linux-kernel - [ 24/95] parisc: kernel: using strlcpy() instead of strcpy()

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Date:	Tue, 25 Jun 2013 11:32:11 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Chen Gang <gang.chen@...anux.com>,
	Kyle McMartin <kyle@...artin.ca>, Helge Deller <deller@....de>
Subject: [ 24/95] parisc: kernel: using strlcpy() instead of strcpy()

3.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Chen Gang <gang.chen@...anux.com>

commit ea99b1adf22abd62bdcf14b1c9a0a4d3664eefd8 upstream.

'boot_args' is an input args, and 'boot_command_line' has a fix length.
So use strlcpy() instead of strcpy() to avoid memory overflow.

Signed-off-by: Chen Gang <gang.chen@...anux.com>
Acked-by: Kyle McMartin <kyle@...artin.ca>
Signed-off-by: Helge Deller <deller@....de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/parisc/kernel/setup.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -69,7 +69,8 @@ void __init setup_cmdline(char **cmdline
 		/* called from hpux boot loader */
 		boot_command_line[0] = '\0';
 	} else {
-		strcpy(boot_command_line, (char *)__va(boot_args[1]));
+		strlcpy(boot_command_line, (char *)__va(boot_args[1]),
+			COMMAND_LINE_SIZE);
 
 #ifdef CONFIG_BLK_DEV_INITRD
 		if (boot_args[2] != 0) /* did palo pass us a ramdisk? */


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