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NFSv4: Fix open coded xdr_stream_remaining()

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Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2020-11-21 21:41:08 -05:00
parent eee1f54964
commit 17068466ad
1 changed files with 3 additions and 3 deletions
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6
fs/nfs/nfs4xdr.c
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@ -5337,11 +5337,11 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
res->acl_len = attrlen;
/* Check for receive buffer overflow */
if (res->acl_len > (xdr->nwords << 2) ||
if (res->acl_len > xdr_stream_remaining(xdr) ||
res->acl_len + res->acl_data_offset > xdr->buf->page_len) {
res->acl_flags |= NFS4_ACL_TRUNC;
dprintk("NFS: acl reply: attrlen %u > page_len %u\n",
attrlen, xdr->nwords << 2);
dprintk("NFS: acl reply: attrlen %u > page_len %zu\n",
attrlen, xdr_stream_remaining(xdr));
}
} else
status = -EOPNOTSUPP;