Al Viro fa5bfdf6cb memcg_write_event_control(): fix a user-triggerable oops ...

commit 046667c4d3196938e992fba0dfcde570aa85cd0e 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

mm: bdi: initialize bdi_min_ratio when bdi is unregistered

2021-12-14 10:18:05 +01:00

balloon_compaction.c

…

bootmem.c

…

cleancache.c

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cma_debug.c

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cma.c

mm/cma.c: fail if fixed declaration can't be honored

2019-08-06 19:06:51 +02:00

cma.h

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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

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debug.c

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dmapool.c

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early_ioremap.c

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fadvise.c

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failslab.c

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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

mm/gup_benchmark.c: prevent integer overflow in ioctl

2019-12-01 09:17:07 +01:00

gup.c

gup: document and work around "COW can break either way" issue

2021-04-28 13:16:51 +02:00

highmem.c

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hmm.c

mm/memory_hotplug: shrink zones when offlining memory

2020-01-29 16:43:27 +01:00

huge_memory.c

mm/huge_memory.c: don't discard hugepage if other processes are mapping it

2021-07-20 16:15:58 +02:00

hugetlb_cgroup.c

mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup()

2019-11-20 18:45:20 +01:00

hugetlb.c

mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages

2022-11-03 23:52:29 +09:00

hwpoison-inject.c

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init-mm.c

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internal.h

mm/thp: fix vma_address() if virtual address below file offset

2021-07-11 12:49:28 +02:00

interval_tree.c

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Kconfig

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Kconfig.debug

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khugepaged.c

mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths

2023-01-18 11:29:59 +01:00

kmemleak-test.c

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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

mm: list_lru: set shrinker map bit when child nr_items is not zero

2020-12-11 13:25:02 +01:00

maccess.c

uaccess: Add non-pagefault user-space write function

2020-09-09 19:04:29 +02:00

madvise.c

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Makefile

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memblock.c

memblock: use kfree() to release kmalloced memblock regions

2022-03-02 11:38:14 +01:00

memcontrol.c

memcg_write_event_control(): fix a user-triggerable oops

2024-09-04 13:12:59 +02:00

memfd.c

memfd: fix F_SEAL_WRITE after shmem huge page allocated

2022-03-08 19:04:10 +01:00

memory_hotplug.c

mm/memory_hotplug: use "unsigned long" for PFN in zone_for_pfn_range()

2021-09-22 11:48:12 +02:00

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

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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

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mlock.c

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mm_init.c

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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

mm/mmu_notifier: use hlist_add_head_rcu()

2019-07-31 07:27:08 +02:00

mmzone.c

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mprotect.c

mm, numa: fix bad pmd by atomically check for pmd_trans_huge when marking page tables prot_numa

2020-03-11 14:15:00 +01:00

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

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nobootmem.c

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nommu.c

x86/mm: split vmalloc_sync_all()

2020-03-25 08:06:13 +01:00

oom_kill.c

mm, oom: do not trigger out_of_memory from the #PF

2021-11-26 11:36:17 +01:00

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

mm/page_counter.c: fix protection usage propagation

2020-08-21 11:05:33 +02:00

page_ext.c

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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

mm/page_owner: don't access uninitialized memmaps when reading /proc/pagetypeinfo

2019-10-29 09:19:58 +01:00

page_poison.c

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page_vma_mapped.c

mm/thp: another PVMW_SYNC fix in page_vma_mapped_walk()

2021-07-11 12:49:30 +02:00

page-writeback.c

mm: avoid overflows in dirty throttling logic

2024-08-19 05:32:07 +02:00

pagewalk.c

mm: pagewalk: fix termination condition in walk_pte_range()

2020-10-01 13:14:32 +02:00

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

mm/thp: fix __split_huge_pmd_locked() on shmem migration entry

2021-07-11 12:49:27 +02:00

process_vm_access.c

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quicklist.c

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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

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shmem.c

shmem: fix a race between shmem_unused_huge_shrink and shmem_evict_inode

2022-01-27 09:04:16 +01:00

slab_common.c

mm: slab: fix kmem_cache_create failed when sysfs node not destroyed

2021-07-28 11:13:44 +02:00

slab.c

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slab.h

mm: kmemleak: slob: respect SLAB_NOLEAKTRACE flag

2021-11-26 11:36:23 +01:00

slob.c

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slub.c

treewide: Remove uninitialized_var() usage

2023-08-11 11:45:01 +02:00

sparse-vmemmap.c

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sparse.c

mm/sparse: add the missing sparse_buffer_fini() in error branch

2021-05-22 10:59:38 +02:00

swap_cgroup.c

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swap_slots.c

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swap_state.c

mm/swap_state: fix a data race in swapin_nr_pages

2020-10-01 13:14:47 +02:00

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

mm/thp: unmap_mapping_page() to fix THP truncate_cleanup_page()

2021-07-11 12:49:28 +02:00

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

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vmalloc.c

mm/vmalloc.c: don't dereference possible NULL pointer in __vunmap()

2020-06-03 08:19:49 +02:00

vmpressure.c

mm/vmpressure.c: fix a signedness bug in vmpressure_register_event()

2019-10-17 13:45:19 -07:00

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

mm, vmstat: drop zone->lock in /proc/pagetypeinfo

2021-06-03 08:38:02 +02:00

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

…