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Fix UB in blst aggregate verify (#1107)
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1 changed files with 2 additions and 1 deletions
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@ -93,12 +93,13 @@ bool aggregate_verify(const std::vector<std::pair<P1, td::BufferSlice>> &pubs_ms
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return false;
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}
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std::unique_ptr<blst::Pairing> pairing = std::make_unique<blst::Pairing>(true, DST);
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blst::P2_Affine p2_zero;
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for (const auto &p : pubs_msgs) {
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blst::P1_Affine p1(p.first.data(), P1_SIZE);
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if (!p1.in_group() || p1.is_inf()) {
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return false;
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}
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pairing->aggregate(&p1, nullptr, (const td::uint8 *)p.second.data(), p.second.size());
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pairing->aggregate(&p1, &p2_zero, (const td::uint8 *)p.second.data(), p.second.size());
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}
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pairing->commit();
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blst::P2_Affine p2(sig.data(), P2_SIZE);
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