* [Qemu-devel] [PATCH] usb-host: add range checks for usb-host parameters
@ 2013-12-12 13:47 Gerd Hoffmann
0 siblings, 0 replies; only message in thread
From: Gerd Hoffmann @ 2013-12-12 13:47 UTC (permalink / raw)
To: qemu-devel; +Cc: Gerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
hw/usb/host-libusb.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c
index fd320cd..164adf8 100644
--- a/hw/usb/host-libusb.c
+++ b/hw/usb/host-libusb.c
@@ -898,6 +898,19 @@ static int usb_host_initfn(USBDevice *udev)
{
USBHostDevice *s = USB_HOST_DEVICE(udev);
+ if (s->match.vendor_id > 0xffff) {
+ error_report("vendorid out of range");
+ return -1;
+ }
+ if (s->match.product_id > 0xffff) {
+ error_report("productid out of range");
+ return -1;
+ }
+ if (s->match.addr > 127) {
+ error_report("hostaddr out of range");
+ return -1;
+ }
+
loglevel = s->loglevel;
udev->flags |= (1 << USB_DEV_FLAG_IS_HOST);
udev->auto_attach = 0;
--
1.8.3.1
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