Fix the maximum length of AAD for the CCM mode due to the hardware limited.
Signed-off-by: Kai Ye <yekai13@xxxxxxxxxx>
---
drivers/crypto/hisilicon/sec2/sec_crypto.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/crypto/hisilicon/sec2/sec_crypto.c b/drivers/crypto/hisilicon/sec2/sec_crypto.c
index 890faf8..387fb3c 100644
--- a/drivers/crypto/hisilicon/sec2/sec_crypto.c
+++ b/drivers/crypto/hisilicon/sec2/sec_crypto.c
@@ -63,6 +63,7 @@
#define SEC_AUTH_CIPHER 0x1
#define SEC_MAX_MAC_LEN 64
#define SEC_MAX_AAD_LEN 65535
+#define SEC_MAX_CCM_AAD_LEN 65279
#define SEC_TOTAL_MAC_SZ (SEC_MAX_MAC_LEN * QM_Q_DEPTH)
#define SEC_PBUF_SZ 512
@@ -2218,6 +2219,10 @@ static int sec_aead_spec_check(struct sec_ctx *ctx, struct sec_req *sreq)
}
if (c_mode == SEC_CMODE_CCM) {
+ if (unlikely(req->assoclen > SEC_MAX_CCM_AAD_LEN)) {
+ dev_err_ratelimited(dev, "CCM input aad parameter is too long!\n");
+ return -EINVAL;
+ }
ret = aead_iv_demension_check(req);
if (ret) {
dev_err(dev, "aead input iv param error!\n");
--
2.7.4
