netdev - Re: [PATCH net v2] ipv6: fix a BUG in rt6_get_pcpu_route() under PREEMPT

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]

Message-ID: <7f7c32e627e7d0fd1be12865f253a67cd3af29a8@linux.dev>
Date: Tue, 23 Dec 2025 02:38:05 +0000
From: "Jiayuan Chen" <jiayuan.chen@...ux.dev>
To: "Steven Rostedt" <rostedt@...dmis.org>, "Eric Dumazet"
 <edumazet@...gle.com>
Cc: netdev@...r.kernel.org,
 syzbot+9b35e9bc0951140d13e6@...kaller.appspotmail.com, "David S. Miller"
 <davem@...emloft.net>, "David Ahern" <dsahern@...nel.org>, "Jakub
 Kicinski" <kuba@...nel.org>, "Paolo Abeni" <pabeni@...hat.com>, "Simon
 Horman" <horms@...nel.org>, "Sebastian Andrzej Siewior"
 <bigeasy@...utronix.de>, "Clark Williams" <clrkwllms@...nel.org>,
 linux-kernel@...r.kernel.org, linux-rt-devel@...ts.linux.dev
Subject: Re: [PATCH net v2] ipv6: fix a BUG in rt6_get_pcpu_route() under
 PREEMPT_RT

December 23, 2025 at 01:26, "Steven Rostedt" <rostedt@...dmis.org mailto:rostedt@...dmis.org?to=%22Steven%20Rostedt%22%20%3Crostedt%40goodmis.org%3E > wrote:

> 
> On Mon, 22 Dec 2025 12:16:39 -0500
> Steven Rostedt <rostedt@...dmis.org> wrote:
> 
> > 
> > On Mon, 22 Dec 2025 09:50:58 +0100
> >  Eric Dumazet <edumazet@...gle.com> wrote:
> >  
> >  > Link: https://syzkaller.appspot.com/bug?extid=9b35e9bc0951140d13e6
> >  > Fixes: 951f788a80ff ("ipv6: fix a BUG in rt6_get_pcpu_route()") 
> >  
> >  I would rather find when PREEMPT_RT was added/enabled, there is no
> >  point blaming such an old commit
> >  which was correct at the time, and forcing pointless backports to old
> >  linux kernels. 
> >  
> >  Ack!
> > 
> Fixes: d2d6422f8bd1 ("x86: Allow to enable PREEMPT_RT.")
> 
> That was the first commit to enable PREEMPT_RT on any architecture (just
> happened to be x86).
> 
> -- Steve
>

Thanks Steve, it helped a lot !