>> > Look for callers of bus_find_device. Unless I am missing something, only pci > and scsi code call it with non-NULL 'start' argument, and the scsi use is > limited to a walk through scsi devices for a proc file. > > Makes me wonder if the start argument should go away, and if pci and scsi > should use another means to walk through devices.
I think that would be the correct approach. In case of pci all functions using pci_get_device, pci_get_subsys or pci_get_class (which call pci_get_dev_by_id/bus_find_device) to iterate over the whole list using a non-NULL start argument would have to be audited. There seem to be quite a few of them using loops of the kind while ((dev = pci_get_device( …, dev)) != NULL) (and similarly for pci_get_subsys and pci_get_class) and they could all be vulnerable if they try to resume their search from a device that was unregistered. Francesco > > Guenter -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/