Commit eb2550a4 authored Nov 26, 2024 by Jukka Rissanen Committed by Benjamin Cabé Nov 28, 2024

net: dns: Check parsing error properly for response



If the packet parsing fails in dns_unpack_response_query(), then
do not continue further but bail out early.

Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>

parent 3c59bd4f

subsys/net/lib/dns/resolve.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -789,6 +789,11 @@ int dns_validate_msg(struct dns_resolve_context *ctx,

		ret = dns_unpack_response_query(dns_msg);
		if (ret < 0) {
		if (ret == -ENOMEM) {
		ret = DNS_EAI_FAIL;
		goto quit;
		}

		/* Check mDNS like above */
		if (*dns_id > 0) {
		ret = DNS_EAI_FAIL;

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