{"api_version":"1","generated_at":"2026-10-04T10:52:59+00:00","cve":"CVE-2026-98004","urls":{"html":"https://cve.report/CVE-2026-98004","api":"https://cve.report/api/cve/CVE-2026-98004.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98004","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98004"},"summary":{"title":"iommu/riscv: Serialize command queue publishing","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-25 11:17:28","updated_at":"2026-09-25 11:17:28"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/ca58afa40946acd252a50fa4d4a86f15847a3d7d","name":"https://git.kernel.org/stable/c/ca58afa40946acd252a50fa4d4a86f15847a3d7d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6d4c12ab9ab8db87411c863a54e0e97f9197afde","name":"https://git.kernel.org/stable/c/6d4c12ab9ab8db87411c863a54e0e97f9197afde","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98004","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98004","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c 6d4c12ab9ab8db87411c863a54e0e97f9197afde git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c ca58afa40946acd252a50fa4d4a86f15847a3d7d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.13","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.13 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.7 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"98004","cve":"CVE-2026-98004","epss":"0.001550000","percentile":"0.039750000","score_date":"2026-09-27","updated_at":"2026-09-28 00:02:24"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/iommu/riscv/iommu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6d4c12ab9ab8db87411c863a54e0e97f9197afde","status":"affected","version":"856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c","versionType":"git"},{"lessThan":"ca58afa40946acd252a50fa4d4a86f15847a3d7d","status":"affected","version":"856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iommu/riscv/iommu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.13"},{"lessThan":"6.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.7","versionStartIncluding":"6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc3","versionStartIncluding":"6.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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."}],"providerMetadata":{"dateUpdated":"2026-09-25T10:23:31.134Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/6d4c12ab9ab8db87411c863a54e0e97f9197afde"},{"url":"https://git.kernel.org/stable/c/ca58afa40946acd252a50fa4d4a86f15847a3d7d"}],"title":"iommu/riscv: Serialize command queue publishing","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98004","datePublished":"2026-09-25T10:23:31.134Z","dateReserved":"2026-09-25T10:19:56.068Z","dateUpdated":"2026-09-25T10:23:31.134Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-25 11:17:28","lastModifiedDate":"2026-09-25 11:17:28","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98004","Ordinal":"1","Title":"iommu/riscv: Serialize command queue publishing","CVE":"CVE-2026-98004","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98004","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"iommu/riscv: Serialize command queue publishing"}]}}}