[FFmpeg-cvslog] avformat/rmdec: Check for multiple audio_stream_info
Michael Niedermayer
git at videolan.org
Thu Oct 21 00:41:18 EEST 2021
ffmpeg | branch: release/4.3 | Michael Niedermayer <michael at niedermayer.cc> | Wed Sep 29 20:49:27 2021 +0200| [974799368bda4dc95b3c6a265d5285c31cb1d6fe] | committer: Michael Niedermayer
avformat/rmdec: Check for multiple audio_stream_info
Fixes: memleak
Fixes: 39166/clusterfuzz-testcase-minimized-ffmpeg_dem_IVR_fuzzer-5153276690038784
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 8fe3566b8fdf4bcf5eed419c1aab6eb848287ff3)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=974799368bda4dc95b3c6a265d5285c31cb1d6fe
---
libavformat/rmdec.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c
index a5d03da974..67a68bb2d0 100644
--- a/libavformat/rmdec.c
+++ b/libavformat/rmdec.c
@@ -128,6 +128,10 @@ static int rm_read_audio_stream_info(AVFormatContext *s, AVIOContext *pb,
uint32_t version;
int ret;
+ // Duplicate tags
+ if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
+ return AVERROR_INVALIDDATA;
+
/* ra type header */
version = avio_rb16(pb); /* version */
if (version == 3) {
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