USB: usbfs: fix potential infoleak in devio

commit 681fef8380 upstream.

The stack object “ci” has a total size of 8 bytes. Its last 3 bytes
are padding bytes which are not initialized and leaked to userland
via “copy_to_user”.

Signed-off-by: Kangjie Lu <kjlu@gatech.edu>
Signed-off-by: Chas Williams <ciwillia@brocade.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kangjie Lu 2016-05-03 16:32:16 -04:00 • committed by Greg Kroah-Hartman
commit 4077ef4797