{"id":"CVE-2024-27000","summary":"serial: mxs-auart: add spinlock around changing cts state","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nserial: mxs-auart: add spinlock around changing cts state\n\nThe uart_handle_cts_change() function in serial_core expects the caller\nto hold uport-\u003elock. For example, I have seen the below kernel splat,\nwhen the Bluetooth driver is loaded on an i.MX28 board.\n\n    [   85.119255] ------------[ cut here ]------------\n    [   85.124413] WARNING: CPU: 0 PID: 27 at /drivers/tty/serial/serial_core.c:3453 uart_handle_cts_change+0xb4/0xec\n    [   85.134694] Modules linked in: hci_uart bluetooth ecdh_generic ecc wlcore_sdio configfs\n    [   85.143314] CPU: 0 PID: 27 Comm: kworker/u3:0 Not tainted 6.6.3-00021-gd62a2f068f92 #1\n    [   85.151396] Hardware name: Freescale MXS (Device Tree)\n    [   85.156679] Workqueue: hci0 hci_power_on [bluetooth]\n    (...)\n    [   85.191765]  uart_handle_cts_change from mxs_auart_irq_handle+0x380/0x3f4\n    [   85.198787]  mxs_auart_irq_handle from __handle_irq_event_percpu+0x88/0x210\n    (...)","modified":"2026-04-16T04:32:19.508931740Z","published":"2024-05-01T05:28:35.749Z","related":["SUSE-SU-2024:2008-1","SUSE-SU-2024:2019-1","SUSE-SU-2024:2135-1","SUSE-SU-2024:2190-1","SUSE-SU-2024:2203-1","SUSE-SU-2024:2973-1","SUSE-SU-2025:20008-1","SUSE-SU-2025:20028-1","SUSE-SU-2025:20166-1","SUSE-SU-2025:20249-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27000.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0dc0637e6b16158af85945425821bfd0151adb37"},{"type":"WEB","url":"https://git.kernel.org/stable/c/21535ef0ac1945080198fe3e4347ea498205c99a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2c9b943e9924cf1269e44289bc5e60e51b0f5270"},{"type":"WEB","url":"https://git.kernel.org/stable/c/479244d68f5d94f3903eced52b093c1e01ddb495"},{"type":"WEB","url":"https://git.kernel.org/stable/c/54c4ec5f8c471b7c1137a1f769648549c423c026"},{"type":"WEB","url":"https://git.kernel.org/stable/c/56434e295bd446142025913bfdf1587f5e1970ad"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5f40fd6ca2cf0bfbc5a5c9e403dfce8ca899ba37"},{"type":"WEB","url":"https://git.kernel.org/stable/c/94b0e65c75f4af888ab2dd6c90f060f762924e86"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27000.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-27000"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4d90bb147ef6b91f529a21b498ff2b5fdc6785b4"},{"fixed":"56434e295bd446142025913bfdf1587f5e1970ad"},{"fixed":"21535ef0ac1945080198fe3e4347ea498205c99a"},{"fixed":"0dc0637e6b16158af85945425821bfd0151adb37"},{"fixed":"479244d68f5d94f3903eced52b093c1e01ddb495"},{"fixed":"2c9b943e9924cf1269e44289bc5e60e51b0f5270"},{"fixed":"5f40fd6ca2cf0bfbc5a5c9e403dfce8ca899ba37"},{"fixed":"94b0e65c75f4af888ab2dd6c90f060f762924e86"},{"fixed":"54c4ec5f8c471b7c1137a1f769648549c423c026"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-27000.json"}}],"schema_version":"1.7.5"}