Insufficient Control Flow Management in Linux kernel - CVE-2026-43482
Published: May 14, 2026
Vulnerability identifier: #VU131430
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2026-43482
CWE-ID: CWE-691
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Linux kernel
How to mitigate CVE-2026-43482
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3