Race condition in Linux kernel - CVE-2026-90129
Published: September 19, 2026
Vulnerability identifier: #VU151353
CSH Severity: Low
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-90129
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local privileged user to cause a denial of service.
The vulnerability exists due to improper synchronization in virtio_balloon device shutdown handling when shutting down a virtio balloon device while asynchronous balloon work is armed. A local privileged user can trigger device shutdown while balloon work is armed to cause a denial of service.
Systems configured with panic_on_warn can panic during device shutdown.
Affected software
Linux kernel
How to mitigate CVE-2026-90129
Install security update from vendor's repository.