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| author | OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> | 2017-03-10 03:17:37 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-03-10 04:01:10 +0300 |
| commit | c0d0e351285161a515396b7b1ee53ec9ffd97e3c (patch) | |
| tree | 10a446f71ea3e4ec0e82abadbda61bbdb79bdac1 /fs/userfaultfd.c | |
| parent | ca5b58ea3db88b5e69ba2a1f6bc3cf239cdcc64f (diff) | |
| download | linux-c0d0e351285161a515396b7b1ee53ec9ffd97e3c.tar.xz | |
fat: fix using uninitialized fields of fat_inode/fsinfo_inode
Recently fallocate patch was merged and it uses
MSDOS_I(inode)->mmu_private at fat_evict_inode(). However,
fat_inode/fsinfo_inode that was introduced in past didn't initialize
MSDOS_I(inode) properly.
With those combinations, it became the cause of accessing random entry
in FAT area.
Link: http://lkml.kernel.org/r/87pohrj4i8.fsf@mail.parknet.co.jp
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Reported-by: Moreno Bartalucci <moreno.bartalucci@tecnorama.it>
Tested-by: Moreno Bartalucci <moreno.bartalucci@tecnorama.it>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/userfaultfd.c')
0 files changed, 0 insertions, 0 deletions