From: patchwork-bot+netdevbpf@kernel.org
To: Kiran Kella <kiran.kella@broadcom.com>
Cc: daniel.zahka@gmail.com, kuba@kernel.org,
willemdebruijn.kernel@gmail.com, davem@davemloft.net,
edumazet@google.com, pabeni@redhat.com, horms@kernel.org,
weibunny@fb.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
jayakrishnan.udayavarma@broadcom.com, ajit.khaparde@broadcom.com,
akhilesh.samineni@broadcom.com, vikas.gupta@broadcom.com,
bhargava.marreddy@broadcom.com
Subject: Re: [PATCH net v4] psp: fix NULL genl_sock deref race with concurrent netns teardown
Date: Thu, 30 Jul 2026 00:00:23 +0000 [thread overview]
Message-ID: <178536962339.3288516.4696064079043880319.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260727101628.502042-1-kiran.kella@broadcom.com>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Mon, 27 Jul 2026 03:16:28 -0700 you wrote:
> The race occurs between network namespace removal and PSP device
> unregistration. When a netns is deleted while a PSP device associated
> with that netns is concurrently being removed, psp_dev_unregister()
> triggers psp_nl_notify_dev() to send a device change notification.
> Concurrently, cleanup_net() running in the netns workqueue calls
> genl_pernet_exit(), which sets net->genl_sock to NULL. If
> genl_pernet_exit() wins the race, two sites in psp_nl_multicast_per_ns()
> then dereference the NULL socket and crash:
>
> [...]
Here is the summary with links:
- [net,v4] psp: fix NULL genl_sock deref race with concurrent netns teardown
https://git.kernel.org/netdev/net/c/fc9c7ca5fcbf
You are awesome, thank you!
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prev parent reply other threads:[~2026-07-30 0:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-27 10:16 [PATCH net v4] psp: fix NULL genl_sock deref race with concurrent netns teardown Kiran Kella
2026-07-30 0:00 ` patchwork-bot+netdevbpf [this message]
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