d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

usbhid(4): Be more restrictive about what requests are allowed from user-space.

Browse Source 
MFC after:	1 month
Sponsored by:	NVIDIA Networking
This commit is contained in:
Hans Petter Selasky 2022-03-03 10:24:02 +01:00
parent 8ed5bb59e9
commit fcca9fd98c
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
sys/dev/usb/input/usbhid.c
View File

@ -69,6 +69,7 @@ __FBSDID("$FreeBSD$");
#include <dev/usb/usbhid.h>
#include <dev/usb/usb_core.h>
#include <dev/usb/usb_ioctl.h>
#include <dev/usb/usb_util.h>
#define USB_DEBUG_VAR usbhid_debug
#include <dev/usb/usb_debug.h>
@ -694,7 +695,9 @@ usbhid_ioctl(device_t dev, unsigned long cmd, uintptr_t data)
sc, USBHID_CTRL_DT, UGETW(req.ctrl.wLength));
if (error)
break;
error = usb_check_request(sc->sc_udev, &req.ctrl);
if (error)
break;
error = usbhid_sync_xfer(
sc, USBHID_CTRL_DT, &req, ucr->ucr_data);
if (error == 0)