[PATCH 3.17 051/146] mei: bus: fix possible boundaries violation

[Greg Kroah-Hartman]

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

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

From: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>

commit cfda2794b5afe7ce64ee9605c64bef0e56a48125 upstream.

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.

Signed-off-by: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/misc/mei/bus.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -70,7 +70,7 @@ static int mei_cl_device_probe(struct de
 
 	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);
 }


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