From: Xiaolong Huang <butterflyhuangxx@gmail.com>
To: wg@grandegger.com, mkl@pengutronix.de
Cc: linux-can@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
Xiaolong Huang <butterflyhuangxx@gmail.com>
Subject: [PATCH] can: kvaser_usb: kvaser_usb_leaf: Fix some info-leaks to USB devices
Date: Sat, 7 Dec 2019 22:40:24 +0800 [thread overview]
Message-ID: <1575729624-5917-1-git-send-email-butterflyhuangxx@gmail.com> (raw)
Uninitialized Kernel memory can leak to USB devices.
Using kzalloc() instead of kmalloc()
Signed-off-by: Xiaolong Huang <butterflyhuangxx@gmail.com>
---
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 07d2f3a..ae4c37e 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;
--
2.7.4
reply other threads:[~2019-12-07 14:40 UTC|newest]
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