netdev - Re: [PATCH net] sctp: check asoc strreset_chunk in sctp_generate_reconf

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Date:   Thu, 21 Apr 2022 11:04:42 -0400
From:   Xin Long <lucien.xin@...il.com>
To:     David Miller <davem@...emloft.net>
Cc:     network dev <netdev@...r.kernel.org>,
        "linux-sctp @ vger . kernel . org" <linux-sctp@...r.kernel.org>,
        Jakub Kicinski <kuba@...nel.org>,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Neil Horman <nhorman@...driver.com>
Subject: Re: [PATCH net] sctp: check asoc strreset_chunk in sctp_generate_reconf_event

On Thu, Apr 21, 2022 at 6:18 AM David Miller <davem@...emloft.net> wrote:
>
> From: Xin Long <lucien.xin@...il.com>
> Date: Wed, 20 Apr 2022 16:52:41 -0400
>
> > diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
> > index b3815b568e8e..463c4a58d2c3 100644
> > --- a/net/sctp/sm_sideeffect.c
> > +++ b/net/sctp/sm_sideeffect.c
> > @@ -458,6 +458,10 @@ void sctp_generate_reconf_event(struct timer_list *t)
> >               goto out_unlock;
> >       }
> >
> > +     /* This happens when the response arrives after the timer is triggered. */
> > +     if (!asoc->strreset_chunk)
> > +             goto out_unlock;
> > +
> This will return 0 because that is error's value right there, intentional?
intentional, this won't be treated as an error.