A vulnerability was found in the KVM subsystem in arch/x86/kvm/lapic.c kvm_free_lapic when the 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. Reference: https://lkml.org/lkml/2021/9/8/587 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f7d8a19f9a056a05c5c509fa65af472a322abfee
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 2027406]
This was fixed for Fedora with the 5.15 stable kernel rebases.
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