netdev - Re: [PATCH net v2] net: kcm: Fix race condition in kcm

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Message-Id: 
 <175513501124.3846704.13838201534984026862.git-patchwork-notify@kernel.org>
Date: Thu, 14 Aug 2025 01:30:11 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Sven Stegemann <sven@...gemann.de>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, horms@...nel.org, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org,
 syzbot+e62c9db591c30e174662@...kaller.appspotmail.com,
 syzbot+d199b52665b6c3069b94@...kaller.appspotmail.com,
 syzbot+be6b1fdfeae512726b4e@...kaller.appspotmail.com
Subject: Re: [PATCH net v2] net: kcm: Fix race condition in kcm_unattach()

Hello:

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

On Tue, 12 Aug 2025 21:18:03 +0200 you wrote:
> syzbot found a race condition when kcm_unattach(psock)
> and kcm_release(kcm) are executed at the same time.
> 
> kcm_unattach() is missing a check of the flag
> kcm->tx_stopped before calling queue_work().
> 
> If the kcm has a reserved psock, kcm_unattach() might get executed
> between cancel_work_sync() and unreserve_psock() in kcm_release(),
> requeuing kcm->tx_work right before kcm gets freed in kcm_done().
> 
> [...]

Here is the summary with links:
  - [net,v2] net: kcm: Fix race condition in kcm_unattach()
    https://git.kernel.org/netdev/net/c/52565a935213

You are awesome, thank you!
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