diff -NurpP --minimal linux-2.6.31.6-vs2.3.0.36.24.2/drivers/char/tty_io.c linux-2.6.31.6-vs2.3.0.36.24.3/drivers/char/tty_io.c
--- linux-2.6.31.6-vs2.3.0.36.24.2/drivers/char/tty_io.c	2009-10-05 23:35:52.000000000 +0200
+++ linux-2.6.31.6-vs2.3.0.36.24.3/drivers/char/tty_io.c	2009-11-24 08:37:36.000000000 +0100
@@ -1949,7 +1949,8 @@ static int tiocsti(struct tty_struct *tt
 	char ch, mbz = 0;
 	struct tty_ldisc *ld;
 
-	if ((current->signal->tty != tty) && !capable(CAP_SYS_ADMIN))
+	if (((current->signal->tty != tty) && !capable(CAP_SYS_ADMIN)) ||
+		!vx_ccaps(VXC_TIOCSTI))
 		return -EPERM;
 	if (get_user(ch, p))
 		return -EFAULT;
diff -NurpP --minimal linux-2.6.31.6-vs2.3.0.36.24.2/include/linux/vserver/context.h linux-2.6.31.6-vs2.3.0.36.24.3/include/linux/vserver/context.h
--- linux-2.6.31.6-vs2.3.0.36.24.2/include/linux/vserver/context.h	2009-10-03 01:55:20.000000000 +0200
+++ linux-2.6.31.6-vs2.3.0.36.24.3/include/linux/vserver/context.h	2009-11-24 08:34:51.000000000 +0100
@@ -60,6 +60,7 @@
 #define VXC_SET_UTSNAME		0x00000001
 #define VXC_SET_RLIMIT		0x00000002
 #define VXC_FS_SECURITY		0x00000004
+#define VXC_TIOCSTI		0x00000010
 
 /* was	VXC_RAW_ICMP		0x00000100 */
 #define VXC_SYSLOG		0x00001000