From 88fc295838b3cf16b43c0bbea5766fe92b18dd17 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 25 Apr 2021 20:12:13 +0200 Subject: [PATCH] avformat/pp_bnk: Use 64bit in bitrate computation Fixes: signed integer overflow: 1207959552 * 4 cannot be represented in type 'int' Fixes: 29102/clusterfuzz-testcase-minimized-ffmpeg_dem_PP_BNK_fuzzer-6747301169201152 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavformat/pp_bnk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/pp_bnk.c b/libavformat/pp_bnk.c index 9455a575b7..18961e301a 100644 --- a/libavformat/pp_bnk.c +++ b/libavformat/pp_bnk.c @@ -223,7 +223,7 @@ static int pp_bnk_read_header(AVFormatContext *s) par->bits_per_coded_sample = 4; par->bits_per_raw_sample = 16; par->block_align = 1; - par->bit_rate = par->sample_rate * par->bits_per_coded_sample * par->channels; + par->bit_rate = par->sample_rate * (int64_t)par->bits_per_coded_sample * par->channels; avpriv_set_pts_info(st, 64, 1, par->sample_rate); st->start_time = 0;