UNKNOWN NVD
CVE-2026-98637
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() cle
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.
References
- https://git.kernel.org/stable/c/a1b3c788ad31837e348075e93dbba3f447492776
- https://git.kernel.org/stable/c/bd46b41f412fb81c50bac1a0929ec31320f3a807
- https://git.kernel.org/stable/c/f0cd8ffae092cc1b9d7cfa9188ed5a88a374adcb
This unknown severity vulnerability was published on 2026-10-18 via NVD.
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