{"id":"CVE-2026-98470","revision":"f72891feb14c4456859d8013d52936be","records":[{"revision":"f72891feb14c4456859d8013d52936be","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98470","aliases":[],"title":"KVM: arm64: Don't WARN on an unknown VM ioctl in protected mode","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Don't WARN on an unknown VM ioctl in protected mode\n\nkvm_pkvm_ioctl_allowed() WARNs when kvm_get_cap_for_kvm_ioctl() doesn't\nfind the ioctl number in vm_ioctl_caps[], and kvm_arch_vm_ioctl() calls\nit for every number the generic code doesn't handle, so\nioctl(vm_fd, 0xdeadbeef) from userspace taints a pKVM host and panics it\nunder panic_on_warn. The lookup is fed userspace input: return false,\nand userspace gets the -EINVAL kvm_arch_vm_ioctl() returns for that\nnumber on a host without pKVM.","state":0,"publishedAt":"2026-10-18T15:15:22.878+00:00","modifiedAt":"2026-10-19T09:20:08.206+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/arm64/include/asm/kvm_pkvm.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"b12b3b04f6ba072ca5a618a75e546c996be94bd1\",\n                            \"lessThan\": \"cc53eb5c6515e3221314624a22c9da9c80a67f63\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b12b3b04f6ba072ca5a618a75e546c996be94bd1\",\n                            \"lessThan\": \"49d9d295d69d07e850cae35933ba8519e2915f26\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/arm64/include/asm/kvm_pkvm.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7.0\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"7.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.9\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/cc53eb5c6515e3221314624a22c9da9c80a67f63","https://git.kernel.org/stable/c/49d9d295d69d07e850cae35933ba8519e2915f26"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98470","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98470","identifiers":["CVE-2026-98470"]},"retained":false,"historicalAffected":[]}],"coverage":[]}