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Subject[PATCH 5.4 176/261] ima: Evaluate error in init_ima()
Date
From: Roberto Sassu <roberto.sassu@huawei.com>

commit e144d6b265415ddbdc54b3f17f4f95133effa5a8 upstream.

Evaluate error in init_ima() before register_blocking_lsm_notifier() and
return if not zero.

Cc: stable@vger.kernel.org # 5.3.x
Fixes: b16942455193 ("ima: use the lsm policy update notifier")
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Reviewed-by: James Morris <jamorris@linux.microsoft.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
security/integrity/ima/ima_main.c | 3 +++
1 file changed, 3 insertions(+)

--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -712,6 +712,9 @@ static int __init init_ima(void)
error = ima_init();
}

+ if (error)
+ return error;
+
error = register_blocking_lsm_notifier(&ima_lsm_policy_notifier);
if (error)
pr_warn("Couldn't register LSM notifier, error %d\n", error);

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