linux-kernel - Re: [RFC][PATCH 0/4] tracing/kprobes/uprobes: Fix race between opening probe event files and deleting probe

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: <1374003524.6458.51.camel@gandalf.local.home>
Date:	Tue, 16 Jul 2013 15:38:44 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	linux-kernel@...r.kernel.org,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	"zhangwei(Jovi)" <jovi.zhangwei@...wei.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [RFC][PATCH 0/4] tracing/kprobes/uprobes: Fix race between
 opening probe event files and deleting probe

On Tue, 2013-07-16 at 21:22 +0200, Oleg Nesterov wrote:

> But tracing_open_generic_file()->trace_array_get() is racy, no?
> Somehow we need to ensure it is safe to use file / file->tr.

Ah crap. Yeah, I see what you mean. It's the race that I described with
deleting private data and using it on open. :-p


> Btw, Steven, what about other pending (and orthogonal changes) ?
> >From Jovi, from me. I see nothing new in linux-trace.git#for-next...

My INBOX is full with too much crap. I thought I grabbed the patches
from you and Jovi, but they may have been something else.

Can you just tell me what the subjects were. My INBOX currently has
>10,000 emails, and it's just getting worse.

-- Steve


--
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/