From: Alex Dewar <alex.dewar90@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Alex Dewar <alex.dewar90@gmail.com>,
Mimi Zohar <zohar@linux.ibm.com>,
Dmitry Kasatkin <dmitry.kasatkin@gmail.com>,
James Morris <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
linux-integrity@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] ima: Use kmemdup rather than kmalloc+memcpy
Date: Wed, 9 Sep 2020 20:09:06 +0100 [thread overview]
Message-ID: <20200909190907.164013-1-alex.dewar90@gmail.com> (raw)
Issue identified with Coccinelle.
Signed-off-by: Alex Dewar <alex.dewar90@gmail.com>
---
security/integrity/ima/ima_policy.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index b4de33074b37..1de3140b334f 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -284,15 +284,14 @@ static struct ima_rule_entry *ima_lsm_copy_rule(struct ima_rule_entry *entry)
struct ima_rule_entry *nentry;
int i;
- nentry = kmalloc(sizeof(*nentry), GFP_KERNEL);
- if (!nentry)
- return NULL;
-
/*
* Immutable elements are copied over as pointers and data; only
* lsm rules can change
*/
- memcpy(nentry, entry, sizeof(*nentry));
+ nentry = kmemdup(entry, sizeof(*nentry), GFP_KERNEL);
+ if (!nentry)
+ return NULL;
+
memset(nentry->lsm, 0, sizeof_field(struct ima_rule_entry, lsm));
for (i = 0; i < MAX_LSM_RULES; i++) {
--
2.28.0
next reply other threads:[~2020-09-09 19:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-09 19:09 Alex Dewar [this message]
2020-09-15 14:14 ` [PATCH] ima: Use kmemdup rather than kmalloc+memcpy Mimi Zohar
-- strict thread matches above, loose matches on Subject: below --
2020-08-24 21:21 [PATCH] ima: use kmemdup() " Alex Dewar
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