Log in Start free

Vulnerability · Published May 1, 2024 · Assigned by Linux

CVE-2024-27000serial: mxs-auart: add spinlock around changing cts state

High 7.8

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.3%top 74.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.90-1DSA-5680-1
Debian:12linux6.1.90-1DEBIAN-CVE-2024-27000
Debian:13linux6.8.9-1DEBIAN-CVE-2024-27000
Debian:14linux6.8.9-1DEBIAN-CVE-2024-27000
Ubuntu:22.04:LTSlinux5.15.0-116.126UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux6.8.0-38.38UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux6.8.0-38.38USN-6893-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-aws5.15.0-1065.71UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-aws6.8.0-1011.12UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-aws6.8.0-1011.12USN-6893-3
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1011.12~22.04.1UBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-azure5.15.0-1068.77UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-azure6.8.0-1010.10UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-azure6.8.0-1010.10USN-6893-1
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1010.10~22.04.1UBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1068.77.1UBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-gcp5.15.0-1064.72UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-gcp6.8.0-1010.11UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-gcp6.8.0-1010.11USN-6893-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-gke5.15.0-1062.68UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-gke6.8.0-1006.9UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-gke6.8.0-1006.9USN-6893-2
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1048.55UBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-ibm5.15.0-1058.61UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-ibm6.8.0-1008.8UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-ibm6.8.0-1008.8USN-6893-1
Ubuntu:24.04:LTSlinux-intel6.8.0-1007.14UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-intel6.8.0-1007.14USN-6893-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1060.66UBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-kvm5.15.0-1062.67UBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-116.126UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-38.38.1USN-6893-1
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-38.38.1UBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1060.61UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1009.9UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1009.9USN-6893-2
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1009.9~22.04.1UBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1026.26UBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1015.15UBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1008.8USN-6893-1
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1008.8UBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-oracle5.15.0-1063.69UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-oracle6.8.0-1008.8UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-oracle6.8.0-1008.8USN-6918-1
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1008.8~22.04.1UBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-raspi5.15.0-1058.61UBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-raspi6.8.0-1007.7USN-6893-1
Ubuntu:24.04:LTSlinux-raspi6.8.0-1007.7UBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-27000
Ubuntu:24.04:LTSlinux-riscv6.8.0-38.38.1UBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-27000
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1035.39UBUNTU-CVE-2024-27000

Affected products (as reported)

VendorProductVersions
Linux Linux 4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 – before 56434e295bd446142025913bfdf1587f5e1970ad4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 – before 21535ef0ac1945080198fe3e4347ea498205c99a4d90bb147ef6b91f529a21b498ff2b5fdc6785b4 – before 0dc0637e6b16158af85945425821bfd0151adb374d90bb147ef6b91f529a21b498ff2b5fdc6785b4 – before 479244d68f5d94f3903eced52b093c1e01ddb4954d90bb147ef6b91f529a21b498ff2b5fdc6785b4 – before 2c9b943e9924cf1269e44289bc5e60e51b0f52704d90bb147ef6b91f529a21b498ff2b5fdc6785b4 – before 5f40fd6ca2cf0bfbc5a5c9e403dfce8ca899ba374d90bb147ef6b91f529a21b498ff2b5fdc6785b4 – before 94b0e65c75f4af888ab2dd6c90f060f762924e864d90bb147ef6b91f529a21b498ff2b5fdc6785b4 – before 54c4ec5f8c471b7c1137a1f769648549c423c026
Linux Linux 3.18

References