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CVE-2026-97435

Estado: RecibidaSin puntuar—

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

net: dsa: sja1105: flower: reject cross-chip redirect

dsa_port_from_netdev() may return a valid port from a different switch chip. Programming another chip's port index into the local hardware causes redirection to the wrong port, or an out-of-bounds access if the index exceeds the local chip's port count.

Apply a minimal fix that adds a check to catch this case and adjusts the extack message. When cls->common.skip_sw is not set, the operation could instead redirect to the upstream port and let the software or upstream switch(es) handle the forward, but that is not addressed here.

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-2026-97435",
  "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": "dfacc5a23e227cabdff41b6202f510398e90d36b",
              "lessThan": "6bf5158af52a5293e9160d8f2992c629ca14aa7d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
              "lessThan": "277f8611e017d3ff1ab06af58a6c538b55da1cc8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
              "lessThan": "eb177aa00c392de3dc530c34f173a962216f82dd",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
              "lessThan": "d0e54098c072b6064cdcf8039075ada8b88583da",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
              "lessThan": "c999cc39775381b68ed66eae57c1425452672c0f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
              "lessThan": "abd7511e12b231798332afa04ed9bee9e84f9445",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "dfacc5a23e227cabdff41b6202f510398e90d36b",
              "lessThan": "cfa5274a5dc2a23b957da5dc806d2ac0c7a66af0",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/dsa/sja1105/sja1105_flower.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.8"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.8",
              "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": "6.12.111",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/dsa/sja1105/sja1105_flower.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-24T17:17:21.573",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/277f8611e017d3ff1ab06af58a6c538b55da1cc8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6bf5158af52a5293e9160d8f2992c629ca14aa7d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/abd7511e12b231798332afa04ed9bee9e84f9445",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c999cc39775381b68ed66eae57c1425452672c0f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/cfa5274a5dc2a23b957da5dc806d2ac0c7a66af0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d0e54098c072b6064cdcf8039075ada8b88583da",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/eb177aa00c392de3dc530c34f173a962216f82dd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: sja1105: flower: reject cross-chip redirect\n\ndsa_port_from_netdev() may return a valid port from a different switch\nchip. Programming another chip's port index into the local hardware\ncauses redirection to the wrong port, or an out-of-bounds access if the\nindex exceeds the local chip's port count.\n\nApply a minimal fix that adds a check to catch this case and adjusts the\nextack message. When cls->common.skip_sw is not set, the operation could\ninstead redirect to the upstream port and let the software or upstream\nswitch(es) handle the forward, but that is not addressed here."
    }
  ],
  "lastModified": "2026-10-03T11:17:54.967",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}