CVE-2026-98470 KVM: arm64: Don't WARN on an unknown VM ioctl in protected mode

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Don't WARN on an unknown VM ioctl in protected mode kvmpkvmioctlallowed WARNs when kvmgetcapforkvmioctl doesn't find the ioctl number in vmioctlcaps, and kvmarchvmioctl calls it for every number the generic code doesn...

CVE-2026-98470

The Linux kernel contains a vulnerability in the KVM subsystem on arm64 architectures. The function kvm_pkvm_ioctl_allowed() issues a WARNING when kvm_get_cap_for_kvm_ioctl() fails to find an ioctl number in vm_ioctl_caps[]. Because kvm_arch_vm_ioctl() calls this check for unhandled numbers, an a...