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From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Florian Westphal <fw@strlen.de>
Cc: netdev@vger.kernel.org, netfilter-devel@vger.kernel.org,
	coreteam@netfilter.org
Subject: Re: 6.1: possible bug with netfilter conntrack?
Date: Fri, 13 Jan 2023 13:36:15 +0000	[thread overview]
Message-ID: <Y8FeT7pAUDeILb/X@shell.armlinux.org.uk> (raw)
In-Reply-To: <20230113125629.GD19463@breakpoint.cc>

On Fri, Jan 13, 2023 at 01:56:29PM +0100, Florian Westphal wrote:
> Right, this is silly.  I'll see about this; the rst packet
> bypasses conntrack because nf_send_reset attaches the exising
> entry of the packet its replying to -- tcp conntrack gets skipped for
> the generated RST.
> 
> But this is also the case in 5.16, so no idea why this is surfacing now.

Maybe it's just down to a change in the traffic characteristics that
now makes it a problem, and it appearing after upgrading to 6.1 is
just coincidence?

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!

      reply	other threads:[~2023-01-13 13:44 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-12 23:03 6.1: possible bug with netfilter conntrack? Russell King (Oracle)
2023-01-12 23:38 ` Florian Westphal
2023-01-13  0:16   ` Russell King (Oracle)
2023-01-12 23:40 ` Russell King (Oracle)
2023-01-12 23:45   ` Florian Westphal
2023-01-13 11:12     ` Russell King (Oracle)
2023-01-13 12:56       ` Florian Westphal
2023-01-13 13:36         ` Russell King (Oracle) [this message]

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