Commit 30a8beeb authored by Tomas Bortoli's avatar Tomas Bortoli Committed by Marc Kleine-Budde

can: peak_usb: pcan_usb_fd: Fix info-leaks to USB devices

Uninitialized Kernel memory can leak to USB devices.

Fix by using kzalloc() instead of kmalloc() on the affected buffers.
Signed-off-by: default avatarTomas Bortoli <tomasbortoli@gmail.com>
Reported-by: syzbot+513e4d0985298538bf9b@syzkaller.appspotmail.com
Fixes: 0a25e1f4 ("can: peak_usb: add support for PEAK new CANFD USB adapters")
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
parent e787f193
...@@ -841,7 +841,7 @@ static int pcan_usb_fd_init(struct peak_usb_device *dev) ...@@ -841,7 +841,7 @@ static int pcan_usb_fd_init(struct peak_usb_device *dev)
goto err_out; goto err_out;
/* allocate command buffer once for all for the interface */ /* 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); GFP_KERNEL);
if (!pdev->cmd_buffer_addr) if (!pdev->cmd_buffer_addr)
goto err_out_1; goto err_out_1;
......
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