NFSv4: Fix range checking in __nfs4_get_acl_uncached and __nfs4_proc_set_acl
authorTrond Myklebust <Trond.Myklebust@netapp.com>
Fri, 24 Aug 2012 14:59:25 +0000 (10:59 -0400)
committerTrond Myklebust <Trond.Myklebust@netapp.com>
Tue, 4 Sep 2012 18:52:43 +0000 (14:52 -0400)
commit21f498c2f73bd6150d82931f09965826dca0b5f2
tree40885b9d8d338c4f1890f384ad2894f465163e91
parent872ece86ea5c367aa92f44689c2d01a1c767aeb3
NFSv4: Fix range checking in __nfs4_get_acl_uncached and __nfs4_proc_set_acl

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>
fs/nfs/nfs4proc.c