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Message-ID: <CANn89iJUJpmeo+SHYbwitQ3A97Sm86P7Yi4TGdkquedxKiO_wQ@mail.gmail.com>
Date: Mon, 16 Jan 2023 11:03:02 +0100
From: Eric Dumazet <edumazet@...gle.com>
To: Vinicius Costa Gomes <vinicius.gomes@...el.com>
Cc: "David S . Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
eric.dumazet@...il.com, syzbot <syzkaller@...glegroups.com>,
Alexander Potapenko <glider@...gle.com>
Subject: Re: [PATCH net] net/sched: sch_taprio: fix possible use-after-free
On Sat, Jan 14, 2023 at 12:41 AM Vinicius Costa Gomes
<vinicius.gomes@...el.com> wrote:
>
> Hi,
>
> From the commit message, I got the impression that only the one
> qdisc_synchronize() in taprio_destroy() would be needed.
>
This could be, but then why having hrtimer_cancel(&q->advance_timer);
in taprio_reset(), since it is already in taprio_destroy() ?
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