parisc: kernel: using strlcpy() instead of strcpy()

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@asianux.com>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index a3328c2616b0a6cf3f99eaff2fa2968cc58e1105..3b812eb2331d4bdb3802f2f53d3073435f93d0e3 100644 (file)
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -69,7 +69,8 @@ void __init setup_cmdline(char **cmdline_p)
                /* 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? */