CVE-2026-98637: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: 5db1bef933427aa467ad89c7b695a84a6b4afe16 преди bd46b41f412fb81c50bac1a0929ec31320f3a807; 5db1bef933427aa467ad89c7b695a84a6b4afe16 преди f0cd8ffae092cc1b9d7cfa9188ed5a88a374adcb; 5db1bef933427aa467ad89c7b695a84a6b4afe16 преди a1b3c788ad31837e348075e93dbba3f447492776
• Linux Linux: 6.16; преди 6.16; 6.18.55 до 6.18.*; 7.2.9 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-98637
• https://nvd.nist.gov/vuln/detail/CVE-2026-98637
• https://git.kernel.org/stable/c/bd46b41f412fb81c50bac1a0929ec31320f3a807
• https://git.kernel.org/stable/c/f0cd8ffae092cc1b9d7cfa9188ed5a88a374adcb
• https://git.kernel.org/stable/c/a1b3c788ad31837e348075e93dbba3f447492776