mei: bus: fix possible boundaries violation

function 'strncpy' will fill whole buffer 'id.name' of fixed size (32)
with string value and will not leave place for NULL-terminator.
Possible buffer boundaries violation in following string operations.
Replace strncpy with strlcpy.

Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 09dad2df7aaeab55200c130ecfdf0ca228bf739c..1cf3a72f295493d689ff44a8d4363ccf7b65be9a 100644 (file)
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -70,7 +70,7 @@ static int mei_cl_device_probe(struct device *dev)
 
        dev_dbg(dev, "Device probe\n");
 
-       strncpy(id.name, dev_name(dev), sizeof(id.name));
+       strlcpy(id.name, dev_name(dev), sizeof(id.name));
 
        return driver->probe(device, &id);
 }