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CVE-2026-98637

KVM: arm64: Do not clear VM-wide SVE feature on vCPU init failure

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 5db1bef933427aa467ad89c7b695a84a6b4afe16
Version < bd46b41f412fb81c50bac1a0929ec31320f3a807
Status affected
Version 5db1bef933427aa467ad89c7b695a84a6b4afe16
Version < f0cd8ffae092cc1b9d7cfa9188ed5a88a374adcb
Status affected
Version 5db1bef933427aa467ad89c7b695a84a6b4afe16
Version < a1b3c788ad31837e348075e93dbba3f447492776
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.16
Status affected
Version 0
Version < 6.16
Status unaffected
Version <= 6.18.*
Version 6.18.55
Status unaffected
Version <= 7.2.*
Version 7.2.9
Status unaffected
Version <= *
Version 7.3
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.055
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/bd46b41f412fb81c50bac1a0929ec31320f3a807
https://git.kernel.org/stable/c/f0cd8ffae092cc1b9d7cfa9188ed5a88a374adcb
https://git.kernel.org/stable/c/a1b3c788ad31837e348075e93dbba3f447492776