From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Fri, 24 Aug 2012 14:59:25 +0000 (-0400)
Subject: NFSv4: Fix range checking in __nfs4_get_acl_uncached and __nfs4_proc_set_acl
X-Git-Tag: v3.2.89~39
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6962db53ad0331c5670f5797d212b25ad8338168;p=pandora-kernel.git

NFSv4: Fix range checking in __nfs4_get_acl_uncached and __nfs4_proc_set_acl

commit 21f498c2f73bd6150d82931f09965826dca0b5f2 upstream.

Ensure that the user supplied buffer size doesn't cause us to overflow
the 'pages' array.

Also fix up some confusion between the use of PAGE_SIZE and
PAGE_CACHE_SIZE when calculating buffer sizes. We're not using
the page cache for anything here.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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