From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Hangyu Hua <hbh25y@gmail.com>, Jakub Kicinski <kuba@kernel.org>,
Sasha Levin <sashal@kernel.org>,
courmisch@gmail.com, davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.14 4/9] phonet: refcount leak in pep_sock_accep
Date: Mon, 20 Dec 2021 21:01:18 -0500 [thread overview]
Message-ID: <20211221020123.117380-4-sashal@kernel.org> (raw)
In-Reply-To: <20211221020123.117380-1-sashal@kernel.org>
From: Hangyu Hua <hbh25y@gmail.com>
[ Upstream commit bcd0f93353326954817a4f9fa55ec57fb38acbb0 ]
sock_hold(sk) is invoked in pep_sock_accept(), but __sock_put(sk) is not
invoked in subsequent failure branches(pep_accept_conn() != 0).
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Link: https://lore.kernel.org/r/20211209082839.33985-1-hbh25y@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/phonet/pep.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index bffcef58ebf5c..f1bdd4f1b1b43 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -881,6 +881,7 @@ static struct sock *pep_sock_accept(struct sock *sk, int flags, int *errp,
err = pep_accept_conn(newsk, skb);
if (err) {
+ __sock_put(sk);
sock_put(newsk);
newsk = NULL;
goto drop;
--
2.34.1
next prev parent reply other threads:[~2021-12-21 2:04 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20211221020123.117380-1-sashal@kernel.org>
2021-12-21 2:01 ` [PATCH AUTOSEL 4.14 2/9] mac80211: set up the fwd_skb->dev for mesh forwarding Sasha Levin
2021-12-21 2:01 ` [PATCH AUTOSEL 4.14 3/9] mac80211: fix a memory leak where sta_info is not freed Sasha Levin
2021-12-21 2:01 ` Sasha Levin [this message]
2021-12-21 2:01 ` [PATCH AUTOSEL 4.14 5/9] net: bcmgenet: Fix NULL vs IS_ERR() checking Sasha Levin
2021-12-21 2:01 ` [PATCH AUTOSEL 4.14 6/9] mac80211: Fix the size used for building probe request Sasha Levin
2021-12-21 2:01 ` [PATCH AUTOSEL 4.14 8/9] net: usb: lan78xx: add Allied Telesis AT29M2-AF Sasha Levin
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