Re: [PATCH] net: lan78xx: Fix race in tx pending skb size calculation

From: Stefan Wahren stefan.wahren@i2se.com Date: Sun, 15 Jul 2018 21:53:20 +0200

The skb size calculation in lan78xx_tx_bh is in race with the start_xmit, which could lead to rare kernel oopses. So protect the whole skb walk with a spin lock. As a benefit we can unlink the skb directly.

This patch was tested on Raspberry Pi 3B+

Link: https://github.com/raspberrypi/linux/issues/2608 Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet") Cc: stable stable@vger.kernel.org Signed-off-by: Floris Bos bos@je-eigen-domein.nl Signed-off-by: Stefan Wahren stefan.wahren@i2se.com

Applied and queued up for -stable, thanks.