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Commit e13c594f authored by Oliver Neukum's avatar Oliver Neukum Committed by Greg Kroah-Hartman
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USB: fix oops in cdc-wdm in case of malformed descriptors 



cdc-wdm needs to ignore extremely malformed descriptors.

Signed-off-by: default avatarOliver Neukum <oliver@neukum.org>
Cc: stable <stable@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent f05932c0

drivers/usb/class/cdc-wdm.c

+1 −1
Original line number Diff line number Diff line
@@ -652,7 +652,7 @@ static int wdm_probe(struct usb_interface *intf, const struct usb_device_id *id) 


	iface = &intf->altsetting[0];

	ep = &iface->endpoint[0].desc;

	if (!usb_endpoint_is_int_in(ep)) {

	if (!ep || !usb_endpoint_is_int_in(ep)) {

		rv = -EINVAL;

		goto err;

	}