diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index fb168a3..01ba60a 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -280,6 +280,7 @@
 	rqstp->rq_res.page_base = 0;
 	rqstp->rq_res.page_len = 0;
 	rqstp->rq_res.buflen = PAGE_SIZE;
+	rqstp->rq_res.tail[0].iov_base = NULL;
 	rqstp->rq_res.tail[0].iov_len = 0;
 	/* Will be turned off only in gss privacy case: */
 	rqstp->rq_sendfile_ok = 1;