[FFmpeg-devel] [PATCH 6/7] avcodec/utils: USe 64bit in get_audio_frame_duration() for ADPCM_DTK

[Michael Niedermayer]

Fixes: signed integer overflow: 131203586 * 28 cannot be represented in type 'int'
Fixes: 26817/clusterfuzz-testcase-minimized-ffmpeg_dem_MSF_fuzzer-6296902548848640

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavcodec/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 110496cc44..82506ea69c 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -1687,7 +1687,7 @@ static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
                 return frame_bytes / (9 * ch) * 16;
             case AV_CODEC_ID_ADPCM_PSX:
             case AV_CODEC_ID_ADPCM_DTK:
-                return frame_bytes / (16 * ch) * 28;
+                return frame_bytes / ((int64_t)16 * ch) * 28;
             case AV_CODEC_ID_ADPCM_4XM:
             case AV_CODEC_ID_ADPCM_IMA_DAT4:
             case AV_CODEC_ID_ADPCM_IMA_ISS:
-- 
2.17.1