Miaohe Lin 5596d9e8b5 mm/hugetlb: fix potential race in __update_and_free_hugetlb_folio() ... There is a potential race between __update_and_free_hugetlb_folio() and try_memory_failure_hugetlb(): CPU1 CPU2 __update_and_free_hugetlb_folio try_memory_failure_hugetlb folio_test_hugetlb -- It's still hugetlb folio. folio_clear_hugetlb_hwpoison spin_lock_irq(&hugetlb_lock); __get_huge_page_for_hwpoison folio_set_hugetlb_hwpoison spin_unlock_irq(&hugetlb_lock); spin_lock_irq(&hugetlb_lock); __folio_clear_hugetlb(folio); -- Hugetlb flag is cleared but too late. spin_unlock_irq(&hugetlb_lock); When the above race occurs, raw error page info will be leaked. Even worse, raw error pages won't have hwpoisoned flag set and hit pcplists/buddy. Fix this issue by deferring folio_clear_hugetlb_hwpoison() until __folio_clear_hugetlb() is done. So all raw error pages will have hwpoisoned flag set. Link: https://lkml.kernel.org/r/20240708025127.107713-1-linmiaohe@huawei.com Fixes: 32c877191e ("hugetlb: do not clear hugetlb dtor until allocating vmemmap") Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Acked-by: Muchun Song <muchun.song@linux.dev> Reviewed-by: Oscar Salvador <osalvador@suse.de> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2024-07-09 15:41:10 -07:00
..
damon	mm/damon/core: merge regions aggressively when max_nr_regions is unmet	2024-07-03 22:40:36 -07:00
kasan	kasan: fix bad call to unpoison_slab_object	2024-06-24 20:52:09 -07:00
kfence	mm: introduce slabobj_ext to support slab object extensions	2024-04-25 20:55:51 -07:00
kmsan	kmsan: do not wipe out origin when doing partial unpoisoning	2024-06-05 19:19:25 -07:00
backing-dev.c	writeback: support retrieving per group debug writeback stats of bdi	2024-05-05 17:53:51 -07:00
balloon_compaction.c
bootmem_info.c	bootmem: use kmemleak_free_part_phys in put_page_bootmem	2023-10-25 16:47:13 -07:00
cma_debug.c
cma_sysfs.c	mm/cma: add sysfs file 'release_pages_success'	2024-02-22 10:24:57 -08:00
cma.c	mm/cma: drop incorrect alignment check in cma_init_reserved_mem	2024-04-25 20:56:42 -07:00
cma.h	mm/cma: add sysfs file 'release_pages_success'	2024-02-22 10:24:57 -08:00
compaction.c	mm: handle profiling for fake memory allocations during compaction	2024-06-24 20:52:09 -07:00
debug_page_alloc.c	mm: page_alloc: consolidate free page accounting	2024-04-25 20:56:04 -07:00
debug_page_ref.c
debug_vm_pgtable.c	mm/debug_vm_pgtable: drop RANDOM_ORVALUE trick	2024-06-15 10:43:08 -07:00
debug.c	mm/debug: print only page mapcount (excluding folio entire mapcount) in __dump_folio()	2024-05-05 17:53:31 -07:00
dmapool_test.c
dmapool.c	mm/mempool/dmapool: remove CONFIG_DEBUG_SLAB ifdefs	2023-12-05 11:17:58 +01:00
early_ioremap.c
execmem.c	mm/execmem, arch: convert remaining overrides of module_alloc to execmem	2024-05-14 00:31:43 -07:00
fadvise.c
fail_page_alloc.c
failslab.c
filemap.c	filemap: replace pte_offset_map() with pte_offset_map_nolock()	2024-07-09 15:41:10 -07:00
folio-compat.c	mm: remove __set_page_dirty_nobuffers()	2024-04-25 20:56:25 -07:00
gup_test.c
gup_test.h
gup.c	mm: gup: stop abusing try_grab_folio	2024-07-06 11:39:51 -07:00
highmem.c	x86/kexec: use pr_err() instead of kexec_dprintk() when an error occurs	2023-12-29 12:22:28 -08:00
hmm.c	mm/treewide: replace pXd_huge() with pXd_leaf()	2024-04-25 20:55:46 -07:00
huge_memory.c	mm: gup: stop abusing try_grab_folio	2024-07-06 11:39:51 -07:00
hugetlb_cgroup.c	mm/hugetlb: assert hugetlb_lock in __hugetlb_cgroup_commit_charge	2024-05-05 17:53:41 -07:00
hugetlb_vmemmap.c	mm/hugetlb_vmemmap: fix race with speculative PFN walkers	2024-07-03 22:40:38 -07:00
hugetlb_vmemmap.h	mm: hugetlb_vmemmap: fix reference to nonexistent file	2023-10-25 16:47:14 -07:00
hugetlb.c	mm/hugetlb: fix potential race in __update_and_free_hugetlb_folio()	2024-07-09 15:41:10 -07:00
hwpoison-inject.c	mm/memory-failure: convert shake_page() to shake_folio()	2024-05-05 17:53:45 -07:00
init-mm.c	mm: Deprecate pasid field	2023-12-12 10:11:32 +01:00
internal.h	mm: gup: stop abusing try_grab_folio	2024-07-06 11:39:51 -07:00
interval_tree.c
io-mapping.c
ioremap.c
Kconfig	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
Kconfig.debug	mm/slub: unify all sl[au]b parameters with "slab_$param"	2024-01-22 10:31:08 +01:00
khugepaged.c	mm: simplify thp_vma_allowable_order	2024-05-05 17:53:53 -07:00
kmemleak.c	mm: lift gfp_kmemleak_mask() to gfp.h	2024-05-19 14:40:44 -07:00
ksm.c	mm/ksm: fix ksm_zero_pages accounting	2024-06-05 19:19:26 -07:00
list_lru.c	mm/zswap: stop lru list shrinking when encounter warm region	2024-02-22 10:24:54 -08:00
maccess.c
madvise.c	mseal: add mseal syscall	2024-05-23 19:40:26 -07:00
Makefile	mseal: add mseal syscall	2024-05-23 19:40:26 -07:00
mapping_dirty_helpers.c	mm: fix clean_record_shared_mapping_range kernel-doc	2023-08-24 16:20:30 -07:00
memblock.c	memblock: use numa_valid_node() helper to check for invalid node ID	2024-06-16 10:17:57 +03:00
memcontrol.c	mm: fix crashes from deferred split racing folio migration	2024-07-06 11:39:51 -07:00
memfd.c	mm/memfd: refactor memfd_tag_pins() and memfd_wait_for_pins()	2024-03-04 17:01:21 -08:00
memory_hotplug.c	mm/hugetlb: rename dissolve_free_huge_pages() to dissolve_free_hugetlb_folios()	2024-05-05 17:53:35 -07:00
memory-failure.c	mm/memory-failure: fix handling of dissolved but not taken off from buddy pages	2024-05-24 11:55:08 -07:00
memory-tiers.c	memory tier: create CPUless memory tiers after obtaining HMAT info	2024-05-05 17:53:26 -07:00
memory.c	mm/memory: don't require head page for do_set_pmd()	2024-06-24 20:52:11 -07:00
mempolicy.c	mm: add pmd_folio()	2024-04-25 20:56:19 -07:00
mempool.c	mm: fix xyz_noprof functions calling profiled functions	2024-06-05 19:19:26 -07:00
memremap.c	mm: convert put_devmap_managed_page_refs() to put_devmap_managed_folio_refs()	2024-05-05 17:53:49 -07:00
memtest.c	memtest: use {READ,WRITE}_ONCE in memory scanning	2024-03-13 12:12:21 -07:00
migrate_device.c	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
migrate.c	mm: fix crashes from deferred split racing folio migration	2024-07-06 11:39:51 -07:00
mincore.c	mm: enable page walking API to lock vmas during the walk	2023-08-21 13:07:20 -07:00
mlock.c	mm: add pmd_folio()	2024-04-25 20:56:19 -07:00
mm_init.c	Revert "mm: init_mlocked_on_free_v3"	2024-06-15 10:43:05 -07:00
mm_slot.h
mmap_lock.c
mmap.c	mseal: add mseal syscall	2024-05-23 19:40:26 -07:00
mmu_gather.c	mm/mmu_gather: improve cond_resched() handling with large folios and expensive page freeing	2024-02-22 15:27:17 -08:00
mmu_notifier.c	mmu_notifier: remove the .change_pte() callback	2024-04-11 13:18:36 -04:00
mmzone.c	zswap: shrink zswap pool based on memory pressure	2023-12-12 10:57:02 -08:00
mprotect.c	mseal: add mseal syscall	2024-05-23 19:40:26 -07:00
mremap.c	mseal: add mseal syscall	2024-05-23 19:40:26 -07:00
mseal.c	mseal: add mseal syscall	2024-05-23 19:40:26 -07:00
msync.c
nommu.c	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
oom_kill.c	memory: remove the now superfluous sentinel element from ctl_table array	2024-04-25 20:56:32 -07:00
page_alloc.c	mm/page_alloc: Separate THP PCP into movable and non-movable categories	2024-06-24 20:52:11 -07:00
page_counter.c
page_ext.c	mm: make page_ext_get() take a const argument	2024-04-25 20:56:14 -07:00
page_idle.c
page_io.c	mm: drop the 'anon_' prefix for swap-out mTHP counters	2024-06-05 19:19:23 -07:00
page_isolation.c	mm: page_isolation: prepare for hygienic freelists	2024-04-25 20:56:04 -07:00
page_owner.c	mm/page-owner: use gfp_nested_mask() instead of open coded masking	2024-05-19 14:40:44 -07:00
page_poison.c	mm/page_poison: replace kmap_atomic() with kmap_local_page()	2023-12-10 16:51:50 -08:00
page_reporting.c	mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER	2024-01-08 15:27:15 -08:00
page_reporting.h
page_table_check.c	mm/page_table_check: fix crash on ZONE_DEVICE	2024-06-15 10:43:04 -07:00
page_vma_mapped.c	mm: make page_mapped_in_vma conditional on CONFIG_MEMORY_FAILURE	2024-05-05 17:53:45 -07:00
page-writeback.c	mm: avoid overflows in dirty throttling logic	2024-07-03 12:29:24 -07:00
pagewalk.c	mm: pagewalk: assert write mmap lock only for walking the user page tables	2023-12-10 16:51:53 -08:00
percpu-internal.h	mm: percpu: add codetag reference into pcpuobj_ext	2024-04-25 20:55:56 -07:00
percpu-km.c
percpu-stats.c
percpu-vm.c	percpu: clean up all mappings when pcpu_map_pages() fails	2024-04-25 20:55:49 -07:00
percpu.c	mm: percpu: enable per-cpu allocation tagging	2024-04-25 20:55:56 -07:00
pgalloc-track.h
pgtable-generic.c	mm: fix race between __split_huge_pmd_locked() and GUP-fast	2024-05-07 10:37:00 -07:00
process_vm_access.c	mm: fix process_vm_rw page counts	2023-12-10 16:51:39 -08:00
ptdump.c	mm: ptdump: add check_wx_pages debugfs attribute	2024-02-22 10:24:47 -08:00
readahead.c	mm/readahead: limit page cache size in page_cache_ra_order()	2024-07-03 22:40:37 -07:00
rmap.c	mm: do not update memcg stats for NR_{FILE/SHMEM}_PMDMAPPED	2024-05-11 15:41:35 -07:00
rodata_test.c
secretmem.c	mm/secretmem: use a folio in secretmem_fault()	2023-08-21 13:38:02 -07:00
shmem_quota.c	tmpfs: fix race on handling dquot rbtree	2024-03-26 11:07:23 -07:00
shmem.c	mm/shmem: disable PMD-sized page cache if needed	2024-07-03 22:40:37 -07:00
show_mem.c	lib: add memory allocations report in show_mem()	2024-04-25 20:55:57 -07:00
shrinker_debug.c	mm: shrinker: convert shrinker_rwsem to mutex	2023-10-04 10:32:26 -07:00
shrinker.c	mm: shrinker: use kvzalloc_node() from expand_one_shrinker_info()	2024-01-05 09:58:32 -08:00
shuffle.c
shuffle.h	mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER	2024-01-08 15:27:15 -08:00
slab_common.c	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
slab.h	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
slub.c	mm/slab: fix 'variable obj_exts set but not used' warning	2024-06-24 20:52:09 -07:00
sparse-vmemmap.c	mm/vmemmap: allow architectures to override how vmemmap optimization works	2023-08-18 10:12:53 -07:00
sparse.c	mm/sparse: guard the size of mem_section is power of 2	2024-05-05 17:53:40 -07:00
swap_cgroup.c
swap_slots.c	mm: swap: update get_swap_pages() to take folio order	2024-04-25 20:56:37 -07:00
swap_state.c	mm: remove struct page from get_shadow_from_swap_cache	2024-04-25 20:56:40 -07:00
swap.c	mm: add kernel-doc for folio_mark_accessed()	2024-05-05 17:53:50 -07:00
swap.h	mm/swap: fix race when skipping swapcache	2024-02-20 14:20:48 -08:00
swapfile.c	getting rid of bogus set_blocksize() uses, switching it	2024-05-21 08:34:51 -07:00
truncate.c	mm: convert pagecache_isize_extended to use a folio	2024-04-25 20:56:43 -07:00
usercopy.c
userfaultfd.c	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
util.c	hardening fixes for v6.10-rc5	2024-06-17 12:00:22 -07:00
vmalloc.c	mm: vmalloc: check if a hash-index is in cpu_possible_mask	2024-07-03 22:40:36 -07:00
vmpressure.c	eventfd: simplify eventfd_signal()	2023-11-28 14:08:38 +01:00
vmscan.c	mm: drop the 'anon_' prefix for swap-out mTHP counters	2024-06-05 19:19:23 -07:00
vmstat.c	iommu: observability of the IOMMU allocations	2024-04-15 14:31:47 +02:00
workingset.c	cachestat: do not flush stats in recency check	2024-07-03 22:40:37 -07:00
z3fold.c	mm: zpool: return pool size in pages	2024-04-25 20:55:48 -07:00
zbud.c	mm: zpool: return pool size in pages	2024-04-25 20:55:48 -07:00
zpool.c	mm: zpool: return pool size in pages	2024-04-25 20:55:48 -07:00
zsmalloc.c	mm: zpool: return pool size in pages	2024-04-25 20:55:48 -07:00
zswap.c	mm: zswap: remove same_filled module params	2024-05-05 17:53:38 -07:00