From: Michael Niedermayer Date: Mon, 1 Feb 2021 18:55:03 +0000 (+0100) Subject: avcodec/utils: Use more bits for intermediate for AV_CODEC_ID_ADPCM_MS X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=0f441b9063281d8ef5d4c30b10379d08aad8924f;p=ffmpeg avcodec/utils: Use more bits for intermediate for AV_CODEC_ID_ADPCM_MS Fixes: signed integer overflow: 1172577312 * 2 cannot be represented in type 'int' Fixes: 29924/clusterfuzz-testcase-minimized-ffmpeg_dem_BOA_fuzzer-4882912874594304 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- diff --git a/libavcodec/utils.c b/libavcodec/utils.c index b8a8c0ac2e6..66d286565b7 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -1797,7 +1797,7 @@ static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba, case AV_CODEC_ID_ADPCM_IMA_RAD: return blocks * ((ba - 4 * ch) * 2 / ch); case AV_CODEC_ID_ADPCM_MS: - return blocks * (2 + (ba - 7 * ch) * 2 / ch); + return blocks * (2 + (ba - 7 * ch) * 2LL / ch); case AV_CODEC_ID_ADPCM_MTAF: return blocks * (ba - 16) * 2 / ch; }