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authorTyler Hicks <tyhicks@linux.microsoft.com>2020-07-09 01:19:00 -0500
committerMimi Zohar <zohar@linux.ibm.com>2020-07-16 21:53:55 -0400
commit9ff8a616dfab96a4fa0ddd36190907dc68886d9b (patch)
tree0acdb5172013a9860dd91c3ccc2ce9bcbb01c248 /security/integrity/ima/ima.h
parent34e980bb83a07b533d175221436d698c1312c4a3 (diff)
ima: Have the LSM free its audit rule
Ask the LSM to free its audit rule rather than directly calling kfree(). Both AppArmor and SELinux do additional work in their audit_rule_free() hooks. Fix memory leaks by allowing the LSMs to perform necessary work. Fixes: b16942455193 ("ima: use the lsm policy update notifier") Signed-off-by: Tyler Hicks <tyhicks@linux.microsoft.com> Cc: Janne Karhunen <janne.karhunen@gmail.com> Cc: Casey Schaufler <casey@schaufler-ca.com> Reviewed-by: Mimi Zohar <zohar@linux.ibm.com> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Diffstat (limited to 'security/integrity/ima/ima.h')
-rw-r--r--security/integrity/ima/ima.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index 4515975cc540..59ec28f5c117 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -420,6 +420,7 @@ static inline void ima_free_modsig(struct modsig *modsig)
#ifdef CONFIG_IMA_LSM_RULES
#define security_filter_rule_init security_audit_rule_init
+#define security_filter_rule_free security_audit_rule_free
#define security_filter_rule_match security_audit_rule_match
#else
@@ -430,6 +431,10 @@ static inline int security_filter_rule_init(u32 field, u32 op, char *rulestr,
return -EINVAL;
}
+static inline void security_filter_rule_free(void *lsmrule)
+{
+}
+
static inline int security_filter_rule_match(u32 secid, u32 field, u32 op,
void *lsmrule)
{