Improper resource shutdown or release in Linux kernel - CVE-2026-46292
Published: June 10, 2026
Vulnerability identifier: #VU134238
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-46292
CWE-ID: CWE-404
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 improper resource shutdown in genpd_dev_pm_detach() for virtual devices in the generic PM domain core when detaching a device from a PM domain after attachment through genpd_dev_pm_attach_by_id(). A local user can trigger device detach handling to cause a denial of service.
In worst cases, the issue may result in a NULL pointer dereference in genpd_runtime_suspend().
How to mitigate CVE-2026-46292
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/26735dfdd8930d9ef1fa92e590a9bf77726efdf6
- https://git.kernel.org/stable/c/361518a26e4434e879db6ff43bf364795dcbfbff
- https://git.kernel.org/stable/c/51a7dd9cbae9210335ce398642ecaaa52c939eb5
- https://git.kernel.org/stable/c/707cb5df3eab32ddc52979418f7ace62941e6381
- https://git.kernel.org/stable/c/8d44391a7f29e4601e8243f13498d0219bab2576