diff options
Diffstat (limited to 'drivers/usb/core/devio.c')
| -rw-r--r-- | drivers/usb/core/devio.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 38b8bce782d..4247eccf858 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -595,7 +595,7 @@ static int usbdev_open(struct inode *inode, struct file *file) if (!ps) goto out; - ret = -ENOENT; + ret = -ENODEV; /* usbdev device-node */ if (imajor(inode) == USB_DEVICE_MAJOR) @@ -1321,7 +1321,8 @@ static int get_urb32(struct usbdevfs_urb *kurb, struct usbdevfs_urb32 __user *uurb) { __u32 uptr; - if (get_user(kurb->type, &uurb->type) || + if (!access_ok(VERIFY_READ, uurb, sizeof(*uurb)) || + __get_user(kurb->type, &uurb->type) || __get_user(kurb->endpoint, &uurb->endpoint) || __get_user(kurb->status, &uurb->status) || __get_user(kurb->flags, &uurb->flags) || @@ -1536,8 +1537,9 @@ static int proc_ioctl_compat(struct dev_state *ps, compat_uptr_t arg) u32 udata; uioc = compat_ptr((long)arg); - if (get_user(ctrl.ifno, &uioc->ifno) || - get_user(ctrl.ioctl_code, &uioc->ioctl_code) || + if (!access_ok(VERIFY_READ, uioc, sizeof(*uioc)) || + __get_user(ctrl.ifno, &uioc->ifno) || + __get_user(ctrl.ioctl_code, &uioc->ioctl_code) || __get_user(udata, &uioc->data)) return -EFAULT; ctrl.data = compat_ptr(udata); |