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nfsd: Revert "nfsd: check for oversized NFSv2/v3 arguments"

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This reverts commit 51f5677777 "nfsd: check for oversized NFSv2/v3
arguments", which breaks support for NFSv3 ACLs.

That patch was actually an earlier draft of a fix for the problem that
was eventually fixed by e6838a29ec "nfsd: check for oversized NFSv2/v3
arguments".  But somehow I accidentally left this earlier draft in the
branch that was part of my 2.12 pull request.

Reported-by: Eryu Guan <eguan@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields
2017-05-16 15:57:42 -04:00
parent 2ea659a9ef
commit 9512a16b0e
3 changed files with 11 additions and 28 deletions
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3
include/linux/sunrpc/svc.h
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@@ -336,7 +336,8 @@ xdr_argsize_check(struct svc_rqst *rqstp, __be32 *p)
{
char *cp = (char *)p;
struct kvec *vec = &rqstp->rq_arg.head[0];
return cp == (char *)vec->iov_base + vec->iov_len;
return cp >= (char*)vec->iov_base
&& cp <= (char*)vec->iov_base + vec->iov_len;
}
static inline int