From: Xiaolong Huang butterflyhuangxx@gmail.com

Uninitialized Kernel memory can leak to USB devices.

Fix this by using kzalloc() instead of kmalloc().

Signed-off-by: Xiaolong Huang butterflyhuangxx@gmail.com Fixes: 7259124eac7d ("can: kvaser_usb: Split driver into kvaser_usb_core.c and kvaser_usb_leaf.c") Cc: linux-stable stable@vger.kernel.org # >= v4.19 Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de --- drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c index 07d2f3aa2c02..ae4c37e1bb75 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c @@ -608,7 +608,7 @@ static int kvaser_usb_leaf_simple_cmd_async(struct kvaser_usb_net_priv *priv, struct kvaser_cmd *cmd; int err;

- cmd = kmalloc(sizeof(*cmd), GFP_ATOMIC); + cmd = kzalloc(sizeof(*cmd), GFP_ATOMIC); if (!cmd) return -ENOMEM;

@@ -1140,7 +1140,7 @@ static int kvaser_usb_leaf_set_opt_mode(const struct kvaser_usb_net_priv *priv) struct kvaser_cmd *cmd; int rc;

- cmd = kmalloc(sizeof(*cmd), GFP_KERNEL); + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); if (!cmd) return -ENOMEM;

@@ -1206,7 +1206,7 @@ static int kvaser_usb_leaf_flush_queue(struct kvaser_usb_net_priv *priv) struct kvaser_cmd *cmd; int rc;

- cmd = kmalloc(sizeof(*cmd), GFP_KERNEL); + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); if (!cmd) return -ENOMEM;