CVE-2026-98470
- Source
- https://cve.org/CVERecord?id=CVE-2026-98470
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98470.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-98470
- Downstream
- Published
- 2026-10-18T15:15:22Z
- Modified
- 2026-10-20T02:30:53Z
- Summary
- KVM: arm64: Don't WARN on an unknown VM ioctl in protected mode
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
KVM: arm64: Don't WARN on an unknown VM ioctl in protected mode
kvm_pkvm_ioctl_allowed() WARNs when kvm_get_cap_for_kvm_ioctl() doesn't find the ioctl number in vm_ioctl_caps[], and kvm_arch_vm_ioctl() calls it for every number the generic code doesn't handle, so ioctl(vm_fd, 0xdeadbeef) from userspace taints a pKVM host and panics it under panic_on_warn. The lookup is fed userspace input: return false, and userspace gets the -EINVAL kvm_arch_vm_ioctl() returns for that number on a host without pKVM.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98470.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/49d9d295d69d07e850cae35933ba8519e2915f26
- https://git.kernel.org/stable/c/cc53eb5c6515e3221314624a22c9da9c80a67f63
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98470.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-98470