Linux Kernel kvm_dirty_ring_get() function denial of service vulnerability

Linux kernel is the kernel used by the Linux Foundation’s open source operating system Linux. Linux Kernel kvm_dirty_ring_get() suffers from a function denial of service vulnerability, which is caused by the kvm_dirty_ring() function in virt/kvm/dirty_ring.c without creating a vCPU. dirty_ring() function in virt/kvm/dirty_ring.c suffers from a NULL pointer dereference vulnerability if the vCPU is not created. A locally authenticated attacker can exploit this vulnerability to cause a denial-of-service condition.