linux-kernel - Re: [RFC][PATCH] exec: Fix use after free of tracepoint trace_sched_process

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20140205011028.GM10323@ZenIV.linux.org.uk>
Date:	Wed, 5 Feb 2014 01:10:29 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Oleg Nesterov <oleg@...hat.com>,
	David Smith <dsmith@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Igor Zhbanov <i.zhbanov@...sung.com>,
	Christoph Hellwig <hch@...radead.org>
Subject: Re: [RFC][PATCH] exec: Fix use after free of tracepoint
 trace_sched_process_exec

On Tue, Feb 04, 2014 at 04:57:31PM -0800, Linus Torvalds wrote:
> On Tue, Feb 4, 2014 at 3:42 PM, Steven Rostedt <rostedt@...dmis.org> wrote:
> >
> > New version that moves all the ugliness into a static inline helper
> > function.
> 
> Ok, that's better, but I really think we should just use "getname()"
> and "putname()".

Umm...  Interactions with aushit might be interesting.  It hooks into
getname() and putname(); I'm not up to doing analysis right now (13 hours
of nearly non-stop {R,Grep}TFS today already and I'm ears-deep in
looking through locking implications of Miklos' stuff at the moment ;-/),
but it's worth looking into; there may be dragons.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/