platform/x86: dell-wmi-base: Fix handling of ultra performance key (CVE-2026-93129) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-93129

platform/x86: dell-wmi-base: Fix handling of ultra performance key

Answer in brief

CVE-2026-93129 records a Unknown severity vulnerability in platform/x86: dell-wmi-base: Fix handling of ultra performance key. 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 17, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 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	>=5fbd827eb9c224c33a5f263ee543a75fe957faa3 <392c19faec6bf4cb72fb02322e2a61e198dd8f72 \|\| >=5fbd827eb9c224c33a5f263ee543a75fe957faa3 <adfd6846bea13667ff28f8aaf00c32fbd69825ab	392c19faec6bf4cb72fb02322e2a61e198dd8f72, adfd6846bea13667ff28f8aaf00c32fbd69825ab
Linux/Linuxgeneric	5.16	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 392c19faec6bf4cb72fb02322e2a61e198dd8f72 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-wmi-base: Fix handling of ultra performance key The commit message of commit 5fbd827eb9c2 ("platform/x86: dell-wmi: Recognise or support new switches") states that the ultra performance key contains additional data after the type and code fields. The event data passed to dell_wmi_process_key() is already parsed, so "buffer" already starts after those two fields. Use the correct index for accessing the first data field to avoid a potential buffer overread.

Quoted source text, attributed separately from HOL analysis.