From: Larry Finger <Larry.Finger@lwfinger.net>
To: Christian Lamparter <chunkeey@web.de>
Cc: linux-wireless@vger.kernel.org,
John W Linville <linville@tuxdriver.com>,
Johannes Berg <johannes@sipsolutions.net>
Subject: Re: [PATCH v2] p54usb: rewriting rx/tx routines to make use of usb_anchor's facilities
Date: Tue, 09 Dec 2008 09:45:57 -0600 [thread overview]
Message-ID: <493E92B5.90803@lwfinger.net> (raw)
In-Reply-To: <200812091514.37634.chunkeey@web.de>
Christian Lamparter wrote:
> Alan Stern found several flaws in p54usb's implementation and annotated:
> "usb_kill_urb() and similar routines do not expect an URB's completion
> routine to deallocate it. This is almost obvious -- if the URB is deallocated
> before the completion routine returns then there's no way for usb_kill_urb
> to detect when the URB actually is complete."
>
> This patch addresses all known limitations in the old implementation and fixes
> khub's "use-after-freed" hang, when SLUB debug's poisoning option is enabled.
>
> Signed-off-by: Christian Lamparter <chunkeey@web.de>
> Cc: stable@kernel.org
> ---
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
---
next prev parent reply other threads:[~2008-12-09 15:46 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-09 14:14 [PATCH v2] p54usb: rewriting rx/tx routines to make use of usb_anchor's facilities Christian Lamparter
2008-12-09 14:35 ` John W. Linville
2008-12-09 14:46 ` Johannes Berg
2008-12-09 14:54 ` John W. Linville
2008-12-09 15:03 ` Johannes Berg
2008-12-09 15:16 ` Larry Finger
2008-12-09 15:07 ` Larry Finger
2008-12-09 15:45 ` Larry Finger [this message]
2008-12-09 16:11 ` Larry Finger
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