Fixes: 15271/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5735262606327808
Fixes: signed integer overflow: -2147483648 - 8 cannot be represented in type 'int'
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
header_size = avio_rb32(s->pb);
+ if (header_size < 0)
+ return AVERROR_INVALIDDATA;
+
st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
st->codecpar->codec_id = AV_CODEC_ID_TWINVQ;
st->start_time = 0;
len = avio_rb32(s->pb);
- if ((unsigned) len > INT_MAX/2) {
+ if ((unsigned) len > INT_MAX/2 || header_size < 8) {
av_log(s, AV_LOG_ERROR, "Malformed header\n");
return -1;
}