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| author | Xiaolong Huang <butterflyhuangxx@gmail.com> | 2019-12-07 17:40:24 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-20 11:24:13 +0300 |
| commit | c8ed03b9c541e9ac25085d4c2c74b775161c1654 (patch) | |
| tree | afc07696e8a1c9498e14017354fdf7ea5dc8526c | |
| parent | 35de820ec802dac28bc37f757723847e7ecd70d2 (diff) | |
| download | linux-c8ed03b9c541e9ac25085d4c2c74b775161c1654.tar.xz | |
can: kvaser_usb: kvaser_usb_leaf: Fix some info-leaks to USB devices
commit da2311a6385c3b499da2ed5d9be59ce331fa93e9 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: 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>
[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>
| -rw-r--r-- | drivers/net/can/usb/kvaser_usb.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c index 3a75352f632b..792a1afabf5d 100644 --- a/drivers/net/can/usb/kvaser_usb.c +++ b/drivers/net/can/usb/kvaser_usb.c @@ -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; |