apparmor: Fix memory leak of rule on error exit path
Currently on the error exit path the allocated rule is not free'd
causing a memory leak. Fix this by calling aa_audit_rule_free().
Detected by CoverityScan, CID#1468966 ("Resource leaks")
Fixes: cb740f574c7b ("apparmor: modify audit rule support to support profile stacks")
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
diff --git a/security/apparmor/audit.c b/security/apparmor/audit.c
index 575f3e9..eeaddfe 100644
--- a/security/apparmor/audit.c
+++ b/security/apparmor/audit.c
@@ -200,10 +200,12 @@ int aa_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule)
/* Currently rules are treated as coming from the root ns */
rule->label = aa_label_parse(&root_ns->unconfined->label, rulestr,
GFP_KERNEL, true, false);
- if (IS_ERR(rule->label))
+ if (IS_ERR(rule->label)) {
+ aa_audit_rule_free(rule);
return PTR_ERR(rule->label);
- *vrule = rule;
+ }
+ *vrule = rule;
return 0;
}