{"cve":"CVE-2026-98637","nvd":{"published":"2026-10-18T16:17:16.820","modified":"2026-10-19T10:19:27.947","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Do not clear VM-wide SVE feature on vCPU init failure\n\npkvm_vcpu_init_sve() clears KVM_ARM_VCPU_SVE in kvm->arch.vcpu_features\nwhen it fails, but vcpu_has_sve() tests KVM_ARCH_FLAG_GUEST_HAS_SVE,\nwhich is left set. Later vCPUs on that VM then skip the SVE setup and\nregister with a NULL sve_state, which the guest's first FP access hands\nto sve_load_state().\n\nReturn the error without touching vcpu_features.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/a1b3c788ad31837e348075e93dbba3f447492776","https://git.kernel.org/stable/c/bd46b41f412fb81c50bac1a0929ec31320f3a807","https://git.kernel.org/stable/c/f0cd8ffae092cc1b9d7cfa9188ed5a88a374adcb"],"products":[],"source":"nvd","synced_at":"2026-10-19T23:00:53.604569364+00:00"},"epss":{"cve":"CVE-2026-98637","score":0.00166,"percentile":0.05798,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}