1/* 2 * Copyright (C) 2006 Jeff Dike (jdike@addtoit.com) 3 * Licensed under the GPL V2 4 */ 5 6#include <linux/uaccess.h> 7 8/* Mostly copied from i386/x86_86 - eliminated the eip < PAGE_OFFSET because 9 * that's not relevent in skas mode. 10 */ 11 12int is_valid_bugaddr(unsigned long eip) 13{ 14 unsigned short ud2; 15 16 if (probe_kernel_address((unsigned short __user *)eip, ud2)) 17 return 0; 18 19 return ud2 == 0x0b0f; 20} 21