Answer in brief
CVE-2026-23129 records a Unknown severity vulnerability in dpll: Prevent duplicate registrations. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=9431063ad323ac864750aeba4d304389bc42ca4e <dfec0501dba8f4711ef142a6a890e4812b7af88c || >=9431063ad323ac864750aeba4d304389bc42ca4e <236a657422a564859dcd0db7bdb486abb21a721a || >=9431063ad323ac864750aeba4d304389bc42ca4e <f3ddbaaaaf4d0633b40482f471753f9c71294a4a | dfec0501dba8f4711ef142a6a890e4812b7af88c, 236a657422a564859dcd0db7bdb486abb21a721a, f3ddbaaaaf4d0633b40482f471753f9c71294a4a |
| Linux/Linuxgeneric | 6.7 | Not reported |
Published upstream
Feb 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
In the Linux kernel, the following vulnerability has been resolved: dpll: Prevent duplicate registrations Modify the internal registration helpers dpll_xa_ref_{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 dpll_pin_registration is allocated and for others the associated dpll_pin_ref.refcount is incremented. During the first unregistration the associated dpll_pin_registration is freed and for others WARN is fired. Fix this by updating the logic to return `-EEXIST` if a matching registration is found to enforce a strict "register once" policy.
Quoted source text, attributed separately from HOL analysis.