Fixes: signed integer overflow: 80 * 92233009 cannot be represented in type 'int' Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_NISTSPHERE_fuzzer-6669100654919680
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/nistspheredec.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavformat/nistspheredec.c b/libavformat/nistspheredec.c index 079369929f..fec5c88892 100644 --- a/libavformat/nistspheredec.c +++ b/libavformat/nistspheredec.c @@ -80,7 +80,9 @@ static int nist_read_header(AVFormatContext *s) avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate); - st->codecpar->block_align = st->codecpar->bits_per_coded_sample * st->codecpar->channels / 8; + if (st->codecpar->bits_per_coded_sample * (uint64_t)st->codecpar->channels / 8 > INT_MAX) + return AVERROR_INVALIDDATA; + st->codecpar->block_align = st->codecpar->bits_per_coded_sample * (uint64_t)st->codecpar->channels / 8; if (avio_tell(s->pb) > header_size) return AVERROR_INVALIDDATA; -- 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".
