From bde8a67e92db0345cf04ad5c90edf4127ad7ffa3 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 3 Jun 2024 01:19:36 +0200 Subject: [PATCH] avformat/libzmq: Check av_strstart() Fixes: CID1453457 Unchecked return value Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer (cherry picked from commit 0263b6a48caaff839e4c28df15b299b89c7da92d) Signed-off-by: Michael Niedermayer --- libavformat/libzmq.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/libavformat/libzmq.c b/libavformat/libzmq.c index 04c72ac601..f4bb849e46 100644 --- a/libavformat/libzmq.c +++ b/libavformat/libzmq.c @@ -94,7 +94,10 @@ static int zmq_proto_open(URLContext *h, const char *uri, int flags) return AVERROR_EXTERNAL; } - av_strstart(uri, "zmq:", &uri); + if (av_strstart(uri, "zmq:", &uri)) { + av_log(h, AV_LOG_ERROR, "URL %s lacks prefix\n", uri); + return AVERROR(EINVAL); + } /*publish during write*/ if (h->flags & AVIO_FLAG_WRITE) {