CVE-2025-37967

usb: typec: ucsi: displayport: Fix deadlock

State: Published
Severity: Not scored
Published: May 20, 2025
Updated: May 11, 2026
Reserved: Apr 16, 2025

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	af8622f6a585d8d82b11cd7987e082861fd0edd3 to before f4bd982563c2fd41ec9ca6c517c392d759db801cAffected af8622f6a585d8d82b11cd7987e082861fd0edd3 to before f32451ca4cb7dc53f2a0e2e66b84d34162747eb7Affected af8622f6a585d8d82b11cd7987e082861fd0edd3 to before 962ce9028ca6eb450d5c205238a3ee27de9d214dAffected af8622f6a585d8d82b11cd7987e082861fd0edd3 to before 5924b324468845fc795bd76f588f51d7ab4f202dAffected af8622f6a585d8d82b11cd7987e082861fd0edd3 to before 61fc1a8e1e10cc784cab5829930838aaf1d37af5Affected af8622f6a585d8d82b11cd7987e082861fd0edd3 to before 364618c89d4c57c85e5fc51a2446cd939bf57802Affected
LinuxLinux	5.2Affected before 5.2Not affected 5.15.184 through 5.15.Not affected 6.1.140 through 6.1.Not affected 6.6.92 through 6.6.Not affected 6.12.30 through 6.12.Not affected 6.14.7 through 6.14.*Not affected 6.15 and laterNot affected

Product

Versions

LinuxLinux

af8622f6a585d8d82b11cd7987e082861fd0edd3 to before f4bd982563c2fd41ec9ca6c517c392d759db801cAffected
af8622f6a585d8d82b11cd7987e082861fd0edd3 to before f32451ca4cb7dc53f2a0e2e66b84d34162747eb7Affected
af8622f6a585d8d82b11cd7987e082861fd0edd3 to before 962ce9028ca6eb450d5c205238a3ee27de9d214dAffected
af8622f6a585d8d82b11cd7987e082861fd0edd3 to before 5924b324468845fc795bd76f588f51d7ab4f202dAffected
af8622f6a585d8d82b11cd7987e082861fd0edd3 to before 61fc1a8e1e10cc784cab5829930838aaf1d37af5Affected
af8622f6a585d8d82b11cd7987e082861fd0edd3 to before 364618c89d4c57c85e5fc51a2446cd939bf57802Affected

LinuxLinux

5.2Affected
before 5.2Not affected
5.15.184 through 5.15.*Not affected
6.1.140 through 6.1.*Not affected
6.6.92 through 6.6.*Not affected
6.12.30 through 6.12.*Not affected
6.14.7 through 6.14.*Not affected
6.15 and laterNot affected

References

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