From 8491fd4a0c31705c6312a03ef9cc42f1a982625f Mon Sep 17 00:00:00 2001 From: Chris Elston Date: Fri, 17 Sep 2021 12:28:35 +0100 Subject: [PATCH] Fix segfault in dynamic bridge support Signed-off-by: Chris Elston Sending an empty packet to $BRIDGE/new would cause a segfault because the payload pointer was accessed without checking for NULL. This change rejects an empty payload with MOSQ_ERR_INVAL. --- src/bridge_dynamic.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/bridge_dynamic.c b/src/bridge_dynamic.c index ce6348c4..dfe51182 100644 --- a/src/bridge_dynamic.c +++ b/src/bridge_dynamic.c @@ -418,6 +418,8 @@ int bridge__dynamic_parse_payload_new(struct mosquitto_db *db, void* payload, st int len; int nb_param = 0; + if(!payload) return MOSQ_ERR_INVAL; + buf = strtok(payload, "\n"); while(buf) {