[apparmor] [PATCH] apparmor: aa_label_alloc use aa_label_free on alloc failure

[Zygmunt Krynicki]

aa_label_alloc() allocates a secid before allocating or taking the label
proxy. If the later proxy step fails, the error path only freed the label
memory, leaking any resources initialized by aa_label_init().

Use aa_label_free() on the failure path so partially initialized labels
release their secid and other label resources before the backing memory is
freed.

Signed-off-by: Zygmunt Krynicki <me at zygoon.pl>
---
 security/apparmor/label.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/apparmor/label.c b/security/apparmor/label.c
index 3a721fdf18339..c6a96355e8d9e 100644
--- a/security/apparmor/label.c
+++ b/security/apparmor/label.c
@@ -458,7 +458,7 @@ struct aa_label *aa_label_alloc(int size, struct aa_proxy *proxy, gfp_t gfp)
 	return new;
 
 fail:
-	kfree(new);
+	aa_label_free(new);
 
 	return NULL;
 }
-- 
2.53.0