Commit a348c8c6 authored Jun 07, 2019 by Jukka Rissanen

net: llmnr: Check that UDP header can be accessed



It is possible that UDP header cannot be accessed so we need
to check that we do not do null pointer dereference.

Coverity-CID: 198866
Fixes #16581

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>

parent 9bd9b758

subsys/net/lib/dns/llmnr_responder.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -68,6 +68,9 @@ static void create_ipv6_dst_addr(struct net_pkt *pkt,
		struct net_udp_hdr *udp_hdr, hdr;

		udp_hdr = net_udp_get_hdr(pkt, &hdr);
		if (!udp_hdr) {
		return;
		}

		addr->sin6_family = AF_INET6;
		addr->sin6_port = udp_hdr->src_port;

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