This is a note to let you know that I've just added the patch titled

can: cc770: Fix use after free in cc770_tx_interrupt()

to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: can-cc770-fix-use-after-free-in-cc770_tx_interrupt.patch and it can be found in the queue-3.18 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 9ffd7503944ec7c0ef41c3245d1306c221aef2be Mon Sep 17 00:00:00 2001

From: Andri Yngvason andri.yngvason@marel.com Date: Thu, 15 Mar 2018 18:23:17 +0000 Subject: can: cc770: Fix use after free in cc770_tx_interrupt()

From: Andri Yngvason andri.yngvason@marel.com

commit 9ffd7503944ec7c0ef41c3245d1306c221aef2be upstream.

This fixes use after free introduced by the last cc770 patch.

Signed-off-by: Andri Yngvason andri.yngvason@marel.com Fixes: 746201235b3f ("can: cc770: Fix queue stall & dropped RTR reply") Cc: linux-stable stable@vger.kernel.org Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/net/can/cc770/cc770.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)

--- a/drivers/net/can/cc770/cc770.c +++ b/drivers/net/can/cc770/cc770.c @@ -705,13 +705,12 @@ static void cc770_tx_interrupt(struct ne return; }

- can_put_echo_skb(priv->tx_skb, dev, 0); - can_get_echo_skb(dev, 0); - cf = (struct can_frame *)priv->tx_skb->data; stats->tx_bytes += cf->can_dlc; stats->tx_packets++;

+ can_put_echo_skb(priv->tx_skb, dev, 0); + can_get_echo_skb(dev, 0); priv->tx_skb = NULL;

netif_wake_queue(dev);

Patches currently in stable-queue which might be from andri.yngvason@marel.com are

queue-3.18/can-cc770-fix-use-after-free-in-cc770_tx_interrupt.patch queue-3.18/can-cc770-fix-queue-stall-dropped-rtr-reply.patch queue-3.18/can-cc770-fix-stalls-on-rt-linux-remove-redundant-irq-ack.patch