mirror of https://gitee.com/openkylin/linux.git
22 lines
423 B
C
22 lines
423 B
C
/*
|
|
* Copyright (C) 2006 Jeff Dike (jdike@addtoit.com)
|
|
* Licensed under the GPL V2
|
|
*/
|
|
|
|
#include <linux/uaccess.h>
|
|
#include <asm/errno.h>
|
|
|
|
/* Mostly copied from i386/x86_86 - eliminated the eip < PAGE_OFFSET because
|
|
* that's not relevant in skas mode.
|
|
*/
|
|
|
|
int is_valid_bugaddr(unsigned long eip)
|
|
{
|
|
unsigned short ud2;
|
|
|
|
if (probe_kernel_address((unsigned short __user *)eip, ud2))
|
|
return 0;
|
|
|
|
return ud2 == 0x0b0f;
|
|
}
|