X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fconcatdec.c;h=88b6dbe6a4472a9b2a83469ca682e0223da602f8;hb=033764e015e33b9ce9583317092337367b3fea2b;hp=969b00155102e447f6aa33a2753bbc309838bca1;hpb=649b2e4c8308c478d6c9fb892191121f12e3c0d3;p=ffmpeg

diff --git a/libavformat/concatdec.c b/libavformat/concatdec.c
index 969b0015510..88b6dbe6a44 100644
--- a/libavformat/concatdec.c
+++ b/libavformat/concatdec.c
@@ -394,6 +394,11 @@ static int concat_read_header(AVFormatContext *avf)
                 av_log(avf, AV_LOG_ERROR, "Line %d: packet metadata required\n", line);
                 FAIL(AVERROR_INVALIDDATA);
             }
+            if (!file) {
+                av_log(avf, AV_LOG_ERROR, "Line %d: %s without file\n",
+                       line, keyword);
+                FAIL(AVERROR_INVALIDDATA);
+            }
             if ((ret = av_dict_parse_string(&file->metadata, metadata, "=", "", 0)) < 0) {
                 av_log(avf, AV_LOG_ERROR, "Line %d: failed to parse metadata string\n", line);
                 av_freep(&metadata);