Lock down TIOCSSERIAL
authorDavid Howells <dhowells@redhat.com>
Wed, 5 Apr 2017 16:40:31 +0000 (17:40 +0100)
committerSalvatore Bonaccorso <carnil@debian.org>
Sun, 15 Oct 2017 06:57:36 +0000 (07:57 +0100)
commit966c82384fd2bd4ebcd870ec1be88f55b363cbe4
tree6acb0e1c16d83d3abf6302f5f6c397cfabadb2ac
parent6046a11d3431a5e190e4e3b7f7e960eaae4f1078
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