Log in Start free

Vulnerability · Published Sep 15, 2025 · Assigned by Linux

CVE-2023-53168usb: ucsi_acpi: Increase the command completion timeout

Medium 5.5

In plain English

A medium-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 0.2% (higher than 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 95.1% 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: usb: ucsi_acpi: Increase the command completion timeout Commit 130a96d698d7 ("usb: typec: ucsi: acpi: Increase command completion timeout value") increased the timeout from 5 seconds to 60 seconds due to issues related to alternate mode discovery. After the alternate mode discovery switch to polled mode the timeout was reduced, but instead of being set back to 5 seconds it was reduced to 1 second. This is causing problems when using a Lenovo ThinkPad X1 yoga gen7 connected over Type-C to a LG 27UL850-W (charging DP over Type-C). When the monitor is already connected at boot the following error is logged: "PPM init failed (-110)", /sys/class/typec is empty and on unplugging the NULL pointer deref fixed earlier in this series happens. When the monitor is connected after boot the following error is logged instead: "GET_CONNECTOR_STATUS failed (-110)". Setting the timeout back to 5 seconds fixes both cases.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.25-1DEBIAN-CVE-2023-53168
Debian:13linux6.1.25-1DEBIAN-CVE-2023-53168
Debian:14linux6.1.25-1DEBIAN-CVE-2023-53168
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-53168
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-53168
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-53168
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2023-53168
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-53168
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-53168
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-53168
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2023-53168
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53168
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53168
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-53168
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2023-53168

Affected products (as reported)

VendorProductVersions
Linux Linux e08065069fc7b074712378a95a3522d557e9bbe1 – before 1e8525f37871741a52370627633962f8bdcab15ae08065069fc7b074712378a95a3522d557e9bbe1 – before 8346d21d1d8a63f46f60e6899f4f80b1306acf32e08065069fc7b074712378a95a3522d557e9bbe1 – before 02d210f434249a7edbc160969b75df030dc6934d
Linux Linux 5.16

References