Andrey Ryabinin 65375ce7a1 mm: rmap: fix use-after-free in __put_anon_vma ...

commit 624483f3ea upstream.

While working address sanitizer for kernel I've discovered
use-after-free bug in __put_anon_vma.

For the last anon_vma, anon_vma->root freed before child anon_vma.
Later in anon_vma_free(anon_vma) we are referencing to already freed
anon_vma->root to check rwsem.

This fixes it by freeing the child anon_vma before freeing
anon_vma->root.

Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2014-06-11 12:03:26 -07:00

..

backing-dev.c

bdi: avoid oops on device removal

2014-04-26 17:15:35 -07:00

balloon_compaction.c

mm: introduce a common interface for balloon pages mobility

2012-12-11 17:22:26 -08:00

bootmem.c

mm: Add alloc_bootmem_low_pages_nopanic()

2013-01-29 19:32:59 -08:00

bounce.c

mm/bounce.c: fix a regression where MS_SNAP_STABLE (stable pages snapshotting) was ignored

2013-10-13 16:08:33 -07:00

cleancache.c

mm: cleancache: clean up cleancache_enabled

2013-04-30 17:04:01 -07:00

compaction.c

mm/compaction: break out of loop on !PageBuddy in isolate_freepages_block

2014-03-23 21:38:18 -07:00

debug-pagealloc.c

…

dmapool.c

dmapool: make DMAPOOL_DEBUG detect corruption of free marker

2012-12-11 17:22:24 -08:00

fadvise.c

teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long

2013-03-03 22:46:22 -05:00

failslab.c

…

filemap_xip.c

lift sb_start_write() out of ->write()

2013-04-09 14:12:56 -04:00

filemap.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-05-01 17:51:54 -07:00

fremap.c

mm: fix use-after-free in sys_remap_file_pages

2014-01-09 12:24:24 -08:00

frontswap.c

frontswap: fix incorrect zeroing and allocation size for frontswap_map

2013-06-12 16:29:46 -07:00

highmem.c

Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2012-12-20 08:37:05 -08:00

huge_memory.c

thp: fix copy_page_rep GPF by testing is_huge_zero_pmd once only

2014-01-25 08:27:12 -08:00

hugetlb_cgroup.c

mm/hugetlb: create hugetlb cgroup file in hugetlb_init

2012-12-18 15:02:15 -08:00

hugetlb.c

mm/hugetlb.c: add cond_resched_lock() in return_unused_surplus_pages()

2014-05-30 21:52:12 -07:00

hwpoison-inject.c

…

init-mm.c

…

internal.h

mm: accelerate munlock() treatment of THP pages

2013-02-27 19:10:09 -08:00

interval_tree.c

mm: add CONFIG_DEBUG_VM_RB build option

2012-10-09 16:22:42 +09:00

Kconfig

mmKconfig: add an option to disable bounce

2013-04-29 15:54:40 -07:00

Kconfig.debug

…

kmemcheck.c

…

kmemleak-test.c

…

kmemleak.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

ksm.c

mm: close PageTail race

2014-04-03 12:01:05 -07:00

maccess.c

…

madvise.c

mm: madvise: complete input validation before taking lock

2013-04-29 15:54:37 -07:00

Makefile

memcg: add memory.pressure_level events

2013-04-29 15:54:38 -07:00

memblock.c

memblock: fix missing comment of memblock_insert_region()

2013-04-29 15:54:38 -07:00

memcontrol.c

memcg: reparent charges of children before processing parent

2014-03-23 21:38:20 -07:00

memory_hotplug.c

mm/memory_hotplug.c: fix printk format warnings

2013-05-24 16:22:52 -07:00

memory-failure.c

mm/memory-failure.c: fix memory leak by race between poison and unpoison

2014-06-11 12:03:22 -07:00

memory.c

mm: make fixup_user_fault() check the vma access rights too

2014-06-07 13:25:29 -07:00

mempolicy.c

mm/mempolicy.c: fix mempolicy printing in numa_maps

2014-02-06 11:08:12 -08:00

mempool.c

…

migrate.c

mm: numa: avoid unnecessary work on the failure path

2014-01-09 12:24:23 -08:00

mincore.c

swap: make each swap partition have one address_space

2013-02-23 17:50:17 -08:00

mlock.c

mm: try_to_unmap_cluster() should lock_page() before mlocking

2014-05-06 07:55:32 -07:00

mm_init.c

mm: init: report on last-nid information stored in page->flags

2013-02-23 17:50:18 -08:00

mmap.c

mm: ensure get_unmapped_area() returns higher address than mmap_min_addr

2013-12-04 10:56:39 -08:00

mmu_context.c

mm: remove old aio use_mm() comment

2013-05-07 18:38:27 -07:00

mmu_notifier.c

mm: mmu_notifier: re-fix freed page still mapped in secondary MMU

2013-05-24 16:22:51 -07:00

mmzone.c

mm: rename page struct field helpers

2013-02-23 17:50:18 -08:00

mprotect.c

mm: fix TLB flush race between migration, and change_protection_range

2014-01-09 12:24:23 -08:00

mremap.c

mm, thp: close race between mremap() and split_huge_page()

2014-06-07 13:25:31 -07:00

msync.c

…

nobootmem.c

mm, nobootmem: do memset() after memblock_reserve()

2013-04-29 15:54:39 -07:00

nommu.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal

2013-05-01 07:21:43 -07:00

oom_kill.c

mm, oom: base root bonus on current usage

2014-02-13 13:48:02 -08:00

page_alloc.c

mm: close PageTail race

2014-04-03 12:01:05 -07:00

page_cgroup.c

memcontrol: use N_MEMORY instead N_HIGH_MEMORY

2012-12-12 17:38:32 -08:00

page_io.c

Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block

2013-05-08 10:13:35 -07:00

page_isolation.c

mm: fix zone_watermark_ok_safe() accounting of isolated pages

2013-01-04 16:11:46 -08:00

page-writeback.c

mm: __set_page_dirty_nobuffers() uses spin_lock_irqsave() instead of spin_lock_irq()

2014-02-20 11:06:11 -08:00

pagewalk.c

mm/pagewalk.c: fix walk_page_range() access of wrong PTEs

2013-11-13 12:05:34 +09:00

percpu-km.c

…

percpu-vm.c

…

percpu.c

percpu: make pcpu_alloc_chunk() use pcpu_mem_free() instead of kfree()

2014-06-07 13:25:37 -07:00

pgtable-generic.c

mm: fix TLB flush race between migration, and change_protection_range

2014-01-09 12:24:23 -08:00

process_vm_access.c

Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys

2013-03-12 11:05:45 -07:00

quicklist.c

…

readahead.c

teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long

2013-03-03 22:46:22 -05:00

rmap.c

mm: rmap: fix use-after-free in __put_anon_vma

2014-06-11 12:03:26 -07:00

shmem.c

cope with potentially long ->d_dname() output for shmem/hugetlb

2013-10-18 07:45:45 -07:00

slab_common.c

slab: prevent warnings when allocating with __GFP_NOWARN

2013-06-13 10:01:58 +03:00

slab.c

slab: fix init_lock_keys

2013-07-21 18:21:26 -07:00

slab.h

memcg: check that kmem_cache has memcg_params before accessing it

2013-09-07 22:09:58 -07:00

slob.c

mm: rename page struct field helpers

2013-02-23 17:50:18 -08:00

slub.c

slub: Fix calculation of cpu slabs

2014-02-13 13:48:00 -08:00

sparse-vmemmap.c

sparse-vmemmap: specify vmemmap population range in bytes

2013-04-29 15:54:35 -07:00

sparse.c

mm, hotplug: avoid compiling memory hotremove functions when disabled

2013-04-29 15:54:37 -07:00

swap_state.c

swap: avoid read_swap_cache_async() race to deadlock while waiting on discard I/O completion

2013-06-12 16:29:45 -07:00

swap.c

mm: close PageTail race

2014-04-03 12:01:05 -07:00

swapfile.c

frontswap: fix incorrect zeroing and allocation size for frontswap_map

2013-06-12 16:29:46 -07:00

truncate.c

mm: drop vmtruncate

2012-12-20 18:46:29 -05:00

util.c

swap: make each swap partition have one address_space

2013-02-23 17:50:17 -08:00

vmalloc.c

mm/vmalloc.c: fix an overflow bug in alloc_vmap_area()

2013-11-13 12:05:34 +09:00

vmpressure.c

memcg: add memory.pressure_level events

2013-04-29 15:54:38 -07:00

vmscan.c

mm/page-writeback.c: do not count anon pages as dirtyable memory

2014-02-13 13:48:00 -08:00

vmstat.c

mm: numa: return the number of base pages altered by protection changes

2013-12-08 07:29:27 -08:00