linux-kernel - Re: KASAN vs RCU vs RT

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Mon, 28 Sep 2020 09:33:23 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Dmitry Vyukov <dvyukov@...gle.com>
Cc:     kasan-dev <kasan-dev@...glegroups.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: KASAN vs RCU vs RT

On Sat, 26 Sep 2020 08:57:32 +0200 Dmitry Vyukov wrote:
> On Sat, Sep 26, 2020 at 3:43 AM Jakub Kicinski <kuba@...nel.org> wrote:
> >
> > Hi!
> >
> > I couldn't find this being reported in a quick search, so let me ask.
> >
> > With 5.9 I'm seeing a lot (well, once a boot) splats like the one below.
> >
> > Is there a fix?  
> 
> Hi Jakub,
> 
> FWIW this is the first time I see this BUG. I don't remember it was
> mentioned on kasan-dev before.
> 
> The commit that added this BUG was added in March 2020, so is not new...

Talking to Paul McKenney - it appears to be a known and hard to fix
issue inside RCU, KASAN is not to blame. Sorry for the noise :)