linux-kernel - [PATCH AUTOSEL 4.9 14/99] m68k: fix command-line parsing when passed from u-boot

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20191116155103.10971-14-sashal@kernel.org>
Date:   Sat, 16 Nov 2019 10:49:37 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Angelo Dureghello <angelo@...am.it>,
        Greg Ungerer <gerg@...ux-m68k.org>,
        Sasha Levin <sashal@...nel.org>,
        linux-m68k@...ts.linux-m68k.org
Subject: [PATCH AUTOSEL 4.9 14/99] m68k: fix command-line parsing when passed from u-boot

From: Angelo Dureghello <angelo@...am.it>

[ Upstream commit 381fdd62c38344a771aed06adaf14aae65c47454 ]

This patch fixes command_line array zero-terminated
one byte over the end of the array, causing boot to hang.

Signed-off-by: Angelo Dureghello <angelo@...am.it>
Signed-off-by: Greg Ungerer <gerg@...ux-m68k.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/m68k/kernel/uboot.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/m68k/kernel/uboot.c b/arch/m68k/kernel/uboot.c
index b3536a82a2620..e002084af1012 100644
--- a/arch/m68k/kernel/uboot.c
+++ b/arch/m68k/kernel/uboot.c
@@ -103,5 +103,5 @@ __init void process_uboot_commandline(char *commandp, int size)
 	}
 
 	parse_uboot_commandline(commandp, len);
-	commandp[size - 1] = 0;
+	commandp[len - 1] = 0;
 }
-- 
2.20.1