netdev - Re: [PATCH net v7 1/2] net: sched: fix use-after-free in taprio

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Message-Id: 
 <172968303276.1569665.8161855259469227544.git-patchwork-notify@kernel.org>
Date: Wed, 23 Oct 2024 11:30:32 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Dmitry Antipov <dmantipov@...dex.ru>
Cc: vinicius.gomes@...el.com, jhs@...atatu.com, xiyou.wangcong@...il.com,
 jiri@...nulli.us, kuba@...nel.org, pabeni@...hat.com, netdev@...r.kernel.org,
 lvc-project@...uxtesting.org,
 syzbot+b65e0af58423fc8a73aa@...kaller.appspotmail.com
Subject: Re: [PATCH net v7 1/2] net: sched: fix use-after-free in taprio_change()

Hello:

This series was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Fri, 18 Oct 2024 08:13:38 +0300 you wrote:
> In 'taprio_change()', 'admin' pointer may become dangling due to sched
> switch / removal caused by 'advance_sched()', and critical section
> protected by 'q->current_entry_lock' is too small to prevent from such
> a scenario (which causes use-after-free detected by KASAN). Fix this
> by prefer 'rcu_replace_pointer()' over 'rcu_assign_pointer()' to update
> 'admin' immediately before an attempt to schedule freeing.
> 
> [...]

Here is the summary with links:
  - [net,v7,1/2] net: sched: fix use-after-free in taprio_change()
    https://git.kernel.org/netdev/net/c/f504465970ae
  - [net,v7,2/2] net: sched: use RCU read-side critical section in taprio_dump()
    https://git.kernel.org/netdev/net/c/b22db8b8befe

You are awesome, thank you!
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