CVE-2026-23129
- Source
- https://cve.org/CVERecord?id=CVE-2026-23129
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23129.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-23129
- Downstream
- Published
- 2026-02-14T15:09:57.574Z
- Modified
- 2026-02-14T20:05:49.130856Z
- Summary
- dpll: Prevent duplicate registrations
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
dpll: Prevent duplicate registrations
Modify the internal registration helpers dpllxaref_{dpll,pin}_add() to reject duplicate registration attempts.
Previously, if a caller attempted to register the same pin multiple times (with the same ops, priv, and cookie) on the same device, the core silently increments the reference count and return success. This behavior is incorrect because if the caller makes these duplicate registrations then for the first one dpllpinregistration is allocated and for others the associated dpllpinref.refcount is incremented. During the first unregistration the associated dpllpinregistration is freed and for others WARN is fired.
Fix this by updating the logic to return
-EEXISTif a matching registration is found to enforce a strict "register once" policy. - Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23129.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/236a657422a564859dcd0db7bdb486abb21a721a
- https://git.kernel.org/stable/c/dfec0501dba8f4711ef142a6a890e4812b7af88c
- https://git.kernel.org/stable/c/f3ddbaaaaf4d0633b40482f471753f9c71294a4a
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23129.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-23129
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced9431063ad323ac864750aeba4d304389bc42ca4eFixeddfec0501dba8f4711ef142a6a890e4812b7af88cFixed236a657422a564859dcd0db7bdb486abb21a721aFixedf3ddbaaaaf4d0633b40482f471753f9c71294a4a