netdev - Re: [PATCH 5.4 097/122] xfrm: policy: Read seqcount outside of rcu-read side in xfrm_policy_lookup

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Date:   Thu, 15 Jul 2021 20:54:47 +0200
From:   Florian Westphal <fw@...len.de>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Varad Gautam <varad.gautam@...e.com>,
        linux-rt-users <linux-rt-users@...r.kernel.org>,
        netdev@...r.kernel.org,
        Steffen Klassert <steffen.klassert@...unet.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Florian Westphal <fw@...len.de>,
        "Ahmed S. Darwish" <a.darwish@...utronix.de>
Subject: Re: [PATCH 5.4 097/122] xfrm: policy: Read seqcount outside of
 rcu-read side in xfrm_policy_lookup_bytype

Greg Kroah-Hartman <gregkh@...uxfoundation.org> wrote:
> From: Varad Gautam <varad.gautam@...e.com>
> 
> commit d7b0408934c749f546b01f2b33d07421a49b6f3e upstream.

This patch has been reverted in the ipsec tree, the problem was then
addressed via 2580d3f40022642452dd8422bfb8c22e54cf84bb
("xfrm: Fix RCU vs hash_resize_mutex lock inversion").

AFAICS its not in mainline yet.