Use-after-free in Linux kernel - CVE-2026-45946
Published: May 28, 2026
Vulnerability identifier: #VU132551
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-45946
CWE-ID: CWE-416
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 attacker to cause a denial of service or corrupt memory.
The vulnerability exists due to use-after-free in the ab8500 power supply IRQ handler when handling interrupts during device probe or removal. A local attacker can trigger a race condition involving a stale power_supply handle to cause a denial of service or corrupt memory.
The issue can also occur if an interrupt fires before the power_supply handle has been initialized.
How to mitigate CVE-2026-45946
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/43cbb78ee047b9b12d096d40e3be265969d4c1f8
- https://git.kernel.org/stable/c/46dbda27b028d78087667e8280966b99cec015ca
- https://git.kernel.org/stable/c/551672981fe227122258a25a385a05f5c0746ad6
- https://git.kernel.org/stable/c/709db4b476e254579d9c48ec34d397a41ca0c407
- https://git.kernel.org/stable/c/847eeb6c0efcd76c7def73857cf798a4fcd8f79b
- https://git.kernel.org/stable/c/c4af8a98bb52825a5331ae1d0604c0ea6956ba4b
- https://git.kernel.org/stable/c/f50433f2603def08b21a4bf2fd238687fb5cbde9