AuxXxilium/linux_dsm_epyc7002
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Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

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Pull crypto fix from Herbert Xu:
 "Fix an oops in the s5p-sss driver when used with ecb(aes)"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: s5p-sss - Fix kernel Oops in AES-ECB mode
This commit is contained in:
Linus Torvalds 2018-02-22 16:38:10 -08:00
commit 0bb78166df
1 changed files with 9 additions and 3 deletions
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12
drivers/crypto/s5p-sss.c
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@ -1922,15 +1922,21 @@ static void s5p_aes_crypt_start(struct s5p_aes_dev *dev, unsigned long mode)
uint32_t aes_control;
unsigned long flags;
int err;
u8 *iv;
aes_control = SSS_AES_KEY_CHANGE_MODE;
if (mode & FLAGS_AES_DECRYPT)
aes_control |= SSS_AES_MODE_DECRYPT;
if ((mode & FLAGS_AES_MODE_MASK) == FLAGS_AES_CBC)
if ((mode & FLAGS_AES_MODE_MASK) == FLAGS_AES_CBC) {
aes_control |= SSS_AES_CHAIN_MODE_CBC;
else if ((mode & FLAGS_AES_MODE_MASK) == FLAGS_AES_CTR)
iv = req->info;
} else if ((mode & FLAGS_AES_MODE_MASK) == FLAGS_AES_CTR) {
aes_control |= SSS_AES_CHAIN_MODE_CTR;
iv = req->info;
} else {
iv = NULL; /* AES_ECB */
}
if (dev->ctx->keylen == AES_KEYSIZE_192)
aes_control |= SSS_AES_KEY_SIZE_192;
@ -1961,7 +1967,7 @@ static void s5p_aes_crypt_start(struct s5p_aes_dev *dev, unsigned long mode)
goto outdata_error;
SSS_AES_WRITE(dev, AES_CONTROL, aes_control);
s5p_set_aes(dev, dev->ctx->aes_key, req->info, dev->ctx->keylen);
s5p_set_aes(dev, dev->ctx->aes_key, iv, dev->ctx->keylen);
s5p_set_dma_indata(dev, dev->sg_src);
s5p_set_dma_outdata(dev, dev->sg_dst);