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From: Paolo Abeni <pabeni@redhat.com>
To: Eric Dumazet <edumazet@google.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
	"David S . Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>, netdev <netdev@vger.kernel.org>,
	MPTCP Upstream <mptcp@lists.linux.dev>
Subject: Re: [PATCH net-next 6/6] ipv4/tcp: do not use per netns ctl sockets
Date: Wed, 26 Jan 2022 17:35:06 +0100	[thread overview]
Message-ID: <3ecef3c4c1d158fc1c5812918e1710bce57c4812.camel@redhat.com> (raw)
In-Reply-To: <CANn89iLCdpgh9vWd_A70mPqkRgLTk9aqNY=zV2ibtVus9YLxeA@mail.gmail.com>

On Wed, 2022-01-26 at 08:24 -0800, Eric Dumazet wrote:
> I was working a fix. syzbot found the issue yesterday before I went to bed ;)

I know that is not a nice way to get some rest :(

> (And this is not related to MPTCP)
> 
> My plan is to make struct inet_timewait_death_row not a sub-strutcure
> of struct netns_ipv4
> 
> (the atomic_t tw_count becomes a refcount_t as a bonus)

Sounds good. We can test the patch, if that helps (e.g. if syzbot lacks
a repro or the repro is not very reliable)

Thanks!

Paolo


  reply	other threads:[~2022-01-26 16:35 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-24 20:24 [PATCH net-next 0/6] netns: speedup netns dismantles Eric Dumazet
2022-01-24 20:24 ` [PATCH net-next 1/6] tcp/dccp: add tw->tw_bslot Eric Dumazet
2022-01-24 20:24 ` [PATCH net-next 2/6] tcp/dccp: no longer use twsk_net(tw) from tw_timer_handler() Eric Dumazet
2022-01-24 20:24 ` [PATCH net-next 3/6] tcp/dccp: get rid of inet_twsk_purge() Eric Dumazet
2022-02-07  3:02   ` [tcp/dccp] f6408a8641: BUG:KASAN:use-after-free_in_inet_twsk_kill kernel test robot
2022-02-07  3:02     ` kernel test robot
2022-02-07  3:30     ` Eric Dumazet
2022-02-07  3:30       ` Eric Dumazet
2022-01-24 20:24 ` [PATCH net-next 4/6] ipv4: do not use per netns icmp sockets Eric Dumazet
2022-01-24 20:24 ` [PATCH net-next 5/6] ipv6: " Eric Dumazet
2022-01-24 20:24 ` [PATCH net-next 6/6] ipv4/tcp: do not use per netns ctl sockets Eric Dumazet
2022-01-26 16:14   ` Paolo Abeni
2022-01-26 16:24     ` Eric Dumazet
2022-01-26 16:35       ` Paolo Abeni [this message]
2022-01-26 18:02         ` Eric Dumazet
2022-01-25 18:02 ` [PATCH net-next 0/6] netns: speedup netns dismantles Jakub Kicinski

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