CVE-2026-98637None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Do not clear VM-wide SVE feature on vCPU init failure pkvm_vcpu_init_sve() clears KVM_ARM_VCPU_SVE in kvm->arch.vcpu_features when it fails, but vcpu_has_s…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
KVM: arm64: Do not clear VM-wide SVE feature on vCPU init failure
pkvm_vcpu_init_sve() clears KVM_ARM_VCPU_SVE in kvm->arch.vcpu_features when it fails, but vcpu_has_sve() tests KVM_ARCH_FLAG_GUEST_HAS_SVE, which is left set. Later vCPUs on that VM then skip the SVE setup and register with a NULL sve_state, which the guest's first FP access hands to sve_load_state().
Return the error without touching vcpu_features.
Linux >= 5db1bef933427aa467ad89c7b695a84a6b4afe16 < bd46b41f412fb81c50bac1a0929ec31320f3a807Linux >= 5db1bef933427aa467ad89c7b695a84a6b4afe16 < f0cd8ffae092cc1b9d7cfa9188ed5a88a374adcbLinux >= 5db1bef933427aa467ad89c7b695a84a6b4afe16 < a1b3c788ad31837e348075e93dbba3f447492776Linux 6.16Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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