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avformat/ipmovie: Free packets allocated in header reading

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Fixes: memleaks
Fixes: 29905/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5679700745781248

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2021-02-01 19:47:16 +01:00
parent 63344337f9
commit 712d3ac539
1 changed files with 6 additions and 2 deletions
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8
libavformat/ipmovie.c
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@ -661,8 +661,10 @@ static int ipmovie_read_header(AVFormatContext *s)
ipmovie->palette[i] = 0xFFU << 24;
/* process the first chunk which should be CHUNK_INIT_VIDEO */
if (process_ipmovie_chunk(ipmovie, pb, &pkt) != CHUNK_INIT_VIDEO)
if (process_ipmovie_chunk(ipmovie, pb, &pkt) != CHUNK_INIT_VIDEO) {
av_packet_unref(&pkt);
return AVERROR_INVALIDDATA;
}
/* peek ahead to the next chunk-- if it is an init audio chunk, process
* it; if it is the first video chunk, this is a silent file */
@ -674,8 +676,10 @@ static int ipmovie_read_header(AVFormatContext *s)
if (chunk_type == CHUNK_VIDEO)
ipmovie->audio_type = AV_CODEC_ID_NONE; /* no audio */
else if (process_ipmovie_chunk(ipmovie, pb, &pkt) != CHUNK_INIT_AUDIO)
else if (process_ipmovie_chunk(ipmovie, pb, &pkt) != CHUNK_INIT_AUDIO) {
av_packet_unref(&pkt);
return AVERROR_INVALIDDATA;
}
/* initialize the stream decoders */
st = avformat_new_stream(s, NULL);