CVE-2024-27000

In the Linux kernel, the following vulnerability has been resolved: serial:
mxs-auart: add spinlock around changing cts state The
uart_handle_cts_change() function in serial_core expects the caller to hold
uport->lock. For example, I have seen the below kernel splat, when the
Bluetooth driver is loaded on an i.MX28 board. [ 85.119255] ------------[
cut here ]------------ [ 85.124413] WARNING: CPU: 0 PID: 27 at
/drivers/tty/serial/serial_core.c:3453 uart_handle_cts_change+0xb4/0xec [
85.134694] Modules linked in: hci_uart bluetooth ecdh_generic ecc
wlcore_sdio configfs [ 85.143314] CPU: 0 PID: 27 Comm: kworker/u3:0 Not
tainted 6.6.3-00021-gd62a2f068f92 #1 [ 85.151396] Hardware name: Freescale
MXS (Device Tree) [ 85.156679] Workqueue: hci0 hci_power_on [bluetooth]
(…) [ 85.191765] uart_handle_cts_change from
mxs_auart_irq_handle+0x380/0x3f4 [ 85.198787] mxs_auart_irq_handle from
__handle_irq_event_percpu+0x88/0x210 (…)