This is a note to let you know that I've just added the patch titled can: usb_8dev: Fix memory leak of priv->cmd_msg_buffer to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: can-usb_8dev-fix-memory-leak-of-priv-cmd_msg_buffer.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 7c42631376306fb3f34d51fda546b50a9b6dd6ec Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> Date: Thu, 2 Mar 2017 12:03:40 +0100 Subject: can: usb_8dev: Fix memory leak of priv->cmd_msg_buffer From: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> commit 7c42631376306fb3f34d51fda546b50a9b6dd6ec upstream. The priv->cmd_msg_buffer is allocated in the probe function, but never kfree()ed. This patch converts the kzalloc() to resource-managed kzalloc. Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/net/can/usb/usb_8dev.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) --- a/drivers/net/can/usb/usb_8dev.c +++ b/drivers/net/can/usb/usb_8dev.c @@ -951,8 +951,8 @@ static int usb_8dev_probe(struct usb_int for (i = 0; i < MAX_TX_URBS; i++) priv->tx_contexts[i].echo_index = MAX_TX_URBS; - priv->cmd_msg_buffer = kzalloc(sizeof(struct usb_8dev_cmd_msg), - GFP_KERNEL); + priv->cmd_msg_buffer = devm_kzalloc(&intf->dev, sizeof(struct usb_8dev_cmd_msg), + GFP_KERNEL); if (!priv->cmd_msg_buffer) goto cleanup_candev; @@ -966,7 +966,7 @@ static int usb_8dev_probe(struct usb_int if (err) { netdev_err(netdev, "couldn't register CAN device: %d\n", err); - goto cleanup_cmd_msg_buffer; + goto cleanup_candev; } err = usb_8dev_cmd_version(priv, &version); @@ -987,9 +987,6 @@ static int usb_8dev_probe(struct usb_int cleanup_unregister_candev: unregister_netdev(priv->netdev); -cleanup_cmd_msg_buffer: - kfree(priv->cmd_msg_buffer); - cleanup_candev: free_candev(netdev); Patches currently in stable-queue which might be from mkl@xxxxxxxxxxxxxx are queue-4.9/can-gs_usb-don-t-use-stack-memory-for-usb-transfers.patch queue-4.9/can-usb_8dev-fix-memory-leak-of-priv-cmd_msg_buffer.patch