CVE-2026-46082 KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0
A missing check in the Linux kernel KVM SVM module allows a guest to trigger a denial of service by executing INVLPGA when SVME is disabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-46082?
CVE-2026-46082 is a medium-severity vulnerability in Linux kernel, published on 27 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0
INVLPGA should cause a #UD when EFER.SVME is not set. Add a check to properly inject #UD when EFER.SVME=0.
[sean: tag for stable@]
Which versions are affected by CVE-2026-46082?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-46082?
Apply the vendor's patch.
Is CVE-2026-46082 being exploited?
There is no known exploitation of CVE-2026-46082 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-88584, BELL-CVE-2026-46082, DEBIAN-CVE-2026-46082, GHSA-rm7q-mppc-gxx3, ROOT-OS-DEBIAN-11-CVE-2026-46082, ROOT-OS-DEBIAN-12-CVE-2026-46082 and 3 more.