{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98637","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.361Z","datePublished":"2026-10-18T15:20:08.157Z","dateUpdated":"2026-10-19T09:23:07.105Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-19T09:23:07.105Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/arm64/kvm/hyp/nvhe/pkvm.c"],"versions":[{"version":"5db1bef933427aa467ad89c7b695a84a6b4afe16","lessThan":"bd46b41f412fb81c50bac1a0929ec31320f3a807","status":"affected","versionType":"git"},{"version":"5db1bef933427aa467ad89c7b695a84a6b4afe16","lessThan":"f0cd8ffae092cc1b9d7cfa9188ed5a88a374adcb","status":"affected","versionType":"git"},{"version":"5db1bef933427aa467ad89c7b695a84a6b4afe16","lessThan":"a1b3c788ad31837e348075e93dbba3f447492776","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/arm64/kvm/hyp/nvhe/pkvm.c"],"versions":[{"version":"6.16","status":"affected"},{"version":"0","lessThan":"6.16","status":"unaffected","versionType":"semver"},{"version":"6.18.55","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.9","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"6.18.55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"7.2.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"7.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/bd46b41f412fb81c50bac1a0929ec31320f3a807"},{"url":"https://git.kernel.org/stable/c/f0cd8ffae092cc1b9d7cfa9188ed5a88a374adcb"},{"url":"https://git.kernel.org/stable/c/a1b3c788ad31837e348075e93dbba3f447492776"}],"title":"KVM: arm64: Do not clear VM-wide SVE feature on vCPU init failure","x_generator":{"engine":"bippy-1.2.0"}}}}