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.
| Version | Score | Severity | Vector String |
|---|---|---|---|
| 3.1 | 7.9 | High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H |
| Product | Vendor | Version |
|---|---|---|
| Linux | Linux | All versions |
| Linux | Linux | All versions |
| Linux | Linux | Cisco Prime Network Registrar |
| Linux | Linux | n/a |