Merge /home/trondmy/scm/kernel/git/torvalds/linux-2.6

4 files changed, 15 insertions, 15 deletions

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index b4265aa7d45e..487ff672b104 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -30,6 +30,8 @@
  *  Revision history
  *    22.12.1999   0.1   Initial release (split from proc_usb.c)
  *    04.01.2000   0.2   Turned into its own filesystem
+ *    30.09.2005   0.3   Fix user-triggerable oops in async URB delivery
+ *    			 (CAN-2005-3055)
  */
 
 /*****************************************************************************/
@@ -58,7 +60,8 @@ static struct class *usb_device_class;
 struct async {
 	struct list_head asynclist;
 	struct dev_state *ps;
-	struct task_struct *task;
+	pid_t pid;
+	uid_t uid, euid;
 	unsigned int signr;
 	unsigned int ifnum;
 	void __user *userbuffer;
@@ -290,7 +293,8 @@ static void async_completed(struct urb *urb, struct pt_regs *regs)
 		sinfo.si_errno = as->urb->status;
 		sinfo.si_code = SI_ASYNCIO;
 		sinfo.si_addr = as->userurb;
-		send_sig_info(as->signr, &sinfo, as->task);
+		kill_proc_info_as_uid(as->signr, &sinfo, as->pid, as->uid, 
+				      as->euid);
 	}
         wake_up(&ps->wait);
 }
@@ -526,7 +530,9 @@ static int usbdev_open(struct inode *inode, struct file *file)
 	INIT_LIST_HEAD(&ps->async_completed);
 	init_waitqueue_head(&ps->wait);
 	ps->discsignr = 0;
-	ps->disctask = current;
+	ps->disc_pid = current->pid;
+	ps->disc_uid = current->uid;
+	ps->disc_euid = current->euid;
 	ps->disccontext = NULL;
 	ps->ifclaimed = 0;
 	wmb();
@@ -988,7 +994,9 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 		as->userbuffer = NULL;
 	as->signr = uurb->signr;
 	as->ifnum = ifnum;
-	as->task = current;
+	as->pid = current->pid;
+	as->uid = current->uid;
+	as->euid = current->euid;
 	if (!(uurb->endpoint & USB_DIR_IN)) {
 		if (copy_from_user(as->urb->transfer_buffer, uurb->buffer, as->urb->transfer_buffer_length)) {
 			free_async(as);
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
index cbb451d227d2..6385d1a99b60 100644
--- a/drivers/usb/core/hcd-pci.c
+++ b/drivers/usb/core/hcd-pci.c
@@ -242,7 +242,6 @@ int usb_hcd_pci_suspend (struct pci_dev *dev, pm_message_t message)
 	case HC_STATE_SUSPENDED:
 		/* no DMA or IRQs except when HC is active */
 		if (dev->current_state == PCI_D0) {
-			free_irq (hcd->irq, hcd);
 			pci_save_state (dev);
 			pci_disable_device (dev);
 		}
@@ -374,14 +373,6 @@ int usb_hcd_pci_resume (struct pci_dev *dev)
 
 	hcd->state = HC_STATE_RESUMING;
 	hcd->saw_irq = 0;
-	retval = request_irq (dev->irq, usb_hcd_irq, SA_SHIRQ,
-				hcd->irq_descr, hcd);
-	if (retval < 0) {
-		dev_err (hcd->self.controller,
-			"can't restore IRQ after resume!\n");
-		usb_hc_died (hcd);
-		return retval;
-	}
 
 	retval = hcd->driver->resume (hcd);
 	if (!HC_IS_RUNNING (hcd->state)) {
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index 640f41e47029..d07bba01995b 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -713,7 +713,7 @@ void usbfs_remove_device(struct usb_device *dev)
 			sinfo.si_errno = EPIPE;
 			sinfo.si_code = SI_ASYNCIO;
 			sinfo.si_addr = ds->disccontext;
-			send_sig_info(ds->discsignr, &sinfo, ds->disctask);
+			kill_proc_info_as_uid(ds->discsignr, &sinfo, ds->disc_pid, ds->disc_uid, ds->disc_euid);
 		}
 	}
 	usbfs_update_special();
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index 83d48c8133af..e6504f3370ad 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -52,7 +52,8 @@ struct dev_state {
 	struct list_head async_completed;
 	wait_queue_head_t wait;     /* wake up if a request completed */
 	unsigned int discsignr;
-	struct task_struct *disctask;
+	pid_t disc_pid;
+	uid_t disc_uid, disc_euid;
 	void __user *disccontext;
 	unsigned long ifclaimed;
 };