Race condition in Linux kernel - CVE-2026-43293
Published: May 9, 2026
Vulnerability identifier: #VU130888
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-43293
CWE-ID: CWE-362
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 a race condition in the wave5 driver kthread worker cleanup logic when removing the module in polling mode. A local user can trigger module removal in polling mode to cause a denial of service.
The issue occurs when irq is less than 0 and the hrtimer can queue new work during worker destruction, leading to a kernel warning.
How to mitigate CVE-2026-43293
Install security update from vendor's repository.