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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/364618c89d4c57c85e5fc51a2446cd939bf57802	Patch
https://git.kernel.org/stable/c/5924b324468845fc795bd76f588f51d7ab4f202d	Patch
https://git.kernel.org/stable/c/61fc1a8e1e10cc784cab5829930838aaf1d37af5	Patch
https://git.kernel.org/stable/c/962ce9028ca6eb450d5c205238a3ee27de9d214d	Patch
https://git.kernel.org/stable/c/f32451ca4cb7dc53f2a0e2e66b84d34162747eb7	Patch
https://git.kernel.org/stable/c/f4bd982563c2fd41ec9ca6c517c392d759db801c	Patch
https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.15:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.15:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.15:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.15:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.15:rc5::::::

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-05-20 17:15

Updated : 2025-12-16 20:30

NVD link : CVE-2025-37967

Mitre link : CVE-2025-37967

CVE.ORG link : CVE-2025-37967

JSON object : View

Products Affected

debian

debian_linux

linux

linux_kernel

CWE

CWE-667

Improper Locking

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This resolves a deadlock scenario where\nucsi_displayport_remove_partner holds con->mutex waiting for\ndp_altmode_work to complete while dp_altmode_work attempts to acquire it."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: typec: ucsi: displayport: Correcci\u00f3n de interbloqueo. Este parche incorpora las funciones ucsi_con_mutex_lock y ucsi_con_mutex_unlock al controlador UCSI. ucsi_con_mutex_lock garantiza que el mutex del conector solo se bloquee si se establece una conexi\u00f3n y el puntero del asociado es v\u00e1lido. Esto resuelve un escenario de interbloqueo donde ucsi_displayport_remove_partner mantiene con->mutex esperando a que dp_altmode_work complete su ejecuci\u00f3n mientras dp_altmode_work intenta adquirirlo."}], "lastModified": "2025-12-16T20:30:17.833", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "06266B56-FC7F-486B-A2C8-3F1336E6BCA3", "versionEndExcluding": "5.15.184", "versionStartIncluding": "5.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EEA541CD-1863-4E7F-85F5-EAC305910323", "versionEndExcluding": "6.1.140", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7787FD66-D748-44AF-A052-DE495E1E23AE", "versionEndExcluding": "6.6.92", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8F43EF2E-9448-4BCA-99D9-DAEAEB7523C5", "versionEndExcluding": "6.12.30", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5715A6F5-A34A-4B27-8A64-82825E963995", "versionEndExcluding": "6.14.7", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8D465631-2980-487A-8E65-40AE2B9F8ED1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4C9D071F-B28E-46EC-AC61-22B913390211"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "13FC0DDE-E513-465E-9E81-515702D49B74"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8C7B5B0E-4EEB-48F5-B4CF-0935A7633845"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2D240580-3048-49B2-9E27-F115A9DF8224"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}