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Fixes

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When building with GCC-8 and enable-intelasm set, GCC reported a memcpy
from and two the same pointer being possible. Added a check for the same
pointer and skipped the copy if the same.
This commit is contained in:
John Safranek
2019-07-16 15:44:45 -07:00
parent c3c705f82b
commit 9c245b7fc5
1 changed files with 2 additions and 1 deletions
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wolfcrypt/src/aes.c
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@@ -1628,6 +1628,7 @@ static void wc_AesDecrypt(Aes* aes, const byte* inBlock, byte* outBlock)
#endif #endif
/* if input and output same will overwrite input iv */ /* if input and output same will overwrite input iv */
if ((const byte*)aes->tmp != inBlock)
XMEMCPY(aes->tmp, inBlock, AES_BLOCK_SIZE); XMEMCPY(aes->tmp, inBlock, AES_BLOCK_SIZE);
AES_ECB_decrypt(inBlock, outBlock, AES_BLOCK_SIZE, (byte*)aes->key, AES_ECB_decrypt(inBlock, outBlock, AES_BLOCK_SIZE, (byte*)aes->key,
aes->rounds); aes->rounds);