From: patchwork-bot+netdevbpf@kernel.org
To: Breno Leitao <leitao@debian.org>
Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com, horms@kernel.org, amwang@redhat.com,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
vlad.wing@gmail.com, asantostc@gmail.com, paulmck@kernel.org,
kernel-team@meta.com, stable@vger.kernel.org,
pavan.chebbi@broadcom.com
Subject: Re: [PATCH net v2] netpoll: fix a use-after-free on shutdown path
Date: Sat, 27 Jun 2026 22:50:31 +0000 [thread overview]
Message-ID: <178260063154.1451849.16906699436504289458.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260625-netpoll_rcu_fix-v2-1-0748ffac1e98@debian.org>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Thu, 25 Jun 2026 05:03:18 -0700 you wrote:
> There is a use-after-free error on netpoll, which is clearly detected by
> KASAN.
>
> BUG: KASAN: slab-use-after-free in _raw_spin_lock_irqsave+0x3b/0x80
> Read of size 1 at addr ... by task kworker/9:1
> Workqueue: events queue_process
> Call Trace:
> skb_dequeue+0x1e/0xb0
> queue_process+0x2c/0x600
> process_scheduled_works+0x4b6/0x850
> worker_thread+0x414/0x5a0
> Allocated by task 242:
> __netpoll_setup+0x201/0x4a0
> netpoll_setup+0x249/0x550
> enabled_store+0x32f/0x380
> Freed by task 0:
> kfree+0x1b7/0x540
> rcu_core+0x3f8/0x7a0
>
> [...]
Here is the summary with links:
- [net,v2] netpoll: fix a use-after-free on shutdown path
https://git.kernel.org/netdev/net/c/45f1458a8501
You are awesome, thank you!
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prev parent reply other threads:[~2026-06-27 22:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-25 12:03 [PATCH net v2] netpoll: fix a use-after-free on shutdown path Breno Leitao
2026-06-27 22:50 ` patchwork-bot+netdevbpf [this message]
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