Merge tag 'v6.18rc4-SMB-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Merge tag 'v6.18rc4-SMB-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - Fix change notify packet validation check

 - Refcount fix (e.g. rename error paths)

 - Fix potential UAF due to missing locks on directory lease refcount

* tag 'v6.18rc4-SMB-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: client: validate change notify buffer before copy
  smb: client: fix refcount leak in smb2_set_path_attr
  smb: client: fix potential UAF in smb2_close_cached_fid()