CVE-2026-98249: arm64: hibernate: pass HVC_SET_VECTORS args to the resume hvc
Published Oct 6, 2026
·Updated
arm64: hibernate: pass HVCSETVECTORS args to the resume hvc
Affected Software
1 affected component
Linux Linux kernel
Event History
Oct 6, 2026
CVE Published
via MITRE·08:45 AM
Data Sourced
via MITRE·08:45 AM
Description
Data Sourced
via NVD·09:18 AM
Description
Oct 7, 2026
Data Sourced
via Microsoft·08:27 AM
DescriptionSeverityWeakness
Frequently Asked Questions
1
Which systems are most likely to encounter this issue?
Affected systems are arm64 Linux kernel systems that resume from hibernation. The reported hang was triggered with CONFIG_PAGE_POISONING=y and the page_poison=on boot parameter.
2
What event triggers the failure?
The failure occurs during resume from hibernation, after the restored kernel's hypervisor stub vectors are reinstalled incorrectly. EL2 can remain pointed at a vectors page that is released immediately after resume, which can lead to a hang.
3
How can administrators identify a potentially affected configuration?
Check whether the system is running an affected arm64 Linux kernel and uses hibernation. Systems built with CONFIG_PAGE_POISONING enabled and booted with page_poison=on match the configuration under which the hang was reported.