diff options
Diffstat (limited to 'arch/x86/mm/fault.c')
| -rw-r--r-- | arch/x86/mm/fault.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 4ce62fb80da..ebfaca3bbb1 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -595,28 +595,24 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address) return 0; } +static const char nx_warning[] = KERN_CRIT +"kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n"; + static void show_fault_oops(struct pt_regs *regs, unsigned long error_code, unsigned long address) { -#ifdef CONFIG_X86_32 if (!oops_may_print()) return; -#endif -#ifdef CONFIG_X86_PAE if (error_code & PF_INSTR) { unsigned int level; pte_t *pte = lookup_address(address, &level); - if (pte && pte_present(*pte) && !pte_exec(*pte)) { - printk(KERN_CRIT "kernel tried to execute " - "NX-protected page - exploit attempt? " - "(uid: %d)\n", current_uid()); - } + if (pte && pte_present(*pte) && !pte_exec(*pte)) + printk(nx_warning, current_uid()); } -#endif printk(KERN_ALERT "BUG: unable to handle kernel "); if (address < PAGE_SIZE) |