[FFmpeg-devel] [PATCH 2/4] avformat/cafdec: Do not store empty keys in read_info_chunk()

[Michael Niedermayer]

Fixes: Timeout
Fixes: 45543/clusterfuzz-testcase-minimized-ffmpeg_dem_CAF_fuzzer-5684953164152832

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavformat/cafdec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavformat/cafdec.c b/libavformat/cafdec.c
index f0c2c50c59..f6c84e0dae 100644
--- a/libavformat/cafdec.c
+++ b/libavformat/cafdec.c
@@ -241,6 +241,8 @@ static void read_info_chunk(AVFormatContext *s, int64_t size)
         char value[1024];
         avio_get_str(pb, INT_MAX, key, sizeof(key));
         avio_get_str(pb, INT_MAX, value, sizeof(value));
+        if (!*key)
+            continue;
         av_dict_set(&s->metadata, key, value, 0);
     }
 }
-- 
2.17.1