From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934831Ab1KJFJ1 (ORCPT ); Thu, 10 Nov 2011 00:09:27 -0500 Received: from cantor2.suse.de ([195.135.220.15]:42331 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934739Ab1KJD0z (ORCPT ); Wed, 9 Nov 2011 22:26:55 -0500 X-Mailbox-Line: From gregkh@clark.kroah.org Wed Nov 9 13:27:09 2011 Message-Id: <20111109212709.651759648@clark.kroah.org> User-Agent: quilt/0.48-16.4 Date: Wed, 09 Nov 2011 13:26:53 -0800 From: Greg KH To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Bernd Schubert , "J. Bruce Fields" Subject: [091/262] nfsd4: Remove check for a 32-bit cookie in nfsd4_readdir() In-Reply-To: <20111109212847.GA20838@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Bernd Schubert commit 832023bffb4b493f230be901f681020caf3ed1f8 upstream. Fan Yong noticed setting FMODE_32bithash wouldn't work with nfsd v4, as nfsd4_readdir() checks for 32 bit cookies. However, according to RFC 3530 cookies have a 64 bit type and cookies are also defined as u64 in 'struct nfsd4_readdir'. So remove the test for >32-bit values. Signed-off-by: Bernd Schubert Signed-off-by: J. Bruce Fields Signed-off-by: Greg Kroah-Hartman --- fs/nfsd/nfs4proc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -682,7 +682,7 @@ nfsd4_readdir(struct svc_rqst *rqstp, st readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); - if ((cookie > ~(u32)0) || (cookie == 1) || (cookie == 2) || + if ((cookie == 1) || (cookie == 2) || (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) return nfserr_bad_cookie;