1 files changed, 6 insertions, 6 deletions

diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 04cd6882308e..e1f3a17034fc 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -33,9 +33,8 @@
 #define segment_eq(a, b)        ((a).seg == (b).seg)
 
 #define user_addr_max() (current_thread_info()->addr_limit.seg)
-#define __addr_ok(addr)                                 \
-        ((unsigned long __force)(addr) <                \
-         (current_thread_info()->addr_limit.seg))
+#define __addr_ok(addr)         \
+        ((unsigned long __force)(addr) < user_addr_max())
 
 /*
  * Test whether a block of memory is a valid user space address.
@@ -47,14 +46,14 @@
  * This needs 33-bit (65-bit for x86_64) arithmetic. We have a carry...
  */
 
-#define __range_not_ok(addr, size)                                      \
+#define __range_not_ok(addr, size, limit)                               \
 ({                                                                      \
         unsigned long flag, roksum;                                     \
         __chk_user_ptr(addr);                                           \
         asm("add %3,%1 ; sbb %0,%0 ; cmp %1,%4 ; sbb $0,%0"             \
             : "=&r" (flag), "=r" (roksum)                               \
             : "1" (addr), "g" ((long)(size)),                           \
-              "rm" (current_thread_info()->addr_limit.seg));            \
+              "rm" (limit));                                            \
         flag;                                                           \
 })
 
@@ -77,7 +76,8 @@
  * checks that the pointer is in the user space range - after calling
  * this function, memory access functions may still return -EFAULT.
  */
-#define access_ok(type, addr, size) (likely(__range_not_ok(addr, size) == 0))
+#define access_ok(type, addr, size) \
+        (likely(__range_not_ok(addr, size, user_addr_max()) == 0))
 
 /*
  * The exception table consists of pairs of addresses relative to the