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Commit 060190fb authored by Mimi Zohar's avatar Mimi Zohar
Browse files

ima: don't measure/appraise files on efivarfs 



Update the builtin IMA policies specified on the boot command line
(eg. ima_policy="tcb|appraise_tcb") to permit accessing efivar files.

Signed-off-by: default avatarMimi Zohar <zohar@linux.ibm.com>
parent 399574c6

security/integrity/ima/ima_policy.c

+3 −1
Original line number Diff line number Diff line
@@ -107,7 +107,8 @@ static struct ima_rule_entry dont_measure_rules[] __ro_after_init = { 
	 .flags = IMA_FSMAGIC},

	{.action = DONT_MEASURE, .fsmagic = CGROUP2_SUPER_MAGIC,

	 .flags = IMA_FSMAGIC},

	{.action = DONT_MEASURE, .fsmagic = NSFS_MAGIC, .flags = IMA_FSMAGIC}

	{.action = DONT_MEASURE, .fsmagic = NSFS_MAGIC, .flags = IMA_FSMAGIC},

	{.action = DONT_MEASURE, .fsmagic = EFIVARFS_MAGIC, .flags = IMA_FSMAGIC}

};



static struct ima_rule_entry original_measurement_rules[] __ro_after_init = {
@@ -150,6 +151,7 @@ static struct ima_rule_entry default_appraise_rules[] __ro_after_init = { 
	{.action = DONT_APPRAISE, .fsmagic = SELINUX_MAGIC, .flags = IMA_FSMAGIC},

	{.action = DONT_APPRAISE, .fsmagic = SMACK_MAGIC, .flags = IMA_FSMAGIC},

	{.action = DONT_APPRAISE, .fsmagic = NSFS_MAGIC, .flags = IMA_FSMAGIC},

	{.action = DONT_APPRAISE, .fsmagic = EFIVARFS_MAGIC, .flags = IMA_FSMAGIC},

	{.action = DONT_APPRAISE, .fsmagic = CGROUP_SUPER_MAGIC, .flags = IMA_FSMAGIC},

	{.action = DONT_APPRAISE, .fsmagic = CGROUP2_SUPER_MAGIC, .flags = IMA_FSMAGIC},

#ifdef CONFIG_IMA_WRITE_POLICY