From d34d4b6a7ce7fa72239c47d22ab6592d0687ac86 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 16 Jun 2024 23:42:37 +0200 Subject: [PATCH] avcodec/r210enc: Use av_rescale for bitrate Fixes: signed integer overflow: 281612954574848 * 65344 cannot be represented in type 'long' Fixes: 68956/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_R210_fuzzer-6459074458746880 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/r210enc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/r210enc.c b/libavcodec/r210enc.c index 91e3452874..ec1ebc8d60 100644 --- a/libavcodec/r210enc.c +++ b/libavcodec/r210enc.c @@ -35,7 +35,7 @@ static av_cold int encode_init(AVCodecContext *avctx) avctx->bits_per_coded_sample = 32; if (avctx->width > 0) - avctx->bit_rate = ff_guess_coded_bitrate(avctx) * aligned_width / avctx->width; + avctx->bit_rate = av_rescale(ff_guess_coded_bitrate(avctx), aligned_width, avctx->width); return 0; }