USB: usbfs: fix potential infoleak in devio
authorKangjie Lu <kangjielu@gmail.com>
Tue, 3 May 2016 20:32:16 +0000 (16:32 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 20 Aug 2016 16:09:16 +0000 (18:09 +0200)
commit4077ef4797a8ff007a2de091c9befee4882c4790
treeb3a67c889cf81c447f53571a504f87da7e4da58b
parent97917f45211d7e5c0afd5f4dc33982c096a26722
USB: usbfs: fix potential infoleak in devio

commit 681fef8380eb818c0b845fca5d2ab1dcbab114ee 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>
drivers/usb/core/devio.c