patch-2.4.20 linux-2.4.20/drivers/isdn/pcbit/drv.c

• Lines: 9
• Date: Thu Nov 28 15:53:13 2002
• Orig file: linux-2.4.19/drivers/isdn/pcbit/drv.c
• Orig date: Sun Sep 30 12:26:06 2001

diff -urN linux-2.4.19/drivers/isdn/pcbit/drv.c linux-2.4.20/drivers/isdn/pcbit/drv.c
@@ -430,7 +430,7 @@
 	switch(dev->l2_state) {
 	case L2_LWMODE:
 		/* check (size <= rdp_size); write buf into board */
-		if (len > BANK4 + 1)
+		if (len < 0 || len > BANK4 + 1)
 		{
 			printk("pcbit_writecmd: invalid length %d\n", len);
 			return -EINVAL;