CVE-2026-46082

KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0

MEDIUM

5.5

CVSS Score

Published: May 27, 2026 at 12:58 PM UTC

Updated: June 27, 2026 at 11:41 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.1%

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@]

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

2.6.32 ≤ v < 5.15.2092.6.32 ≤ v < 6.1.1752.6.32 ≤ v < 6.12.862.6.32 ≤ v < 6.18.272.6.32 ≤ v < 6.6.1402.6.32 ≤ v < 7.0.42.6.32 ≤ v < 7.15.16 ≤ v < 6.1.1756.13 ≤ v < 6.18.276.19 ≤ v < 7.0.46.2 ≤ v < 6.6.1406.7 ≤ v < 6.12.862.6.32ff092385e8285c03d8b148f42f46f98c5f4becd5

Vendor states this is fixed in 3ac9d4241d205f5d0df06358349ca718ebb0fa12 (fixed)

Vendor states this is fixed in 491139c17f8ad5773303068411f6ac5eed438b51 (fixed)

Vendor states this is fixed in 643125b66ffc1147c66616b749475ba9efb15971 (fixed)

Vendor states this is fixed in c15392ed9e49c1a16b4d3a3ccf1b3bf2318a6c28 (fixed)

Vendor states this is fixed in d99df02ff427f461102230f9c5b90a6c64ee8e23 (fixed)

Vendor states this is fixed in ebb63390142c6458fc37758e0892759989cc159f (fixed)

Vendor states this is fixed in ee24928ecd85db4b68ed111e91fef36af0ca37b0 (fixed)

Vendor states this is fixed in 2.6.32 (unaffected)

Vendor states this is fixed in 5.15.209 (unaffected)

Vendor states this is fixed in 6.1.175 (unaffected)

Vendor states this is fixed in 6.12.86 (unaffected)

Vendor states this is fixed in 6.18.27 (unaffected)