linux-kernel - [PATCH 22/23] LSM: Fix setting of the IMA data in inode init

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Message-ID: <e5fb34e1-43ee-bee1-2751-065e8b2b083a@schaufler-ca.com>
Date:   Thu, 10 May 2018 17:56:10 -0700
From:   Casey Schaufler <casey@...aufler-ca.com>
To:     LSM <linux-security-module@...r.kernel.org>,
        LKLM <linux-kernel@...r.kernel.org>,
        Paul Moore <paul@...l-moore.com>,
        Stephen Smalley <sds@...ho.nsa.gov>,
        SE Linux <selinux@...ho.nsa.gov>,
        "SMACK-discuss@...ts.01.org" <SMACK-discuss@...ts.01.org>,
        John Johansen <john.johansen@...onical.com>,
        Kees Cook <keescook@...omium.org>,
        Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
        James Morris <jmorris@...ei.org>
Subject: [PATCH 22/23] LSM: Fix setting of the IMA data in inode init

From: Casey Schaufler <casey@...aufler-ca.com>
Date: Thu, 10 May 2018 16:23:47 -0700
Subject: [PATCH 22/23] LSM: Fix setting of the IMA data in inode init

Fix a missing assignment in the inode security initialization.
The EVM entry was not being set correctly.

Signed-off-by: Casey Schaufler <casey@...aufler-ca.com>
---
 security/security.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/security/security.c b/security/security.c
index ef51783e967e..571643cc7256 100644
--- a/security/security.c
+++ b/security/security.c
@@ -941,6 +941,7 @@ int security_inode_init_security(struct inode *inode, struct inode *dir,
 							&lsm_xattr->value_len);
 		if (rc == 0) {
 			lsm_xattr++;
+			evm_xattr = lsm_xattr;
 			if (ret == -EOPNOTSUPP)
 				ret = 0;
 		} else if (rc != -EOPNOTSUPP) {
@@ -950,7 +951,7 @@ int security_inode_init_security(struct inode *inode, struct inode *dir,
 	}
 
 	if (ret == 0) {
-		rc = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
+		rc = evm_inode_init_security(inode, new_xattrs, evm_xattr);
 		if (rc == 0)
 			rc = initxattrs(inode, new_xattrs, fs_data);
 	}
-- 
2.14.3