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Al Viro fa5bfdf6cb memcg_write_event_control(): fix a user-triggerable oops 
commit 046667c4d3 upstream.

we are *not* guaranteed that anything past the terminating NUL
is mapped (let alone initialized with anything sane).

Fixes: 0dea116876 ("cgroup: implement eventfd-based generic API for notifications")
Cc: stable@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:12:59 +02:00
..
kasan
panic: Consolidate open-coded panic_on_warn checks
2023-02-06 07:49:46 +01:00
backing-dev.c
…
balloon_compaction.c
…
bootmem.c
…
cleancache.c
…
cma_debug.c
…
cma.c
…
cma.h
…
compaction.c
mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations
2024-04-13 12:50:12 +02:00
debug_page_ref.c
…
debug.c
…
dmapool.c
…
early_ioremap.c
…
fadvise.c
…
failslab.c
…
filemap.c
mm: fs: initialize fsdata passed to write_begin/write_end interface
2022-11-25 17:40:29 +01:00
frame_vector.c
v4l2: don't fall back to follow_pfn() if pin_user_pages_fast() fails
2022-12-08 11:18:32 +01:00
frontswap.c
treewide: Remove uninitialized_var() usage
2023-08-11 11:45:01 +02:00
gup_benchmark.c
…
gup.c
…
highmem.c
…
hmm.c
…
huge_memory.c
…
hugetlb_cgroup.c
…
hugetlb.c
mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages
2022-11-03 23:52:29 +09:00
hwpoison-inject.c
…
init-mm.c
…
internal.h
…
interval_tree.c
…
Kconfig
…
Kconfig.debug
…
khugepaged.c
mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths
2023-01-18 11:29:59 +01:00
kmemleak-test.c
…
kmemleak.c
Revert "mm: kmemleak: take a full lowmem check in kmemleak_*_phys()"
2022-09-15 12:17:02 +02:00
ksm.c
treewide: Remove uninitialized_var() usage
2023-08-11 11:45:01 +02:00
list_lru.c
…
maccess.c
…
madvise.c
…
Makefile
…
memblock.c
…
memcontrol.c
memcg_write_event_control(): fix a user-triggerable oops
2024-09-04 13:12:59 +02:00
memfd.c
…
memory_hotplug.c
…
memory-failure.c
mm/memory-failure: fix an incorrect use of tail pages
2024-04-13 12:50:09 +02:00
memory.c
x86/mm/pat: fix VM_PAT handling in COW mappings
2024-04-13 12:50:17 +02:00
mempolicy.c
treewide: Remove uninitialized_var() usage
2023-08-11 11:45:01 +02:00
mempool.c
…
memtest.c
memtest: use {READ,WRITE}_ONCE in memory scanning
2024-04-13 12:50:07 +02:00
migrate.c
mm/migrate: set swap entry values of THP tail pages properly.
2024-04-13 12:50:09 +02:00
mincore.c
…
mlock.c
…
mm_init.c
…
mmap.c
mm: Fix TLB flush for not-first PFNMAP mappings in unmap_region()
2022-09-20 12:26:48 +02:00
mmu_context.c
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mmu_notifier.c
…
mmzone.c
…
mprotect.c
…
mremap.c
mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0)
2022-04-15 14:15:05 +02:00
msync.c
…
nobootmem.c
…
nommu.c
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oom_kill.c
…
page_alloc.c
mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations
2024-04-13 12:50:12 +02:00
page_counter.c
…
page_ext.c
…
page_idle.c
…
page_io.c
mm: fix unexpected zeroed page mapping with zram swap
2022-05-12 12:20:25 +02:00
page_isolation.c
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page_owner.c
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page_poison.c
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page_vma_mapped.c
…
page-writeback.c
mm: avoid overflows in dirty throttling logic
2024-08-19 05:32:07 +02:00
pagewalk.c
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percpu-internal.h
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percpu-km.c
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percpu-stats.c
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percpu-vm.c
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percpu.c
treewide: Remove uninitialized_var() usage
2023-08-11 11:45:01 +02:00
pgtable-generic.c
…
process_vm_access.c
…
quicklist.c
…
readahead.c
vfs: fix readahead(2) on block devices
2023-11-20 10:29:16 +01:00
rmap.c
mm/rmap: Fix anon_vma->degree ambiguity leading to double-reuse
2022-09-05 10:26:34 +02:00
rodata_test.c
…
shmem.c
…
slab_common.c
…
slab.c
…
slab.h
…
slob.c
…
slub.c
treewide: Remove uninitialized_var() usage
2023-08-11 11:45:01 +02:00
sparse-vmemmap.c
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sparse.c
…
swap_cgroup.c
…
swap_slots.c
…
swap_state.c
…
swap.c
treewide: Remove uninitialized_var() usage
2023-08-11 11:45:01 +02:00
swapfile.c
mm/swap: fix swap_info_struct race between swapoff and get_swap_pages()
2023-04-20 12:04:39 +02:00
truncate.c
…
usercopy.c
mm/usercopy: return 1 from hardened_usercopy __setup() handler
2022-04-15 14:14:59 +02:00
userfaultfd.c
userfaultfd: fix mmap_changing checking in mfill_atomic_hugetlb
2024-03-01 13:06:08 +01:00
util.c
random: move randomize_page() into mm where it belongs
2022-06-25 11:49:12 +02:00
vmacache.c
…
vmalloc.c
…
vmpressure.c
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vmscan.c
mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations
2024-04-13 12:50:12 +02:00
vmstat.c
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workingset.c
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z3fold.c
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zbud.c
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zpool.c
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zsmalloc.c
zsmalloc: fix races between asynchronous zspage free and page migration
2022-06-06 08:24:21 +02:00
zswap.c
…