linux-kernel - Re: [PATCH] nfc: hci: shdlc: Stop timers and work before freeing context

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Message-Id: 
 <177034680483.662298.10040199384768030642.git-patchwork-notify@kernel.org>
Date: Fri, 06 Feb 2026 03:00:04 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Votokina Victoria <Victoria.Votokina@...persky.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, horms@...nel.org, tglx@...nel.org, mingo@...nel.org,
 eric.lapuyade@...ux.intel.com, sameo@...ux.intel.com, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, lvc-project@...uxtesting.org
Subject: Re: [PATCH] nfc: hci: shdlc: Stop timers and work before freeing
 context

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Tue, 3 Feb 2026 14:31:57 +0300 you wrote:
> llc_shdlc_deinit() purges SHDLC skb queues and frees the llc_shdlc
> structure while its timers and state machine work may still be active.
> 
> Timer callbacks can schedule sm_work, and sm_work accesses SHDLC state
> and the skb queues. If teardown happens in parallel with a queued/running
> work item, it can lead to UAF and other shutdown races.
> 
> [...]

Here is the summary with links:
  - nfc: hci: shdlc: Stop timers and work before freeing context
    https://git.kernel.org/netdev/net/c/c9efde1e537b

You are awesome, thank you!
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