netdev - Re: [PATCH net] net/sched: sch_taprio: do not schedule in taprio

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Message-Id: <167461441714.2895.3296174945529154857.git-patchwork-notify@kernel.org>
Date:   Wed, 25 Jan 2023 02:40:17 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Eric Dumazet <edumazet@...gle.com>
Cc:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        netdev@...r.kernel.org, eric.dumazet@...il.com,
        syzkaller@...glegroups.com, vinicius.gomes@...el.com
Subject: Re: [PATCH net] net/sched: sch_taprio: do not schedule in taprio_reset()

Hello:

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

On Mon, 23 Jan 2023 08:45:52 +0000 you wrote:
> As reported by syzbot and hinted by Vinicius, I should not have added
> a qdisc_synchronize() call in taprio_reset()
> 
> taprio_reset() can be called with qdisc spinlock held (and BH disabled)
> as shown in included syzbot report [1].
> 
> Only taprio_destroy() needed this synchronization, as explained
> in the blamed commit changelog.
> 
> [...]

Here is the summary with links:
  - [net] net/sched: sch_taprio: do not schedule in taprio_reset()
    https://git.kernel.org/netdev/net/c/ea4fdbaa2f77

You are awesome, thank you!
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