| From 97c1df3e54e811aed484a036a798b4b25d002ecf Mon Sep 17 00:00:00 2001 |
| From: "Eric W. Biederman" <ebiederm@xmission.com> |
| Date: Mon, 6 Jun 2016 15:36:07 -0500 |
| Subject: mnt: If fs_fully_visible fails call put_filesystem. |
| |
| From: Eric W. Biederman <ebiederm@xmission.com> |
| |
| commit 97c1df3e54e811aed484a036a798b4b25d002ecf upstream. |
| |
| Add this trivial missing error handling. |
| |
| 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| fs/namespace.c | 4 +++- |
| 1 file changed, 3 insertions(+), 1 deletion(-) |
| |
| --- a/fs/namespace.c |
| +++ b/fs/namespace.c |
| @@ -2401,8 +2401,10 @@ static int do_new_mount(struct path *pat |
| 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; |
| + } |
| } |
| } |
| |
