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CVE-2026-98004

Estado: RecibidaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

iommu/riscv: Serialize command queue publishing

Serialize command queue publishing so software producer state advances only after a command is written and the hardware tail is updated. Wait for hardware consumption outside the queue lock when the command queue is full so other CPUs are not blocked behind a long poll.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-98004",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c",
              "lessThan": "6d4c12ab9ab8db87411c863a54e0e97f9197afde",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c",
              "lessThan": "ca58afa40946acd252a50fa4d4a86f15847a3d7d",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/iommu/riscv/iommu.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.13",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.2.7",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/iommu/riscv/iommu.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-25T11:17:28.637",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/6d4c12ab9ab8db87411c863a54e0e97f9197afde",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ca58afa40946acd252a50fa4d4a86f15847a3d7d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "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."
    }
  ],
  "lastModified": "2026-09-25T11:17:28.637",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}