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can: kvaser_usb: kvaser_usb_leaf: Fix some info-leaks to USB devices

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commit da2311a638 upstream.

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: 7259124eac ("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>
[bwh: Backported to 4.9: adjust filename, context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xiaolong Huang 2019-12-07 22:40:24 +08:00 committed by Greg Kroah-Hartman
parent ed92d7f718
commit 360ca1593a
1 changed files with 3 additions and 3 deletions
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6
drivers/net/can/usb/kvaser_usb.c
View file

@ -791,7 +791,7 @@ static int kvaser_usb_simple_msg_async(struct kvaser_usb_net_priv *priv,
if (!urb)
return -ENOMEM;
buf = kmalloc(sizeof(struct kvaser_msg), GFP_ATOMIC);
buf = kzalloc(sizeof(struct kvaser_msg), GFP_ATOMIC);
if (!buf) {
usb_free_urb(urb);
return -ENOMEM;
@ -1459,7 +1459,7 @@ static int kvaser_usb_set_opt_mode(const struct kvaser_usb_net_priv *priv)
struct kvaser_msg *msg;
int rc;
msg = kmalloc(sizeof(*msg), GFP_KERNEL);
msg = kzalloc(sizeof(*msg), GFP_KERNEL);
if (!msg)
return -ENOMEM;
@ -1592,7 +1592,7 @@ static int kvaser_usb_flush_queue(struct kvaser_usb_net_priv *priv)
struct kvaser_msg *msg;
int rc;
msg = kmalloc(sizeof(*msg), GFP_KERNEL);
msg = kzalloc(sizeof(*msg), GFP_KERNEL);
if (!msg)
return -ENOMEM;