CVE-2026-43133

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation Commit cc3ed80ae69f ("KVM: nSVM: always use vmcb01 to for vmsave/vmload of guest state") made KVM always use vmcb01 for the fields controlled by VMSAVE/VMLOAD, but it missed updating the VMLOAD/VMSAVE emulation code to always use vmcb01. As a result, if VMSAVE/VMLOAD is executed by an L2 guest and is not intercepted by L1, KVM will mistakenly use vmcb02. Always use vmcb01 instead of the current VMCB.

• Linux Kernel

  OS
  Linux
  5.13 – 5.15.202 (excl.)5.16 – 6.1.165 (excl.)6.2 – 6.6.128 (excl.)6.7 – 6.12.75 (excl.)6.13 – 6.18.16 (excl.)6.19 – 6.19.6 (excl.)