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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-08-11 14:41:13 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-10-17 21:34:53 +0200 |
| commit | 18f85c4a937ba3526e260e2938333313d5b7f1ac (patch) | |
| tree | e23ff8aad74114465dacf6b931d074b81143b9f3 | |
| parent | 8e729daf086ae592a18774663d1c8a0321448323 (diff) | |
| download | ffmpeg-18f85c4a937ba3526e260e2938333313d5b7f1ac.tar.gz | |
avformat/siff: Reject audio packets without audio stream
Fixes: Assertion failure
Fixes: 24612/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-6600899842277376.fuzz
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8931c55789a69f717b4a6954c5bb7acf5475a134)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/siff.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/siff.c b/libavformat/siff.c index b6ea390598..40eed8d700 100644 --- a/libavformat/siff.c +++ b/libavformat/siff.c @@ -200,6 +200,8 @@ static int siff_read_packet(AVFormatContext *s, AVPacket *pkt) if (c->curstrm == -1) { c->pktsize = avio_rl32(s->pb) - 4; c->flags = avio_rl16(s->pb); + if (c->flags & VB_HAS_AUDIO && !c->has_audio) + return AVERROR_INVALIDDATA; c->gmcsize = (c->flags & VB_HAS_GMC) ? 4 : 0; if (c->gmcsize) avio_read(s->pb, c->gmc, c->gmcsize); |