CVE-2026-46131

Description

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.

References

• https://git.kernel.org/stable/c/45fc766bc756ff1d66f8ca026a9c4f7f764adfae
• https://git.kernel.org/stable/c/464af6fc2b1dcc74005b7f58ee3812b17777efee
• https://git.kernel.org/stable/c/4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57
• https://git.kernel.org/stable/c/971f17f5d91045404e3914029ea57c3da90179a4
• https://git.kernel.org/stable/c/d6f4e217d663ede5becc2fd6cb612c749677387b