From: Vitaly Chikunov <vt@altlinux.org>
To: ALT Linux kernel packages development <devel-kernel@lists.altlinux.org>
Cc: naf@altlinux.org, Alexey Shabalin <shaba@basealt.ru>
Subject: Re: [d-kernel] CVE-2026-31431
Date: Wed, 6 May 2026 02:58:13 +0300
Message-ID: <afqC52iuYwk2HSLh@altlinux.org> (raw)
In-Reply-To: <afUOL6p0-fPP0CPh@altlinux.org>
On Fri, May 01, 2026 at 11:34:44PM +0300, Vitaly Chikunov wrote:
> On Fri, May 01, 2026 at 11:30:09PM +0300, Vitaly Chikunov wrote:
> > On Fri, May 01, 2026 at 09:32:01AM +0300, Alexey V. Vissarionov wrote:
> > > Good ${greeting_time}!
> > >
> > > On 2026-04-30 21:26:29 +0300, I wrote:
> > >
> > > > Сабж. Оно же "732 bytes to root", оно же https://copy.fail
> > > > В ядре с 2017 года, то есть присутствует во всех актуальных.
> > > > Методы лечения: Ядра 6.* и более свежие - обновить до новой
> > > > версии. Старые ядра - отключить CONFIG_CRYPTO_USER_API_AEAD
> > > > (в принципе, это годится и для свежих ядер).
> > >
> > > Ситуация чуть хуже. Отключаем CONFIG_CRYPTO_USER_API везде.
> > > Рекомендую сделать это вручную через menuconfig, чтобы и все
> > > сопутствующие
> > >
> > > CONFIG_CRYPTO_USER_API
> > > CONFIG_CRYPTO_USER_API_HASH
> > > CONFIG_CRYPTO_USER_API_SKCIPHER
> > > CONFIG_CRYPTO_USER_API_RNG
> > > CONFIG_CRYPTO_USER_API_RNG_CAVP
> > > CONFIG_CRYPTO_USER_API_AEAD
> > > CONFIG_CRYPTO_USER_API_ENABLE_OBSOLETE
> > >
> > > даже не попадали в конфиг.
> >
> > Давайте отключим.
> >
> > Пишут, что это используется только в iwd, bluez, cryptsetup with certain
> > options.
>
> ACLs
>
> bluez shrek aris zerg lakostis
> iwd silverducks @everybody
> cryptsetup naf shaba
А вот Andy Lutomirski пишет:
IIRC cryptsetup used to and maybe even still does require these
sockets sometimes and this would let it keep working.
Так что может cryptsetup сломается.
Если кто-то захочет протестировать, то сейчас эти опции отключены в ядре kernel-image-7.1-7.1.0-alt0.rc2
>
>
> >
> > >
> > >
> > > --
> > > Alexey V. Vissarionov
> > > gremlin ПРИ altlinux ТЧК org; +vii-cmiii-ccxxix-lxxix-xlii
> > > GPG: 0D92F19E1C0DC36E27F61A29CD17E2B43D879005 @ hkp://keys.gnupg.net
> > > _______________________________________________
> > > devel-kernel mailing list
> > > devel-kernel@lists.altlinux.org
> > > https://lists.altlinux.org/mailman/listinfo/devel-kernel
> > _______________________________________________
> > devel-kernel mailing list
> > devel-kernel@lists.altlinux.org
> > https://lists.altlinux.org/mailman/listinfo/devel-kernel
> _______________________________________________
> devel-kernel mailing list
> devel-kernel@lists.altlinux.org
> https://lists.altlinux.org/mailman/listinfo/devel-kernel
next prev parent reply other threads:[~2026-05-05 23:58 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-30 18:26 Alexey V. Vissarionov
2026-05-01 6:32 ` Alexey V. Vissarionov
2026-05-01 20:30 ` Vitaly Chikunov
2026-05-01 20:34 ` Vitaly Chikunov
2026-05-05 23:58 ` Vitaly Chikunov [this message]
2026-05-04 7:13 ` Alexey V. Vissarionov
2026-05-04 8:08 ` Oleg Solovyov
2026-05-04 8:09 ` Oleg Solovyov
2026-05-04 8:19 ` Ivan A. Melnikov
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