CVE-2026-98579 (GCVE-0-2026-98579)

Vulnerability from cvelistv5 – Published: 2026-10-18 15:18 – Updated: 2026-10-19 09:22
VLAI
Title
nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure
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.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6820 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d9b8d8e19b073096d3609bbd60f82148d128b555 , < 5b1eca82085134bd92cd3810b0ef003c91e3f668 (git)
Affected: d9b8d8e19b073096d3609bbd60f82148d128b555 , < d3f60a7fc291d08cd9192a3b4cd5d3a223fa7d02 (git)
Affected: d9b8d8e19b073096d3609bbd60f82148d128b555 , < 755bfc409748d8f3df64eb0eb26926270de3dd77 (git)
Affected: d9b8d8e19b073096d3609bbd60f82148d128b555 , < e43ec0191c1630f41e7043ac729ea6f1b8044a7f (git)
Affected: d9b8d8e19b073096d3609bbd60f82148d128b555 , < 08d2c069239ab425fdd333784a6a3b3e034e4aa0 (git)
Affected: d9b8d8e19b073096d3609bbd60f82148d128b555 , < cbde7f5d326172d6dbb55cca0df42fa7e1ed8115 (git)
Affected: d9b8d8e19b073096d3609bbd60f82148d128b555 , < 0b01a946b0f234f5badd25968610b585a4895f08 (git)
Affected: d9b8d8e19b073096d3609bbd60f82148d128b555 , < 66f4300206b82b0b143ef0d9be90cd8d29f23a47 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.10
Unaffected: 0 , < 3.10 (semver)
Unaffected: 5.10.271 , ≤ 5.10.* (semver)
Unaffected: 5.15.222 , ≤ 5.15.* (semver)
Unaffected: 6.1.189 , ≤ 6.1.* (semver)
Unaffected: 6.6.158 , ≤ 6.6.* (semver)
Unaffected: 6.12.112 , ≤ 6.12.* (semver)
Unaffected: 6.18.55 , ≤ 6.18.* (semver)
Unaffected: 7.2.9 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "descriptions": [
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          "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": {
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
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          "url": "https://git.kernel.org/stable/c/755bfc409748d8f3df64eb0eb26926270de3dd77"
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        },
        {
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    "datePublished": "2026-10-18T15:18:52.611Z",
    "dateReserved": "2026-09-25T10:25:14.358Z",
    "dateUpdated": "2026-10-19T09:22:04.617Z",
    "state": "PUBLISHED"
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      "product_status:known_not_affected": "1",
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      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure",
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          }
        ],
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        "metrics": {},
        "published": "2026-10-18T16:17:10.363",
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        "vulnStatus": "Received"
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      "current_release_date": "2026-10-20T03:49:44+00:00",
      "cve": "CVE-2026-98579",
      "id": "CVE-2026-98579",
      "initial_release_date": "2026-10-18T00:00:00+00:00",
      "product_status:known_not_affected": "277",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98579.json",
      "version": "3"
    }
  }
}



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