aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86_64/mm/fault.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86_64/mm/fault.c')
-rw-r--r--arch/x86_64/mm/fault.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c
index 327c9f2fa626..54816adb8e93 100644
--- a/arch/x86_64/mm/fault.c
+++ b/arch/x86_64/mm/fault.c
@@ -374,6 +374,13 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
if (unlikely(in_atomic() || !mm))
goto bad_area_nosemaphore;
+ /*
+ * User-mode registers count as a user access even for any
+ * potential system fault or CPU buglet.
+ */
+ if (user_mode_vm(regs))
+ error_code |= PF_USER;
+
again:
/* When running in the kernel we expect faults to occur only to
* addresses in user space. All other faults represent errors in the

Privacy Policy