CVE-2026-46082 Details
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@]
A vulnerability in the Linux kernel's KVM SVM implementation has been addressed. The issue involved the INVLPGA instruction not properly causing a #UD (undefined) exception when the EFER.SVME flag was not set. The vulnerability existed because the check for EFER.SVME=0 was missing, allowing the INVLPGA instruction to be incorrectly processed. This vulnerability could potentially be exploited in virtualized environments where KVM is used to manage virtual machines.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed. Instructions for upgrading the kernel can be found in the official Linux documentation or through the package manager of the Linux distribution in use.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/3ac9d4241d205f5d0df06358349ca718ebb0fa12 | kernel.org | Patch |
| https://git.kernel.org/stable/c/491139c17f8ad5773303068411f6ac5eed438b51 | kernel.org | Patch |
| https://git.kernel.org/stable/c/643125b66ffc1147c66616b749475ba9efb15971 | kernel.org | Patch |
| https://git.kernel.org/stable/c/c15392ed9e49c1a16b4d3a3ccf1b3bf2318a6c28 | kernel.org | Patch |
| https://git.kernel.org/stable/c/d99df02ff427f461102230f9c5b90a6c64ee8e23 | kernel.org | Patch |
| https://git.kernel.org/stable/c/ebb63390142c6458fc37758e0892759989cc159f | kernel.org | Patch |
| https://git.kernel.org/stable/c/ee24928ecd85db4b68ed111e91fef36af0ca37b0 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 2.6.32, < 5.15.209 >= 5.16, < 6.1.175 >= 6.2, < 6.6.140 >= 6.7, < 6.12.86 >= 6.13, < 6.18.27 >= 6.19, < 7.0.4 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 24, 2026 | Initial Analysis | [email protected] |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 1, 2026 | CVE Modified | kernel.org |
| May 27, 2026 | New CVE Received | kernel.org |