net: ethernet: bridge: Avoid null pointer access

If the packet cloning failed, bail out in order to avoid null pointer access. Fixes #81992 Coverity-CID: 434493 Signed-off-by: Jukka Rissanen <[email protected]> (cherry picked from commit ed0dcca)
zephyrproject-rtos · Nov 28, 2024 · 04292a7 · 04292a7
1 parent 371e3a6
commit 04292a7
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/subsys/net/l2/ethernet/bridge.c b/subsys/net/l2/ethernet/bridge.c
@@ -372,6 +372,11 @@ static enum net_verdict bridge_iface_process(struct net_if *iface,
 			 */
 			if (count > 2) {
 				send_pkt = net_pkt_clone(pkt, K_NO_WAIT);
+				if (send_pkt == NULL) {
+					NET_DBG("DROP: clone failed");
+					break;
+				}
+
 				net_pkt_ref(send_pkt);
 			} else {
 				send_pkt = net_pkt_ref(pkt);