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authorEric W. Biederman <ebiederm@xmission.com>2016-06-06 23:36:07 +0300
committerEric W. Biederman <ebiederm@xmission.com>2016-06-07 04:48:31 +0300
commit97c1df3e54e811aed484a036a798b4b25d002ecf (patch)
treea4de3720a182f480db96ea927d1fbbac2e5daf40
parentaf8c34ce6ae32addda3788d54a7e340cad22516b (diff)
downloadlinux-97c1df3e54e811aed484a036a798b4b25d002ecf.tar.xz
mnt: If fs_fully_visible fails call put_filesystem.
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>
-rw-r--r--fs/namespace.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/namespace.c b/fs/namespace.c
index 4fb1691b4355..9d45c8a3414f 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2409,8 +2409,10 @@ 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;
+ }
}
}