PT-2026-44254 · Linux · Linux

Published 2026-05-28 · Updated 2026-05-28 · CVE-2026-46131

Mitre

In the Linux kernel, the following vulnerability has been resolved:

KVM: x86: check for nEPT/nNPT in slow flush hypercalls

Checking is guest mode(vcpu) is incorrect, because translate nested gpa() is only valid if an L2 guest is running with nested EPT/NPT enabled. Instead use the same condition as translate nested gpa() itself.

Related Identifiers

CVE-2026-46131

Affected Products

Linux

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-46131 · Security Note
• https://git.kernel.org/stable/c/4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57 · Note
• https://git.kernel.org/stable/c/45fc766bc756ff1d66f8ca026a9c4f7f764adfae · Note
• https://git.kernel.org/stable/c/464af6fc2b1dcc74005b7f58ee3812b17777efee · Note
• https://git.kernel.org/stable/c/971f17f5d91045404e3914029ea57c3da90179a4 · Note
• https://git.kernel.org/stable/c/d6f4e217d663ede5becc2fd6cb612c749677387b · Note