From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 12 Feb 2013 09:06:12 +0000 (+0100)
Subject: cris/kgdb: Fix buffer overflow in getpacket()
X-Git-Tag: next-20130607~122^2~25
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9d2bb30feecc1f5b0d97bdda09042e3d451e429d;p=karo-tx-linux.git

cris/kgdb: Fix buffer overflow in getpacket()

arch/cris/arch-v10/kernel/kgdb.c: In function 'handle_exception':
arch/cris/arch-v10/kernel/kgdb.c:534:17: warning: array subscript is above array bounds [-Warray-bounds]

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---

diff --git a/arch/cris/arch-v10/kernel/kgdb.c b/arch/cris/arch-v10/kernel/kgdb.c
index d0b6257afc2c..0e799073498d 100644
--- a/arch/cris/arch-v10/kernel/kgdb.c
+++ b/arch/cris/arch-v10/kernel/kgdb.c
@@ -523,7 +523,7 @@ getpacket (char *buffer)
 		xmitcsum = -1;
 		count = 0;
 		/* Read until a # or the end of the buffer is reached */
-		while (count < BUFMAX) {
+		while (count < BUFMAX - 1) {
 			ch = getDebugChar ();
 			if (ch == '#')
 				break;