Race condition in Linux kernel - CVE-2026-90084
Published: September 19, 2026
Vulnerability identifier: #VU151405
CSH Severity: Low
CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-90084
CWE-ID: CWE-362
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 a race condition in the octeontx2 VF driver's workqueue and network-device lifecycle when registering or removing a network device. A local user can cause the receive-mode callback to queue work on an uninitialized workqueue to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-90084
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3