CVE-2025-40145 PCI/pwrctrl: Fix double cleanup on devm_add_action_or_reset() failure
A double cleanup error in the Linux kernel PCI power control driver can cause a system crash or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-40145?
CVE-2025-40145 is a memory corruption vulnerability in Linux, published on 12 Nov 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:
PCI/pwrctrl: Fix double cleanup on devm_add_action_or_reset() failure
When devm_add_action_or_reset() fails, it calls the passed cleanup function. Hence the caller must not repeat that cleanup.
Replace the "goto err_regulator_free" by the actual freeing, as there will never be a need again for a second user of this label.
Which versions are affected by CVE-2025-40145?
How do I fix CVE-2025-40145?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-40145 being exploited?
There is no known exploitation of CVE-2025-40145 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2025-40145, DEBIAN-CVE-2025-40145, GHSA-938p-f83v-2x6c, UBUNTU-CVE-2025-40145.