Lock down TIOCSSERIAL
authorDavid Howells <dhowells@redhat.com>
Wed, 5 Apr 2017 16:40:31 +0000 (17:40 +0100)
committerPeter Michael Green <plugwash@raspbian.org>
Wed, 7 Feb 2018 23:32:32 +0000 (23:32 +0000)
commit5ca7fe4fa6f578ad47d98a6c873962d2a2a97b13
tree02778cb6f69914b30d9291737be3d823f00db160
parentefb3cd4619db26deb5fc529eccd98f612b7df16f
Lock down TIOCSSERIAL

Lock down TIOCSSERIAL as that can be used to change the ioport and irq
settings on a serial port.  This only appears to be an issue for the serial
drivers that use the core serial code.  All other drivers seem to either
ignore attempts to change port/irq or give an error.

Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0060-Lock-down-TIOCSSERIAL.patch
drivers/tty/serial/serial_core.c