CVE-2024-46864

in cpuhp_setup_state() a requisite condition of "hyperv_init_cpuhp > 0" for the hyperv case will never be true, and then hv_cpu_die() won't be called on all CPUs and the VP assist page will not be reset. This leads to corruption of the previous VP assist page and ultimately panic if the kexec kernel is using that memory. The hyperv_init_cpuhp condition should be removed entirely.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.