Fix x86 kernel page fault error codes

diff --git a/arch/i386/mm/fault.c b/arch/i386/mm/fault.c
index b05a10a9a69fe970fa150d18bf9afe8189f4871b..dcec5e732cf6293e8fdd41783de55195b14a0ff7 100644 (file)
--- a/arch/i386/mm/fault.c
+++ b/arch/i386/mm/fault.c
@@ -359,7 +359,8 @@ bad_area_nosemaphore:
                        return;
 
                tsk->thread.cr2 = address;
-               tsk->thread.error_code = error_code;
+               /* Kernel addresses are always protection faults */
+               tsk->thread.error_code = error_code | (address >= TASK_SIZE);
                tsk->thread.trap_no = 14;
                info.si_signo = SIGSEGV;
                info.si_errno = 0;