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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-10-16 13:30:29 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-10-17 14:36:11 +0200 |
| commit | 01bb12f883dccc419317516e093fdc6dfa41bc31 (patch) | |
| tree | 52dedcb292ccfd731bcad18aae4a6c4db60530cd /libavcodec/utils.c | |
| parent | 3fbf8737923ac49754946a2505367630544b87f1 (diff) | |
avcodec/utils: Check for overflow with ATRAC* in get_audio_frame_duration()
Fixes: signed integer overflow: 1024 * 13129048 cannot be represented in type 'int'
Fixes: 26378/clusterfuzz-testcase-minimized-ffmpeg_dem_CODEC2RAW_fuzzer-5634018353348608
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/utils.c')
| -rw-r--r-- | libavcodec/utils.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c index a43474d437..93ac1cd9f0 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -1614,7 +1614,10 @@ static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba, case AV_CODEC_ID_MP1: return 384; case AV_CODEC_ID_ATRAC1: return 512; case AV_CODEC_ID_ATRAC9: - case AV_CODEC_ID_ATRAC3: return 1024 * framecount; + case AV_CODEC_ID_ATRAC3: + if (framecount > INT_MAX/1024) + return 0; + return 1024 * framecount; case AV_CODEC_ID_ATRAC3P: return 2048; case AV_CODEC_ID_MP2: case AV_CODEC_ID_MUSEPACK7: return 1152; |