linux-kernel - Re: [patch -target tree] usb: gadget: f

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Message-ID: <1457162818.19657.282.camel@haakon3.risingtidesystems.com>
Date:	Fri, 04 Mar 2016 23:26:58 -0800
From:	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>
To:	Felipe Balbi <balbi@...nel.org>
Cc:	Dan Carpenter <dan.carpenter@...cle.com>,
	Christoph Hellwig <hch@....de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Andrzej Pietrasiewicz <andrzej.p@...sung.com>,
	Bart Van Assche <bart.vanassche@...disk.com>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	target-devel@...r.kernel.org
Subject: Re: [patch -target tree] usb: gadget: f_tcm: use after free

Hi Felipe + usb-gadget folks,

On Wed, 2016-03-02 at 13:55 +0200, Felipe Balbi wrote:
> Dan Carpenter <dan.carpenter@...cle.com> writes:
> > We need to move the kfree() down a line so we don't dereference a freed
> > variable.
> >
> > Fixes: 1b418a8fcbc0 ('target: Convert demo-mode only drivers to target_alloc_session')
> > Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
> 
> It's okay to take this via target:
> 
> Signed-off-by: Felipe Balbi <balbi@...nel.org>
> 

Note this specific patch is only a mechanical change, and we still need
reviews for the more interesting conversions:

usb-gadget/tcm: Conversion to percpu_ida tag pre-allocation
http://www.spinics.net/lists/target-devel/msg11777.html

usb-gadget/tcm: Convert to TARGET_SCF_ACK_KREF I/O krefs
http://www.spinics.net/lists/target-devel/msg11782.html

Felipe, Sebastian, & Andrezj, would you be so kind to review and test
usb-gadget using target-pending/for-next code..?