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avcodec/siren: Fix integer overflow in get_dw()

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Fixes: signed integer overflow: 685813396 + 1803454769 cannot be represented in type 'int'
Fixes: 21073/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SIREN_fuzzer-5744900508483584

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2020-03-18 20:20:43 +01:00
parent c85bf16318
commit 3197b0099b
1 changed files with 1 additions and 1 deletions
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libavcodec/siren.c
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@ -363,7 +363,7 @@ typedef struct SirenContext {
int sample_rate_bits;
int region_size;
int dw1, dw2, dw3, dw4;
unsigned dw1, dw2, dw3, dw4;
int absolute_region_power_index[32];
float decoder_standard_deviation[32];