From: Thomas Graf <tgraf@redhat.com>
Date: Tue, 6 Nov 2012 13:22:50 +0000 (+0100)
Subject: nl_recv: return NLE_INVAL if buf is NULL
X-Git-Tag: libnl3_2_15~50
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=eb3606690973420d3d402f1d8e4ac5c2b3304615;p=libnl

nl_recv: return NLE_INVAL if buf is NULL
---

diff --git a/lib/nl.c b/lib/nl.c
index f4141e7..17bd834 100644
--- a/lib/nl.c
+++ b/lib/nl.c
@@ -464,6 +464,9 @@ int nl_recv(struct nl_sock *sk, struct sockaddr_nl *nla,
 	struct ucred* tmpcreds = NULL;
 	int retval = 0;
 
+	if (!buf)
+		return -NLE_INVAL;
+
 	if (sk->s_flags & NL_MSG_PEEK)
 		flags |= MSG_PEEK | MSG_TRUNC;