CVE-2026-97435 (GCVE-0-2026-97435)
Vulnerability from cvelistv5
Published
2026-09-24 16:03
Modified
2026-10-03 10:58
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: dfacc5a23e227cabdff41b6202f510398e90d36b
Version: dfacc5a23e227cabdff41b6202f510398e90d36b
Version: dfacc5a23e227cabdff41b6202f510398e90d36b
Version: dfacc5a23e227cabdff41b6202f510398e90d36b
Version: dfacc5a23e227cabdff41b6202f510398e90d36b
Version: dfacc5a23e227cabdff41b6202f510398e90d36b
Version: dfacc5a23e227cabdff41b6202f510398e90d36b
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{
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      "cpeApplicability": [
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        {
          "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\u0027s 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\u0027s port count.\n\nApply a minimal fix that adds a check to catch this case and adjusts the\nextack message. When cls-\u003ecommon.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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-03T10:58:19.848Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/cfa5274a5dc2a23b957da5dc806d2ac0c7a66af0"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-97435",
    "datePublished": "2026-09-24T16:03:48.116Z",
    "dateReserved": "2026-09-24T14:53:16.869Z",
    "dateUpdated": "2026-10-03T10:58:19.848Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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