diff -urpN linux-2.6.18-371.9.1.el5.028stab114.2/arch/x86_64/kernel/ptrace.c linux-2.6.18-371.9.1.el5.028stab114.2-owl/arch/x86_64/kernel/ptrace.c
--- linux-2.6.18-371.9.1.el5.028stab114.2/arch/x86_64/kernel/ptrace.c	2014-06-30 06:58:47 +0000
+++ linux-2.6.18-371.9.1.el5.028stab114.2-owl/arch/x86_64/kernel/ptrace.c	2014-07-07 08:09:18 +0000
@@ -314,6 +314,10 @@ static int putreg(struct task_struct *ch
 			return -EIO;
 		value &= 0xffff;
 		break;
+	case offsetof(struct user_regs_struct,rip):
+		if (value >= TASK_SIZE_OF(child))
+			return -EIO;
+		break;
 	}
 	put_stack_long(child, regno - sizeof(struct pt_regs), value);
 	return 0;