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avcodec/vp3dsp: Use unsigned constant to avoid undefined integer overflow in ff_vp3dsp_set_bounding_values() 

Fixes: signed integer overflow: 64 * 33686018 cannot be represented in type 'int'
Fixes: 26911/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_THEORA_fuzzer-4904975073017856

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c7e775f712)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2020-11-10 00:04:51 +01:00
parent 89db9bbfc3
commit df388f600d
1 changed files with 1 additions and 1 deletions
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libavcodec/vp3dsp.c
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@ -490,5 +490,5 @@ void ff_vp3dsp_set_bounding_values(int * bounding_values_array, int filter_limit
}
if (value)
bounding_values[128] = value;
bounding_values[129] = bounding_values[130] = filter_limit * 0x02020202;
bounding_values[129] = bounding_values[130] = filter_limit * 0x02020202U;
}