From 00ae9b77ef757f82660b4b3d2f490374a4f209fd Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 24 Jun 2021 20:00:05 +0200 Subject: [PATCH] avcodec/utils: Use 64bit for intermediate in AV_CODEC_ID_ADPCM_THP* duration calculation Fixes: signed integer overflow: 486539264 * 14 cannot be represented in type 'int' Fixes: 35281/clusterfuzz-testcase-minimized-ffmpeg_dem_RSD_fuzzer-6068262742917120 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/utils.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/utils.c b/libavcodec/utils.c index 342709353f..88e88bc958 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -712,7 +712,7 @@ static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba, case AV_CODEC_ID_ADPCM_THP: case AV_CODEC_ID_ADPCM_THP_LE: if (extradata) - return frame_bytes * 14 / (8 * ch); + return frame_bytes * 14LL / (8 * ch); break; case AV_CODEC_ID_ADPCM_XA: return (frame_bytes / 128) * 224 / ch;