linux-kernel - Re: [PATCH v3] usb: misc: legousbtower: Fix buffers on stack

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Message-ID: <20170504221101.094c5061@h01rn72.ncal.norcal.wdc.com>
Date:   Thu, 4 May 2017 22:11:23 +0300
From:   Maksim Salau <maksim.salau@...il.com>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Cc:     Juergen Stuber <starblue@...rs.sourceforge.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        legousb-devel@...ts.sourceforge.net, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Alfredo Rafael Vicente Boix <alviboi@...il.com>
Subject: Re: [PATCH v3] usb: misc: legousbtower: Fix buffers on stack

> > @@ -913,6 +929,7 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device  
> 
> Don't you need to free get_version_reply here?
> 
> >  	return retval;
> >  
> >  error:
> > +	kfree(get_version_reply);
> >  	tower_delete(dev);
> >  	return retval;
> >  }  

Thank you very much, Heikki!

I was so focused on failure cases, that missed memory leak in the case
 when all calls succeeded.

I'll prepare a patch shortly to fix this.

Regards,
Maksim.