Fixes: signed integer overflow: -14671840 * 8224 cannot be represented in type 'int' Fixes: 24793/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5101884323659776
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/rmdec.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c index a36e693ab2..9bb11149e2 100644 --- a/libavformat/rmdec.c +++ b/libavformat/rmdec.c @@ -162,7 +162,11 @@ static int rm_read_audio_stream_info(AVFormatContext *s, AVIOContext *pb, avio_rb16(pb); /* version2 */ avio_rb32(pb); /* header size */ flavor= avio_rb16(pb); /* add codec info / flavor */ - ast->coded_framesize = coded_framesize = avio_rb32(pb); /* coded frame size */ + coded_framesize = avio_rb32(pb); /* coded frame size */ + if (coded_framesize < 0) + return AVERROR_INVALIDDATA; + ast->coded_framesize = coded_framesize; + avio_rb32(pb); /* ??? */ bytes_per_minute = avio_rb32(pb); if (version == 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".
