CVE-2026-98579 (GCVE-0-2026-98579)
Vulnerability from cvelistv5
Published
2026-10-18 15:18
Modified
2026-10-19 09:22
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure nfc_genl_llc_sdreq() builds a list of TLV nodes while walking nested netlink attrs, but 3 error paths (nested-attr parse failure, TLV alloc ENOMEM, nfc_llcp_send_snl_sdreq() failure) all skip freeing what was already queued. Route them through a new free_list label, mirroring the SDRES path in the same file which already does this. Harmless on the success path too -- send_snl_sdreq() drains the list as it moves nodes, so it's already empty by the time free_list runs.
References
Impacted products
Vendor Product Version
Linux Linux Version: d9b8d8e19b073096d3609bbd60f82148d128b555
Version: d9b8d8e19b073096d3609bbd60f82148d128b555
Version: d9b8d8e19b073096d3609bbd60f82148d128b555
Version: d9b8d8e19b073096d3609bbd60f82148d128b555
Version: d9b8d8e19b073096d3609bbd60f82148d128b555
Version: d9b8d8e19b073096d3609bbd60f82148d128b555
Version: d9b8d8e19b073096d3609bbd60f82148d128b555
Version: d9b8d8e19b073096d3609bbd60f82148d128b555
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{
  "containers": {
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/nfc/netlink.c"
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              "version": "0",
              "versionType": "semver"
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            {
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              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
        {
          "nodes": [
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              ],
              "negate": false,
              "operator": "OR"
            }
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure\n\nnfc_genl_llc_sdreq() builds a list of TLV nodes while walking nested\nnetlink attrs, but 3 error paths (nested-attr parse failure, TLV alloc\nENOMEM, nfc_llcp_send_snl_sdreq() failure) all skip freeing what was\nalready queued.\n\nRoute them through a new free_list label, mirroring the SDRES path in\nthe same file which already does this. Harmless on the success path\ntoo -- send_snl_sdreq() drains the list as it moves nodes, so it\u0027s\nalready empty by the time free_list runs."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:22:04.617Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5b1eca82085134bd92cd3810b0ef003c91e3f668"
        },
        {
          "url": "https://git.kernel.org/stable/c/d3f60a7fc291d08cd9192a3b4cd5d3a223fa7d02"
        },
        {
          "url": "https://git.kernel.org/stable/c/755bfc409748d8f3df64eb0eb26926270de3dd77"
        },
        {
          "url": "https://git.kernel.org/stable/c/e43ec0191c1630f41e7043ac729ea6f1b8044a7f"
        },
        {
          "url": "https://git.kernel.org/stable/c/08d2c069239ab425fdd333784a6a3b3e034e4aa0"
        },
        {
          "url": "https://git.kernel.org/stable/c/cbde7f5d326172d6dbb55cca0df42fa7e1ed8115"
        },
        {
          "url": "https://git.kernel.org/stable/c/0b01a946b0f234f5badd25968610b585a4895f08"
        },
        {
          "url": "https://git.kernel.org/stable/c/66f4300206b82b0b143ef0d9be90cd8d29f23a47"
        }
      ],
      "title": "nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98579",
    "datePublished": "2026-10-18T15:18:52.611Z",
    "dateReserved": "2026-09-25T10:25:14.358Z",
    "dateUpdated": "2026-10-19T09:22:04.617Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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