This is a note to let you know that I've just added the patch titled mnt: If fs_fully_visible fails call put_filesystem. to the 4.6-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mnt-if-fs_fully_visible-fails-call-put_filesystem.patch and it can be found in the queue-4.6 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 97c1df3e54e811aed484a036a798b4b25d002ecf Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx> Date: Mon, 6 Jun 2016 15:36:07 -0500 Subject: mnt: If fs_fully_visible fails call put_filesystem. From: Eric W. Biederman <ebiederm@xxxxxxxxxxxx> 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@xxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/namespace.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/fs/namespace.c +++ b/fs/namespace.c @@ -2409,8 +2409,10 @@ 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; + } } } Patches currently in stable-queue which might be from ebiederm@xxxxxxxxxxxx are queue-4.6/mnt-fs_fully_visible-test-the-proper-mount-for-mnt_locked.patch queue-4.6/mnt-if-fs_fully_visible-fails-call-put_filesystem.patch queue-4.6/mnt-account-for-ms_rdonly-in-fs_fully_visible.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html