CVE-2023-53168

MEDIUM EPSS 4.0%
Published Sep 15, 20259mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 15, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥5.16  –  <6.1.22
linuxlinux_kernel*≥6.2  –  <6.2.9
linuxlinux_kernel6.3any
linuxlinux_kernel6.3any
linuxlinux_kernel6.3any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/02d210f434249a7edbc160969b75df030dc6934d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1e8525f37871741a52370627633962f8bdcab15a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8346d21d1d8a63f46f60e6899f4f80b1306acf32
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/02d210f434249a7edbc160969b75df030dc6934d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1e8525f37871741a52370627633962f8bdcab15a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8346d21d1d8a63f46f60e6899f4f80b1306acf32
    Patch