ima: Fix potential memory leak in ima_init_crypto()

stable inclusion
from stable-v5.10.132
commit c1d9702ceb4a091da6bee380627596d1fba09274
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5YS3T

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=c1d9702ceb4a091da6bee380627596d1fba09274

--------------------------------

[ Upstream commit 067d2521 ]

On failure to allocate the SHA1 tfm, IMA fails to initialize and exits
without freeing the ima_algo_array. Add the missing kfree() for
ima_algo_array to avoid the potential memory leak.
Signed-off-by: NJianglei Nie <niejianglei2021@163.com>
Fixes: 6d94809a ("ima: Allocate and initialize tfm for each PCR bank")
Signed-off-by: NMimi Zohar <zohar@linux.ibm.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>

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;