A vulnerability was found in the Linux kernels 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.
The product does not properly “clean up” and remove temporary or supporting resources after they have been used.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | * | 5.14 (including) |
| Linux_kernel | Linux | 5.15 (including) | 5.15 (including) |
| Linux_kernel | Linux | 5.15-rc1 (including) | 5.15-rc1 (including) |
| Linux_kernel | Linux | 5.15-rc2 (including) | 5.15-rc2 (including) |
| Linux_kernel | Linux | 5.15-rc3 (including) | 5.15-rc3 (including) |
| Linux_kernel | Linux | 5.15-rc4 (including) | 5.15-rc4 (including) |
| Linux_kernel | Linux | 5.15-rc5 (including) | 5.15-rc5 (including) |
| Linux_kernel | Linux | 5.15-rc6 (including) | 5.15-rc6 (including) |