netdev - Re: Fw: Linux tcp_xmit_retransmit_queue use after free on 4.8-rc1 / master]

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Message-ID: <1471361940.4943.4.camel@edumazet-glaptop3.roam.corp.google.com>
Date:	Tue, 16 Aug 2016 08:39:00 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	netdev@...r.kernel.org, Marco Grassi <marco.gra@...il.com>
Subject: Re: Fw: Linux tcp_xmit_retransmit_queue use after free on 4.8-rc1 /
 master]

On Tue, 2016-08-16 at 12:45 +0200, Greg KH wrote:
> For some reason Marco's emails can't make it to netdev, so I'm
> forwarding this on.  Please cc: him on responses.

Thanks for the report Greg and Marco.

My first guess is this is caused by 

d41a69f1d390 tcp: make tcp_sendmsg() aware of socket backlog

And a combination of funky sendmsg() flags (like FastOpen)

I will look at this problem today.