vfs: Fix incorrect user_ns assignment in proc and mqueue
The user namespace set on a proc superblock should derive from the pid_ns
that the superblock is associated with and, similarly, an mqueue superblock
should derive from the ipc_ns that that is associated with.
Fix both of these to set the proposed user_ns appropriately in the
respective get_tree() functions.
Fixes: a593f22857a3 ("proc: Add fs_context support to procfs")
Fixes: ec772aa43dc7 ("ipc: Convert mqueue fs to fs_context")
Reported-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Alexey Dobriyan <adobriyan@gmail.com>
2 files changed
