linux-kernel - Re: "sched/rt: Fix race in push_rt_task" linux kernel patch backports

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Message-ID: <2026012855-drench-remark-d047@gregkh>
Date: Wed, 28 Jan 2026 13:23:14 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Jari Ruusu <jariruusu@...tonmail.com>
Cc: Sasha Levin <sashal@...nel.org>, Jon Kohler <jon@...anix.com>,
	Rahul Chunduru <rahul.chunduru@...anix.com>,
	Harshit Agarwal <harshit@...anix.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: "sched/rt: Fix race in push_rt_task" linux kernel patch backports

On Wed, Jan 28, 2026 at 12:02:21PM +0000, Jari Ruusu wrote:
> Greg Kroah-Hartman <gregkh@...uxfoundation.org> wrote:
> > > Important upstream "sched/rt: Fix race in push_rt_task", commit
> > > 690e47d1403e90b7f2366f03b52ed3304194c793, is present in 6.18.y
> > > and 6.12.y kernel branches, but seems to be missing from older
> > > kernel branches.
> > > 
> > > Any chance backporting that race fix to older kernel branches?
> > 
> > It does not apply cleanly to older kernel branches. So if it is needed
> > there, please provide a working backport and we will be glad to consider
> > it.
> 
> 6.12.y backport applies cleanly and works OK for 6.6.y and 6.1.y branches.
> I did not test any older branches.
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.12.y&id=debfbc047196df1f6bfd52f2d028c21dce67f0de

Can you please send this with your signed-off-by as you have tested it?

thanks,

greg k-h