The chase_port function in drivers/usb/serial/io_ti.c in the Linux kernel before 3.7.4 allows local users to cause a denial of service (NULL pointer dereference and system crash) via an attempted /dev/ttyUSB read or write operation on a disconnected Edgeport USB serial converter.
Exploitability
AV:LAC:HAu:NImpact
C:NI:NA:C4/AV:L/AC:H/Au:N/C:N/I:N/A:C