linux-kernel - [PATCH v2 2/3] IMA: Add log statements for failure conditions.

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Date:   Mon, 10 Feb 2020 18:47:54 -0800
From:   Tushar Sugandhi <tusharsu@...ux.microsoft.com>
To:     zohar@...ux.ibm.com, joe@...ches.com, skhan@...uxfoundation.org,
        linux-integrity@...r.kernel.org
Cc:     sashal@...nel.org, nramas@...ux.microsoft.com,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/3] IMA: Add log statements for failure conditions.

process_buffer_measurement() and ima_alloc_key_entry()
functions do not have log messages for failure conditions.

This change adds log statements in the above functions. 

Signed-off-by: Tushar Sugandhi <tusharsu@...ux.microsoft.com>
Reviewed-by: Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>
---
 security/integrity/ima/ima_main.c       | 3 +++
 security/integrity/ima/ima_queue_keys.c | 1 +
 2 files changed, 4 insertions(+)

diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 9fe949c6a530..ee01ee34eec8 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -757,6 +757,9 @@ void process_buffer_measurement(const void *buf, int size,
 		ima_free_template_entry(entry);
 
 out:
+	if (ret < 0)
+		pr_err("Process buffer measurement failed, result: %d\n", ret);
+
 	return;
 }
 
diff --git a/security/integrity/ima/ima_queue_keys.c b/security/integrity/ima/ima_queue_keys.c
index c87c72299191..6a9ee52649c4 100644
--- a/security/integrity/ima/ima_queue_keys.c
+++ b/security/integrity/ima/ima_queue_keys.c
@@ -90,6 +90,7 @@ static struct ima_key_entry *ima_alloc_key_entry(struct key *keyring,
 
 out:
 	if (rc) {
+		pr_err("Key entry allocation failed, result: %d\n", rc);
 		ima_free_key_entry(entry);
 		entry = NULL;
 	}
-- 
2.17.1