From 489f820a6e6161a431ef02e824ae59ebcbe7dea8 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 11 May 2024 21:04:00 +0200 Subject: [PATCH] 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 (cherry picked from commit 4c725df059dd9a5f2071e204924105b3ceb74cbc) Signed-off-by: Michael Niedermayer --- libavcodec/mpeg12dec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c index e8f99dc5cf..b6a2b44bc6 100644 --- a/libavcodec/mpeg12dec.c +++ b/libavcodec/mpeg12dec.c @@ -3000,7 +3000,7 @@ static int ipu_decode_frame(AVCodecContext *avctx, void *data, 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);