linux-kernel - [PATCH 07/10] cris/kgdb: Fix buffer overflow in getpacket()

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Message-Id: <1360680777-12622-8-git-send-email-geert@linux-m68k.org>
Date:	Tue, 12 Feb 2013 15:52:54 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Mikael Starvik <starvik@...s.com>,
	Jesper Nilsson <jesper.nilsson@...s.com>
Cc:	linux-cris-kernel@...s.com, linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH 07/10] 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@...ux-m68k.org>
---
 arch/cris/arch-v10/kernel/kgdb.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/cris/arch-v10/kernel/kgdb.c b/arch/cris/arch-v10/kernel/kgdb.c
index d0b6257..0e79907 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;
-- 
1.7.0.4

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