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avcodec/flacdec: Fix signed integer overflow in decode_subframe_fixed()
Fixes undefined behavior Fixes: 640912-media Found-by: Matt Wolenetz <wolenetz@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 83a75bf6c31b3c0ce2ca7e1426d1f2e3df634239) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -268,7 +268,8 @@ static int decode_subframe_fixed(FLACContext *s, int32_t *decoded,
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int pred_order, int bps)
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{
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const int blocksize = s->blocksize;
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int av_uninit(a), av_uninit(b), av_uninit(c), av_uninit(d), i;
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unsigned av_uninit(a), av_uninit(b), av_uninit(c), av_uninit(d);
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int i;
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int ret;
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/* warm up samples */
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