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CVE-2025-68354

kernel: regulator: core: Protect regulator_supply_alias_list with regulator_list_mutex

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Severity

Moderate

Red Hat Product Security

6.5

CVSS 3.1

Review impact separately from score.

Published · December 24, 2025

Updated · June 30, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

regulator: core: Protect regulator_supply_alias_list with regulator_list_mutex

regulator_supply_alias_list was accessed without any locking in regulator_supply_alias(), regulator_register_supply_alias(), and regulator_unregister_supply_alias(). Concurrent registration, unregistration and lookups can race, leading to:

1 use-after-free if an alias entry is removed while being read, 2 duplicate entries when two threads register the same alias, 3 inconsistent alias mappings observed by consumers.

Protect all traversals, insertions and deletions on regulator_supply_alias_list with the existing regulator_list_mutex.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.5
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H

CWE-366 · Race Condition within a Thread