UBUNTU-CVE-2025-37936

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: KVM: Mask PEBSENABLE loaded for guest with vCPU's value. When generating the MSRIA32PEBSENABLE value that will be loaded on VM-Entry to a KVM guest, mask the value with the vCPU's desired PEBSENABLE value...

CVE-2025-37936

CVE-2025-37936 : In the Linux kernel, a KVM/PEBS issue causes guests to have PEBS enabled when the guest does not request it. Root cause: when generating MSR_IA32_PEBS_ENABLE for VM-Entry, the value was only masked against host settings, failing to distinguish guest-owned vs host-owned events, so...