# \[RFC 16/20\] ima: Use ns\_capable() for namespace policy access

- From: Stefan Berger \<stefanb@linux.ibm.com\>
- Date: 2021-11-30 16:08:35 
- List: linux-integrity
- Page: https://ratatoskr.run/linux-integrity/2021/11/1591762
- Thread: https://ratatoskr.run/linux-integrity/2021/11/1591754/t.md

```text
Replace capable() with ns_capable() for IMA namespace policy access with
the CAP_SYS_ADMIN permission.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
---
 security/integrity/ima/ima_fs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index 6c86f81c9998..fd2798f2d224 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -393,7 +393,7 @@ static int ima_open_policy(struct inode *inode, struct file *filp)
 #else
 		if ((filp->f_flags & O_ACCMODE) != O_RDONLY)
 			return -EACCES;
-		if (!capable(CAP_SYS_ADMIN))
+		if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN))
 			return -EPERM;
 		return seq_open(filp, &ima_policy_seqops);
 #endif
-- 
2.31.1

```