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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-01-22 23:11:47 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-02 19:55:09 +0200 |
| commit | e4921f409d839a07c90d232ea0629779ee064e1f (patch) | |
| tree | f54f7d99baf0ffa17d0da194e5d89d4e13ef2e03 | |
| parent | d60daf43bc7dced5088434a7209a7135830bc811 (diff) | |
| download | ffmpeg-e4921f409d839a07c90d232ea0629779ee064e1f.tar.gz | |
avcodec/dpcm: Fix integer overflow in AV_CODEC_ID_GREMLIN_DPCM
Fixes: signed integer overflow: -2147479324 + -32568 cannot be represented in type 'int'
Fixes: 20103/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_GREMLIN_DPCM_fuzzer-5667667579240448
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b1aecad9eae900b9c3054392994d150d5ae572c5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -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 7d3934ee35..5958081b66 100644 --- a/libavcodec/dpcm.c +++ b/libavcodec/dpcm.c @@ -367,7 +367,7 @@ static int dpcm_decode_frame(AVCodecContext *avctx, void *data, while (output_samples < samples_end) { uint8_t n = bytestream2_get_byteu(&gb); - *output_samples++ = s->sample[idx] += s->array[n]; + *output_samples++ = s->sample[idx] += (unsigned)s->array[n]; idx ^= 1; } } |