linux-kernel - Re: yama_ptrace_access_check(): possible recursive locking detected

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Message-ID: <1345017919.31459.36.camel@twins>
Date:	Wed, 15 Aug 2012 10:05:19 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Kees Cook <keescook@...omium.org>
Cc:	Fengguang Wu <fengguang.wu@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Oleg Nesterov <oleg@...hat.com>
Subject: Re: yama_ptrace_access_check(): possible recursive locking detected

On Tue, 2012-08-14 at 22:56 -0700, Kees Cook wrote:
> So Oleg's suggestion of removing the locking around the reading of
> ->comm is wrong since it really does need the lock. 

There's tons of code reading comm without locking.. you're saying that
all is broken?
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