Commit caca925f authored by Cameron Gutman's avatar Cameron Gutman Committed by Dmitry Torokhov

Input: xpad - validate USB endpoint count during probe

This prevents a malicious USB device from causing an oops.
Signed-off-by: default avatarCameron Gutman <>
Signed-off-by: default avatarDmitry Torokhov <>
parent 9a9b6aa6
......@@ -1431,6 +1431,9 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
int ep_irq_in_idx;
int i, error;
if (intf->cur_altsetting->desc.bNumEndpoints != 2)
return -ENODEV;
for (i = 0; xpad_device[i].idVendor; i++) {
if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
(le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
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