Merge branch 'sh/stable-updates'

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 38b8bce782d6..4247eccf858c 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);