Insufficient Control Flow Management in Linux kernel - CVE-2026-43482
Published: May 14, 2026
Vulnerability identifier: #VU131430
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-2026-43482
CWE-ID: CWE-691
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 control of execution state in sched_ext exit handling when claiming exit and kicking helper work. A local user can trigger scheduler exit handling to cause a denial of service.
The issue can leave helper work unqueued, bypass mode inactive, and tasks no longer dispatched, which can wedge the system.
How to mitigate CVE-2026-43482
Install security update from vendor's repository.