Messages in this thread | | | From | Oliver Neukum <> | Subject | Re: [linux-usb-devel] 2.6.20-rc4: null pointer deref in khubd | Date | Wed, 10 Jan 2007 20:54:56 +0100 |
| |
Am Mittwoch, 10. Januar 2007 18:31 schrieb Alan Stern: > > Regarding the bug this device uncovers, it seems to me that this in drivers/base/core.c > > if (parent) > > klist_add_tail(&dev->knode_parent, &parent->klist_children); > > should make knode_parent a valid node under all circumstances. > > Hm. > > I haven't seen the original bug report. Where does the NULL pointer deref > occur?
Apparently here: drivers/base/core.c:
void device_del(struct device * dev) { struct device * parent = dev->parent; struct class_interface *class_intf;
if (parent) klist_del(&dev->knode_parent);
The obvious change with this device is that usb_set_configuration() is never called, but that should not matter.
Regards Oliver - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |