linux-kernel - [PATCH] ima/evm: Fix potential memory leak in ima_init

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Message-Id: <20220711072202.2319030-1-niejianglei2021@163.com>
Date:   Mon, 11 Jul 2022 15:22:02 +0800
From:   Jianglei Nie <niejianglei2021@....com>
To:     zohar@...ux.ibm.com, dmitry.kasatkin@...il.com, jmorris@...ei.org,
        serge@...lyn.com
Cc:     linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Jianglei Nie <niejianglei2021@....com>
Subject: [PATCH] ima/evm: Fix potential memory leak in ima_init_crypto()

This patch adds the missing kfree() for ima_algo_array allocated by
kcalloc() to avoid potential memory leak.

Signed-off-by: Jianglei Nie <niejianglei2021@....com>
---
 security/integrity/ima/ima_crypto.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index a7206cc1d7d1..64499056648a 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -205,6 +205,7 @@ int __init ima_init_crypto(void)
 
 		crypto_free_shash(ima_algo_array[i].tfm);
 	}
+	kfree(ima_algo_array);
 out:
 	crypto_free_shash(ima_shash_tfm);
 	return rc;
-- 
2.25.1