CVE-2021-4032

A vulnerability was found in the Linux kernel’s KVM subsystem in
arch/x86/kvm/lapic.c kvm_free_lapic when a failure allocation was detected.
In this flaw the KVM subsystem may crash the kernel due to mishandling of
memory errors that happens during VCPU construction, which allows an
attacker with special user privilege to cause a denial of service. This
flaw affects kernel versions prior to 5.15 rc7.

Bugs

• <https://bugzilla.redhat.com/show_bug.cgi?id=2027403&gt;