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avcodec/cavsdec: Fix runtime error: signed integer overflow: 59 + 2147483600 cannot be represented in type 'int'

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Fixes: 1903/clusterfuzz-testcase-minimized-5359318167715840

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-31 13:21:58 +02:00
parent ddae679458
commit 58f8cd4ac5
1 changed files with 1 additions and 1 deletions
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2
libavcodec/cavsdec.c
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@ -615,7 +615,7 @@ static inline int decode_residual_inter(AVSContext *h)
/* get quantizer */
if (h->cbp && !h->qp_fixed)
h->qp = (h->qp + get_se_golomb(&h->gb)) & 63;
h->qp = (h->qp + (unsigned)get_se_golomb(&h->gb)) & 63;
for (block = 0; block < 4; block++)
if (h->cbp & (1 << block))
decode_residual_block(h, &h->gb, inter_dec, 0, h->qp,