linux-kernel - Re: [PATCH] drivers/usb/class/cdc-acm.c: clear dangling pointer

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Message-Id: <201112272256.39617.oliver@neukum.org>
Date:	Tue, 27 Dec 2011 22:56:39 +0100
From:	Oliver Neukum <oliver@...kum.org>
To:	Julia Lawall <julia@...u.dk>
Cc:	Oliver Neukum <oliver@...kum.name>,
	kernel-janitors@...r.kernel.org,
	"Greg Kroah-Hartman" <gregkh@...e.de>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers/usb/class/cdc-acm.c: clear dangling pointer

Am Freitag, 23. Dezember 2011, 14:02:55 schrieb Julia Lawall:
> From: Julia Lawall <julia@...u.dk>
> 
> On some failures, the country_code field of an acm structure is freed
> without freeing the acm structure itself.  Elsewhere, operations including
> memcpy and kfree are performed on the country_code field.  The patch sets
> the country_code field to NULL when it is freed, and likewise sets the
> country_code_size field to 0.
> 
> Signed-off-by: Julia Lawall <julia@...u.dk>
Acked-by: Oliver NEukum <oneukum@...e.de>

This is in principle oopsable and should go into stable.

	Regards
		Oliver
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