Fixes: signed integer overflow: -1300248894420254720 * 16 cannot be represented in type 'long' Fixes: 30879/clusterfuzz-testcase-minimized-ffmpeg_dem_DCSTR_fuzzer-5094464215449600
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/dcstr.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/dcstr.c b/libavformat/dcstr.c index 9041a86539..1233baaf7e 100644 --- a/libavformat/dcstr.c +++ b/libavformat/dcstr.c @@ -43,6 +43,8 @@ static int dcstr_read_header(AVFormatContext *s) st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO; st->codecpar->channels = avio_rl32(s->pb); st->codecpar->sample_rate = avio_rl32(s->pb); + if (st->codecpar->sample_rate < 0) + return AVERROR_INVALIDDATA; codec = avio_rl32(s->pb); align = avio_rl32(s->pb); avio_skip(s->pb, 4); -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
