Message ID | 20210117225311.17297-5-michael@niedermayer.cc |
---|---|
State | Accepted |
Commit | 0af0a80cef0eae709b727896e92b44382c3feca8 |
Headers | show |
Series | [FFmpeg-devel,1/5] avformat/sccdec: Use larger intermediate for ts/next_ts computation | expand |
Context | Check | Description |
---|---|---|
andriy/x86_make | success | Make finished |
andriy/x86_make_fate | success | Make fate finished |
andriy/PPC64_make | success | Make finished |
andriy/PPC64_make_fate | success | Make fate finished |
diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c index 3da4150f05..d6ec6ca250 100644 --- a/libavformat/wavdec.c +++ b/libavformat/wavdec.c @@ -643,7 +643,8 @@ break_loop: } else if (st->codecpar->codec_id == AV_CODEC_ID_XMA1 || st->codecpar->codec_id == AV_CODEC_ID_XMA2) { st->codecpar->block_align = 2048; - } else if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_MS && st->codecpar->channels > 2) { + } else if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_MS && st->codecpar->channels > 2 && + st->codecpar->block_align < INT_MAX / st->codecpar->channels) { st->codecpar->block_align *= st->codecpar->channels; }
Fixes: signed integer overflow: 65535 * 65312 cannot be represented in type 'int' Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_WAV_fuzzer-6606935226974208 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavformat/wavdec.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)