fbdev: omapfb: panel-dsi-cm: initialize lock before registering display (CVE-2026-89599) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89599

fbdev: omapfb: panel-dsi-cm: initialize lock before registering display

Answer in brief

CVE-2026-89599 records a Unknown severity vulnerability in fbdev: omapfb: panel-dsi-cm: initialize lock before registering display. 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.

Published Sep 11, 2026Updated Sep 11, 2026Source checked Sep 11, 2026First seen by HOL Sep 11, 2026Material review Sep 11, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

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.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=f76ee892a99e68b55402b8d4b8aeffcae2aff34d <2c3f8c9c995db185284b079f39177e85b2258176 \|\| >=f76ee892a99e68b55402b8d4b8aeffcae2aff34d <76818e81cfcae33b09b739de09162c7d8d89bf0b \|\| >=f76ee892a99e68b55402b8d4b8aeffcae2aff34d <09db79078f25c048cfb5d7849795c70415ab8574 \|\| >=f76ee892a99e68b55402b8d4b8aeffcae2aff34d <f8e43fe0f22b7137ce456e6fe3581d3098174f74	2c3f8c9c995db185284b079f39177e85b2258176, 76818e81cfcae33b09b739de09162c7d8d89bf0b, 09db79078f25c048cfb5d7849795c70415ab8574, f8e43fe0f22b7137ce456e6fe3581d3098174f74
Linux/Linuxgeneric	4.5	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 2c3f8c9c995db185284b079f39177e85b2258176 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 11, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: fbdev: omapfb: panel-dsi-cm: initialize lock before registering display dsicm_probe() registers the display before initializing ddata->lock. Once omapdss_register_display() publishes the display, another consumer can reach a dsicm callback that takes this mutex while it is still uninitialized. Initialize the mutex before registering the display so the published callbacks always see a valid lock.

Quoted source text, attributed separately from HOL analysis.