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authorTomas Bortoli <tomasbortoli@gmail.com>2019-07-31 10:54:47 -0400
committerMarc Kleine-Budde <mkl@pengutronix.de>2019-08-02 13:58:01 +0200
commitead16e53c2f0ed946d82d4037c630e2f60f4ab69 (patch)
treef2960fc6f74c1ce7bc48baaec8b29c064b4a75bd /drivers/net/can/usb
parent30a8beeb3042f49d0537b7050fd21b490166a3d9 (diff)
can: peak_usb: pcan_usb_pro: 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: Tomas Bortoli <tomasbortoli@gmail.com> Reported-by: syzbot+d6a5a1a3657b596ef132@syzkaller.appspotmail.com Fixes: f14e22435a27 ("net: can: peak_usb: Do not do dma on the stack") Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/usb')
-rw-r--r--drivers/net/can/usb/peak_usb/pcan_usb_pro.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
index 178bb7cff0c1..53cb2f72bdd0 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
@@ -494,7 +494,7 @@ static int pcan_usb_pro_drv_loaded(struct peak_usb_device *dev, int loaded)
u8 *buffer;
int err;
- buffer = kmalloc(PCAN_USBPRO_FCT_DRVLD_REQ_LEN, GFP_KERNEL);
+ buffer = kzalloc(PCAN_USBPRO_FCT_DRVLD_REQ_LEN, GFP_KERNEL);
if (!buffer)
return -ENOMEM;