Messages in this thread Patch in this message | | | From | Kai Ye <> | Subject | [PATCH 3/5] crypto: hisilicon/sec - fix the max length of AAD for the CCM mode | Date | Sat, 31 Jul 2021 11:26:34 +0800 |
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Fix the maximum length of AAD for the CCM mode due to the hardware limited
Signed-off-by: Kai Ye <yekai13@huawei.com> --- 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 b3ac1bd..010bde9 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(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
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