Fixes: integer overflow Fixes: 40313/clusterfuzz-testcase-minimized-ffmpeg_dem_AIFF_fuzzer-4814761406103552
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/aiffdec.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/libavformat/aiffdec.c b/libavformat/aiffdec.c index 648f231a523..7a995c00a66 100644 --- a/libavformat/aiffdec.c +++ b/libavformat/aiffdec.c @@ -185,8 +185,10 @@ static int get_aiff_header(AVFormatContext *s, int size, par->block_align = (av_get_bits_per_sample(par->codec_id) * par->channels) >> 3; if (aiff->block_duration) { - par->bit_rate = (int64_t)par->sample_rate * (par->block_align << 3) / - aiff->block_duration; + par->bit_rate = av_rescale(par->sample_rate, par->block_align * 8LL, + aiff->block_duration); + if (par->bit_rate < 0) + par->bit_rate = 0; } /* Chunk is over */ -- 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".
