CVE-2025-37967: debian linux — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: displayport: Fix deadlock This patch introduces the ucsi_con_mutex_lock / ucsi_con_mutex_unlock functions to the UCSI driver. ucsi_con_mutex_lock ensures the connector mutex is only locked if a connection is established and the partner pointer is valid. This resolves a deadlock scenario where ucsi_displayport_remove_partner holds con->mutex waiting for dp_altmode_work to complete while dp_altmode_work attempts to acquire it.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-667 CWE-667

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.2 — 5.15.184
linux	linux_kernel	5.16 — 6.1.140
linux	linux_kernel	6.2 — 6.6.92
linux	linux_kernel	6.7 — 6.12.30
linux	linux_kernel	6.13 — 6.14.7
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
debian	debian_linux	All

References

Advisories & Patches

https://git.kernel.org/stable/c/364618c89d4c57c85e5fc51a2446cd939bf57802 https://git.kernel.org/stable/c/5924b324468845fc795bd76f588f51d7ab4f202d https://git.kernel.org/stable/c/61fc1a8e1e10cc784cab5829930838aaf1d37af5 https://git.kernel.org/stable/c/962ce9028ca6eb450d5c205238a3ee27de9d214d https://git.kernel.org/stable/c/f32451ca4cb7dc53f2a0e2e66b84d34162747eb7 https://git.kernel.org/stable/c/f4bd982563c2fd41ec9ca6c517c392d759db801c

Other References

https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html

Frequently Asked Questions

What is CVE-2025-37967? +

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: displayport: Fix deadlock This patch introduces the ucsi_con_mutex_lock / ucsi_con_mutex_unlock functions to the UCSI driver. ucsi_con_mutex_lock ensures the connector mutex is only locked if a connection is established and the partner pointer is valid. This resolves a deadlock scenario where ucsi_displayport_remove_partner holds con->mutex waiting for dp_altmode_work to complete while dp_altmode_work attempts to acquire it. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-37967? +

CVE-2025-37967 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-37967? +

CVE-2025-37967 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-37967? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-37967