tree e602da8c751a208c72ca7beb7edbdd10cf955884
parent 4be34b9d69c97211ff4eb00d79078f3c1593804d
author J. Bruce Fields <bfields@redhat.com> 1301021474 -0400
committer J. Bruce Fields <bfields@redhat.com> 1301022687 -0400

nfsd: fix auth_domain reference leak on nlm operations

This was noticed by users who performed more than 2^32 lock operations
and hence made this counter overflow (eventually leading to
use-after-free's).  Setting rq_client to NULL here means that it won't
later get auth_domain_put() when it should be.

Appears to have been introduced in 2.5.42 by "[PATCH] kNFSd: Move auth
domain lookup into svcauth" which moved most of the rq_client handling
to common svcauth code, but left behind this one line.

Cc: Neil Brown <neilb@suse.de>
Cc: stable@kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>