CVE-2026-64220device property: set fwnode->secondary to NULL in fwnode_init()
- 5.5MediumCVSS base score
- 0.12%Exploitation in 30 daysEPSS · top 98% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 5 days later
· 5 days later
Published
- 4 months later
· 4 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.12% · top 98% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 01bb86b380a306bd937c96da36f66429f3362137 – < f0e211d6539fae800217c10797993b7592d6ab01
- affected 01bb86b380a306bd937c96da36f66429f3362137 – < 3f1024deeab3b5443c29b3de4fe475e87309b8fa
- affected 01bb86b380a306bd937c96da36f66429f3362137 – < 371f53925a6714d0aa35f1aefdffc3e8cd62f480
- affected 01bb86b380a306bd937c96da36f66429f3362137 – < 34bf74b1fd2e4a44e27821a329204caf09df2976
- affected 01bb86b380a306bd937c96da36f66429f3362137 – < 508fd8ab158abd04b7f7d0f707cd6d6c405df4ea
- affected 01bb86b380a306bd937c96da36f66429f3362137 – < f59e686c778cb41b8f7aa8fab2afd6a01afb3d47
- affected 01bb86b380a306bd937c96da36f66429f3362137 – < 215c90ee656114f5e8c32408228d97082f8e0eef
- affected 5.11
- unaffected < 5.11
- unaffected 5.15.209 – ≤ 5.15.*
- unaffected 6.1.175 – ≤ 6.1.*
- unaffected 6.6.142 – ≤ 6.6.*
- unaffected 6.12.92 – ≤ 6.12.*
- unaffected 6.18.34 – ≤ 6.18.*
- unaffected 7.0.11 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References7
- https://git.kernel.org/stable/c/f0e211d6539fae800217c10797993b7592d6ab01 (opens in a new tab)
- https://git.kernel.org/stable/c/3f1024deeab3b5443c29b3de4fe475e87309b8fa (opens in a new tab)
- https://git.kernel.org/stable/c/371f53925a6714d0aa35f1aefdffc3e8cd62f480 (opens in a new tab)
- https://git.kernel.org/stable/c/34bf74b1fd2e4a44e27821a329204caf09df2976 (opens in a new tab)
- https://git.kernel.org/stable/c/508fd8ab158abd04b7f7d0f707cd6d6c405df4ea (opens in a new tab)
- https://git.kernel.org/stable/c/f59e686c778cb41b8f7aa8fab2afd6a01afb3d47 (opens in a new tab)
- https://git.kernel.org/stable/c/215c90ee656114f5e8c32408228d97082f8e0eef (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-48628 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-64220)Record last updated .