CVE request: Linux kernel: USB: io_ti: NULL pointer dereference

[P J P <ppandit () redhat com>]

  Hello,

Linux kernel built with Edgeport USB serial converter driver io_ti, is 
vulnerable to a NULL pointer dereference flaw. It happens if the device is 
disconnected while corresponding /dev/ttyUSB? file is in use.

An unprivileged user could use this flaw to crash the system, resulting DoS.

Upstream fix:
-------------
 -> https://git.kernel.org/linus/1ee0a224bc9aad1de496c795f96bc6ba2c394811

Reference:
----------
 -> https://bugzilla.redhat.com/show_bug.cgi?id=916191

Thank you.
--
Prasad J Pandit / Red Hat Security Response Team
DB7A 84C5 D3F9 7CD1 B5EB  C939 D048 7860 3655 602B