{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98637 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98637 is a vulnerability in Linux, published on 18 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-98637 and fix it if it is affected.\n\nWhat it is: CVE-2026-98637 is a vulnerability in Linux, published on 18 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-98637 in the wild and no public exploit code.\n\nAffected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-98637/ (Markdown: https://insights.sbomify.com/CVE-2026-98637/index.md)","id":"CVE-2026-98637","markdown":"https://insights.sbomify.com/CVE-2026-98637/index.md","name":"CVE-2026-98637","record":{"aliases":["BELL-CVE-2026-98637","DEBIAN-CVE-2026-98637","GHSA-j9wj-wgv2-phcm","UBUNTU-CVE-2026-98637"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel KVM","requires_auth":"low_privilege","summary":"A null pointer dereference in KVM arm64 allows a local attacker to cause a denial of service by triggering a guest floating-point access after a failed vCPU initialization.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"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-\u003earch.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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"KVM: arm64: Do not clear VM-wide SVE feature on vCPU init failure","id":"CVE-2026-98637","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"KVM: arm64: Validate the SVE vector length in pkvm_vcpu_init_sve()","id":"CVE-2026-98638"},"packages":[],"prev":{"headline":"squashfs: Add dictionary size range check to prevent shift-out-of-bounds","id":"CVE-2026-98636"},"products":["Linux"],"published":"2026-10-18","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A null pointer dereference in KVM arm64 allows a local attacker to cause a denial of service by triggering a guest floating-point access after a failed vCPU initialization.","url":"https://insights.sbomify.com/CVE-2026-98637/"}