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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-04-16 17:45:41 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-05-06 00:22:27 +0200 |
| commit | 8f0e200a12c25e288acd31eff0a5000bc74aa34e (patch) | |
| tree | 81f2e0cce7e4a6a3861395d5f854d807dba4d5ab /libavcodec | |
| parent | 6e98cf0280cd693ef82c4444fe15bc7aef8771b3 (diff) | |
| download | ffmpeg-8f0e200a12c25e288acd31eff0a5000bc74aa34e.tar.gz | |
avcodec/dpcm: fix undefined interger overflow in wady
Fixes: signed integer overflow: -2147375930 + -133875 cannot be represented in type 'int'
Fixes: 45982/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WADY_DPCM_fuzzer-6703727013920768
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')
| -rw-r--r-- | libavcodec/dpcm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/dpcm.c b/libavcodec/dpcm.c index 6ea9e2c065..eff6587404 100644 --- a/libavcodec/dpcm.c +++ b/libavcodec/dpcm.c @@ -444,7 +444,7 @@ static int dpcm_decode_frame(AVCodecContext *avctx, AVFrame *frame, if (n & 0x80) s->sample[idx] = sign_extend((n & 0x7f) << 9, 16); else - s->sample[idx] += s->scale * wady_table[n & 0x7f]; + s->sample[idx] += s->scale * (unsigned)wady_table[n & 0x7f]; *output_samples++ = av_clip_int16(s->sample[idx]); idx ^= stereo; } |