Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 017/146] mnt: If fs_fully_visible fails call put_filesystem. | Date | Mon, 25 Jul 2016 13:54:32 -0700 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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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; + } } }
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