usb: gadget: uvc: Fix null pointer dereference in uvcg_video_init() (CVE-2026-89734) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89734

usb: gadget: uvc: Fix null pointer dereference in uvcg_video_init()

Answer in brief

CVE-2026-89734 records a Unknown severity vulnerability in usb: gadget: uvc: Fix null pointer dereference in uvcg_video_init(). 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	>=f0bbfbd16b3b67106535299d6a9ca3a5565494a6 <dbe2762ae8e543b06c57f1ac6512b02fd3fd09b2 \|\| >=f0bbfbd16b3b67106535299d6a9ca3a5565494a6 <d511e015d06767f52bb18d48371cab6d7cb88433 \|\| >=f0bbfbd16b3b67106535299d6a9ca3a5565494a6 <5b1da38592efdc1a263d4c0353298cba19e9d6fc	dbe2762ae8e543b06c57f1ac6512b02fd3fd09b2, d511e015d06767f52bb18d48371cab6d7cb88433, 5b1da38592efdc1a263d4c0353298cba19e9d6fc
Linux/Linuxgeneric	6.13	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to dbe2762ae8e543b06c57f1ac6512b02fd3fd09b2 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: usb: gadget: uvc: Fix null pointer dereference in uvcg_video_init() In uvcg_video_init(), if kthread_run_worker() fails, the error logged uses uvcg_err(), however, the pointer it uses: video->uvc is not assigned at this point, triggering a null pointer dereference. Fix this by directly using uvc->func which is assigned already.

Quoted source text, attributed separately from HOL analysis.