Improper resource shutdown or release in Linux kernel - CVE-2026-46060
Published: May 28, 2026
Vulnerability identifier: #VU132435
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-2026-46060
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 IRQ handler cleanup in the qat driver when handling a device probe failure after partial initialization. A local user can trigger a probe failure after adf_dev_up() partially completes to cause a denial of service.
The issue occurs because IRQ handlers can remain attached while MSI-X vectors are released during devres cleanup.
How to mitigate CVE-2026-46060
Install security update from vendor's repository.