vulnerability

Red Hat: CVE-2025-37967: kernel: usb: typec: ucsi: displayport: Fix deadlock

Severity
4
CVSS
(AV:L/AC:M/Au:S/C:N/I:N/A:C)
Published
May 20, 2025
Added
Jul 9, 2025
Modified
Jul 10, 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.

Solution

no-fix-redhat-rpm-package
Title
NEW

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