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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-05-11 21:04:00 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-05-19 22:14:37 +0200 |
| commit | 4c725df059dd9a5f2071e204924105b3ceb74cbc (patch) | |
| tree | 4c1164bf1b6e0e7f9cdd297e497ca143087c48eb | |
| parent | 6a9302739f5b20791eac7f40d9d999f822227fd1 (diff) | |
| download | ffmpeg-4c725df059dd9a5f2071e204924105b3ceb74cbc.tar.gz | |
avcodec/mpeg12dec: Use 64bit in bit computation
I dont think this can actually overflow but 64bit seems reasonable to use
Fixes: CID1521983 Unintentional integer overflow
Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/mpeg12dec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c index a9fe3503db..9fd765f030 100644 --- a/libavcodec/mpeg12dec.c +++ b/libavcodec/mpeg12dec.c @@ -2734,7 +2734,7 @@ static int ipu_decode_frame(AVCodecContext *avctx, AVFrame *frame, int ret; // Check for minimal intra MB size (considering mb header, luma & chroma dc VLC, ac EOB VLC) - if (avpkt->size*8LL < (avctx->width+15)/16 * ((avctx->height+15)/16) * (2 + 3*4 + 2*2 + 2*6)) + if (avpkt->size*8LL < (avctx->width+15)/16 * ((avctx->height+15)/16) * (2LL + 3*4 + 2*2 + 2*6)) return AVERROR_INVALIDDATA; ret = ff_get_buffer(avctx, frame, 0); |