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Clear Clang finding in CMAC

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This commit is contained in:
Jeffrey Walton 2021-04-20 01:23:01 -04:00
parent 2cfa8a60a1
commit 67daaa2560
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GPG Key ID: B36AB348921B1838
1 changed files with 3 additions and 1 deletions
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4
cmac.cpp
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@ -151,7 +151,9 @@ void CMAC_Base::TruncatedFinal(byte *mac, size_t size)
else
cipher.AdvancedProcessBlocks(m_reg, m_reg+blockSize, m_reg, blockSize, BlockTransformation::BT_DontIncrementInOutPointers|BlockTransformation::BT_XorInput);
memcpy(mac, m_reg, size);
// UBsan finding
if (mac)
memcpy(mac, m_reg, size);
m_counter = 0;
memset(m_reg, 0, blockSize);