From: Jakub Kicinski <kuba@kernel.org>
To: Krystian Kaniewski <krystianmkaniewski@gmail.com>
Cc: netdev@vger.kernel.org, Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>,
syzkaller-bugs@googlegroups.com, dskr99@gmail.com,
Kees Cook <kees@kernel.org>,
linux-kernel@vger.kernel.org, syzbot@lists.linux.dev,
syzbot+5fe14f2ff4ccbace9a26@syzkaller.appspotmail.com
Subject: Re: [PATCH net v2] ipvlan: keep lower device alive until private destruction
Date: Thu, 6 Aug 2026 08:38:34 -0700 [thread overview]
Message-ID: <20260806083834.28db4cde@kernel.org> (raw)
In-Reply-To: <20260803121140.261329-1-krystianmkaniewski@gmail.com>
On Mon, 3 Aug 2026 14:11:39 +0200 Krystian Kaniewski wrote:
> Specifically, RXE acts as an asynchronous owner in this scenario. RXE
> queues RDMA device removal on NETDEV_UNREGISTER, meaning it can retain a
> reference to the ipvlan netdev after ndo_uninit has completed.
The netdev reference only guarantees that struct net_device does not
go away. Caller must check that the device is still alive if it is
trying to operate on it without a guarantee that it's still live.
next prev parent reply other threads:[~2026-08-06 15:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-03 12:11 [PATCH net v2] ipvlan: keep lower device alive until private destruction Krystian Kaniewski
2026-08-03 16:57 ` [syzbot ci] " syzbot ci
2026-08-06 15:38 ` Jakub Kicinski [this message]
2026-08-07 11:54 ` [PATCH net v2] " Krystian Kaniewski
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