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authorPaul Mackerras <paulus@samba.org>2007-09-20 10:09:27 +1000
committerPaul Mackerras <paulus@samba.org>2007-09-20 10:09:27 +1000
commit0ce49a3945474fc942ec37c0c0efece60f592f80 (patch)
treef42b821b2d9e2d8775bc22f56d444c2cc7b7b7dd /arch/x86_64/mm/fault.c
parent9e4859ef5462193643fd2b3c8ffb298e5a4a4319 (diff)
parenta88a8eff1e6e32d3288986a9d36c6a449c032d3a (diff)
Merge branch 'linux-2.6'
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 327c9f2fa62..54816adb8e9 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