fbdev: uvesafb: unregister connector callback on init failure (CVE-2026-89597) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89597

fbdev: uvesafb: unregister connector callback on init failure

Answer in brief

CVE-2026-89597 records a Unknown severity vulnerability in fbdev: uvesafb: unregister connector callback on init failure. 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	>=8bdb3a2d7df48b861972c4bfb58490853a228f51 <9f8a822b44c42502f105cf6574f4867067eecdd0 \|\| >=8bdb3a2d7df48b861972c4bfb58490853a228f51 <466a8af0dee2cf745307155e26884e19a37b7e15 \|\| >=8bdb3a2d7df48b861972c4bfb58490853a228f51 <9e768ae51426af2034d479133cfd73010d641b1a \|\| >=8bdb3a2d7df48b861972c4bfb58490853a228f51 <de8db23aa7c337e606fca9faf48b3ba72968597a	9f8a822b44c42502f105cf6574f4867067eecdd0, 466a8af0dee2cf745307155e26884e19a37b7e15, 9e768ae51426af2034d479133cfd73010d641b1a, de8db23aa7c337e606fca9faf48b3ba72968597a
Linux/Linuxgeneric	2.6.24	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 9f8a822b44c42502f105cf6574f4867067eecdd0 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: uvesafb: unregister connector callback on init failure uvesafb_init() registers the v86d connector callback before registering the platform driver. If platform_driver_register() fails, the function returns the error directly and leaves the connector callback registered. The later platform-device failure path already unregisters the callback. Add the same cleanup before the final return when platform-driver registration fails. This issue was identified during our ongoing static-analysis research while reviewing kernel code.

Quoted source text, attributed separately from HOL analysis.