CVE-2026-64220 (GCVE-0-2026-64220)
Vulnerability from cvelistv5 – Published: 2026-07-24 15:23 – Updated: 2026-07-24 15:23
VLAI
EPSS
VEX
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)
Assigner
References
7 references
Impacted products
2 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 | |
| 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 |
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"cve": "CVE-2026-64220",
"id": "CVE-2026-64220",
"initial_release_date": "2026-07-24T00:00:00+00:00",
"product_status:known_affected": "232",
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"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",
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}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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