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wolfcrypt/src/aes.c: in wc_AesSetKeyLocal(), add an alignment check in the haveAESNI path for WOLFSSL_LINUXKM, because the failure mode is module crash.

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Daniel Pouzzner
2023-05-17 01:07:47 -05:00
parent 40b598289f
commit a18dc7f10a
1 changed files with 6 additions and 0 deletions
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6
wolfcrypt/src/aes.c
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@@ -3129,6 +3129,12 @@ static WARN_UNUSED_RESULT int wc_AesDecrypt(
checkAESNI = 1; checkAESNI = 1;
} }
if (haveAESNI) { if (haveAESNI) {
#ifdef WOLFSSL_LINUXKM
/* runtime alignment check */
if ((unsigned long)&aes->key & 0xf) {
return BAD_ALIGN_E;
}
#endif
aes->use_aesni = 1; aes->use_aesni = 1;
if (iv) if (iv)
XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE); XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE);