->key[i] >> 4),
+ hex2asc(cc->key[i] & 0xf));
+ }
+ }
} else
DMEMIT("-");

diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index e2a51c184a25..d5b827086962 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -4478,8 +4478,6 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned argc, char **argv)
}

if (should_write_sb) {
- int r;
-
init_journal(ic, 0, ic->journal_sections, 0);
r = dm_integrity_failed(ic);
if (unlikely(r)) {
diff --git a/drivers/md/dm-stats.c b/drivers/md/dm-stats.c
index 0e039a8c0bf2..a3f2050b9c9b 100644
--- a/drivers/md/dm-stats.c
+++ b/drivers/md/dm-stats.c
@@ -225,6 +225,7 @@ void dm_stats_cleanup(struct dm_stats *stats)
atomic_read(&shared->in_flight[READ]),
atomic_read(&shared->in_flight[WRITE]));
}
+ cond_resched();
}
dm_stat_free(&s->rcu_head);
}
@@ -330,6 +331,7 @@ static int dm_stats_create(struct dm_stats *stats, sector_t start, sector_t end,
for (ni = 0; ni < n_entries; ni++) {
atomic_set(&s->stat_shared[ni].in_flight[READ], 0);
atomic_set(&s->stat_shared[ni].in_flight[WRITE], 0);
+ cond_resched();
}

if (s->n_histogram_entries) {
@@ -342,6 +344,7 @@ static int dm_stats_create(struct dm_stats *stats, sector_t start, sector_t end,
for (ni = 0; ni < n_entries; ni++) {
s->stat_shared[ni].tmp.histogram = hi;
hi += s->n_histogram_entries + 1;
+ cond_resched();
}
}

@@ -362,6 +365,7 @@ static int dm_stats_create(struct dm_stats *stats, sector_t start, sector_t end,
for (ni = 0; ni < n_entries; ni++) {
p[ni].histogram = hi;
hi += s->n_histogram_entries + 1;
+ cond_resched();
}
}
}
@@ -497,6 +501,7 @@ static int dm_stats_list(struct dm_stats *stats, const char *program,
}
DMEMIT("\n");
}
+ cond_resched();
}
mutex_unlock(&stats->mutex);

@@ -774,6 +779,7 @@ static void __dm_stat_clear(struct dm_stat *s, size_t idx_start, size_t idx_end,
local_irq_enable();
}
}
+ cond_resched();
}
}

@@ -889,6 +895,8 @@ static int dm_stats_print(struct dm_stats *stats, int id,

if (unlikely(sz + 1 >= maxlen))
goto buffer_overflow;
+
+ cond_resched();
}

if (clear)
diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index 88288c8d6bc8..426299ceb33d 100644
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -1312,6 +1312,7 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv)

static struct target_type verity_target = {
.name = "verity",
+ .features = DM_TARGET_IMMUTABLE,
.version = {1, 8, 0},
.module = THIS_MODULE,
.ctr = verity_ctr,
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index b9d062f0a02b..e54d802ee0bb 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -686,17 +686,17 @@ int raid5_calc_degraded(struct r5conf *conf)
return degraded;
}

-static int has_failed(struct r5conf *conf)
+static bool has_failed(struct r5conf *conf)
{
- int degraded;
+ int degraded = conf->mddev->degraded;

- if (conf->mddev->reshape_position == MaxSector)
- return conf->mddev->degraded > conf->max_degraded;
+ if (test_bit(MD_BROKEN, &conf->mddev->flags))
+ return true;

- degraded = raid5_calc_degraded(conf);
- if (degraded > conf->max_degraded)
- return 1;
- return 0;
+ if (conf->mddev->reshape_position != MaxSector)
+ degraded = raid5_calc_degraded(conf);
+
+ return degraded > conf->max_degraded;
}

struct stripe_head *
@@ -2877,34 +2877,31 @@ static void raid5_error(struct mddev *mddev, struct md_rdev *rdev)
unsigned long flags;
pr_debug("raid456: error called\n");

+ pr_crit("md/raid:%s: Disk failure on %s, disabling device.\n",
+ mdname(mddev), bdevname(rdev->bdev, b));
+
spin_lock_irqsave(&conf->device_lock, flags);
+ set_bit(Faulty, &rdev->flags);
+ clear_bit(In_sync, &rdev->flags);
+ mddev->degraded = raid5_calc_degraded(conf);

- if (test_bit(In_sync, &rdev->flags) &&
- mddev->degraded == conf->max_degraded) {
- /*
- * Don't allow to achieve failed state
- * Don't try to recover this device
- */
+ if (has_failed(conf)) {
+ set_bit(MD_BROKEN, &conf->mddev->flags);
conf->recovery_disabled = mddev->recovery_disabled;
- spin_unlock_irqrestore(&conf->device_lock, flags);
- return;
+
+ pr_crit("md/raid:%s: Cannot continue operation (%d/%d failed).\n",
+ mdname(mddev), mddev->degraded, conf->raid_disks);
+ } else {
+ pr_crit("md/raid:%s: Operation continuing on %d devices.\n",
+ mdname(mddev), conf->raid_disks - mddev->degraded);
}

- set_bit(Faulty, &rdev->flags);
- clear_bit(In_sync, &rdev->flags);
- mddev->degraded = raid5_calc_degraded(conf);
spin_unlock_irqrestore(&conf->device_lock, flags);
set_bit(MD_RECOVERY_INTR, &mddev->recovery);

set_bit(Blocked, &rdev->flags);
set_mask_bits(&mddev->sb_flags, 0,
BIT(MD_SB_CHANGE_DEVS) | BIT(MD_SB_CHANGE_PENDING));
- pr_crit("md/raid:%s: Disk failure on %s, disabling device.\n"
- "md/raid:%s: Operation continuing on %d devices.\n",
- mdname(mddev),
- bdevname(rdev->bdev, b),
- mdname(mddev),
- conf->raid_disks - mddev->degraded);
r5c_update_on_rdev_error(mddev, rdev);
}

diff --git a/drivers/media/i2c/imx412.c b/drivers/media/i2c/imx412.c
index be3f6ea55559..84279a680873 100644
--- a/drivers/media/i2c/imx412.c
+++ b/drivers/media/i2c/imx412.c
@@ -1011,7 +1011,7 @@ static int imx412_power_on(struct device *dev)
struct imx412 *imx412 = to_imx412(sd);
int ret;

- gpiod_set_value_cansleep(imx412->reset_gpio, 1);
+ gpiod_set_value_cansleep(imx412->reset_gpio, 0);

ret = clk_prepare_enable(imx412->inclk);
if (ret) {
@@ -1024,7 +1024,7 @@ static int imx412_power_on(struct device *dev)
return 0;

error_reset:
- gpiod_set_value_cansleep(imx412->reset_gpio, 0);
+ gpiod_set_value_cansleep(imx412->reset_gpio, 1);

return ret;
}
@@ -1040,10 +1040,10 @@ static int imx412_power_off(struct device *dev)
struct v4l2_subdev *sd = dev_get_drvdata(dev);
struct imx412 *imx412 = to_imx412(sd);

- gpiod_set_value_cansleep(imx412->reset_gpio, 0);
-
clk_disable_unprepare(imx412->inclk);

+ gpiod_set_value_cansleep(imx412->reset_gpio, 1);
+
return 0;
}

diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index e1df2dc810a2..0b833572205f 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -1910,6 +1910,11 @@ static int ftgmac100_probe(struct platform_device *pdev)
/* AST2400 doesn't have working HW checksum generation */
if (np && (of_device_is_compatible(np, "aspeed,ast2400-mac")))
netdev->hw_features &= ~NETIF_F_HW_CSUM;
+
+ /* AST2600 tx checksum with NCSI is broken */
+ if (priv->use_ncsi && of_device_is_compatible(np, "aspeed,ast2600-mac"))
+ netdev->hw_features &= ~NETIF_F_HW_CSUM;
+
if (np && of_get_property(np, "no-hw-checksum", NULL))
netdev->hw_features &= ~(NETIF_F_HW_CSUM | NETIF_F_RXCSUM);
netdev->features |= netdev->hw_features;
diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index 87e42db1b61e..477eb4051bed 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -722,13 +722,15 @@ static void ipa_endpoint_init_aggr(struct ipa_endpoint *endpoint)

if (endpoint->data->aggregation) {
if (!endpoint->toward_ipa) {
+ u32 buffer_size;
bool close_eof;
u32 limit;

val |= u32_encode_bits(IPA_ENABLE_AGGR, AGGR_EN_FMASK);
val |= u32_encode_bits(IPA_GENERIC, AGGR_TYPE_FMASK);

- limit = ipa_aggr_size_kb(IPA_RX_BUFFER_SIZE);
+ buffer_size = IPA_RX_BUFFER_SIZE - NET_SKB_PAD;
+ limit = ipa_aggr_size_kb(buffer_size);
val |= aggr_byte_limit_encoded(version, limit);

limit = IPA_AGGR_TIME_LIMIT;
diff --git a/drivers/nfc/pn533/pn533.c b/drivers/nfc/pn533/pn533.c
index d32aec0c334f..6dc0af63440f 100644
--- a/drivers/nfc/pn533/pn533.c
+++ b/drivers/nfc/pn533/pn533.c
@@ -2789,13 +2789,14 @@ void pn53x_common_clean(struct pn533 *priv)
{
struct pn533_cmd *cmd, *n;

+ /* delete the timer before cleanup the worker */
+ del_timer_sync(&priv->listen_timer);
+
flush_delayed_work(&priv->poll_work);
destroy_workqueue(priv->wq);

skb_queue_purge(&priv->resp_q);

- del_timer(&priv->listen_timer);
-
list_for_each_entry_safe(cmd, n, &priv->cmd_queue, queue) {
list_del(&cmd->queue);
kfree(cmd);
diff --git a/drivers/pinctrl/sunxi/pinctrl-suniv-f1c100s.c b/drivers/pinctrl/sunxi/pinctrl-suniv-f1c100s.c
index 2801ca706273..68a5b627fb9b 100644
--- a/drivers/pinctrl/sunxi/pinctrl-suniv-f1c100s.c
+++ b/drivers/pinctrl/sunxi/pinctrl-suniv-f1c100s.c
@@ -204,7 +204,7 @@ static const struct sunxi_desc_pin suniv_f1c100s_pins[] = {
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "lcd"), /* D20 */
- SUNXI_FUNCTION(0x3, "lvds1"), /* RX */
+ SUNXI_FUNCTION(0x3, "uart2"), /* RX */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 14)),
SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 15),
SUNXI_FUNCTION(0x0, "gpio_in"),
diff --git a/fs/exfat/balloc.c b/fs/exfat/balloc.c
index cc5cffc4a769..e2113e0a848c 100644
--- a/fs/exfat/balloc.c
+++ b/fs/exfat/balloc.c
@@ -148,7 +148,9 @@ int exfat_set_bitmap(struct inode *inode, unsigned int clu, bool sync)
struct super_block *sb = inode->i_sb;
struct exfat_sb_info *sbi = EXFAT_SB(sb);

- WARN_ON(clu < EXFAT_FIRST_CLUSTER);
+ if (!is_valid_cluster(sbi, clu))
+ return -EINVAL;
+
ent_idx = CLUSTER_TO_BITMAP_ENT(clu);
i = BITMAP_OFFSET_SECTOR_INDEX(sb, ent_idx);
b = BITMAP_OFFSET_BIT_IN_SECTOR(sb, ent_idx);
@@ -166,7 +168,9 @@ void exfat_clear_bitmap(struct inode *inode, unsigned int clu, bool sync)
struct exfat_sb_info *sbi = EXFAT_SB(sb);
struct exfat_mount_options *opts = &sbi->options;

- WARN_ON(clu < EXFAT_FIRST_CLUSTER);
+ if (!is_valid_cluster(sbi, clu))
+ return;
+
ent_idx = CLUSTER_TO_BITMAP_ENT(clu);
i = BITMAP_OFFSET_SECTOR_INDEX(sb, ent_idx);
b = BITMAP_OFFSET_BIT_IN_SECTOR(sb, ent_idx);
diff --git a/fs/exfat/exfat_fs.h b/fs/exfat/exfat_fs.h
index 1d6da61157c9..9f82a8a835ee 100644
--- a/fs/exfat/exfat_fs.h
+++ b/fs/exfat/exfat_fs.h
@@ -381,6 +381,14 @@ static inline int exfat_sector_to_cluster(struct exfat_sb_info *sbi,
EXFAT_RESERVED_CLUSTERS;
}

+static inline bool is_valid_cluster(struct exfat_sb_info *sbi,
+ unsigned int clus)
+{
+ if (clus < EXFAT_FIRST_CLUSTER || sbi->num_clusters <= clus)
+ return false;
+ return true;
+}
+
/* super.c */
int exfat_set_volume_dirty(struct super_block *sb);
int exfat_clear_volume_dirty(struct super_block *sb);
diff --git a/fs/exfat/fatent.c b/fs/exfat/fatent.c
index e949e563443c..421c27353104 100644
--- a/fs/exfat/fatent.c
+++ b/fs/exfat/fatent.c
@@ -81,14 +81,6 @@ int exfat_ent_set(struct super_block *sb, unsigned int loc,
return 0;
}

-static inline bool is_valid_cluster(struct exfat_sb_info *sbi,
- unsigned int clus)
-{
- if (clus < EXFAT_FIRST_CLUSTER || sbi->num_clusters <= clus)
- return false;
- return true;
-}
-
int exfat_ent_get(struct super_block *sb, unsigned int loc,
unsigned int *content)
{
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index c8845242d422..fbfe293af72c 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -834,6 +834,7 @@ static inline bool nfs_error_is_fatal_on_server(int err)
case 0:
case -ERESTARTSYS:
case -EINTR:
+ case -ENOMEM:
return false;
}
return nfs_error_is_fatal(err);
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 181bc3d9f566..f9e2fa9cfbec 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -7299,16 +7299,12 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
if (sop->so_is_open_owner || !same_owner_str(sop, owner))
continue;

- /* see if there are still any locks associated with it */
- lo = lockowner(sop);
- list_for_each_entry(stp, &sop->so_stateids, st_perstateowner) {
- if (check_for_locks(stp->st_stid.sc_file, lo)) {
- status = nfserr_locks_held;
- spin_unlock(&clp->cl_lock);
- return status;
- }
+ if (atomic_read(&sop->so_count) != 1) {
+ spin_unlock(&clp->cl_lock);
+ return nfserr_locks_held;
}

+ lo = lockowner(sop);
nfs4_get_stateowner(sop);
break;
}
diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c
index d41d76979e12..7f85ec83e196 100644
--- a/fs/ntfs3/super.c
+++ b/fs/ntfs3/super.c
@@ -668,9 +668,11 @@ static u32 format_size_gb(const u64 bytes, u32 *mb)

static u32 true_sectors_per_clst(const struct NTFS_BOOT *boot)
{
- return boot->sectors_per_clusters <= 0x80
- ? boot->sectors_per_clusters
- : (1u << (0 - boot->sectors_per_clusters));
+ if (boot->sectors_per_clusters <= 0x80)
+ return boot->sectors_per_clusters;
+ if (boot->sectors_per_clusters >= 0xf4) /* limit shift to 2MB max */
+ return 1U << (0 - boot->sectors_per_clusters);
+ return -EINVAL;
}

/*
@@ -713,6 +715,8 @@ static int ntfs_init_from_boot(struct super_block *sb, u32 sector_size,

/* cluster size: 512, 1K, 2K, 4K, ... 2M */
sct_per_clst = true_sectors_per_clst(boot);
+ if ((int)sct_per_clst < 0)
+ goto out;
if (!is_power_of_2(sct_per_clst))
goto out;

diff --git a/fs/pipe.c b/fs/pipe.c
index 751d5b36c84b..e08f0fe55584 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -652,7 +652,7 @@ pipe_poll(struct file *filp, poll_table *wait)
unsigned int head, tail;

/* Epoll has some historical nasty semantics, this enables them */
- pipe->poll_usage = 1;
+ WRITE_ONCE(pipe->poll_usage, true);

/*
* Reading pipe state only -- no need for acquiring the semaphore.
@@ -1244,30 +1244,33 @@ unsigned int round_pipe_size(unsigned long size)

/*
* Resize the pipe ring to a number of slots.
+ *
+ * Note the pipe can be reduced in capacity, but only if the current
+ * occupancy doesn't exceed nr_slots; if it does, EBUSY will be
+ * returned instead.
*/
int pipe_resize_ring(struct pipe_inode_info *pipe, unsigned int nr_slots)
{
struct pipe_buffer *bufs;
unsigned int head, tail, mask, n;

- /*
- * We can shrink the pipe, if arg is greater than the ring occupancy.
- * Since we don't expect a lot of shrink+grow operations, just free and
- * allocate again like we would do for growing. If the pipe currently
- * contains more buffers than arg, then return busy.
- */
- mask = pipe->ring_size - 1;
- head = pipe->head;
- tail = pipe->tail;
- n = pipe_occupancy(pipe->head, pipe->tail);
- if (nr_slots < n)
- return -EBUSY;
-
bufs = kcalloc(nr_slots, sizeof(*bufs),
GFP_KERNEL_ACCOUNT | __GFP_NOWARN);
if (unlikely(!bufs))
return -ENOMEM;

+ spin_lock_irq(&pipe->rd_wait.lock);
+ mask = pipe->ring_size - 1;
+ head = pipe->head;
+ tail = pipe->tail;
+
+ n = pipe_occupancy(head, tail);
+ if (nr_slots < n) {
+ spin_unlock_irq(&pipe->rd_wait.lock);
+ kfree(bufs);
+ return -EBUSY;
+ }
+
/*
* The pipe array wraps around, so just start the new one at zero
* and adjust the indices.
@@ -1299,6 +1302,8 @@ int pipe_resize_ring(struct pipe_inode_info *pipe, unsigned int nr_slots)
pipe->tail = tail;
pipe->head = head;

+ spin_unlock_irq(&pipe->rd_wait.lock);
+
/* This might have made more room for writers */
wake_up_interruptible(&pipe->wr_wait);
return 0;
diff --git a/include/crypto/drbg.h b/include/crypto/drbg.h
index 88e4d145f7cd..a6c3b8e7deb6 100644
--- a/include/crypto/drbg.h
+++ b/include/crypto/drbg.h
@@ -105,6 +105,12 @@ struct drbg_test_data {
struct drbg_string *testentropy; /* TEST PARAMETER: test entropy */
};

+enum drbg_seed_state {
+ DRBG_SEED_STATE_UNSEEDED,
+ DRBG_SEED_STATE_PARTIAL, /* Seeded with !rng_is_initialized() */
+ DRBG_SEED_STATE_FULL,
+};
+
struct drbg_state {
struct mutex drbg_mutex; /* lock around DRBG */
unsigned char *V; /* internal state 10.1.1.1 1a) */
@@ -127,16 +133,14 @@ struct drbg_state {
struct crypto_wait ctr_wait; /* CTR mode async wait obj */
struct scatterlist sg_in, sg_out; /* CTR mode SGLs */

- bool seeded; /* DRBG fully seeded? */
+ enum drbg_seed_state seeded; /* DRBG fully seeded? */
bool pr; /* Prediction resistance enabled? */
bool fips_primed; /* Continuous test primed? */
unsigned char *prev; /* FIPS 140-2 continuous test value */
- struct work_struct seed_work; /* asynchronous seeding support */
struct crypto_rng *jent;
const struct drbg_state_ops *d_ops;
const struct drbg_core *core;
struct drbg_string test_data;
- struct notifier_block random_ready;
};

static inline __u8 drbg_statelen(struct drbg_state *drbg)
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index fc5642431b92..c0b6ec6bf65b 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -71,7 +71,7 @@ struct pipe_inode_info {
unsigned int files;
unsigned int r_counter;
unsigned int w_counter;
- unsigned int poll_usage;
+ bool poll_usage;
struct page *tmp_page;
struct fasync_struct *fasync_readers;
struct fasync_struct *fasync_writers;
diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h
index 13807ea94cd2..2d524782f53b 100644
--- a/include/net/netfilter/nf_conntrack_core.h
+++ b/include/net/netfilter/nf_conntrack_core.h
@@ -58,8 +58,13 @@ static inline int nf_conntrack_confirm(struct sk_buff *skb)
int ret = NF_ACCEPT;

if (ct) {
- if (!nf_ct_is_confirmed(ct))
+ if (!nf_ct_is_confirmed(ct)) {
ret = __nf_conntrack_confirm(skb);
+
+ if (ret == NF_ACCEPT)
+ ct = (struct nf_conn *)skb_nfct(skb);
+ }
+
if (likely(ret == NF_ACCEPT))
nf_ct_deliver_cached_events(ct);
}
diff --git a/kernel/bpf/stackmap.c b/kernel/bpf/stackmap.c
index fc0f77f91224..7efae3af6201 100644
--- a/kernel/bpf/stackmap.c
+++ b/kernel/bpf/stackmap.c
@@ -119,7 +119,6 @@ static struct bpf_map *stack_map_alloc(union bpf_attr *attr)
return ERR_PTR(-E2BIG);

cost = n_buckets * sizeof(struct stack_map_bucket *) + sizeof(*smap);
- cost += n_buckets * (value_size + sizeof(struct stack_map_bucket));
smap = bpf_map_area_alloc(cost, bpf_map_attr_numa_node(attr));
if (!smap)
return ERR_PTR(-ENOMEM);
diff --git a/kernel/bpf/trampoline.c b/kernel/bpf/trampoline.c
index 2660fbced9ad..4fa75791b45e 100644
--- a/kernel/bpf/trampoline.c
+++ b/kernel/bpf/trampoline.c
@@ -414,7 +414,7 @@ int bpf_trampoline_link_prog(struct bpf_prog *prog, struct bpf_trampoline *tr)
{
enum bpf_tramp_prog_type kind;
int err = 0;
- int cnt;
+ int cnt = 0, i;

kind = bpf_attach_type_to_tramp(prog);
mutex_lock(&tr->mutex);
@@ -425,7 +425,10 @@ int bpf_trampoline_link_prog(struct bpf_prog *prog, struct bpf_trampoline *tr)
err = -EBUSY;
goto out;
}
- cnt = tr->progs_cnt[BPF_TRAMP_FENTRY] + tr->progs_cnt[BPF_TRAMP_FEXIT];
+
+ for (i = 0; i < BPF_TRAMP_MAX; i++)
+ cnt += tr->progs_cnt[i];
+
if (kind == BPF_TRAMP_REPLACE) {
/* Cannot attach extension if fentry/fexit are in use. */
if (cnt) {
@@ -503,16 +506,19 @@ struct bpf_trampoline *bpf_trampoline_get(u64 key,

void bpf_trampoline_put(struct bpf_trampoline *tr)
{
+ int i;
+
if (!tr)
return;
mutex_lock(&trampoline_mutex);
if (!refcount_dec_and_test(&tr->refcnt))
goto out;
WARN_ON_ONCE(mutex_is_locked(&tr->mutex));
- if (WARN_ON_ONCE(!hlist_empty(&tr->progs_hlist[BPF_TRAMP_FENTRY])))
- goto out;
- if (WARN_ON_ONCE(!hlist_empty(&tr->progs_hlist[BPF_TRAMP_FEXIT])))
- goto out;
+
+ for (i = 0; i < BPF_TRAMP_MAX; i++)
+ if (WARN_ON_ONCE(!hlist_empty(&tr->progs_hlist[i])))
+ goto out;
+
/* This code will be executed even when the last bpf_tramp_image
* is alive. All progs are detached from the trampoline and the
* trampoline image is patched with jmp into epilogue to skip
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index d2b119b4fbe7..25ee8d9572c6 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -4587,6 +4587,11 @@ static int check_helper_mem_access(struct bpf_verifier_env *env, int regno,
return check_packet_access(env, regno, reg->off, access_size,
zero_size_allowed);
case PTR_TO_MAP_KEY:
+ if (meta && meta->raw_mode) {
+ verbose(env, "R%d cannot write into %s\n", regno,
+ reg_type_str(env, reg->type));
+ return -EACCES;
+ }
return check_mem_region_access(env, regno, reg->off, access_size,
reg->map_ptr->key_size, false);
case PTR_TO_MAP_VALUE:
@@ -4597,13 +4602,23 @@ static int check_helper_mem_access(struct bpf_verifier_env *env, int regno,
return check_map_access(env, regno, reg->off, access_size,
zero_size_allowed);
case PTR_TO_MEM:
+ if (type_is_rdonly_mem(reg->type)) {
+ if (meta && meta->raw_mode) {
+ verbose(env, "R%d cannot write into %s\n", regno,
+ reg_type_str(env, reg->type));
+ return -EACCES;
+ }
+ }
return check_mem_region_access(env, regno, reg->off,
access_size, reg->mem_size,
zero_size_allowed);
case PTR_TO_BUF:
if (type_is_rdonly_mem(reg->type)) {
- if (meta && meta->raw_mode)
+ if (meta && meta->raw_mode) {
+ verbose(env, "R%d cannot write into %s\n", regno,
+ reg_type_str(env, reg->type));
return -EACCES;
+ }

buf_info = "rdonly";
max_access = &env->prog->aux->max_rdonly_access;
diff --git a/lib/Kconfig b/lib/Kconfig
index fa4b10322efc..e052f843afed 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -121,6 +121,8 @@ config INDIRECT_IOMEM_FALLBACK
mmio accesses when the IO memory address is not a registered
emulated region.

+source "lib/crypto/Kconfig"
+
config CRC_CCITT
tristate "CRC-CCITT functions"
help
diff --git a/lib/assoc_array.c b/lib/assoc_array.c
index 04c98799c3ba..70304b8f15ac 100644
--- a/lib/assoc_array.c
+++ b/lib/assoc_array.c
@@ -1462,6 +1462,7 @@ int assoc_array_gc(struct assoc_array *array,
struct assoc_array_ptr *cursor, *ptr;
struct assoc_array_ptr *new_root, *new_parent, **new_ptr_pp;
unsigned long nr_leaves_on_tree;
+ bool retained;
int keylen, slot, nr_free, next_slot, i;

pr_devel("-->%s()\n", __func__);
@@ -1538,6 +1539,7 @@ int assoc_array_gc(struct assoc_array *array,
goto descend;
}

+retry_compress:
pr_devel("-- compress node %p --\n", new_n);

/* Count up the number of empty slots in this node and work out the
@@ -1555,6 +1557,7 @@ int assoc_array_gc(struct assoc_array *array,
pr_devel("free=%d, leaves=%lu\n", nr_free, new_n->nr_leaves_on_branch);

/* See what we can fold in */
+ retained = false;
next_slot = 0;
for (slot = 0; slot < ASSOC_ARRAY_FAN_OUT; slot++) {
struct assoc_array_shortcut *s;
@@ -1604,9 +1607,14 @@ int assoc_array_gc(struct assoc_array *array,
pr_devel("[%d] retain node %lu/%d [nx %d]\n",
slot, child->nr_leaves_on_branch, nr_free + 1,
next_slot);
+ retained = true;
}
}

+ if (retained && new_n->nr_leaves_on_branch <= ASSOC_ARRAY_FAN_OUT) {
+ pr_devel("internal nodes remain despite enough space, retrying\n");
+ goto retry_compress;
+ }
pr_devel("after: %lu\n", new_n->nr_leaves_on_branch);

nr_leaves_on_tree = new_n->nr_leaves_on_branch;
diff --git a/lib/crypto/Kconfig b/lib/crypto/Kconfig
index 8620f38e117c..e8e525650cf2 100644
--- a/lib/crypto/Kconfig
+++ b/lib/crypto/Kconfig
@@ -1,5 +1,7 @@
# SPDX-License-Identifier: GPL-2.0

+menu "Crypto library routines"
+
config CRYPTO_LIB_AES
tristate

@@ -31,7 +33,7 @@ config CRYPTO_ARCH_HAVE_LIB_CHACHA

config CRYPTO_LIB_CHACHA_GENERIC
tristate
- select CRYPTO_ALGAPI
+ select XOR_BLOCKS
help
This symbol can be depended upon by arch implementations of the
ChaCha library interface that require the generic code as a
@@ -40,7 +42,8 @@ config CRYPTO_LIB_CHACHA_GENERIC
of CRYPTO_LIB_CHACHA.

config CRYPTO_LIB_CHACHA
- tristate
+ tristate "ChaCha library interface"
+ depends on CRYPTO
depends on CRYPTO_ARCH_HAVE_LIB_CHACHA || !CRYPTO_ARCH_HAVE_LIB_CHACHA
select CRYPTO_LIB_CHACHA_GENERIC if CRYPTO_ARCH_HAVE_LIB_CHACHA=n
help
@@ -65,7 +68,7 @@ config CRYPTO_LIB_CURVE25519_GENERIC
of CRYPTO_LIB_CURVE25519.

config CRYPTO_LIB_CURVE25519
- tristate
+ tristate "Curve25519 scalar multiplication library"
depends on CRYPTO_ARCH_HAVE_LIB_CURVE25519 || !CRYPTO_ARCH_HAVE_LIB_CURVE25519
select CRYPTO_LIB_CURVE25519_GENERIC if CRYPTO_ARCH_HAVE_LIB_CURVE25519=n
help
@@ -100,7 +103,7 @@ config CRYPTO_LIB_POLY1305_GENERIC
of CRYPTO_LIB_POLY1305.

config CRYPTO_LIB_POLY1305
- tristate
+ tristate "Poly1305 library interface"
depends on CRYPTO_ARCH_HAVE_LIB_POLY1305 || !CRYPTO_ARCH_HAVE_LIB_POLY1305
select CRYPTO_LIB_POLY1305_GENERIC if CRYPTO_ARCH_HAVE_LIB_POLY1305=n
help
@@ -109,14 +112,18 @@ config CRYPTO_LIB_POLY1305
is available and enabled.

config CRYPTO_LIB_CHACHA20POLY1305
- tristate
+ tristate "ChaCha20-Poly1305 AEAD support (8-byte nonce library version)"
depends on CRYPTO_ARCH_HAVE_LIB_CHACHA || !CRYPTO_ARCH_HAVE_LIB_CHACHA
depends on CRYPTO_ARCH_HAVE_LIB_POLY1305 || !CRYPTO_ARCH_HAVE_LIB_POLY1305
+ depends on CRYPTO
select CRYPTO_LIB_CHACHA
select CRYPTO_LIB_POLY1305
+ select CRYPTO_ALGAPI

config CRYPTO_LIB_SHA256
tristate

config CRYPTO_LIB_SM4
tristate
+
+endmenu
diff --git a/lib/percpu-refcount.c b/lib/percpu-refcount.c
index af9302141bcf..e5c5315da274 100644
--- a/lib/percpu-refcount.c
+++ b/lib/percpu-refcount.c
@@ -76,6 +76,7 @@ int percpu_ref_init(struct percpu_ref *ref, percpu_ref_func_t *release,
data = kzalloc(sizeof(*ref->data), gfp);
if (!data) {
free_percpu((void __percpu *)ref->percpu_count_ptr);
+ ref->percpu_count_ptr = 0;
return -ENOMEM;
}

diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index b897ce3b399a..439deb8decbc 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1743,11 +1743,40 @@ static enum fullness_group putback_zspage(struct size_class *class,
*/
static void lock_zspage(struct zspage *zspage)
{
- struct page *page = get_first_page(zspage);
+ struct page *curr_page, *page;

- do {
- lock_page(page);
- } while ((page = get_next_page(page)) != NULL);
+ /*
+ * Pages we haven't locked yet can be migrated off the list while we're
+ * trying to lock them, so we need to be careful and only attempt to
+ * lock each page under migrate_read_lock(). Otherwise, the page we lock
+ * may no longer belong to the zspage. This means that we may wait for
+ * the wrong page to unlock, so we must take a reference to the page
+ * prior to waiting for it to unlock outside migrate_read_lock().
+ */
+ while (1) {
+ migrate_read_lock(zspage);
+ page = get_first_page(zspage);
+ if (trylock_page(page))
+ break;
+ get_page(page);
+ migrate_read_unlock(zspage);
+ wait_on_page_locked(page);
+ put_page(page);
+ }
+
+ curr_page = page;
+ while ((page = get_next_page(curr_page))) {
+ if (trylock_page(page)) {
+ curr_page = page;
+ } else {
+ get_page(page);
+ migrate_read_unlock(zspage);
+ wait_on_page_locked(page);
+ put_page(page);
+ migrate_read_lock(zspage);
+ }
+ }
+ migrate_read_unlock(zspage);
}

static int zs_init_fs_context(struct fs_context *fc)
diff --git a/net/core/filter.c b/net/core/filter.c
index 821278b906b7..707e2e48d769 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -1688,7 +1688,7 @@ BPF_CALL_5(bpf_skb_store_bytes, struct sk_buff *, skb, u32, offset,

if (unlikely(flags & ~(BPF_F_RECOMPUTE_CSUM | BPF_F_INVALIDATE_HASH)))
return -EINVAL;
- if (unlikely(offset > 0xffff))
+ if (unlikely(offset > INT_MAX))
return -EFAULT;
if (unlikely(bpf_try_make_writable(skb, offset + len)))
return -EFAULT;
@@ -1723,7 +1723,7 @@ BPF_CALL_4(bpf_skb_load_bytes, const struct sk_buff *, skb, u32, offset,
{
void *ptr;

- if (unlikely(offset > 0xffff))
+ if (unlikely(offset > INT_MAX))
goto err_clear;

ptr = skb_header_pointer(skb, offset, len, to);
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 92e9d75dba2f..339d95df19d3 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -2900,7 +2900,7 @@ static int count_ah_combs(const struct xfrm_tmpl *t)
break;
if (!aalg->pfkey_supported)
continue;
- if (aalg_tmpl_set(t, aalg))
+ if (aalg_tmpl_set(t, aalg) && aalg->available)
sz += sizeof(struct sadb_comb);
}
return sz + sizeof(struct sadb_prop);
@@ -2918,7 +2918,7 @@ static int count_esp_combs(const struct xfrm_tmpl *t)
if (!ealg->pfkey_supported)
continue;

- if (!(ealg_tmpl_set(t, ealg)))
+ if (!(ealg_tmpl_set(t, ealg) && ealg->available))
continue;

for (k = 1; ; k++) {
@@ -2929,7 +2929,7 @@ static int count_esp_combs(const struct xfrm_tmpl *t)
if (!aalg->pfkey_supported)
continue;

- if (aalg_tmpl_set(t, aalg))
+ if (aalg_tmpl_set(t, aalg) && aalg->available)
sz += sizeof(struct sadb_comb);
}
}
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 2feb88ffcd81..79e8fc687fdd 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -222,12 +222,18 @@ static int nft_netdev_register_hooks(struct net *net,
}

static void nft_netdev_unregister_hooks(struct net *net,
- struct list_head *hook_list)
+ struct list_head *hook_list,
+ bool release_netdev)
{
- struct nft_hook *hook;
+ struct nft_hook *hook, *next;

- list_for_each_entry(hook, hook_list, list)
+ list_for_each_entry_safe(hook, next, hook_list, list) {
nf_unregister_net_hook(net, &hook->ops);
+ if (release_netdev) {
+ list_del(&hook->list);
+ kfree_rcu(hook, rcu);
+ }
+ }
}

static int nf_tables_register_hook(struct net *net,
@@ -253,9 +259,10 @@ static int nf_tables_register_hook(struct net *net,
return nf_register_net_hook(net, &basechain->ops);
}

-static void nf_tables_unregister_hook(struct net *net,
- const struct nft_table *table,
- struct nft_chain *chain)
+static void __nf_tables_unregister_hook(struct net *net,
+ const struct nft_table *table,
+ struct nft_chain *chain,
+ bool release_netdev)
{
struct nft_base_chain *basechain;
const struct nf_hook_ops *ops;
@@ -270,11 +277,19 @@ static void nf_tables_unregister_hook(struct net *net,
return basechain->type->ops_unregister(net, ops);

if (nft_base_chain_netdev(table->family, basechain->ops.hooknum))
- nft_netdev_unregister_hooks(net, &basechain->hook_list);
+ nft_netdev_unregister_hooks(net, &basechain->hook_list,
+ release_netdev);
else
nf_unregister_net_hook(net, &basechain->ops);
}

+static void nf_tables_unregister_hook(struct net *net,
+ const struct nft_table *table,
+ struct nft_chain *chain)
+{
+ return __nf_tables_unregister_hook(net, table, chain, false);
+}
+
static void nft_trans_commit_list_add_tail(struct net *net, struct nft_trans *trans)
{
struct nftables_pernet *nft_net = nft_pernet(net);
@@ -2778,27 +2793,31 @@ static struct nft_expr *nft_expr_init(const struct nft_ctx *ctx,

err = nf_tables_expr_parse(ctx, nla, &expr_info);
if (err < 0)
- goto err1;
+ goto err_expr_parse;
+
+ err = -EOPNOTSUPP;
+ if (!(expr_info.ops->type->flags & NFT_EXPR_STATEFUL))
+ goto err_expr_stateful;

err = -ENOMEM;
expr = kzalloc(expr_info.ops->size, GFP_KERNEL);
if (expr == NULL)
- goto err2;
+ goto err_expr_stateful;

err = nf_tables_newexpr(ctx, &expr_info, expr);
if (err < 0)
- goto err3;
+ goto err_expr_new;

return expr;
-err3:
+err_expr_new:
kfree(expr);
-err2:
+err_expr_stateful:
owner = expr_info.ops->type->owner;
if (expr_info.ops->type->release_ops)
expr_info.ops->type->release_ops(expr_info.ops);

module_put(owner);
-err1:
+err_expr_parse:
return ERR_PTR(err);
}

@@ -4147,6 +4166,9 @@ static int nft_set_desc_concat_parse(const struct nlattr *attr,
u32 len;
int err;

+ if (desc->field_count >= ARRAY_SIZE(desc->field_len))
+ return -E2BIG;
+
err = nla_parse_nested_deprecated(tb, NFTA_SET_FIELD_MAX, attr,
nft_concat_policy, NULL);
if (err < 0)
@@ -4156,9 +4178,8 @@ static int nft_set_desc_concat_parse(const struct nlattr *attr,
return -EINVAL;

len = ntohl(nla_get_be32(tb[NFTA_SET_FIELD_LEN]));
-
- if (len * BITS_PER_BYTE / 32 > NFT_REG32_COUNT)
- return -E2BIG;
+ if (!len || len > U8_MAX)
+ return -EINVAL;

desc->field_len[desc->field_count++] = len;

@@ -4169,7 +4190,8 @@ static int nft_set_desc_concat(struct nft_set_desc *desc,
const struct nlattr *nla)
{
struct nlattr *attr;
- int rem, err;
+ u32 num_regs = 0;
+ int rem, err, i;

nla_for_each_nested(attr, nla, rem) {
if (nla_type(attr) != NFTA_LIST_ELEM)
@@ -4180,6 +4202,12 @@ static int nft_set_desc_concat(struct nft_set_desc *desc,
return err;
}

+ for (i = 0; i < desc->field_count; i++)
+ num_regs += DIV_ROUND_UP(desc->field_len[i], sizeof(u32));
+
+ if (num_regs > NFT_REG32_COUNT)
+ return -E2BIG;
+
return 0;
}

@@ -5318,9 +5346,6 @@ struct nft_expr *nft_set_elem_expr_alloc(const struct nft_ctx *ctx,
return expr;

err = -EOPNOTSUPP;
- if (!(expr->ops->type->flags & NFT_EXPR_STATEFUL))
- goto err_set_elem_expr;
-
if (expr->ops->type->flags & NFT_EXPR_GC) {
if (set->flags & NFT_SET_TIMEOUT)
goto err_set_elem_expr;
@@ -7196,13 +7221,25 @@ static void nft_unregister_flowtable_hook(struct net *net,
FLOW_BLOCK_UNBIND);
}

-static void nft_unregister_flowtable_net_hooks(struct net *net,
- struct list_head *hook_list)
+static void __nft_unregister_flowtable_net_hooks(struct net *net,
+ struct list_head *hook_list,
+ bool release_netdev)
{
- struct nft_hook *hook;
+ struct nft_hook *hook, *next;

- list_for_each_entry(hook, hook_list, list)
+ list_for_each_entry_safe(hook, next, hook_list, list) {
nf_unregister_net_hook(net, &hook->ops);
+ if (release_netdev) {
+ list_del(&hook->list);
+ kfree_rcu(hook);
+ }
+ }
+}
+
+static void nft_unregister_flowtable_net_hooks(struct net *net,
+ struct list_head *hook_list)
+{
+ __nft_unregister_flowtable_net_hooks(net, hook_list, false);
}

static int nft_register_flowtable_net_hooks(struct net *net,
@@ -9595,9 +9632,10 @@ static void __nft_release_hook(struct net *net, struct nft_table *table)
struct nft_chain *chain;

list_for_each_entry(chain, &table->chains, list)
- nf_tables_unregister_hook(net, table, chain);
+ __nf_tables_unregister_hook(net, table, chain, true);
list_for_each_entry(flowtable, &table->flowtables, list)
- nft_unregister_flowtable_net_hooks(net, &flowtable->hook_list);
+ __nft_unregister_flowtable_net_hooks(net, &flowtable->hook_list,
+ true);
}

static void __nft_release_hooks(struct net *net)
@@ -9736,7 +9774,11 @@ static int __net_init nf_tables_init_net(struct net *net)

static void __net_exit nf_tables_pre_exit_net(struct net *net)
{
+ struct nftables_pernet *nft_net = nft_pernet(net);
+
+ mutex_lock(&nft_net->commit_mutex);
__nft_release_hooks(net);
+ mutex_unlock(&nft_net->commit_mutex);
}

static void __net_exit nf_tables_exit_net(struct net *net)
diff --git a/sound/usb/clock.c b/sound/usb/clock.c
index 98345a695dcc..ccca9efa7d33 100644
--- a/sound/usb/clock.c
+++ b/sound/usb/clock.c
@@ -572,6 +572,17 @@ static int set_sample_rate_v2v3(struct snd_usb_audio *chip,
/* continue processing */
}

+ /* FIXME - TEAC devices require the immediate interface setup */
+ if (USB_ID_VENDOR(chip->usb_id) == 0x0644) {
+ bool cur_base_48k = (rate % 48000 == 0);
+ bool prev_base_48k = (prev_rate % 48000 == 0);
+ if (cur_base_48k != prev_base_48k) {
+ usb_set_interface(chip->dev, fmt->iface, fmt->altsetting);
+ if (chip->quirk_flags & QUIRK_FLAG_IFACE_DELAY)
+ msleep(50);
+ }
+ }
+
validation:
/* validate clock after rate change */
if (!uac_clock_source_is_valid(chip, fmt, clock))
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 729e26f5ac4c..9e65a42cc9b7 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -439,16 +439,21 @@ static int configure_endpoints(struct snd_usb_audio *chip,
/* stop any running stream beforehand */
if (stop_endpoints(subs, false))
sync_pending_stops(subs);
+ if (subs->sync_endpoint) {
+ err = snd_usb_endpoint_configure(chip, subs->sync_endpoint);
+ if (err < 0)
+ return err;
+ }
err = snd_usb_endpoint_configure(chip, subs->data_endpoint);
if (err < 0)
return err;
snd_usb_set_format_quirk(subs, subs->cur_audiofmt);
- }
-
- if (subs->sync_endpoint) {
- err = snd_usb_endpoint_configure(chip, subs->sync_endpoint);
- if (err < 0)
- return err;
+ } else {
+ if (subs->sync_endpoint) {
+ err = snd_usb_endpoint_configure(chip, subs->sync_endpoint);
+ if (err < 0)
+ return err;
+ }
}

return 0;
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index 40a5e3eb4ef2..78eb41b621d6 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -2672,6 +2672,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
.altset_idx = 1,
.attributes = 0,
.endpoint = 0x82,
+ .ep_idx = 1,
.ep_attr = USB_ENDPOINT_XFER_ISOC,
.datainterval = 1,
.maxpacksize = 0x0126,
@@ -2875,6 +2876,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
.altset_idx = 1,
.attributes = 0x4,
.endpoint = 0x81,
+ .ep_idx = 1,
.ep_attr = USB_ENDPOINT_XFER_ISOC |
USB_ENDPOINT_SYNC_ASYNC,
.maxpacksize = 0x130,
@@ -3391,6 +3393,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
.altset_idx = 1,
.attributes = 0,
.endpoint = 0x03,
+ .ep_idx = 1,
.rates = SNDRV_PCM_RATE_96000,
.ep_attr = USB_ENDPOINT_XFER_ISOC |
USB_ENDPOINT_SYNC_ASYNC,
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index ab9f3da49941..fbbe59054c3f 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1822,6 +1822,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
QUIRK_FLAG_IGNORE_CTL_ERROR),
DEVICE_FLG(0x06f8, 0xd002, /* Hercules DJ Console (Macintosh Edition) */
QUIRK_FLAG_IGNORE_CTL_ERROR),
+ DEVICE_FLG(0x0711, 0x5800, /* MCT Trigger 5 USB-to-HDMI */
+ QUIRK_FLAG_GET_SAMPLE_RATE),
DEVICE_FLG(0x074d, 0x3553, /* Outlaw RR2150 (Micronas UAC3553B) */
QUIRK_FLAG_GET_SAMPLE_RATE),
DEVICE_FLG(0x08bb, 0x2702, /* LineX FM Transmitter */