diff options
Diffstat (limited to 'drivers/tty/serial/serial_core.c')
| -rw-r--r-- | drivers/tty/serial/serial_core.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 4223cb496764..c4a414a46c7f 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -22,6 +22,7 @@ #include <linux/serial_core.h> #include <linux/delay.h> #include <linux/mutex.h> +#include <linux/security.h> #include <linux/irq.h> #include <linux/uaccess.h> @@ -862,6 +863,10 @@ static int uart_set_info(struct tty_struct *tty, struct tty_port *port, goto check_and_exit; } + retval = security_locked_down(LOCKDOWN_TIOCSSERIAL); + if (retval && (change_irq || change_port)) + goto exit; + /* * Ask the low level driver to verify the settings. */ @@ -1959,8 +1964,10 @@ uart_get_console(struct uart_port *ports, int nr, struct console *co) * console=<name>,io|mmio|mmio16|mmio32|mmio32be|mmio32native,<addr>,<options> * * The optional form + * * earlycon=<name>,0x<addr>,<options> * console=<name>,0x<addr>,<options> + * * is also accepted; the returned @iotype will be UPIO_MEM. * * Returns 0 on success or -EINVAL on failure |