linux-kernel - Re: [PATCH] net: usb: asix: Fix crash on skb alloc failure

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Message-Id: <20151005.033155.2121849340240343993.davem@davemloft.net>
Date:	Mon, 05 Oct 2015 03:31:55 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	linux@...idrobins.net
Cc:	linux-usb@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: usb: asix: Fix crash on skb alloc failure

From: "David B. Robins" <linux@...idrobins.net>
Date: Wed, 30 Sep 2015 16:20:04 -0400

> If asix_rx_fixup_internal() fails to allocate rx->ax_skb, it will return
> but not clear rx->size. rx points to driver private data. A later call
> assumes that nonzero size means ax_skb was allocated and passes a null
> ax_skb to skb_put. Changed allocation failure return to clear size first.
> 
> Found testing board with AX88772B devices.
> 
> Signed-off-by: David B. Robins <linux@...idrobins.net>

Applied, thanks.
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