CVE-2024-27000

serial: mxs-auart: add spinlock around changing cts state

State: Published
Severity: Not scored
Published: May 1, 2024
Updated: May 11, 2026
Reserved: Feb 19, 2024

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 (...)

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 56434e295bd446142025913bfdf1587f5e1970adAffected 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 21535ef0ac1945080198fe3e4347ea498205c99aAffected 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 0dc0637e6b16158af85945425821bfd0151adb37Affected 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 479244d68f5d94f3903eced52b093c1e01ddb495Affected 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 2c9b943e9924cf1269e44289bc5e60e51b0f5270Affected 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 5f40fd6ca2cf0bfbc5a5c9e403dfce8ca899ba37Affected 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 94b0e65c75f4af888ab2dd6c90f060f762924e86Affected 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 54c4ec5f8c471b7c1137a1f769648549c423c026Affected
LinuxLinux	3.18Affected before 3.18Not affected 4.19.313 through 4.19.Not affected 5.4.275 through 5.4.Not affected 5.10.216 through 5.10.Not affected 5.15.158 through 5.15.Not affected 6.1.88 through 6.1.Not affected 6.6.29 through 6.6.Not affected 6.8.8 through 6.8.*Not affected 6.9 and laterNot affected

Product

Versions

LinuxLinux

4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 56434e295bd446142025913bfdf1587f5e1970adAffected
4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 21535ef0ac1945080198fe3e4347ea498205c99aAffected
4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 0dc0637e6b16158af85945425821bfd0151adb37Affected
4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 479244d68f5d94f3903eced52b093c1e01ddb495Affected
4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 2c9b943e9924cf1269e44289bc5e60e51b0f5270Affected
4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 5f40fd6ca2cf0bfbc5a5c9e403dfce8ca899ba37Affected
4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 94b0e65c75f4af888ab2dd6c90f060f762924e86Affected
4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to before 54c4ec5f8c471b7c1137a1f769648549c423c026Affected

LinuxLinux

3.18Affected
before 3.18Not affected
4.19.313 through 4.19.*Not affected
5.4.275 through 5.4.*Not affected
5.10.216 through 5.10.*Not affected
5.15.158 through 5.15.*Not affected
6.1.88 through 6.1.*Not affected
6.6.29 through 6.6.*Not affected
6.8.8 through 6.8.*Not affected
6.9 and laterNot affected

References

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