{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c"
            },
            {
              "fixed": "6d4c12ab9ab8db87411c863a54e0e97f9197afde"
            },
            {
              "fixed": "ca58afa40946acd252a50fa4d4a86f15847a3d7d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "7.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98004.json"
  },
  "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.",
  "id": "CVE-2026-98004",
  "modified": "2026-09-26T03:30:36.416885714Z",
  "published": "2026-09-25T10:23:31.134Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d4c12ab9ab8db87411c863a54e0e97f9197afde"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca58afa40946acd252a50fa4d4a86f15847a3d7d"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98004.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98004"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "iommu/riscv: Serialize command queue publishing"
}