diff options
| author | Pan Bian <bianpan2016@163.com> | 2019-02-01 14:21:26 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-23 08:44:27 +0100 |
| commit | 0d456fae1fb567882e95a4f8d5151718b5c8129d (patch) | |
| tree | f779b634ef0074ea0208293c7d401bab20dda6f7 /tools/perf/scripts/python | |
| parent | 5d5a802ec2eb1d271ca22e184641015ae0a7b8b2 (diff) | |
autofs: drop dentry reference only when it is never used
[ Upstream commit 63ce5f552beb9bdb41546b3a26c4374758b21815 ]
autofs_expire_run() calls dput(dentry) to drop the reference count of
dentry. However, dentry is read via autofs_dentry_ino(dentry) after
that. This may result in a use-free-bug. The patch drops the reference
count of dentry only when it is never used.
Link: http://lkml.kernel.org/r/154725122396.11260.16053424107144453867.stgit@pluto-themaw-net
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions