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| author | Andy Lutomirski | 2012-07-06 01:00:11 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2012-07-06 19:34:38 +0200 |
| commit | 9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb (patch) | |
| tree | d69ebd5c2e2af1a2de34cc8abe2d57a4eebd35a5 /drivers | |
| parent | Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/o... (diff) | |
| download | kernel-qcow2-linux-9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb.tar.gz kernel-qcow2-linux-9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb.tar.xz kernel-qcow2-linux-9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb.zip | |
mm: Hold a file reference in madvise_remove
Otherwise the code races with munmap (causing a use-after-free
of the vma) or with close (causing a use-after-free of the struct
file).
The bug was introduced by commit 90ed52ebe481 ("[PATCH] holepunch: fix
mmap_sem i_mutex deadlock")
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Miklos Szeredi <mszeredi@suse.cz>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: stable@vger.kernel.org
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions