diff options
| author | Tetsuo Handa <[email protected]> | 2018-05-01 13:12:14 +0900 |
|---|---|---|
| committer | Miklos Szeredi <[email protected]> | 2018-05-31 12:26:11 +0200 |
| commit | 543b8f8662fe6d21f19958b666ab0051af9db21a (patch) | |
| tree | 4e880da0dfdcdcaeb34e992749529e29f061c631 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 6becdb601bae2a043d7fb9762c4d48699528ea6e (diff) | |
fuse: don't keep dead fuse_conn at fuse_fill_super().
syzbot is reporting use-after-free at fuse_kill_sb_blk() [1].
Since sb->s_fs_info field is not cleared after fc was released by
fuse_conn_put() when initialization failed, fuse_kill_sb_blk() finds
already released fc and tries to hold the lock. Fix this by clearing
sb->s_fs_info field after calling fuse_conn_put().
[1] https://syzkaller.appspot.com/bug?id=a07a680ed0a9290585ca424546860464dd9658db
Signed-off-by: Tetsuo Handa <[email protected]>
Reported-by: syzbot <[email protected]>
Fixes: 3b463ae0c626 ("fuse: invalidation reverse calls")
Cc: John Muir <[email protected]>
Cc: Csaba Henk <[email protected]>
Cc: Anand Avati <[email protected]>
Cc: <[email protected]> # v2.6.31
Signed-off-by: Miklos Szeredi <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions