CVE-2024-27000
Description
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 (...)
How to fix
- linux linux_kernel4.19.313, 5.4.275, 5.10.216, 5.15.158, 6.1.88, 6.6.29, 6.8.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 3.18 ≤ v < 4.19.313, 4.20 ≤ v < 5.4.275, 5.5 ≤ v < 5.10.216, 5.11 ≤ v < 5.15.158, 5.16 ≤ v < 6.1.88, 6.2 ≤ v < 6.6.29, 6.7 ≤ v < 6.8.8, 6.9 | 4.19.313, 5.4.275, 5.10.216, 5.15.158, 6.1.88, 6.6.29, 6.8.8 |
| debian debian_linux | 10.0 | — |
| fedoraproject fedora | 38, 39, 40 | — |
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