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| author | OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> | 2017-03-09 16:17:37 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-03-15 10:02:52 +0800 |
| commit | 63e873679ba99649bf22cc7b964315591cedf4c5 (patch) | |
| tree | 9a43bf1a4f5fe636eb6bf91da4ce03b6a0907699 /lib | |
| parent | 16ace91043bf5fa192bb6e42451524b3c6ad7bd7 (diff) | |
| download | linux-stable-63e873679ba99649bf22cc7b964315591cedf4c5.tar.gz linux-stable-63e873679ba99649bf22cc7b964315591cedf4c5.tar.bz2 linux-stable-63e873679ba99649bf22cc7b964315591cedf4c5.zip | |
fat: fix using uninitialized fields of fat_inode/fsinfo_inode
commit c0d0e351285161a515396b7b1ee53ec9ffd97e3c upstream.
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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions