diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2019-04-02 15:17:34 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2019-04-09 19:18:19 -0400 |
| commit | ce285c267a003acbf607f3540ff71287f82e5282 (patch) | |
| tree | e1fc114f3e1246fc819452ce1254e0df777f12bd /fs/autofs/inode.c | |
| parent | 5467a68cbf6884c9a9d91e2a89140afb1839c835 (diff) | |
autofs: fix use-after-free in lockless ->d_manage()
autofs_d_release() can overlap with lockless ->d_manage(),
ending up with autofs_dentry_ino() freed under the latter.
Make freeing autofs_info instances RCU-delayed...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/autofs/inode.c')
| -rw-r--r-- | fs/autofs/inode.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c index 80597b88718b..fb0225f21c12 100644 --- a/fs/autofs/inode.c +++ b/fs/autofs/inode.c @@ -36,7 +36,7 @@ void autofs_clean_ino(struct autofs_info *ino) void autofs_free_ino(struct autofs_info *ino) { - kfree(ino); + kfree_rcu(ino, rcu); } void autofs_kill_sb(struct super_block *sb) |