CVE-2025-68354 regulator: core: Protect regulator_supply_alias_list with regulator_list_mutex
A race condition in the Linux kernel regulator core allows local attackers to trigger use-after-free or data corruption, potentially leading to privilege escalation or system crashes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-68354?
CVE-2025-68354 is a vulnerability in Linux, published on 24 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2025-68354?
How do I fix CVE-2025-68354?
Apply the vendor's patch.
Is CVE-2025-68354 being exploited?
There is no known exploitation of CVE-2025-68354 in the wild and no public exploit code.
Sources
Also known as AZL-73060, BELL-CVE-2025-68354, DEBIAN-CVE-2025-68354, GHSA-w3pp-fgmq-x8x8, ROOT-OS-DEBIAN-11-CVE-2025-68354, ROOT-OS-DEBIAN-12-CVE-2025-68354 and 3 more.