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| author | Eric Biggers <ebiggers@google.com> | 2020-08-12 04:35:27 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-12 20:58:00 +0300 |
| commit | facb03dddec04e4aac1bb2139accdceb04deb1f3 (patch) | |
| tree | 2b8482e9212faa51e9792379588c0ac7be949c1d /fs/proc | |
| parent | da27e0a0e5f655f0d58d4e153c3182bb2b290f64 (diff) | |
| download | linux-facb03dddec04e4aac1bb2139accdceb04deb1f3.tar.xz | |
fs/minix: don't allow getting deleted inodes
If an inode has no links, we need to mark it bad rather than allowing it
to be accessed. This avoids WARNINGs in inc_nlink() and drop_nlink() when
doing directory operations on a fuzzed filesystem.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: syzbot+a9ac3de1b5de5fb10efc@syzkaller.appspotmail.com
Reported-by: syzbot+df958cf5688a96ad3287@syzkaller.appspotmail.com
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Qiujun Huang <anenbupt@gmail.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200628060846.682158-3-ebiggers@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/proc')
0 files changed, 0 insertions, 0 deletions