CVE-2026-64555
CVE CVE-2026-64555EUVD EUVD-2026-49606Published 2026-07-27T20:10:42.000ZLast changed 2026-08-05T12:43:00.000ZCVSS 8.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Fix SPSR_EL2 restore in kvm_hyp_handle_mops() kvm_hyp_handle_mops() resets the single-step state machine as part of rewinding state for a MOPS exception by modifying vcpu_cpsr() and writing the result directly into hardware. In the case of nested virtualization, vcpu_cpsr() is a synthetic value such that the rest of KVM can deal with vEL2 cleanly. That means the value requires translation before being written into hardware, which is unfortunately missing from the MOPS handler. Fix it by directly modifying SPSR_EL2 and avoiding the synthetic state altogether, which will be resynchronized on the next 'full' exit back to KVM.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 6.12.97; 2de451a329cf662beeba71f63c7f83ee24ca6642 <10a568010e827108d149779908850afaec898846; 2de451a329cf662beeba71f63c7f83ee24ca6642 <884b44256041ec6b2dcbe8e6a67384d26145cba1; 2de451a329cf662beeba71f63c7f83ee24ca6642 <ff1022c3de46753eb7eba2f6efd990569e66ff95; 2de451a329cf662beeba71f63c7f83ee24ca6642 <dd3b237eb7780d65eae296d3d3a70012b6e7a02f; patch: 0; patch: 7.1.5; patch: 7.2-rc4; 6.7; patch: 6.18.40
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
Does this concern one of your customers?
This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.
Try it for 28 daysPatchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.