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From: Greg KH <gregkh@linuxfoundation.org>
To: Haakon Bugge <haakon.bugge@oracle.com>
Cc: Sasha Levin <sashal@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Linux-Net <netdev@vger.kernel.org>,
	"stable@vger.kernel.org" <stable@vger.kernel.org>,
	Doug Ledford <dledford@redhat.com>,
	Jason Gunthorpe <jgg@nvidia.com>,
	OFED mailing list <linux-rdma@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Guillaume Nault <gnault@redhat.com>
Subject: Re: Please add 2dce224f469f ("netns: protect netns ID lookups with RCU") to LTS
Date: Thu, 9 Sep 2021 15:30:39 +0200	[thread overview]
Message-ID: <YToMf8zUVNVDCAKX@kroah.com> (raw)
In-Reply-To: <7F058034-8A2B-4C19-A39E-12B0DB117328@oracle.com>

On Thu, Sep 09, 2021 at 01:10:05PM +0000, Haakon Bugge wrote:
> Hi Greg & Sasha,
> 
> 
> tl;dr: Please add 2dce224f469f ("netns: protect netns ID lookups with
> RCU") to the stable releases from v5.4 and older. It fixes a
> spin_unlock_bh() in peernet2id() called with IRQs off. I think this
> neat side-effect of commit 2dce224f469f was quite un-intentional,
> hence no Fixes: tag or CC: stable.

Please provide a working backport for all of the relevant kernel
verisons, as it does not apply cleanly on it's own.

thanks,

greg k-h

  reply	other threads:[~2021-09-09 13:32 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-09 13:10 Please add 2dce224f469f ("netns: protect netns ID lookups with RCU") to LTS Haakon Bugge
2021-09-09 13:30 ` Greg KH [this message]
2021-09-10 14:22   ` Haakon Bugge
2021-09-13  8:42     ` Greg KH
2021-09-14  8:58       ` Haakon Bugge

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