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CVE-2026-98320

Estado: RecibidaSin puntuar—

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

netfilter: flowtable: hold reference on ct until flow is released

nf_ct_put() releases the ct->ext area inmediately, the rcu typesafe semantics also allow to refer to the wrong conntrack from the flowtable datapath. Hold reference on ct until flow is released after rcu grace period.

Add rcu_barrier() on module exit path, to ensure pending flow entries are release before module goes away.

CVSS

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

Probabilidad de explotación (EPSS)

FIRST aún no ha puntuado esta CVE (habitual en CVEs muy recientes o rechazadas).

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)

Mostrar
{
  "id": "CVE-2026-98320",
  "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": "0ff90b6c20340e57616a51ae1a1bf18156d6638a",
              "lessThan": "93ff1594be1aad4da364462dd8db050ebcfda2de",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0ff90b6c20340e57616a51ae1a1bf18156d6638a",
              "lessThan": "eed6997e8dc40593a539fcc722e7ed51b18db86c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0ff90b6c20340e57616a51ae1a1bf18156d6638a",
              "lessThan": "61c6688be282277c6e91ab286a7acd0ae8681ac6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0ff90b6c20340e57616a51ae1a1bf18156d6638a",
              "lessThan": "a43cd2b67b91e943273c913237a7a88c50cdcfbc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0ff90b6c20340e57616a51ae1a1bf18156d6638a",
              "lessThan": "8274cdc5f9c57e17ed77fc4ba76212536c840f25",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0ff90b6c20340e57616a51ae1a1bf18156d6638a",
              "lessThan": "12c1ac230f4ca16e0017b62a963ab75e0b48074f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0ff90b6c20340e57616a51ae1a1bf18156d6638a",
              "lessThan": "d9e6175a3ee48209ee65f294fc567b4e16b29b74",
              "versionType": "git"
            },
            {
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              "version": "0ff90b6c20340e57616a51ae1a1bf18156d6638a",
              "lessThan": "e75a9fa1d44bcbd66ea02e8781bcca6ea4076e0d",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "net/netfilter/nf_flow_table_core.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.16"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.16",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc4",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "net/netfilter/nf_flow_table_core.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-06T09:18:23.957",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/12c1ac230f4ca16e0017b62a963ab75e0b48074f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/61c6688be282277c6e91ab286a7acd0ae8681ac6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8274cdc5f9c57e17ed77fc4ba76212536c840f25",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/93ff1594be1aad4da364462dd8db050ebcfda2de",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a43cd2b67b91e943273c913237a7a88c50cdcfbc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d9e6175a3ee48209ee65f294fc567b4e16b29b74",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e75a9fa1d44bcbd66ea02e8781bcca6ea4076e0d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/eed6997e8dc40593a539fcc722e7ed51b18db86c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: flowtable: hold reference on ct until flow is released\n\nnf_ct_put() releases the ct->ext area inmediately, the rcu typesafe\nsemantics also allow to refer to the wrong conntrack from the flowtable\ndatapath. Hold reference on ct until flow is released after rcu grace\nperiod.\n\nAdd rcu_barrier() on module exit path, to ensure pending flow entries\nare release before module goes away."
    }
  ],
  "lastModified": "2026-10-06T09:18:23.957",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}