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| author | Andy Lutomirski <luto@amacapital.net> | 2012-07-06 03:00:11 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-06 21:34:38 +0400 |
| commit | 9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb (patch) | |
| tree | d69ebd5c2e2af1a2de34cc8abe2d57a4eebd35a5 /drivers/mtd/mtdcore.c | |
| parent | 1b7fa4c27111757789b21bb78543317dad4cfd08 (diff) | |
| download | linux-9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb.tar.xz | |
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/mtd/mtdcore.c')
0 files changed, 0 insertions, 0 deletions