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From: Michael Bykov <m.bykov@gmail.com>
To: ALT Linux Sisyphus discussions <sisyphus@lists.altlinux.org>
Subject: Re: [sisyphus] electron v 5.0 and user namespaces feature
Date: Tue, 22 Oct 2019 12:23:26 +0300
Message-ID: <CAN5SjACc3BFLP-6EaoA1rFBJ6w+9E71ndY=VciBmBGtkUdnwHw@mail.gmail.com> (raw)
In-Reply-To: <20191021225601.GA632442@portlab>

вт, 22 окт. 2019 г. в 01:56, Vladimir D. Seleznev <vseleznv@altlinux.org>:
>
> On Tue, Oct 22, 2019 at 01:30:36AM +0300, Michael Bykov wrote:
> > Салют,
> >
> > в electron v.5.0 добавили запуск renreder-процесса в sandboxe, для
> > безобасности, чтобы было не хуже, чем в вебе.
> >
> > Но при старте возникает ошибка:
> >
> > $ npm start
> >
> > [27373:1022/003935.785013:FATAL:setuid_sandbox_host.cc(157)] The SUID
> > sandbox helper binary was found, but is not configured correctly.
> > Rather than run without sandboxing I'm aborting now. You need to make
> > sure that /home/michael/tmp/sindresorhus/node_modules/electron/dist/chrome-sandbox
> > is owned by root and has mode 4755.
> >
> > Отлично, говорят, лечится
> >
> > $ cd node_modules/electron/dist
> > $ sudo chown root chrome-sandbox
> > $ sudo chmod 4755 chrome-sandbox
> >
> > Тут у всех Линуксов все должно работать, но у нас (и в Arch) - опять ошибка
> > $ npm start
> >
> > The setuid sandbox is not running as root. Common causes:
> >   * An unprivileged process using ptrace on it, like a debugger.
> >   * A parent process set prctl(PR_SET_NO_NEW_PRIVS, ...)
> > Failed to move to new namespace: PID namespaces supported, Network
> > namespace supported, but failed: errno = Operation not permitted
> >
> > Отлично, говорят лечится
> >
> > https://github.com/electron/electron/issues/17972:
> >
> > $ sudo sysctl kernel.unprivileged_userns_clone=1
> >
> > или https://github.com/jessfraz/dockerfiles/issues/65#issuecomment-266532289:
> >
> > $ echo 'kernel.unprivileged_userns_clone=1' > /etc/sysctl.d/00-local-userns.conf
> > $ service procps restart
> >
> > Но у нас такие штуки не проходят, естественно.
> > sysctl: cannot stat /proc/sys/kernel/unprivileged_userns_clone: No
> > such file or directory
> >
> > И как быть?
> >
> > Вот что они пишут:
> > ------------
> > Here's an article I found describing the background of why it's not
> > enabled by default: Controlling access to user namespaces and here's
> > how to enable it (from Enable user namespaces in Debian kernel):
> > https://lwn.net/Articles/673597/
> > http://superuser.com/questions/1094597/enable-user-namespaces-in-debian-kernel
> > -------------
> >
> > У меня p8 + Сизиф:
> >
> > $ uname -a
> >                                 (git)-[master]
> > Linux asus 4.9.133-std-def-alt0.M80P.1 #1 SMP Mon Oct 15 16:46:38 UTC
> > 2018 x86_64 GNU/Linux
> >
> > Может быть, нужен какой-то более свежий кернел? Может, в p9 это решено уже?
> >
> > Где про эти юзер-неймспейсы у нас в Альте прочитать-узнать?
>
> sysctl kernel.userns_restrict=0


Владимир, отлично, спасибо, все работает!






> --
>    С уважением,
>    Владимир Селезнев
> _______________________________________________
> Sisyphus mailing list
> Sisyphus@lists.altlinux.org
> https://lists.altlinux.org/mailman/listinfo/sisyphus



-- 
М.

http://diglossa.org

  reply	other threads:[~2019-10-22  9:23 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-21 22:30 Michael Bykov
2019-10-21 22:56 ` Vladimir D. Seleznev
2019-10-22  9:23   ` Michael Bykov [this message]
2019-10-23 22:06 ` Ivan Zakharyaschev

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