{"schema":"threatline.record/2","record":{"id":"CVE-2026-97593","aliases":[],"summary":"iommu/s390: Fix NULL dereference in iova_to_phys() with ZPCI_TABLE_TYPE_RFX","details":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/s390: Fix NULL dereference in iova_to_phys() with ZPCI_TABLE_TYPE_RFX\n\nWhen using a 5-level translation table via ZPCI_TABLE_TYPE_RFX\nget_rso_from_iova() returns NULL when the region-first entry is invalid.\nYet in get_rto_from_iova() the region-second origin rso is not checked\nto be non-NULL before accessing rso[rsx] leading to a NULL pointer\ndereference instead of a NULL return when iova_to_phys() is called on\na unmapped IOVA. Fix this by adding the missing NULL check.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97593","source_modified_at":"2026-10-19T09:09:57.117Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"81244074b518aeb90de5f68e7e825564c29c5c50","lessThan":"d0502ed0a1aae97e2ab7a21545903ba612d9f02e","status":"affected","versionType":"git"},{"version":"81244074b518aeb90de5f68e7e825564c29c5c50","lessThan":"41b5e0ce6801bf04d8fd3bca46e8c393349ebd5c","status":"affected","versionType":"git"},{"version":"81244074b518aeb90de5f68e7e825564c29c5c50","lessThan":"20db6573301e66cd65ebf6c130b6563c69374d9d","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97593","source_modified_at":"2026-10-19T09:09:57.117Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.16","status":"affected"},{"version":"0","lessThan":"6.16","status":"unaffected","versionType":"semver"},{"version":"6.18.53","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.7","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-2026-97593","source_modified_at":"2026-10-19T09:09:57.117Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"41b5e0ce6801bf04d8fd3bca46e8c393349ebd5c","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97593","source_modified_at":"2026-10-19T09:09:57.117Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"20db6573301e66cd65ebf6c130b6563c69374d9d","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00198,"percentile":0.09048,"score_date":"2026-10-23"},"published_at":"2026-09-25T10:22:09.913Z","modified_at":"2026-10-19T09:09:57.117Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-97593","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:09:57.117Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-97593","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/d0502ed0a1aae97e2ab7a21545903ba612d9f02e"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/41b5e0ce6801bf04d8fd3bca46e8c393349ebd5c"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/20db6573301e66cd65ebf6c130b6563c69374d9d"}],"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":"2026-10-19T09:09:57.117Z","content_hash":"196953faf6c8a1ced54644d990d36a76437b8eeb24b8775f901a549c1b74bf47"}}