mirror of https://gitee.com/openkylin/linux.git
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull do_move_mount() fix from Al Viro: "Regression fix" * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: vfs: move_mount: reject moving kernel internal mounts
This commit is contained in:
commit
2cd7cdc7e4
|
@ -2596,11 +2596,12 @@ static int do_move_mount(struct path *old_path, struct path *new_path)
|
|||
if (!check_mnt(p))
|
||||
goto out;
|
||||
|
||||
/* The thing moved should be either ours or completely unattached. */
|
||||
if (attached && !check_mnt(old))
|
||||
/* The thing moved must be mounted... */
|
||||
if (!is_mounted(&old->mnt))
|
||||
goto out;
|
||||
|
||||
if (!attached && !(ns && is_anon_ns(ns)))
|
||||
/* ... and either ours or the root of anon namespace */
|
||||
if (!(attached ? check_mnt(old) : is_anon_ns(ns)))
|
||||
goto out;
|
||||
|
||||
if (old->mnt.mnt_flags & MNT_LOCKED)
|
||||
|
|
Loading…
Reference in New Issue