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 (...)
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to < 56434e295bd446142025913bfdf1587f5e1970adaffected4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to < 21535ef0ac1945080198fe3e4347ea498205c99aaffected4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to < 0dc0637e6b16158af85945425821bfd0151adb37affected4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to < 479244d68f5d94f3903eced52b093c1e01ddb495affected4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to < 2c9b943e9924cf1269e44289bc5e60e51b0f5270affected4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to < 5f40fd6ca2cf0bfbc5a5c9e403dfce8ca899ba37affected4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to < 94b0e65c75f4af888ab2dd6c90f060f762924e86affected4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 to < 54c4ec5f8c471b7c1137a1f769648549c423c026affected
Linux Linux
Default version status: affected
3.18affected0 to < 3.18unaffected4.19.313 to ≤ 4.19.*unaffected5.4.275 to ≤ 5.4.*unaffected5.10.216 to ≤ 5.10.*unaffected5.15.158 to ≤ 5.15.*unaffected6.1.88 to ≤ 6.1.*unaffected6.6.29 to ≤ 6.6.*unaffected6.8.8 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/56434e295bd446142025913bfdf1587f5e1970ad ↗
- https://git.kernel.org/stable/c/21535ef0ac1945080198fe3e4347ea498205c99a ↗
- https://git.kernel.org/stable/c/0dc0637e6b16158af85945425821bfd0151adb37 ↗
- https://git.kernel.org/stable/c/479244d68f5d94f3903eced52b093c1e01ddb495 ↗
- https://git.kernel.org/stable/c/2c9b943e9924cf1269e44289bc5e60e51b0f5270 ↗
- https://git.kernel.org/stable/c/5f40fd6ca2cf0bfbc5a5c9e403dfce8ca899ba37 ↗
- https://git.kernel.org/stable/c/94b0e65c75f4af888ab2dd6c90f060f762924e86 ↗
- https://git.kernel.org/stable/c/54c4ec5f8c471b7c1137a1f769648549c423c026 ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/ ↗