ima: Use kmemdup rather than kmalloc+memcpy
Issue identified with Coccinelle.
Signed-off-by: Alex Dewar <alex.dewar90@gmail.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index 3422178..5b4bf17 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -353,15 +353,14 @@ 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++) {