CVE-2025-71104 KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer When advancing the target expiration for the guest's APIC timer in periodic mode, set the expiration to "now" if the target expiration is in the past...

CVE-2025-71104

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer When advancing the target expiration for the guest's APIC timer in periodic mode, set the expiration to "now" if the target expiration is in the past...

CVE-2025-71104

The CVE-2025-71104 entry concerns the Linux kernel KVM on x86 with the HV timer. Root cause: when advancing the guest APIC timer expiration in periodic mode, adding a period to a past target expiration can create an unbounded sequence of hrtimer IRQs; if the guest is paused, this can trigger host...