From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Mon, 29 Mar 2010 23:04:00 +0000 (+0100)
Subject: CRED: Fix memory leak in error handling
X-Git-Tag: Ubuntu-5.2.0-15.16~25508^2
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=570b8fb505896e007fd3bb07573ba6640e51851d;p=mirror_ubuntu-eoan-kernel.git

CRED: Fix memory leak in error handling

Fix a memory leak on an OOM condition in prepare_usermodehelper_creds().

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
---

diff --git a/kernel/cred.c b/kernel/cred.c
index 1ed8ca18790c..1b1129d0cce8 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -364,7 +364,7 @@ struct cred *prepare_usermodehelper_creds(void)
 
 	new = kmem_cache_alloc(cred_jar, GFP_ATOMIC);
 	if (!new)
-		return NULL;
+		goto free_tgcred;
 
 	kdebug("prepare_usermodehelper_creds() alloc %p", new);
 
@@ -397,6 +397,10 @@ struct cred *prepare_usermodehelper_creds(void)
 
 error:
 	put_cred(new);
+free_tgcred:
+#ifdef CONFIG_KEYS
+	kfree(tgcred);
+#endif
 	return NULL;
 }