{"schema":"threatline.record/2","record":{"id":"CVE-2026-98004","aliases":[],"summary":"iommu/riscv: Serialize command queue publishing","details":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/riscv: Serialize command queue publishing\n\nSerialize command queue publishing so software producer state advances only\nafter a command is written and the hardware tail is updated. Wait for\nhardware consumption outside the queue lock when the command queue is full\nso other CPUs are not blocked behind a long poll.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98004","source_modified_at":"2026-10-19T09:12:09.901Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c","lessThan":"787405e9e7bdc53ea7e063fe7b855171b4bd0e91","status":"affected","versionType":"git"},{"version":"856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c","lessThan":"6d4c12ab9ab8db87411c863a54e0e97f9197afde","status":"affected","versionType":"git"},{"version":"856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c","lessThan":"ca58afa40946acd252a50fa4d4a86f15847a3d7d","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98004","source_modified_at":"2026-10-19T09:12:09.901Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.13","status":"affected"},{"version":"0","lessThan":"6.13","status":"unaffected","versionType":"semver"},{"version":"6.18.57","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-2026-98004","source_modified_at":"2026-10-19T09:12:09.901Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"787405e9e7bdc53ea7e063fe7b855171b4bd0e91","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98004","source_modified_at":"2026-10-19T09:12:09.901Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"6d4c12ab9ab8db87411c863a54e0e97f9197afde","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00166,"percentile":0.05519,"score_date":"2026-10-23"},"published_at":"2026-09-25T10:23:31.134Z","modified_at":"2026-10-19T09:12:09.901Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98004","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:12:09.901Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98004","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/787405e9e7bdc53ea7e063fe7b855171b4bd0e91"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/6d4c12ab9ab8db87411c863a54e0e97f9197afde"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/ca58afa40946acd252a50fa4d4a86f15847a3d7d"}],"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":"2026-10-19T09:12:09.901Z","content_hash":"c6affe3e3661f397ad0cf3f2db2ad2e3a08aadde2bf4aa83f2099e2d0c33bfd4"}}