netdev - Re: [PATCH net] net: avoid NULL deref in inet_ctl_sock

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Message-ID: <1446483642.23275.16.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Mon, 02 Nov 2015 09:00:42 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Hannes Frederic Sowa <hannes@...essinduktion.org>
Cc:	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	Dmitry Vyukov <dvyukov@...gle.com>
Subject: Re: [PATCH net] net: avoid NULL deref in inet_ctl_sock_destroy()

On Mon, 2015-11-02 at 17:53 +0100, Hannes Frederic Sowa wrote:
> On Mon, Nov 2, 2015, at 16:50, Eric Dumazet wrote:
> > From: Eric Dumazet <edumazet@...gle.com>
> > 
> > Under low memory conditions, tcp_sk_init() and icmp_sk_init()
> > can both iterate on all possible cpus and call inet_ctl_sock_destroy(),
> > with eventual NULL pointer.
> > 
> > Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> > Reported-by: Dmitry Vyukov <dvyukov@...gle.com>
> 
> Eric, was this a private report or some of those floating around
> publicly?

Dmitry Vyukov filled two internal bug reports at Google,
not sure if he mentioned the issue elsewhere.

Google-Bug-Id: 25415196
Google-Bug-Id: 25416355

(But you do not have access to them)



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