• Eric W. Biederman's avatar
    proc: Use nd_jump_link in proc_ns_follow_link · db04dc67
    Eric W. Biederman authored
    
    
    Update proc_ns_follow_link to use nd_jump_link instead of just
    manually updating nd.path.dentry.
    
    This fixes the BUG_ON(nd->inode != parent->d_inode) reported by Dave
    Jones and reproduced trivially with mkdir /proc/self/ns/uts/a.
    
    Sigh it looks like the VFS change to require use of nd_jump_link
    happend while proc_ns_follow_link was baking and since the common case
    of proc_ns_follow_link continued to work without problems the need for
    making this change was overlooked.
    
    Cc: stable@vger.kernel.org
    Signed-off-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
    db04dc67
namespaces.c 7.25 KB