netdev - Re: [PATCH 11/11] usb: core: fix a race with usb_queue_reset

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, 21 Jan 2015 13:52:42 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Olivier Sobrie <olivier@...rie.be>
cc:	Jan Dumon <j.dumon@...ion.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	<linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>,
	<netdev@...r.kernel.org>
Subject: Re: [PATCH 11/11] usb: core: fix a race with usb_queue_reset_device()

On Wed, 21 Jan 2015, Olivier Sobrie wrote:

> I tested your patch. It also fixes the problem I observed.
> You can drop mine.
> 
> For your info:
> 
> My test consists in powering down a usb hso modem while one of its
> serial port is opened. It leads to two URB failures, each urb callback
> queues a reset.
> Without your fix (or without the one I sent), a crash happens after
> less than ~20 power up/down sequences. With your fix, after more than
> 1000 power up/down I don't see any crash.

Okay, I'll submit the patch.  Thanks for testing it.

Alan Stern

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html