linux-kernel - Re: 2.6.35-rc2 module reference counting broken

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]

Date:	Wed, 09 Jun 2010 09:01:58 +0200
From:	Tejun Heo <tj@...nel.org>
To:	Al Viro <viro@...IV.linux.org.uk>
CC:	linux-kernel@...r.kernel.org,
	Rusty Russell <rusty@...tcorp.com.au>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jari Ruusu <jariruusu@...rs.sourceforge.net>,
	Nick Piggin <npiggin@...e.de>,
	Jens Axboe <jens.axboe@...cle.com>
Subject: Re: 2.6.35-rc2 module reference counting broken

Hello,

On 06/09/2010 01:48 AM, Al Viro wrote:
>>     block: implement bd_claiming and claiming block
>>
>> I'm far too sleepy right now, but I'd start with reviewing what that
>> thing is doing to module refcounting...
> 
> Yeah...  bd_start_claiming() grabs a reference to gendisk and we never
> let it go.  There's your leak...

Eh, I thought you were cc'd.  Sorry.  This was fixed sometime back by
Nick and queued in block tree (delayed due to mail misdelivery).

  http://thread.gmane.org/gmane.linux.file-systems/40655

Thanks.

-- 
tejun
--
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/