CVE-2025-37967
usb: typec: ucsi: displayport: Fix deadlock
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- 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
References (7)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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