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Diffstat (limited to 'security/integrity/ima/ima_policy.c')
-rw-r--r--security/integrity/ima/ima_policy.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index 6a68ec270822..2ba72bc5d9c2 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -552,7 +552,7 @@ static bool ima_match_rule_data(struct ima_rule_entry *rule,
/**
* ima_match_rules - determine whether an inode matches the policy rule.
* @rule: a pointer to a rule
- * @mnt_userns: user namespace of the mount the inode was found from
+ * @idmap: idmap of the mount the inode was found from
* @inode: a pointer to an inode
* @cred: a pointer to a credentials structure for user validation
* @secid: the secid of the task to be validated
@@ -563,7 +563,7 @@ static bool ima_match_rule_data(struct ima_rule_entry *rule,
* Returns true on rule match, false on failure.
*/
static bool ima_match_rules(struct ima_rule_entry *rule,
- struct user_namespace *mnt_userns,
+ struct mnt_idmap *idmap,
struct inode *inode, const struct cred *cred,
u32 secid, enum ima_hooks func, int mask,
const char *func_data)
@@ -572,6 +572,7 @@ static bool ima_match_rules(struct ima_rule_entry *rule,
bool result = false;
struct ima_rule_entry *lsm_rule = rule;
bool rule_reinitialized = false;
+ struct user_namespace *mnt_userns = mnt_idmap_owner(idmap);
if ((rule->flags & IMA_FUNC) &&
(rule->func != func && func != POST_SETATTR))
@@ -713,7 +714,7 @@ static int get_subaction(struct ima_rule_entry *rule, enum ima_hooks func)
/**
* ima_match_policy - decision based on LSM and other conditions
- * @mnt_userns: user namespace of the mount the inode was found from
+ * @idmap: idmap of the mount the inode was found from
* @inode: pointer to an inode for which the policy decision is being made
* @cred: pointer to a credentials structure for which the policy decision is
* being made
@@ -732,7 +733,7 @@ static int get_subaction(struct ima_rule_entry *rule, enum ima_hooks func)
* list when walking it. Reads are many orders of magnitude more numerous
* than writes so ima_match_policy() is classical RCU candidate.
*/
-int ima_match_policy(struct user_namespace *mnt_userns, struct inode *inode,
+int ima_match_policy(struct mnt_idmap *idmap, struct inode *inode,
const struct cred *cred, u32 secid, enum ima_hooks func,
int mask, int flags, int *pcr,
struct ima_template_desc **template_desc,
@@ -752,7 +753,7 @@ int ima_match_policy(struct user_namespace *mnt_userns, struct inode *inode,
if (!(entry->action & actmask))
continue;
- if (!ima_match_rules(entry, mnt_userns, inode, cred, secid,
+ if (!ima_match_rules(entry, idmap, inode, cred, secid,
func, mask, func_data))
continue;