Thread (54 messages) 54 messages, 5 authors, 2021-12-02

[RFC 17/20] ima: Use integrity_admin_ns_capable() to check corresponding capability

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From: Stefan Berger <stefanb@linux.ibm.com>
Date: 2021-11-30 16:08:21
Also in: linux-security-module, lkml
Subsystem: extended verification module (evm), integrity measurement architecture (ima), security subsystem, the rest · Maintainers: Mimi Zohar, Roberto Sassu, Dmitry Kasatkin, Paul Moore, James Morris, "Serge E. Hallyn", Linus Torvalds

Revision rfc of 9 in this series.

Revisions (9)
  1. rfc current
  2. v2 [diff vs current]
  3. v6 [diff vs current]
  4. v10 [diff vs current]
  5. v11 [diff vs current]
  6. v12 [diff vs current]
  7. v13 [diff vs current]
  8. v14 [diff vs current]
  9. v15 [diff vs current]
From: Denis Semakin <redacted>

Use integrity_admin_ns_capable() to check corresponding capability to
allow read/write IMA policy without CAP_SYS_ADMIN but with
CAP_INTEGRITY_ADMIN.

Signed-off-by: Denis Semakin <redacted>
---
 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 fd2798f2d224..6766bb8262f2 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 (!ns_capable(ns->user_ns, CAP_SYS_ADMIN))
+		if (!integrity_admin_ns_capable(ns->user_ns))
 			return -EPERM;
 		return seq_open(filp, &ima_policy_seqops);
 #endif
-- 
2.31.1
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