Crypto/chcr: fix for ccm(aes) failed test

[ Upstream commit 10b0c75d7bc19606fa9a62c8ab9180e95c0e0385 ]

The ccm(aes) test fails when req->assoclen > ~240bytes.

The problem is the value assigned to auth_offset is wrong.
As auth_offset is unsigned char, it can take max value as 255.
So fix it by making it unsigned int.

Signed-off-by: Ayush Sawal <ayush.sawal@chelsio.com>
Signed-off-by: Devulapally Shiva Krishna <shiva@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c
index 446fb896ee6d1a12d629f31136e0bd0ddaaf1323..6c2cd36048ea2b3659b9f7de0f9d97e933d85a45 100644 (file)
--- a/drivers/crypto/chelsio/chcr_algo.c
+++ b/drivers/crypto/chelsio/chcr_algo.c
@@ -2925,7 +2925,7 @@ static void fill_sec_cpl_for_aead(struct cpl_tx_sec_pdu *sec_cpl,
        unsigned int mac_mode = CHCR_SCMD_AUTH_MODE_CBCMAC;
        unsigned int rx_channel_id = reqctx->rxqidx / ctx->rxq_perchan;
        unsigned int ccm_xtra;
-       unsigned char tag_offset = 0, auth_offset = 0;
+       unsigned int tag_offset = 0, auth_offset = 0;
        unsigned int assoclen;
 
        if (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309)