NULL pointer dereference in Linux kernel - CVE-2026-45869
Published: May 28, 2026
Vulnerability identifier: #VU132617
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-45869
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a NULL pointer dereference in power_supply_changed() when handling an interrupt before the power_supply handle is allocated and registered. A local user can trigger the vulnerable race condition to cause a denial of service.
The issue is triggered during device probe if an interrupt fires before power_supply registration completes.
How to mitigate CVE-2026-45869
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/39fe0eac6d755ef215026518985fcf8de9360e9e
- https://git.kernel.org/stable/c/3d7b5391bb95505b3581c1fb77150c467ab92864
- https://git.kernel.org/stable/c/438f9a303ea8b55162b2d5376490c2ab3ec165a0
- https://git.kernel.org/stable/c/86183153c299e8bb1839e717286d6c6f39508a59
- https://git.kernel.org/stable/c/93bdf715d33cf5ee01c58e8546c2469c71ce082a
- https://git.kernel.org/stable/c/9b7d77cb046b4487e8e511e04e62b6f416ce845c
- https://git.kernel.org/stable/c/c0def811ad8d642dca9b6d31a198cc39f5f90837
- https://git.kernel.org/stable/c/dfaf235d5a6b60cbf115a14a656946303ad007b7