netdev - Re: Information leak in pptp

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Message-ID: <566F4665.6070800@stressinduktion.org>
Date:	Mon, 14 Dec 2015 23:44:53 +0100
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	Dmitry Vyukov <dvyukov@...il.com>, Dmitry Kozlov <xeb@...l.ru>,
	netdev@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Cc:	syzkaller@...glegroups.com, Kostya Serebryany <kcc@...gle.com>,
	Alexander Potapenko <glider@...gle.com>,
	Dmitry Vyukov <dvyukov@...gle.com>, edumazet@...gle.com,
	Sasha Levin <sasha.levin@...cle.com>, keescook@...gle.com,
	jln@...gle.com
Subject: Re: Information leak in pptp_bind

On 14.12.2015 11:38, Dmitry Vyukov wrote:
> The following program leak various uninit garbage including kernel
> addresses and whatever is on kernel stack, in particular defeating
> ASLR. The issue is in pptp_bind which does not verify sockaddr_len.

Thanks for the report!

I send out a patch soon.


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