diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2016-06-06 15:36:07 -0500 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2016-06-17 15:53:06 -0400 |
| commit | fced2a819164c305544bcc8d9a45beea15374528 (patch) | |
| tree | 989a22b3a30db88c70d5fcac2cba83a589300aba | |
| parent | eb1eba6ac8e902b378d1196acb1026e91c40e736 (diff) | |
mnt: If fs_fully_visible fails call put_filesystem.
[ Upstream commit 97c1df3e54e811aed484a036a798b4b25d002ecf ]
Add this trivial missing error handling.
Cc: stable@vger.kernel.org
Fixes: 1b852bceb0d1 ("mnt: Refactor the logic for mounting sysfs and proc in a user namespace")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
| -rw-r--r-- | fs/namespace.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index fce3cc1a3fa7..2b801290b286 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -2390,8 +2390,10 @@ static int do_new_mount(struct path *path, const char *fstype, int flags, mnt_flags |= MNT_NODEV | MNT_LOCK_NODEV; } if (type->fs_flags & FS_USERNS_VISIBLE) { - if (!fs_fully_visible(type, &mnt_flags)) + if (!fs_fully_visible(type, &mnt_flags)) { + put_filesystem(type); return -EPERM; + } } } |