A security issue has been found in the Linux kernel. There is a NULL pointer dereference in kvm_dirty_ring_get() in virt/kvm/dirty_ring.c via a KVM KVM_XEN_HVM_SET_ATTR ioctl when there is no vCPU created.
A security issue has been found in the Linux kernel. There is a NULL pointer dereference in kvm_dirty_ring_get() in virt/kvm/dirty_ring.c via a KVM KVM_XEN_HVM_SET_ATTR ioctl when there is no vCPU created.
https://bugzilla.redhat.com/show_bug.cgi?id=2031194 https://lore.kernel.org/kvm/CAFcO6XOmoS7EacN_n6v4Txk7xL7iqRa2gABg3F7E3Naf5uG94g@mail.gmail.com/T/ https://patchwork.kernel.org/project/kvm/patch/20211121125451.9489-12-dwmw2@infradead.org/
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