firmware: arm_scmi: Roll back partial protocol table registration (CVE-2026-92491) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-92491

firmware: arm_scmi: Roll back partial protocol table registration

Answer in brief

CVE-2026-92491 records a Unknown severity vulnerability in firmware: arm_scmi: Roll back partial protocol table registration. 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	>=41714150f3d148fbcd7a947869c85531b53c50d4 <ee556d118b11c6f5b60a32c1e84f366b336ac7d7 \|\| >=2858f6e5f06440d6b9e9c3f57bc68915344830a9 <3fa8cabd2d8ed80dd0b818ca7fd410b591392ff6 \|\| >=2858f6e5f06440d6b9e9c3f57bc68915344830a9 <456856a34906475fcf4b23879237103770dc7ef2 \|\| >=2858f6e5f06440d6b9e9c3f57bc68915344830a9 <826413b858ea2969e4c3e8197d0065efc47c6343 \|\| >=2858f6e5f06440d6b9e9c3f57bc68915344830a9 <2224b622260ba590ab56ea1585d6bf7610be25b2	ee556d118b11c6f5b60a32c1e84f366b336ac7d7, 3fa8cabd2d8ed80dd0b818ca7fd410b591392ff6, 456856a34906475fcf4b23879237103770dc7ef2, 826413b858ea2969e4c3e8197d0065efc47c6343, 2224b622260ba590ab56ea1585d6bf7610be25b2
Linux/Linuxgeneric	6.9	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to ee556d118b11c6f5b60a32c1e84f366b336ac7d7 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: firmware: arm_scmi: Roll back partial protocol table registration scmi_protocol_table_register() can leave earlier requests registered when a later entry in the same ID table fails. Each request retains a pointer to the driver's ID table, so a failed module load can leave a dangling pointer after the module storage is released. Unrequest only the successfully registered prefix, in reverse order, before returning the failure. Leave the failed entry and the remaining entries untouched because matching requests can be owned by another driver.

Quoted source text, attributed separately from HOL analysis.