{"schema":"threatline.record/2","record":{"id":"CVE-2026-98653","aliases":[],"summary":"KVM: s390: Fix _gaccess_shadow_fault()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: Fix _gaccess_shadow_fault()\n\nIn some circumstances, it is possible that the page of nested guest\nmemory that is being shadowed is not present at all in the parent guest\ngmap. dat_entry_walk() will not find any leaf entry and return with\n-ENOENT, which will erroneously be propagated all the way to userspace.\n\nFix by manually calling gmap_link() on the memory of the nested guest\nthat is being shadowed if the mapping was not already present.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98653","source_modified_at":"2026-10-19T09:23:22.624Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"e38c884df92119d96f652d51f82661dd2fc0b885","lessThan":"94c43c7df46433ed4d1e18f13770b019ba977bd8","status":"affected","versionType":"git"},{"version":"e38c884df92119d96f652d51f82661dd2fc0b885","lessThan":"faff4c8ff3dbec6d71b89dd281a0d17c4478fa44","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98653","source_modified_at":"2026-10-19T09:23:22.624Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"7.0","status":"affected"},{"version":"0","lessThan":"7.0","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"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98653","source_modified_at":"2026-10-19T09:23:22.624Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"94c43c7df46433ed4d1e18f13770b019ba977bd8","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00155,"percentile":0.04314,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:20:24.848Z","modified_at":"2026-10-19T09:23:22.624Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98653","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:23:22.624Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98653","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/94c43c7df46433ed4d1e18f13770b019ba977bd8"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/faff4c8ff3dbec6d71b89dd281a0d17c4478fa44"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:23:22.624Z","content_hash":"132aa2487107bebfbbdde028332a500407a6725937c4ecf033f309293581ed34"}}