From: Kuniyuki Iwashima <kuniyu@amazon.com>
To: <bastien.curutchet@bootlin.com>
Cc: <alexis.lothore@bootlin.com>, <davem@davemloft.net>,
<edumazet@google.com>, <horms@kernel.org>, <kuba@kernel.org>,
<kuniyu@amazon.com>, <linux-kernel@vger.kernel.org>,
<netdev@vger.kernel.org>, <pabeni@redhat.com>,
<razor@blackwall.org>, <stable@vger.kernel.org>,
<thomas.petazzoni@bootlin.com>
Subject: Re: [PATCH net 2/2] rtnetlink: Release nets when leaving rtnl_setlink()
Date: Wed, 12 Feb 2025 17:31:17 +0900 [thread overview]
Message-ID: <20250212083117.32671-1-kuniyu@amazon.com> (raw)
In-Reply-To: <20250212-rtnetlink_leak-v1-2-27bce9a3ac9a@bootlin.com>
From: "Bastien Curutchet (eBPF Foundation)" <bastien.curutchet@bootlin.com>
Date: Wed, 12 Feb 2025 09:23:48 +0100
> rtnl_setlink() uses the rtnl_nets_* helpers but never calls the
> rtnl_nets_destroy(). It leads to small memory leaks.
>
> Call rtnl_nets_destroy() before exiting to properly decrement the nets'
> reference counters.
>
> Fixes: 636af13f213b ("rtnetlink: Register rtnl_dellink() and rtnl_setlink() with RTNL_FLAG_DOIT_PERNET_WIP.")
> Cc: stable@vger.kernel.org
> Signed-off-by: Bastien Curutchet (eBPF Foundation) <bastien.curutchet@bootlin.com>
It's fixed in 1438f5d07b9a ("rtnetlink: fix netns leak with
rtnl_setlink()").
Thanks!
next prev parent reply other threads:[~2025-02-12 8:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-12 8:23 [PATCH net 0/2] rtnetlink: Fix small memory leaks Bastien Curutchet (eBPF Foundation)
2025-02-12 8:23 ` [PATCH net 1/2] rtnetlink: Fix rtnl_net_cmp_locks() when DEBUG is off Bastien Curutchet (eBPF Foundation)
2025-02-12 8:45 ` Kuniyuki Iwashima
2025-02-12 9:07 ` Bastien Curutchet
2025-02-12 8:23 ` [PATCH net 2/2] rtnetlink: Release nets when leaving rtnl_setlink() Bastien Curutchet (eBPF Foundation)
2025-02-12 8:31 ` Kuniyuki Iwashima [this message]
2025-02-12 9:05 ` Bastien Curutchet
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