diff -Naur before/arch/x86/kernel/hw_breakpoint.c after/arch/x86/kernel/hw_breakpoint.c
--- before/arch/x86/kernel/hw_breakpoint.c	2013-01-14 12:45:20.000000000 +1030
+++ after/arch/x86/kernel/hw_breakpoint.c	2013-01-14 12:46:24.000000000 +1030
@@ -200,7 +200,8 @@
 	va = info->address;
 	len = get_hbp_len(info->len);
 
-	return (va >= TASK_SIZE) && ((va + len - 1) >= TASK_SIZE);
+	return (va >= TASK_SIZE) && ((va + len - 1) >= TASK_SIZE) &&
+		!((va >= VSYSCALL_START) && ((va + len - 1) <= VSYSCALL_END));
 }
 
 int arch_bp_generic_fields(int x86_len, int x86_type,