Resource exhaustion in Linux kernel - CVE-2026-90127
Published: September 19, 2026
Vulnerability identifier: #VU151351
CSH Severity: Low
CVSS v4: 4.8 [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]
CVE-ID: CVE-2026-90127
CWE-ID: CWE-400
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause device removal to hang.
The vulnerability exists due to missing timeout handling in virtio RTC alarm request handling when a pending alarm request does not receive a device response during surprise device removal. A local user can issue an alarm request while the virtio device stops responding to cause device removal to hang.
Affected software
Linux kernel
How to mitigate CVE-2026-90127
Install security update from vendor's repository.