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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-12-03 19:48:46 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-02 19:55:09 +0200 |
| commit | a1474a83048620d734001414db0f75e16d97adcc (patch) | |
| tree | 4582a70db7095a98f7b4d7f611b341c2291d1a59 | |
| parent | 6583f572d1244736e5ef8599cf7a8296347274b4 (diff) | |
| download | ffmpeg-a1474a83048620d734001414db0f75e16d97adcc.tar.gz | |
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; |