linux-kernel - [RFC][PATCH 8/9] ima: include tmpfs in ima_appraise

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Date:	Wed,  7 Jan 2015 15:52:59 -0500
From:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
To:	initramfs <initramfs@...r.kernel.org>
Cc:	Mimi Zohar <zohar@...ux.vnet.ibm.com>,
	Al Viro <viro@...IV.linux.org.uk>,
	linux-ima-devel@...ts.sourceforge.net,
	linux-security-module <linux-security-module@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: [RFC][PATCH 8/9] ima: include tmpfs in ima_appraise_tcb policy

Now that the rootfs includes extended attributes, don't
automatically exclude tmpfs file systems from being appraised.

Signed-off-by: Mimi Zohar <zohar@...ux.vnet.ibm.com>
---
 security/integrity/evm/evm_main.c   | 1 +
 security/integrity/ima/ima_policy.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index 9c71af7..e942e63 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/crypto.h>
 #include <linux/audit.h>
+#include <linux/magic.h>
 #include <linux/xattr.h>
 #include <linux/integrity.h>
 #include <linux/evm.h>
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index d1eefb9..7267eac 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -93,7 +93,9 @@ static struct ima_rule_entry default_appraise_rules[] = {
 	{.action = DONT_APPRAISE, .fsmagic = PROC_SUPER_MAGIC, .flags = IMA_FSMAGIC},
 	{.action = DONT_APPRAISE, .fsmagic = SYSFS_MAGIC, .flags = IMA_FSMAGIC},
 	{.action = DONT_APPRAISE, .fsmagic = DEBUGFS_MAGIC, .flags = IMA_FSMAGIC},
+#ifndef CONFIG_IMA_LOAD_X509
 	{.action = DONT_APPRAISE, .fsmagic = TMPFS_MAGIC, .flags = IMA_FSMAGIC},
+#endif
 	{.action = DONT_APPRAISE, .fsmagic = RAMFS_MAGIC, .flags = IMA_FSMAGIC},
 	{.action = DONT_APPRAISE, .fsmagic = DEVPTS_SUPER_MAGIC, .flags = IMA_FSMAGIC},
 	{.action = DONT_APPRAISE, .fsmagic = BINFMTFS_MAGIC, .flags = IMA_FSMAGIC},
-- 
1.8.1.4

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