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nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-98579

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-98579

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
        "lessThan": "5b1eca82085134bd92cd3810b0ef003c91e3f668",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
        "lessThan": "d3f60a7fc291d08cd9192a3b4cd5d3a223fa7d02",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
        "lessThan": "755bfc409748d8f3df64eb0eb26926270de3dd77",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
        "lessThan": "e43ec0191c1630f41e7043ac729ea6f1b8044a7f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
        "lessThan": "08d2c069239ab425fdd333784a6a3b3e034e4aa0",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
        "lessThan": "cbde7f5d326172d6dbb55cca0df42fa7e1ed8115",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
        "lessThan": "0b01a946b0f234f5badd25968610b585a4895f08",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
        "lessThan": "66f4300206b82b0b143ef0d9be90cd8d29f23a47",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/nfc/netlink.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.10"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.10",
        "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": "6.18.55",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.9",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/nfc/netlink.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-98579

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#38598 · Revision 1
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Publisher date
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