linux-kernel - Re: [PATCH] net/9p: Validate current->sighand in client.c

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Message-ID: <CAJ1xhMXbhVyh6Ut86cZtssbYR6q_t6tiaJFCdb-FoX1FrSaOAA@mail.gmail.com>
Date:   Sun, 21 Jun 2020 16:58:30 +0300
From:   Alexander Kapshuk <alexander.kapshuk@...il.com>
To:     Dominique Martinet <asmadeus@...ewreck.org>
Cc:     lucho@...kov.net, ericvh@...il.com, davem@...emloft.net,
        kuba@...nel.org, v9fs-developer@...ts.sourceforge.net,
        netdev@...r.kernel.org, linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] net/9p: Validate current->sighand in client.c

On Sun, Jun 21, 2020 at 4:56 PM Dominique Martinet
<asmadeus@...ewreck.org> wrote:
>
> Alexander Kapshuk wrote on Sun, Jun 21, 2020:
> > Fix rcu not being dereferenced cleanly by using the task
> > helpers (un)lock_task_sighand instead of spin_lock_irqsave and
> > spin_unlock_irqrestore to ensure current->sighand is a valid pointer as
> > suggested in the email referenced below.
>
> Ack.
> I'll take this once symbol issue is resolved ; thanks for your time.
>
> --
> Dominique

Noted.
Thanks.