Al Viro 0fbe2a72e8 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 13:23:17 +02:00

..

damon

mm/damon/core: merge regions aggressively when max_nr_regions is unmet

2024-07-27 10:46:15 +02:00

kasan

kasan: disable kasan_non_canonical_hook() for HW tags

2023-12-23 10:42:00 +01:00

kfence

mm: kfence: fix using kfence_metadata without initialization in show_object()

2023-03-30 12:48:01 +02:00

backing-dev.c

writeback, cgroup: fix null-ptr-deref write in bdi_split_work_to_wbs

2023-05-11 23:00:18 +09:00

balloon_compaction.c

…

bootmem_info.c

bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem

2022-08-31 17:16:48 +02:00

cleancache.c

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cma_debug.c

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cma_sysfs.c

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cma.c

mm/cma: drop incorrect alignment check in cma_init_reserved_mem

2024-07-05 09:14:13 +02:00

cma.h

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compaction.c

mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations

2024-04-10 16:19:37 +02:00

debug_page_ref.c

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debug_vm_pgtable.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/filemap: avoid buffered read/write race to read inconsistent data

2024-01-05 15:13:39 +01:00

frontswap.c

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gup_test.c

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gup_test.h

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gup.c

mm/migration: return errno when isolate_huge_page failed

2023-02-14 19:17:56 +01:00

highmem.c

highmem: fix checks in __kmap_local_sched_{in,out}

2022-04-13 20:59:21 +02:00

hmm.c

mm/hmm: fault non-owner device private entries

2022-08-03 12:03:54 +02:00

huge_memory.c

mm/userfaultfd: propagate uffd-wp bit when PTE-mapping the huge zeropage

2023-03-22 13:31:35 +01:00

hugetlb_cgroup.c

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hugetlb_vmemmap.c

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hugetlb_vmemmap.h

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hugetlb.c

mm/hugetlb: fix possible recursive locking detected warning

2024-08-19 05:45:10 +02:00

hwpoison-inject.c

mm/hwpoison: avoid the impact of hwpoison_filter() return value on mce handler

2022-07-12 16:35:05 +02:00

init-mm.c

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internal.h

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interval_tree.c

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io-mapping.c

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ioremap.c

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Kconfig

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Kconfig.debug

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khugepaged.c

mm/khugepaged: check again on anon uffd-wp during isolation

2023-04-26 13:51:52 +02:00

kmemleak.c

Revert "mm: kmemleak: take a full lowmem check in kmemleak_*_phys()"

2022-09-15 11:30:00 +02:00

ksm.c

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list_lru.c

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maccess.c

maccess: Fix writing offset in case of fault in strncpy_from_kernel_nofault()

2022-11-26 09:24:47 +01:00

madvise.c

mm: fix madivse_pageout mishandling on non-LRU page

2022-10-05 10:39:39 +02:00

Makefile

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mapping_dirty_helpers.c

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memblock.c

memblock: allow to specify flags with memblock_add_node()

2023-12-20 15:17:33 +01:00

memcontrol.c

memcg_write_event_control(): fix a user-triggerable oops

2024-09-04 13:23:17 +02:00

memfd.c

memfd: check for non-NULL file_seals in memfd_create() syscall

2023-06-28 10:29:45 +02:00

memory_hotplug.c

memblock: allow to specify flags with memblock_add_node()

2023-12-20 15:17:33 +01:00

memory-failure.c

mm/huge_memory: don't unpoison huge_zero_folio

2024-07-05 09:14:22 +02:00

memory.c

x86/mm/pat: fix VM_PAT handling in COW mappings

2024-04-13 13:01:47 +02:00

mempolicy.c

mm/numa_balancing: teach mpol_to_str about the balancing mode

2024-08-19 05:45:17 +02:00

mempool.c

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memremap.c

mm/memremap.c: map FS_DAX device memory as decrypted

2022-11-16 09:58:27 +01:00

memtest.c

memtest: use {READ,WRITE}_ONCE in memory scanning

2024-04-10 16:18:42 +02:00

migrate.c

mm/migrate: set swap entry values of THP tail pages properly.

2024-04-10 16:19:31 +02:00

mincore.c

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mlock.c

mm/mlock: fix potential imbalanced rlimit ucounts adjustment

2022-05-15 20:18:53 +02:00

mm_init.c

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mmap_lock.c

mm: mmap_lock: replace get_memcg_path_buf() with on-stack buffer

2024-08-19 05:45:10 +02:00

mmap.c

mm/mmap: undo ->mmap() when arch_validate_flags() fails

2022-10-26 12:34:24 +02:00

mmu_gather.c

mm/khugepaged: fix GUP-fast interaction by sending IPI

2022-12-14 11:37:17 +01:00

mmu_notifier.c

mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove()

2022-04-27 14:38:58 +02:00

mmzone.c

…

mprotect.c

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mremap.c

mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0)

2022-04-13 20:59:22 +02:00

msync.c

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nommu.c

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oom_kill.c

oom_kill.c: futex: delay the OOM reaper to allow time for proper futex cleanup

2022-04-27 14:38:58 +02:00

page_alloc.c

mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations

2024-04-10 16:19:37 +02:00

page_counter.c

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page_ext.c

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page_idle.c

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page_io.c

mm: fix unexpected zeroed page mapping with zram swap

2022-04-20 09:34:18 +02:00

page_isolation.c

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page_owner.c

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page_poison.c

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page_reporting.c

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page_reporting.h

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page_vma_mapped.c

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page-writeback.c

Revert "mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again"

2024-07-18 13:07:33 +02:00

pagewalk.c

mm: pagewalk: Fix race between unmap and page walker

2022-09-08 12:28:05 +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

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pgalloc-track.h

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pgtable-generic.c

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process_vm_access.c

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ptdump.c

mm: pagewalk: Fix race between unmap and page walker

2022-09-08 12:28:05 +02:00

readahead.c

vfs: fix readahead(2) on block devices

2023-11-20 11:08:13 +01:00

rmap.c

mm/rmap: Fix anon_vma->degree ambiguity leading to double-reuse

2022-09-05 10:30:07 +02:00

rodata_test.c

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secretmem.c

mm: fix dereferencing possible ERR_PTR

2022-10-05 10:39:39 +02:00

shmem.c

tmpfs: verify {g,u}id mount options correctly

2023-09-19 12:22:30 +02:00

shuffle.c

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shuffle.h

…

slab_common.c

mm, kfence: support kmem_dump_obj() for KFENCE objects

2022-04-27 14:38:51 +02:00

slab.c

mm/slab: Fix undefined init_cache_node_node() for NUMA and !SMP

2023-03-30 12:47:56 +02:00

slab.h

mm, kfence: support kmem_dump_obj() for KFENCE objects

2022-04-27 14:38:51 +02:00

slob.c

mm, kfence: support kmem_dump_obj() for KFENCE objects

2022-04-27 14:38:51 +02:00

slub.c

mm: slub: fix flush_cpu_slab()/__free_slab() invocations in task context.

2022-09-28 11:11:44 +02:00

sparse-vmemmap.c

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sparse.c

mm/sparsemem: fix race in accessing memory_section->usage

2024-02-23 08:54:34 +01:00

swap_cgroup.c

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swap_slots.c

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swap_state.c

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swap.c

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swapfile.c

mm: swap: fix race between free_swap_and_cache() and swapoff()

2024-04-10 16:18:39 +02:00

truncate.c

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usercopy.c

mm/usercopy: return 1 from hardened_usercopy __setup() handler

2022-04-08 14:24:14 +02:00

userfaultfd.c

userfaultfd: fix mmap_changing checking in mfill_atomic_hugetlb

2024-03-01 13:21:43 +01:00

util.c

rcu: dump vmalloc memory info safely

2023-09-19 12:22:50 +02:00

vmacache.c

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vmalloc.c

mm/vmalloc: add a safer version of find_vm_area() for debug

2023-09-19 12:22:50 +02:00

vmpressure.c

net-memcg: Fix scope of sockmem pressure indicators

2023-09-19 12:22:33 +02:00

vmscan.c

mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations

2024-04-10 16:19:37 +02:00

vmstat.c

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workingset.c

memcg: sync flush only if periodic flush is delayed

2022-04-27 14:38:57 +02:00

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 08:43:39 +02:00

zswap.c

…