CVE-2026-64284

설명

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Ensure vendor's exit handler runs before fastpath userspace exits Move the handling of fastpath userspace exits into vendor code to ensure KVM runs vendor specific operations that need to run before userspace gains control of the vCPU. E.g. for VMX (and soon to be for SVM as well), KVM needs to flush the PML buffer prior to exiting to userspace, otherwise any memory written by the final KVM_RUN might never be flagged as dirty. Note, waiting to snapshot CR0 and CR3 until svm_handle_exit() is flawed in general, as t...

영향 제품·버전

제품 Linux

영향 버전 Linux >= f7f39c50edb9d336274371953275e0d3503b9b75 < b3436d9b9b1affe1c3191ac9831308923f5f03c3, >= f7f39c50edb9d336274371953275e0d3503b9b75 < 4ad73ef0e7966ecfe67de0060537b4cb14d9acd4, >= f7f39c50edb9d336274371953275e0d3503b9b75 < f2ca2b5326211bd38490f0497eb583721ce0bbc0, >= f7f39c50edb9d336274371953275e0d3503b9b75 < 0ffedf43910e44b76c2c1db4e9fbf12b268190c1, >= 6.12

수정 버전 Linux · 수정 버전은 공급사 공식자료 확인 필요

기술 정보

CVSS 벡터 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

CWE 미등록