linux-kernel - RE: [PATCH] usb/core: fix NULL pointer dereference in recursively_mark

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Message-ID: <Pine.LNX.4.44L0.1312261324390.24521-100000@netrider.rowland.org>
Date:	Thu, 26 Dec 2013 13:25:27 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	"Du, ChangbinX" <changbinx.du@...el.com>
cc:	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"sarah.a.sharp@...ux.intel.com" <sarah.a.sharp@...ux.intel.com>,
	"Lan, Tianyu" <tianyu.lan@...el.com>,
	"burzalodowa@...il.com" <burzalodowa@...il.com>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] usb/core: fix NULL pointer dereference in
 recursively_mark_NOTATTACHED

On Thu, 26 Dec 2013, Du, ChangbinX wrote:

> I can reproduce issue by adding a delay just after usb_set_intfdata(intf, NULL)
>  (echo -1 > bConfigurationValue to trigger hub_dissconnect())without your patch.
> 
> After patch applied, cannot reproduce and didn't found any other issue. Patch works well.
> 
> Alan, need I update patch to v2 or you will do it?

I will send in the updated patch next week, after I get back from 
vacation.

Alan Stern

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