The omninet_open function in drivers/usb/serial/omninet.c in the Linux
kernel before 4.10.4 allows local users to cause a denial of service (tty
exhaustion) by leveraging reference count mishandling.
The edge_bulk_in_callback function in drivers/usb/serial/io_ti.c in the
Linux kernel before 4.10.4 allows local users to obtain sensitive
information (in the dmesg ringbuffer and syslog) from uninitialized kernel
memory by using a crafted USB device (posing as an io_ti USB serial device)
to trigger an integer underflow.