Development discussion of WireGuard
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From: Phillip McMahon <phillip.mcmahon@gmail.com>
To: Eric Light <eric@ericlight.com>
Cc: Corey Costello <ccostello@morsecom.com>,
	 WireGuard mailing list <wireguard@lists.zx2c4.com>
Subject: Re: UBSAN: object-size-mismatch in wg_xmit
Date: Fri, 8 Jan 2021 02:02:40 +0100	[thread overview]
Message-ID: <CABtXGiB93kHQGC4Tg+Np=sJSo-HDb99wGWbsm25pHU88PwggCg@mail.gmail.com> (raw)
In-Reply-To: <0029bece-0f7e-4467-948d-b48af50e5bca@www.fastmail.com>

I went and did it for you. You should have a confirmation email to
respond to. Check your spam.

On Fri, 8 Jan 2021 at 01:49, Eric Light <eric@ericlight.com> wrote:
>
> Corey - have you tried unsubscribing at the unsubscribe page?  https://lists.zx2c4.com/mailman/options/wireguard
>
> Hope this helps,
>
> E
>
> --------------------------------------------
> Q: Why is this email five sentences or less?
> A: http://five.sentenc.es
>
> On Fri, 8 Jan 2021, at 13:34, Corey Costello wrote:
> > Get me off this fucking list ffs.
> >
> >
> >
> > > On Jan 7, 2021, at 2:06 PM, Jeffrey Walton <noloader@gmail.com> wrote:
> > >
> > > On Thu, Jan 7, 2021 at 2:03 PM Jason A. Donenfeld <Jason@zx2c4.com> wrote:
> > >>
> > >> On Thu, Jan 7, 2021 at 1:22 PM Dmitry Vyukov <dvyukov@google.com> wrote:
> > >>>
> > >>> On Mon, Dec 21, 2020 at 12:23 PM Jason A. Donenfeld <Jason@zx2c4.com> wrote:
> > >>>>
> > >>>> ...
> > >>>
> > >>> These UBSAN checks were just enabled recently.
> > >>> It's indeed super easy to trigger: 133083 VMs were crashed on this already:
> > >>> https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fsyzkaller.appspot.com%2fbug%3fextid%3d8f90d005ab2d22342b6d&c=E,1,RVpgZsRUCGs2jKlumiMAMnpeOF4QdiW5h8GDIsBJPz-orFNwvwCXnceC9n5Bhr1h-G2EsU0tlC7N4QUpHuF6tIMI7tTnBoRjAo5tT-Bk9-Fhe8CppuOL4mqdkA,,&typo=1
> > >>> So it's one of the top crashers by now.
> > >>
> > >> Ahh, makes sense. So it is easily reproducible after all.
> > >>
> > >> You're still of the opinion that it's a false positive, right? I
> > >> shouldn't spend more cycles on this?
> > >
> > > You might consider making a test build with -fno-lto in case LTO is
> > > mucking things up.
> > >
> > > Google Posts Patches So The Linux Kernel Can Be LTO-Optimized By
> > > Clang, https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.phoronix.com%2fscan.php%3fpage%3dnews_item%26px%3dLinux-Kernel-Clang-LTO-Patches&c=E,1,7u3-jWadklYo8ai_XrPNvjnu46LLAyg0hqsGIaMPaoQ5UxtcNM84jrHUgSg4VciXKk9XVpwgyBwD85LbbW5_j195jSH6RrAej45I1kr_XfQ,&typo=1
> > >
> > > Jeff
> >
> >



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  parent reply	other threads:[~2021-01-08  1:03 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-20 16:54 syzbot
2020-12-20 21:11 ` Jason A. Donenfeld
2020-12-21  9:14   ` Dmitry Vyukov
2020-12-21 11:23     ` Jason A. Donenfeld
2021-01-07 12:22       ` Dmitry Vyukov
2021-01-07 19:00         ` Jason A. Donenfeld
2021-01-07 19:06           ` Jeffrey Walton
2021-01-08  0:34             ` Corey Costello
2021-01-08  0:42               ` Eric Light
2021-01-08  0:44                 ` Corey Costello
2021-01-08  0:50                   ` Eric Light
2021-01-08  1:02                 ` Phillip McMahon [this message]
2021-01-08  9:33             ` Dmitry Vyukov
2021-01-08 20:54               ` Nathan Chancellor
2021-01-08  9:30           ` Dmitry Vyukov
     [not found]             ` <CAGXu5j+jzmkiU_AWoTVF6e263iYSSJYUHB=Kdqh-MCfEO-aNSg@mail.gmail.com>
2021-01-09  9:46               ` Dmitry Vyukov
2021-01-09 10:49                 ` Matthias Urlichs
2021-01-11 17:17                 ` Dmitry Vyukov
2021-01-11 17:35                   ` Jeffrey Walton
2021-01-11 17:58                     ` Dmitry Vyukov
2021-01-11 18:14                       ` Jeffrey Walton
2021-01-12  9:54                         ` Dmitry Vyukov
2021-01-07 12:53       ` Jeffrey Walton
2021-01-07 17:01       ` Julian Wiedmann
2021-01-07 18:58         ` Jason A. Donenfeld

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