avcodec/cbs_av1: Free content in cbs_av1_free_metadata()

Fixes: memleak
Fixes: 25838/clusterfuzz-testcase-minimized-ffmpeg_BSF_TRACE_HEADERS_fuzzer-5736255957237760
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

diff --git a/libavcodec/cbs_av1.c b/libavcodec/cbs_av1.c
index 65cf45fcfad1af7ff9d1af6c7b0996a9371520f2..8aa7b09fa729d38556f000daf26a022c00a8ed2c 100644 (file)
--- a/libavcodec/cbs_av1.c
+++ b/libavcodec/cbs_av1.c
@@ -1228,6 +1228,7 @@ static void cbs_av1_free_metadata(void *unit, uint8_t *content)
         av_buffer_unref(&md->metadata.itut_t35.payload_ref);
         break;
     }
+    av_free(content);
 }
 
 static const CodedBitstreamUnitTypeDescriptor cbs_av1_unit_types[] = {