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CVE-2026-64220 (GCVE-0-2026-64220)

Vulnerability from cvelistv5 – Published: 2026-07-24 15:23 – Updated: 2026-07-24 15:23
VLAI
Title
device property: set fwnode->secondary to NULL in fwnode_init()
Summary
In the Linux kernel, the following vulnerability has been resolved: device property: set fwnode->secondary to NULL in fwnode_init() If a firmware node is allocated on the stack (for instance: temporary software node whose life-time we control) or on the heap - but using a non-zeroing allocation function - and initialized using fwnode_init(), its secondary pointer will contain uninitalized memory which likely will be neither NULL nor IS_ERR() and so may end up being dereferenced (for example: in dev_to_swnode()). Set fwnode->secondary to NULL on initialization.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 01bb86b380a306bd937c96da36f66429f3362137 , < f0e211d6539fae800217c10797993b7592d6ab01 (git)
Affected: 01bb86b380a306bd937c96da36f66429f3362137 , < 3f1024deeab3b5443c29b3de4fe475e87309b8fa (git)
Affected: 01bb86b380a306bd937c96da36f66429f3362137 , < 371f53925a6714d0aa35f1aefdffc3e8cd62f480 (git)
Affected: 01bb86b380a306bd937c96da36f66429f3362137 , < 34bf74b1fd2e4a44e27821a329204caf09df2976 (git)
Affected: 01bb86b380a306bd937c96da36f66429f3362137 , < 508fd8ab158abd04b7f7d0f707cd6d6c405df4ea (git)
Affected: 01bb86b380a306bd937c96da36f66429f3362137 , < f59e686c778cb41b8f7aa8fab2afd6a01afb3d47 (git)
Affected: 01bb86b380a306bd937c96da36f66429f3362137 , < 215c90ee656114f5e8c32408228d97082f8e0eef (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.142 , ≤ 6.6.* (semver)
Unaffected: 6.12.92 , ≤ 6.12.* (semver)
Unaffected: 6.18.34 , ≤ 6.18.* (semver)
Unaffected: 7.0.11 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-11T20:34:31+00:00",
      "cve": "CVE-2026-64220",
      "id": "CVE-2026-64220",
      "initial_release_date": "2026-07-24T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: device property: set fwnode-\u003esecondary to NULL in fwnode_init()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64220.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T16:29:51Z",
      "cve": "CVE-2026-64220",
      "id": "CVE-2026-64220",
      "initial_release_date": "2026-07-25T00:14:18Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "528",
      "product_status:known_not_affected": "193",
      "product_status:recommended": "250",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64220",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64220.json",
      "version": "9"
    }
  }
}



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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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