tree a6105aecef17dd3bc25bb1754acb87bbf0639255
parent 5ba4a25ab7b13be528b23f85182f4d09cf7f71ad
author J. Bruce Fields <bfields@redhat.com> 1429644339 -0400
committer J. Bruce Fields <bfields@redhat.com> 1429647361 -0400

nfsd4: disallow SEEK with special stateids

If the client uses a special stateid then we'll pass a NULL file to
vfs_llseek.

Fixes: 24bab491220f " NFSD: Implement SEEK"
Cc: Anna Schumaker <Anna.Schumaker@Netapp.com>
Cc: stable@vger.kernel.org
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>