20 hotfixes. 15 are cc:stable and the remainder address post-6.16 issues

or aren't considered necessary for -stable kernels.  14 of these fixes are
 for MM.
 
 This includes
 
 - a 3-patch kexec series from Breno that fixes a recently introduced
   use-uninitialized bug,
 
 - e 2-patch DAMON series from Quanmin Yan that avoids div-by-zero
   crashes which can occur if the operator uses poorly-chosen insmod
   parameters.
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 jq3sAQDkflIN0qW3R7yqgUZfdO78T2LMmGlPW1L7F/ZXkxLk7gD/WgkWoec5cqi0
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Merge tag 'mm-hotfixes-stable-2025-09-10-20-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "20 hotfixes. 15 are cc:stable and the remainder address post-6.16
  issues or aren't considered necessary for -stable kernels. 14 of these
  fixes are for MM.

  This includes

   - kexec fixes from Breno for a recently introduced
     use-uninitialized bug

   - DAMON fixes from Quanmin Yan to avoid div-by-zero crashes
     which can occur if the operator uses poorly-chosen insmod
     parameters

   and misc singleton fixes"

* tag 'mm-hotfixes-stable-2025-09-10-20-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  MAINTAINERS: add tree entry to numa memblocks and emulation block
  mm/damon/sysfs: fix use-after-free in state_show()
  proc: fix type confusion in pde_set_flags()
  compiler-clang.h: define __SANITIZE_*__ macros only when undefined
  mm/vmalloc, mm/kasan: respect gfp mask in kasan_populate_vmalloc()
  ocfs2: fix recursive semaphore deadlock in fiemap call
  mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory
  mm/mremap: fix regression in vrm->new_addr check
  percpu: fix race on alloc failed warning limit
  mm/memory-failure: fix redundant updates for already poisoned pages
  s390: kexec: initialize kexec_buf struct
  riscv: kexec: initialize kexec_buf struct
  arm64: kexec: initialize kexec_buf struct in load_other_segments()
  mm/damon/reclaim: avoid divide-by-zero in damon_reclaim_apply_parameters()
  mm/damon/lru_sort: avoid divide-by-zero in damon_lru_sort_apply_parameters()
  mm/damon/core: set quota->charged_from to jiffies at first charge window
  mm/hugetlb: add missing hugetlb_lock in __unmap_hugepage_range()
  init/main.c: fix boot time tracing crash
  mm/memory_hotplug: fix hwpoisoned large folio handling in do_migrate_range()
  mm/khugepaged: fix the address passed to notifier on testing young
This commit is contained in:
Linus Torvalds 2025-09-10 21:19:34 -07:00
commit 4f553c1e2c
22 changed files with 141 additions and 63 deletions

View File

@ -16128,6 +16128,7 @@ M: Andrew Morton <akpm@linux-foundation.org>
M: Mike Rapoport <rppt@kernel.org>
L: linux-mm@kvack.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock.git
F: include/linux/numa_memblks.h
F: mm/numa.c
F: mm/numa_emulation.c

View File

@ -94,7 +94,7 @@ int load_other_segments(struct kimage *image,
char *initrd, unsigned long initrd_len,
char *cmdline)
{
struct kexec_buf kbuf;
struct kexec_buf kbuf = {};
void *dtb = NULL;
unsigned long initrd_load_addr = 0, dtb_len,
orig_segments = image->nr_segments;

View File

@ -16,7 +16,7 @@
static int kexec_file_add_kernel_elf(struct kimage *image,
struct s390_load_data *data)
{
struct kexec_buf buf;
struct kexec_buf buf = {};
const Elf_Ehdr *ehdr;
const Elf_Phdr *phdr;
Elf_Addr entry;

View File

@ -16,7 +16,7 @@
static int kexec_file_add_kernel_image(struct kimage *image,
struct s390_load_data *data)
{
struct kexec_buf buf;
struct kexec_buf buf = {};
buf.image = image;

View File

@ -129,7 +129,7 @@ static int kexec_file_update_purgatory(struct kimage *image,
static int kexec_file_add_purgatory(struct kimage *image,
struct s390_load_data *data)
{
struct kexec_buf buf;
struct kexec_buf buf = {};
int ret;
buf.image = image;
@ -152,7 +152,7 @@ static int kexec_file_add_purgatory(struct kimage *image,
static int kexec_file_add_initrd(struct kimage *image,
struct s390_load_data *data)
{
struct kexec_buf buf;
struct kexec_buf buf = {};
int ret;
buf.image = image;
@ -184,7 +184,7 @@ static int kexec_file_add_ipl_report(struct kimage *image,
{
__u32 *lc_ipl_parmblock_ptr;
unsigned int len, ncerts;
struct kexec_buf buf;
struct kexec_buf buf = {};
unsigned long addr;
void *ptr, *end;
int ret;

View File

@ -706,6 +706,8 @@ out:
* it not only handles the fiemap for inlined files, but also deals
* with the fast symlink, cause they have no difference for extent
* mapping per se.
*
* Must be called with ip_alloc_sem semaphore held.
*/
static int ocfs2_fiemap_inline(struct inode *inode, struct buffer_head *di_bh,
struct fiemap_extent_info *fieinfo,
@ -717,6 +719,7 @@ static int ocfs2_fiemap_inline(struct inode *inode, struct buffer_head *di_bh,
u64 phys;
u32 flags = FIEMAP_EXTENT_DATA_INLINE|FIEMAP_EXTENT_LAST;
struct ocfs2_inode_info *oi = OCFS2_I(inode);
lockdep_assert_held_read(&oi->ip_alloc_sem);
di = (struct ocfs2_dinode *)di_bh->b_data;
if (ocfs2_inode_is_fast_symlink(inode))
@ -732,8 +735,11 @@ static int ocfs2_fiemap_inline(struct inode *inode, struct buffer_head *di_bh,
phys += offsetof(struct ocfs2_dinode,
id2.i_data.id_data);
/* Release the ip_alloc_sem to prevent deadlock on page fault */
up_read(&OCFS2_I(inode)->ip_alloc_sem);
ret = fiemap_fill_next_extent(fieinfo, 0, phys, id_count,
flags);
down_read(&OCFS2_I(inode)->ip_alloc_sem);
if (ret < 0)
return ret;
}
@ -802,9 +808,11 @@ int ocfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
len_bytes = (u64)le16_to_cpu(rec.e_leaf_clusters) << osb->s_clustersize_bits;
phys_bytes = le64_to_cpu(rec.e_blkno) << osb->sb->s_blocksize_bits;
virt_bytes = (u64)le32_to_cpu(rec.e_cpos) << osb->s_clustersize_bits;
/* Release the ip_alloc_sem to prevent deadlock on page fault */
up_read(&OCFS2_I(inode)->ip_alloc_sem);
ret = fiemap_fill_next_extent(fieinfo, virt_bytes, phys_bytes,
len_bytes, fe_flags);
down_read(&OCFS2_I(inode)->ip_alloc_sem);
if (ret)
break;

View File

@ -393,7 +393,8 @@ struct proc_dir_entry *proc_register(struct proc_dir_entry *dir,
if (proc_alloc_inum(&dp->low_ino))
goto out_free_entry;
pde_set_flags(dp);
if (!S_ISDIR(dp->mode))
pde_set_flags(dp);
write_lock(&proc_subdir_lock);
dp->parent = dir;

View File

@ -18,23 +18,42 @@
#define KASAN_ABI_VERSION 5
/*
* Clang 22 added preprocessor macros to match GCC, in hopes of eventually
* dropping __has_feature support for sanitizers:
* https://github.com/llvm/llvm-project/commit/568c23bbd3303518c5056d7f03444dae4fdc8a9c
* Create these macros for older versions of clang so that it is easy to clean
* up once the minimum supported version of LLVM for building the kernel always
* creates these macros.
*
* Note: Checking __has_feature(*_sanitizer) is only true if the feature is
* enabled. Therefore it is not required to additionally check defined(CONFIG_*)
* to avoid adding redundant attributes in other configurations.
*/
#if __has_feature(address_sanitizer) || __has_feature(hwaddress_sanitizer)
/* Emulate GCC's __SANITIZE_ADDRESS__ flag */
#if __has_feature(address_sanitizer) && !defined(__SANITIZE_ADDRESS__)
#define __SANITIZE_ADDRESS__
#endif
#if __has_feature(hwaddress_sanitizer) && !defined(__SANITIZE_HWADDRESS__)
#define __SANITIZE_HWADDRESS__
#endif
#if __has_feature(thread_sanitizer) && !defined(__SANITIZE_THREAD__)
#define __SANITIZE_THREAD__
#endif
/*
* Treat __SANITIZE_HWADDRESS__ the same as __SANITIZE_ADDRESS__ in the kernel.
*/
#ifdef __SANITIZE_HWADDRESS__
#define __SANITIZE_ADDRESS__
#endif
#ifdef __SANITIZE_ADDRESS__
#define __no_sanitize_address \
__attribute__((no_sanitize("address", "hwaddress")))
#else
#define __no_sanitize_address
#endif
#if __has_feature(thread_sanitizer)
/* emulate gcc's __SANITIZE_THREAD__ flag */
#define __SANITIZE_THREAD__
#ifdef __SANITIZE_THREAD__
#define __no_sanitize_thread \
__attribute__((no_sanitize("thread")))
#else

View File

@ -562,7 +562,7 @@ static inline void kasan_init_hw_tags(void) { }
#if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
void kasan_populate_early_vm_area_shadow(void *start, unsigned long size);
int kasan_populate_vmalloc(unsigned long addr, unsigned long size);
int kasan_populate_vmalloc(unsigned long addr, unsigned long size, gfp_t gfp_mask);
void kasan_release_vmalloc(unsigned long start, unsigned long end,
unsigned long free_region_start,
unsigned long free_region_end,
@ -574,7 +574,7 @@ static inline void kasan_populate_early_vm_area_shadow(void *start,
unsigned long size)
{ }
static inline int kasan_populate_vmalloc(unsigned long start,
unsigned long size)
unsigned long size, gfp_t gfp_mask)
{
return 0;
}
@ -610,7 +610,7 @@ static __always_inline void kasan_poison_vmalloc(const void *start,
static inline void kasan_populate_early_vm_area_shadow(void *start,
unsigned long size) { }
static inline int kasan_populate_vmalloc(unsigned long start,
unsigned long size)
unsigned long size, gfp_t gfp_mask)
{
return 0;
}

View File

@ -956,6 +956,7 @@ void start_kernel(void)
sort_main_extable();
trap_init();
mm_core_init();
maple_tree_init();
poking_init();
ftrace_init();
@ -973,7 +974,6 @@ void start_kernel(void)
"Interrupts were enabled *very* early, fixing it\n"))
local_irq_disable();
radix_tree_init();
maple_tree_init();
/*
* Set up housekeeping before setting up workqueues to allow the unbound

View File

@ -2111,6 +2111,10 @@ static void damos_adjust_quota(struct damon_ctx *c, struct damos *s)
if (!quota->ms && !quota->sz && list_empty(&quota->goals))
return;
/* First charge window */
if (!quota->total_charged_sz && !quota->charged_from)
quota->charged_from = jiffies;
/* New charge window starts */
if (time_after_eq(jiffies, quota->charged_from +
msecs_to_jiffies(quota->reset_interval))) {

View File

@ -198,6 +198,11 @@ static int damon_lru_sort_apply_parameters(void)
if (err)
return err;
if (!damon_lru_sort_mon_attrs.sample_interval) {
err = -EINVAL;
goto out;
}
err = damon_set_attrs(ctx, &damon_lru_sort_mon_attrs);
if (err)
goto out;

View File

@ -194,6 +194,11 @@ static int damon_reclaim_apply_parameters(void)
if (err)
return err;
if (!damon_reclaim_mon_attrs.aggr_interval) {
err = -EINVAL;
goto out;
}
err = damon_set_attrs(param_ctx, &damon_reclaim_mon_attrs);
if (err)
goto out;

View File

@ -1260,14 +1260,18 @@ static ssize_t state_show(struct kobject *kobj, struct kobj_attribute *attr,
{
struct damon_sysfs_kdamond *kdamond = container_of(kobj,
struct damon_sysfs_kdamond, kobj);
struct damon_ctx *ctx = kdamond->damon_ctx;
bool running;
struct damon_ctx *ctx;
bool running = false;
if (!ctx)
running = false;
else
if (!mutex_trylock(&damon_sysfs_lock))
return -EBUSY;
ctx = kdamond->damon_ctx;
if (ctx)
running = damon_is_running(ctx);
mutex_unlock(&damon_sysfs_lock);
return sysfs_emit(buf, "%s\n", running ?
damon_sysfs_cmd_strs[DAMON_SYSFS_CMD_ON] :
damon_sysfs_cmd_strs[DAMON_SYSFS_CMD_OFF]);

View File

@ -5851,7 +5851,7 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
spinlock_t *ptl;
struct hstate *h = hstate_vma(vma);
unsigned long sz = huge_page_size(h);
bool adjust_reservation = false;
bool adjust_reservation;
unsigned long last_addr_mask;
bool force_flush = false;
@ -5944,6 +5944,7 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
sz);
hugetlb_count_sub(pages_per_huge_page(h), mm);
hugetlb_remove_rmap(folio);
spin_unlock(ptl);
/*
* Restore the reservation for anonymous page, otherwise the
@ -5951,14 +5952,16 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
* If there we are freeing a surplus, do not set the restore
* reservation bit.
*/
adjust_reservation = false;
spin_lock_irq(&hugetlb_lock);
if (!h->surplus_huge_pages && __vma_private_lock(vma) &&
folio_test_anon(folio)) {
folio_set_hugetlb_restore_reserve(folio);
/* Reservation to be adjusted after the spin lock */
adjust_reservation = true;
}
spin_unlock(ptl);
spin_unlock_irq(&hugetlb_lock);
/*
* Adjust the reservation for the region that will have the

View File

@ -336,13 +336,13 @@ static void ___free_pages_bulk(struct page **pages, int nr_pages)
}
}
static int ___alloc_pages_bulk(struct page **pages, int nr_pages)
static int ___alloc_pages_bulk(struct page **pages, int nr_pages, gfp_t gfp_mask)
{
unsigned long nr_populated, nr_total = nr_pages;
struct page **page_array = pages;
while (nr_pages) {
nr_populated = alloc_pages_bulk(GFP_KERNEL, nr_pages, pages);
nr_populated = alloc_pages_bulk(gfp_mask, nr_pages, pages);
if (!nr_populated) {
___free_pages_bulk(page_array, nr_total - nr_pages);
return -ENOMEM;
@ -354,25 +354,42 @@ static int ___alloc_pages_bulk(struct page **pages, int nr_pages)
return 0;
}
static int __kasan_populate_vmalloc(unsigned long start, unsigned long end)
static int __kasan_populate_vmalloc(unsigned long start, unsigned long end, gfp_t gfp_mask)
{
unsigned long nr_pages, nr_total = PFN_UP(end - start);
struct vmalloc_populate_data data;
unsigned int flags;
int ret = 0;
data.pages = (struct page **)__get_free_page(GFP_KERNEL | __GFP_ZERO);
data.pages = (struct page **)__get_free_page(gfp_mask | __GFP_ZERO);
if (!data.pages)
return -ENOMEM;
while (nr_total) {
nr_pages = min(nr_total, PAGE_SIZE / sizeof(data.pages[0]));
ret = ___alloc_pages_bulk(data.pages, nr_pages);
ret = ___alloc_pages_bulk(data.pages, nr_pages, gfp_mask);
if (ret)
break;
data.start = start;
/*
* page tables allocations ignore external gfp mask, enforce it
* by the scope API
*/
if ((gfp_mask & (__GFP_FS | __GFP_IO)) == __GFP_IO)
flags = memalloc_nofs_save();
else if ((gfp_mask & (__GFP_FS | __GFP_IO)) == 0)
flags = memalloc_noio_save();
ret = apply_to_page_range(&init_mm, start, nr_pages * PAGE_SIZE,
kasan_populate_vmalloc_pte, &data);
if ((gfp_mask & (__GFP_FS | __GFP_IO)) == __GFP_IO)
memalloc_nofs_restore(flags);
else if ((gfp_mask & (__GFP_FS | __GFP_IO)) == 0)
memalloc_noio_restore(flags);
___free_pages_bulk(data.pages, nr_pages);
if (ret)
break;
@ -386,7 +403,7 @@ static int __kasan_populate_vmalloc(unsigned long start, unsigned long end)
return ret;
}
int kasan_populate_vmalloc(unsigned long addr, unsigned long size)
int kasan_populate_vmalloc(unsigned long addr, unsigned long size, gfp_t gfp_mask)
{
unsigned long shadow_start, shadow_end;
int ret;
@ -415,7 +432,7 @@ int kasan_populate_vmalloc(unsigned long addr, unsigned long size)
shadow_start = PAGE_ALIGN_DOWN(shadow_start);
shadow_end = PAGE_ALIGN(shadow_end);
ret = __kasan_populate_vmalloc(shadow_start, shadow_end);
ret = __kasan_populate_vmalloc(shadow_start, shadow_end, gfp_mask);
if (ret)
return ret;

View File

@ -1417,8 +1417,8 @@ static int hpage_collapse_scan_pmd(struct mm_struct *mm,
*/
if (cc->is_khugepaged &&
(pte_young(pteval) || folio_test_young(folio) ||
folio_test_referenced(folio) || mmu_notifier_test_young(vma->vm_mm,
address)))
folio_test_referenced(folio) ||
mmu_notifier_test_young(vma->vm_mm, _address)))
referenced++;
}
if (!writable) {

View File

@ -956,7 +956,7 @@ static const char * const action_page_types[] = {
[MF_MSG_BUDDY] = "free buddy page",
[MF_MSG_DAX] = "dax page",
[MF_MSG_UNSPLIT_THP] = "unsplit thp",
[MF_MSG_ALREADY_POISONED] = "already poisoned",
[MF_MSG_ALREADY_POISONED] = "already poisoned page",
[MF_MSG_UNKNOWN] = "unknown page",
};
@ -1349,9 +1349,10 @@ static int action_result(unsigned long pfn, enum mf_action_page_type type,
{
trace_memory_failure_event(pfn, type, result);
num_poisoned_pages_inc(pfn);
update_per_node_mf_stats(pfn, result);
if (type != MF_MSG_ALREADY_POISONED) {
num_poisoned_pages_inc(pfn);
update_per_node_mf_stats(pfn, result);
}
pr_err("%#lx: recovery action for %s: %s\n",
pfn, action_page_types[type], action_name[result]);
@ -2094,12 +2095,11 @@ retry:
*hugetlb = 0;
return 0;
} else if (res == -EHWPOISON) {
pr_err("%#lx: already hardware poisoned\n", pfn);
if (flags & MF_ACTION_REQUIRED) {
folio = page_folio(p);
res = kill_accessing_process(current, folio_pfn(folio), flags);
action_result(pfn, MF_MSG_ALREADY_POISONED, MF_FAILED);
}
action_result(pfn, MF_MSG_ALREADY_POISONED, MF_FAILED);
return res;
} else if (res == -EBUSY) {
if (!(flags & MF_NO_RETRY)) {
@ -2285,7 +2285,6 @@ try_again:
goto unlock_mutex;
if (TestSetPageHWPoison(p)) {
pr_err("%#lx: already hardware poisoned\n", pfn);
res = -EHWPOISON;
if (flags & MF_ACTION_REQUIRED)
res = kill_accessing_process(current, pfn, flags);
@ -2569,10 +2568,9 @@ int unpoison_memory(unsigned long pfn)
static DEFINE_RATELIMIT_STATE(unpoison_rs, DEFAULT_RATELIMIT_INTERVAL,
DEFAULT_RATELIMIT_BURST);
if (!pfn_valid(pfn))
return -ENXIO;
p = pfn_to_page(pfn);
p = pfn_to_online_page(pfn);
if (!p)
return -EIO;
folio = page_folio(p);
mutex_lock(&mf_mutex);

View File

@ -1815,8 +1815,14 @@ static void do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)
pfn = folio_pfn(folio) + folio_nr_pages(folio) - 1;
if (folio_contain_hwpoisoned_page(folio)) {
if (WARN_ON(folio_test_lru(folio)))
folio_isolate_lru(folio);
/*
* unmap_poisoned_folio() cannot handle large folios
* in all cases yet.
*/
if (folio_test_large(folio) && !folio_test_hugetlb(folio))
goto put_folio;
if (folio_test_lru(folio) && !folio_isolate_lru(folio))
goto put_folio;
if (folio_mapped(folio)) {
folio_lock(folio);
unmap_poisoned_folio(folio, pfn, false);

View File

@ -1774,15 +1774,18 @@ static unsigned long check_mremap_params(struct vma_remap_struct *vrm)
if (!vrm->new_len)
return -EINVAL;
/* Is the new length or address silly? */
if (vrm->new_len > TASK_SIZE ||
vrm->new_addr > TASK_SIZE - vrm->new_len)
/* Is the new length silly? */
if (vrm->new_len > TASK_SIZE)
return -EINVAL;
/* Remainder of checks are for cases with specific new_addr. */
if (!vrm_implies_new_addr(vrm))
return 0;
/* Is the new address silly? */
if (vrm->new_addr > TASK_SIZE - vrm->new_len)
return -EINVAL;
/* The new address must be page-aligned. */
if (offset_in_page(vrm->new_addr))
return -EINVAL;

View File

@ -1734,7 +1734,7 @@ void __percpu *pcpu_alloc_noprof(size_t size, size_t align, bool reserved,
bool is_atomic;
bool do_warn;
struct obj_cgroup *objcg = NULL;
static int warn_limit = 10;
static atomic_t warn_limit = ATOMIC_INIT(10);
struct pcpu_chunk *chunk, *next;
const char *err;
int slot, off, cpu, ret;
@ -1904,13 +1904,17 @@ fail_unlock:
fail:
trace_percpu_alloc_percpu_fail(reserved, is_atomic, size, align);
if (do_warn && warn_limit) {
pr_warn("allocation failed, size=%zu align=%zu atomic=%d, %s\n",
size, align, is_atomic, err);
if (!is_atomic)
dump_stack();
if (!--warn_limit)
pr_info("limit reached, disable warning\n");
if (do_warn) {
int remaining = atomic_dec_if_positive(&warn_limit);
if (remaining >= 0) {
pr_warn("allocation failed, size=%zu align=%zu atomic=%d, %s\n",
size, align, is_atomic, err);
if (!is_atomic)
dump_stack();
if (remaining == 0)
pr_info("limit reached, disable warning\n");
}
}
if (is_atomic) {

View File

@ -2026,6 +2026,8 @@ static struct vmap_area *alloc_vmap_area(unsigned long size,
if (unlikely(!vmap_initialized))
return ERR_PTR(-EBUSY);
/* Only reclaim behaviour flags are relevant. */
gfp_mask = gfp_mask & GFP_RECLAIM_MASK;
might_sleep();
/*
@ -2038,8 +2040,6 @@ static struct vmap_area *alloc_vmap_area(unsigned long size,
*/
va = node_alloc(size, align, vstart, vend, &addr, &vn_id);
if (!va) {
gfp_mask = gfp_mask & GFP_RECLAIM_MASK;
va = kmem_cache_alloc_node(vmap_area_cachep, gfp_mask, node);
if (unlikely(!va))
return ERR_PTR(-ENOMEM);
@ -2089,7 +2089,7 @@ retry:
BUG_ON(va->va_start < vstart);
BUG_ON(va->va_end > vend);
ret = kasan_populate_vmalloc(addr, size);
ret = kasan_populate_vmalloc(addr, size, gfp_mask);
if (ret) {
free_vmap_area(va);
return ERR_PTR(ret);
@ -4826,7 +4826,7 @@ retry:
/* populate the kasan shadow space */
for (area = 0; area < nr_vms; area++) {
if (kasan_populate_vmalloc(vas[area]->va_start, sizes[area]))
if (kasan_populate_vmalloc(vas[area]->va_start, sizes[area], GFP_KERNEL))
goto err_free_shadow;
}