From: Florian Westphal <fw@strlen.de>
Subject: Re: SLAB_TYPESAFE_BY_RCU without constructors (was Re: [PATCH v4
 13/17] khwasan: add hooks implementation)
Date: Wed, 1 Aug 2018 15:46:28 +0200
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Cc: Florian Westphal <fw@strlen.de>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Christoph Lameter <cl@linux.com>,
        Andrey Ryabinin <aryabinin@virtuozzo.com>,
        Theodore Ts'o <tytso@mit.edu>, Jan Kara <jack@suse.com>,
        linux-ext4@vger.kernel.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Pablo Neira Ayuso <pablo@netfilter.org>,
        Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>,
        David Miller <davem@davemloft.net>,
        NetFilter <netfilter-devel@vger.kernel.org>,
        coreteam@netfilter.org,
        Network Development <netdev@vger.kernel.org>,
        Gerrit Renker <gerrit@erg.abdn.ac.uk>, dccp@vger.kernel.org,
        Jani Nikula <jani.nikula@linux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
        Dave Airlie <airlied@linux.ie>,
To: Dmitry Vyukov <dvyukov@google.com>
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Dmitry Vyukov <dvyukov@google.com> wrote:
> If that scenario is possible that a fix would be to make

Looks possible.

> __nf_conntrack_find_get ever return NULL iff it got NULL from
> ____nf_conntrack_find (not if any of the checks has failed).

I don't see why we need to restart on nf_ct_is_dying(), but other
than that this seems ok.