diff options
| author | Michael Niedermayer | 2019-12-03 19:48:46 +0100 |
|---|---|---|
| committer | Michael Niedermayer | 2019-12-31 19:51:57 +0100 |
| commit | 4abd0e1282e8567ed5a49d112719b13b2899ffc3 (patch) | |
| tree | 17e3157ad66c81ea2a003406f364fca11f6ed642 | |
| parent | fd674648a25816cccf5478d0c1846d0821196780 (diff) | |
avcodec/twinvqdec: Correct overflow in block align check
Fixes: signed integer overflow: 538976288 * 8 cannot be represented in type 'int'
Fixes: 19126/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TWINVQ_fuzzer-5687464110325760
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4dc93ae3d725e892927f04002021337c2f90252a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/twinvqdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/twinvqdec.c b/libavcodec/twinvqdec.c index c2353f51b5..c00ebb2ad5 100644 --- a/libavcodec/twinvqdec.c +++ b/libavcodec/twinvqdec.c @@ -404,7 +404,7 @@ static av_cold int twinvq_decode_init(AVCodecContext *avctx) tctx->frame_size = avctx->bit_rate * tctx->mtab->size / avctx->sample_rate + 8; tctx->is_6kbps = 0; - if (avctx->block_align && avctx->block_align * 8 / tctx->frame_size > 1) { + if (avctx->block_align && avctx->block_align * 8LL / tctx->frame_size > 1) { av_log(avctx, AV_LOG_ERROR, "VQF TwinVQ should have only one frame per packet\n"); return AVERROR_INVALIDDATA; |