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From: Navid Emamdoost <navid.emamdoost@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: emamd001@umn.edu, kjlu@umn.edu, smccaman@umn.edu,
	Navid Emamdoost <navid.emamdoost@gmail.com>,
	Paul Moore <paul@paul-moore.com>,
	"David S. Miller" <davem@davemloft.net>,
	netdev@vger.kernel.org, linux-security-module@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] genetlink: prevent memory leak in netlbl_unlabel_defconf
Date: Wed, 25 Sep 2019 17:10:08 -0500	[thread overview]
Message-ID: <20190925221009.15523-1-navid.emamdoost@gmail.com> (raw)

In netlbl_unlabel_defconf if netlbl_domhsh_add_default fails the
allocated entry should be released.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
---
 net/netlabel/netlabel_unlabeled.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index d2e4ab8d1cb1..c63ec480ee4e 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -1541,8 +1541,10 @@ int __init netlbl_unlabel_defconf(void)
 	entry->family = AF_UNSPEC;
 	entry->def.type = NETLBL_NLTYPE_UNLABELED;
 	ret_val = netlbl_domhsh_add_default(entry, &audit_info);
-	if (ret_val != 0)
+	if (ret_val != 0) {
+		kfree(entry);
 		return ret_val;
+	}
 
 	netlbl_unlabel_acceptflg_set(1, &audit_info);
 
-- 
2.17.1


             reply	other threads:[~2019-09-25 22:10 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-25 22:10 Navid Emamdoost [this message]
2019-09-25 23:27 ` [PATCH] genetlink: prevent memory leak in netlbl_unlabel_defconf Paul Moore
2019-09-27 13:15   ` Markus Elfring
2019-09-27 14:48     ` Paul Moore
2019-09-27 16:14       ` David Miller

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