This patch fixes a bug that is triggered when cts(cbc(aes)) is used with
nx-crypto driver on input larger than 32 bytes.
The chaining value from co-processor was not being saved. This value is
needed because it is used as the IV by cts(cbc(aes)).
Signed-off-by: Fionnuala Gunter <f...@linux.vnet.ibm.com>
Reviewed-by: Marcelo Cerri <mhce...@linux.vnet.ibm.com>
---
v2. changed signed-off-by to reviewed-by and added more details to
description
This bug appeared in the original submission (v3.5)
---
drivers/crypto/nx/nx-aes-cbc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/crypto/nx/nx-aes-cbc.c
b/drivers/crypto/nx/nx-aes-cbc.c
index 35d483f..a2f99a9 100644
--- a/drivers/crypto/nx/nx-aes-cbc.c
+++ b/drivers/crypto/nx/nx-aes-cbc.c
@@ -95,6 +95,7 @@ static int cbc_aes_nx_crypt(struct blkcipher_desc
*desc,
if (rc)
goto out;
+ memcpy(desc->info, csbcpb->cpb.aes_cbc.cv, AES_BLOCK_SIZE);
atomic_inc(&(nx_ctx->stats->aes_ops));
atomic64_add(csbcpb->csb.processed_byte_count,
&(nx_ctx->stats->aes_bytes));
--
1.7.10.4
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