CVE-2026-90213 (GCVE-0-2026-90213)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:07 – Updated: 2026-09-17 16:07
VLAI
Title
firewire: core: fix memory leak in error path of build_tree()
Summary
In the Linux kernel, the following vulnerability has been resolved: firewire: core: fix memory leak in error path of build_tree() In the error path of build_tree(), node instances can remain in the local linked list when the function returns. Whenever an invalid value is detected in the self ID sequence, each allocated node instance is either an entry in the linked list or an entry in the ports array of its parent node. Therefore, the allocate node instances can be safely released by traversing the linked list from its head. Release the remaining node instances with for_each_fw_node() before returning to the caller.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3038e353cfaf548eb94f02b172b9dbe412abd24c , < 848eaef4d30b385eb074214b7fa58287506158ad (git)
Affected: 3038e353cfaf548eb94f02b172b9dbe412abd24c , < d6037e42aa4dd29bb9d9f67ef438128c5bfe3448 (git)
Affected: 3038e353cfaf548eb94f02b172b9dbe412abd24c , < 6a990e74d4e848f32eda91d69e4f885604fc326d (git)
Affected: 3038e353cfaf548eb94f02b172b9dbe412abd24c , < 05bfb1327dc5fb61528bab31cd8f0c1e4bddec23 (git)
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Linux Linux Affected: 2.6.22
Unaffected: 0 , < 2.6.22 (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/firewire/core-topology.c",
            "drivers/firewire/node-tree-test.c"
          ],
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          "vendor": "Linux",
          "versions": [
            {
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              "version": "3038e353cfaf548eb94f02b172b9dbe412abd24c",
              "versionType": "git"
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      "cpeApplicability": [
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                }
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              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirewire: core: fix memory leak in error path of build_tree()\n\nIn the error path of build_tree(), node instances can remain in the local\nlinked list when the function returns.\n\nWhenever an invalid value is detected in the self ID sequence, each\nallocated node instance is either an entry in the linked list or an\nentry in the ports array of its parent node. Therefore, the allocate\nnode instances can be safely released by traversing the linked list from\nits head.\n\nRelease the remaining node instances with for_each_fw_node() before\nreturning to the caller."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:07:26.756Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/848eaef4d30b385eb074214b7fa58287506158ad"
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        },
        {
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        }
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      "title": "firewire: core: fix memory leak in error path of build_tree()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90213",
    "datePublished": "2026-09-17T16:07:26.756Z",
    "dateReserved": "2026-09-11T19:38:34.793Z",
    "dateUpdated": "2026-09-17T16:07:26.756Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-90213",
      "date": "2026-09-25",
      "epss": "0.00209",
      "percentile": "0.09807"
    },
    "microsoft_vex": {
      "current_release_date": "2026-09-24T02:39:36.000Z",
      "cve": "CVE-2026-90213",
      "id": "msrc_CVE-2026-90213",
      "initial_release_date": "2026-09-19T01:18:01.000Z",
      "product_status:known_affected": "3",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "firewire: core: fix memory leak in error path of build_tree()",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-90213.json",
      "version": "4"
    },
    "nvd": {
      "cve": {
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                    "status": "unaffected",
                    "version": "6.12.110",
                    "versionType": "semver"
                  },
                  {
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                    "version": "6.18.52",
                    "versionType": "semver"
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                    "status": "unaffected",
                    "version": "7.2.6",
                    "versionType": "semver"
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirewire: core: fix memory leak in error path of build_tree()\n\nIn the error path of build_tree(), node instances can remain in the local\nlinked list when the function returns.\n\nWhenever an invalid value is detected in the self ID sequence, each\nallocated node instance is either an entry in the linked list or an\nentry in the ports array of its parent node. Therefore, the allocate\nnode instances can be safely released by traversing the linked list from\nits head.\n\nRelease the remaining node instances with for_each_fw_node() before\nreturning to the caller."
          }
        ],
        "id": "CVE-2026-90213",
        "lastModified": "2026-09-17T17:17:16.533",
        "metrics": {},
        "published": "2026-09-17T17:17:16.533",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.