From: J. Bruce Fields <bfields@redhat.com>
Date: Tue, 21 Apr 2015 19:25:39 +0000 (-0400)
Subject: nfsd4: disallow SEEK with special stateids
X-Git-Tag: omap-for-v4.2/o2_dc~32^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=980608fb50aea34993ba956b71cd4602aa42b14b;p=pandora-kernel.git

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>
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