lkml.org 
[lkml]   [2020]   [Apr]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH -next v2] IMA: fix memdup.cocci warnings
Date
Fixes coccicheck warning:

security/integrity/ima/ima_policy.c:272:10-17: WARNING opportunity for kmemdup

Use kmemdup rather than duplicating its implementation

Fixes: b16942455193 ("ima: use the lsm policy update notifier")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
---
security/integrity/ima/ima_policy.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index c334e0d..185f8d7 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -269,7 +269,7 @@ 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);
+ nentry = kmemdup(entry, sizeof(*nentry), GFP_KERNEL);
if (!nentry)
return NULL;

@@ -277,7 +277,6 @@ static struct ima_rule_entry *ima_lsm_copy_rule(struct ima_rule_entry *entry)
* Immutable elements are copied over as pointers and data; only
* lsm rules can change
*/
- memcpy(nentry, entry, sizeof(*nentry));
memset(nentry->lsm, 0, sizeof_field(struct ima_rule_entry, lsm));

for (i = 0; i < MAX_LSM_RULES; i++) {
--
2.6.2
\
 
 \ /
  Last update: 2020-04-14 12:33    [W:0.052 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site