Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Put vmcs12 pages if nested VM-Enter fails due to invalid guest state Put all vmcs12 pages if KVM synthesizes a nested VM-Exit due to invalid guest while emulating VMLAUNCH or VMRESUME. The invalid guest state path doesn't use nested_vmx_vmexit() as that API is intended to be used if and only if L2 is active, and the open coded equivalent neglects to put the vmcs12 pages. Failure to put the vmcs12 pages leaks any pinned pages (and/or mappings) if L1 retries VMLAUNCH/VMRESUME. Note, the !from_vmenter scenario doesn't suffer the same problem, as vmx_get_nested_state_pages() only gets/pins/maps the vmcs12 pages if L2 is active, i.e. if a "full" VM-Exit is guaranteed before KVM will retry getting vmcs12 pages.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
STABLE
| Date | Total | Labels |
|---|
| 2026-08-08 | 6 | Disclosure1General1Patch4 |
| 2026-08-09 | 1 | Patch1 |
| 2026-08-18 | 1 | General1 |
Linux Kernelの脆弱性(CVE-2026-68081〜CVE-2026-68479) #security #vulnerability #セキュリティ #脆弱性 #linux #kernel https://security.sios.jp/vulnerability/kernel-security-vulnerability-20260819/
Post summary
The tweet announces a set of Linux kernel CVEs and links to an external page for more information, but provides no concrete details about PoC, exploits, patches, or active exploitation.
🔴 CVE-2026-64561 (Zapscape) ardından Linux KVM'de yeni bir nVMX açığı daha ortaya çıktı: CVE-2026-68081 Nested VM-Enter işlemi geçersiz guest state nedeniyle başarısız olduğunda "vmcs12" sayfalarının düzgün serbest bırakılmaması sonucu kaynak/sayfa sızıntısına yol açıyor. Özellikle nested virtualization kullanan KVM hostlar için kernel güncellemesi öneriliyor.
Post summary
The text describes a nested‑VM vulnerability in KVM that causes resource leakage and recommends applying a kernel update as a mitigation.
CVE-2026-68081 In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Put vmcs12 pages if nested VM-Enter fails due to invalid guest state Put all vmcs12 p… https://www.cve.org/CVERecord?id=CVE-2026-68081
Post summary
CVE-2026-68081 has been addressed in the Linux kernel, indicating a patch or fix is available, but no PoC or exploit details are provided.
CVE-2026-68081 In the Linux kernel, the following vulnerability has been resolved: KVM https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-68081
Post summary
The brief note indicates that CVE-2026-68081 has been patched in the Linux kernel, with no PoC, exploit tools, or evidence of active exploitation mentioned.
🛠️ CVE-2026-68081 isn’t a data-theft bug—it just makes Intel KVM hoard guest memory after failed nested VM launches. Patch it before “why is the host choking?” becomes your incident report. https://windowsforum.com/security-alerts.84/cve-2026-68081-patch-intel-kvm-nested-vm-memory-leak.442118/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #KernelSecurity #NestedVirtualization #LinuxKvm #IntelVmx https://t.co/bVbrEZa5Hf
Post summary
CVE-2026-68081 causes Intel KVM to hoard guest memory after failed nested VM launches; patching is recommended to avoid host instability.
A new vulnerability with increased severity was disclosed for Linux Kernel (CVE-2026-68081) https://vuldb.com/vuln/387167
Post summary
The text announces a newly disclosed Linux Kernel vulnerability (CVE-2026-68081) with reportedly increased severity, but provides no further technical or actionable details.
🚨*CVE* CVE-2026-68081 In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Put vmcs12 pages if nested VM-Enter fails due to invalid guest state Put all vmcs12 p… https://www.cve.org/CVERecord?id=CVE-2026-68081 ----- Traducción: CVE-2026-68081 En … http://infoflow.cloud`
Post summary
CVE‑2026‑68081, a nested‑virtualization bug in the Linux kernel, has been resolved; the post references the fix but offers no detailed patch or exploit information.
🐧 New Linux KVM vulnerability disclosed CVE-2026-68081 affects Linux KVM nested virtualization. A bug in nVMX handling could leave VMCS12 pages pinned when nested VM entry fails, causing resource leakage if operations are repeatedly retried. 📅 Published: August 8. 🔎 Source: Linux Kernel / Rapid7. #Linux #KVM #Virtualization #CVE #CyberSecurity
Post summary
A new CVE-2026-68081 involving resource leakage in Linux KVM nested virtualization has been disclosed, detailing a bug in nVMX handling that leaves VMCS12 pages pinned during nested VM entry failures.