linux-kernel - [PATCH] crypto: ccp - release hmac_buf if ccp_run_sha

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Date:   Fri, 13 Sep 2019 18:48:23 -0500
From:   Navid Emamdoost <navid.emamdoost@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     emamd001@....edu, smccaman@....edu, kjlu@....edu,
        Navid Emamdoost <navid.emamdoost@...il.com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Gary Hook <gary.hook@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] crypto: ccp - release hmac_buf if ccp_run_sha_cmd fails

In ccp_run_sha_cmd, if the type of sha is invalid, the allocated
hmac_buf should be released.

Signed-off-by: Navid Emamdoost <navid.emamdoost@...il.com>
---
 drivers/crypto/ccp/ccp-ops.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/crypto/ccp/ccp-ops.c b/drivers/crypto/ccp/ccp-ops.c
index 9bc3c62157d7..cff16f0cc15b 100644
--- a/drivers/crypto/ccp/ccp-ops.c
+++ b/drivers/crypto/ccp/ccp-ops.c
@@ -1782,6 +1782,7 @@ static int ccp_run_sha_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
 			       LSB_ITEM_SIZE);
 			break;
 		default:
+			kfree(hmac_buf);
 			ret = -EINVAL;
 			goto e_ctx;
 		}
-- 
2.17.1