Commit 0ee14355 authored by Michael Niedermayer's avatar Michael Niedermayer

avcodec/hevc_cabac: Fix integer overflow in ff_hevc_cu_qp_delta_abs()

Fixes: signed integer overflow: 2147483647 + 1073741824 cannot be represented in type 'int'
Fixes: 4555/clusterfuzz-testcase-minimized-4505532481142784

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by: 's avatarMichael Niedermayer <michael@niedermayer.cc>
parent 991ef6e5
......@@ -646,8 +646,10 @@ int ff_hevc_cu_qp_delta_abs(HEVCContext *s)
suffix_val += 1 << k;
k++;
}
if (k == CABAC_MAX_BIN)
if (k == CABAC_MAX_BIN) {
av_log(s->avctx, AV_LOG_ERROR, "CABAC_MAX_BIN : %d\n", k);
return AVERROR_INVALIDDATA;
}
while (k--)
suffix_val += get_cabac_bypass(&s->HEVClc->cc) << k;
......
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