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Date: Thu, 8 Aug 2019 11:28:25 +0200
From: Oliver Neukum <oneukum@...e.com>
To: davem@...emloft.net, netdev@...r.kernel.org
Cc: Oliver Neukum <oneukum@...e.com>
Subject: [PATCH] pcan_usb_fd: zero out the common command buffer
Lest we leak kernel memory to a device we better zero out buffers.
Reported-by: syzbot+513e4d0985298538bf9b@...kaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@...e.com>
---
drivers/net/can/usb/peak_usb/pcan_usb_fd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
index 34761c3a6286..47cc1ff5b88e 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
@@ -841,7 +841,7 @@ static int pcan_usb_fd_init(struct peak_usb_device *dev)
goto err_out;
/* allocate command buffer once for all for the interface */
- pdev->cmd_buffer_addr = kmalloc(PCAN_UFD_CMD_BUFFER_SIZE,
+ pdev->cmd_buffer_addr = kzalloc(PCAN_UFD_CMD_BUFFER_SIZE,
GFP_KERNEL);
if (!pdev->cmd_buffer_addr)
goto err_out_1;
--
2.16.4
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