firmware: arm_scmi: Unrequest devices if driver registration fails (CVE-2026-92490) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-92490

firmware: arm_scmi: Unrequest devices if driver registration fails

Answer in brief

CVE-2026-92490 records a Unknown severity vulnerability in firmware: arm_scmi: Unrequest devices if driver registration fails. 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	>=d3cd7c525fd2ecce3a6c963f314969a54783d211 <524e57035af2d32498af9dd8fa6fdc92fcc8f80a \|\| >=d3cd7c525fd2ecce3a6c963f314969a54783d211 <06e65e07a1bcb39a1ebc8bb89a981f8e07900497 \|\| >=d3cd7c525fd2ecce3a6c963f314969a54783d211 <a76b20b1f03099204db29b90e1024fe1c2b2cdd7 \|\| >=d3cd7c525fd2ecce3a6c963f314969a54783d211 <4520d4a1db37198756ad23568e36cdf091b6ffff \|\| >=d3cd7c525fd2ecce3a6c963f314969a54783d211 <9f7cd6a62aa754ed6b48cbd5d50de40add1bcc86	524e57035af2d32498af9dd8fa6fdc92fcc8f80a, 06e65e07a1bcb39a1ebc8bb89a981f8e07900497, a76b20b1f03099204db29b90e1024fe1c2b2cdd7, 4520d4a1db37198756ad23568e36cdf091b6ffff, 9f7cd6a62aa754ed6b48cbd5d50de40add1bcc86
Linux/Linuxgeneric	6.3	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 524e57035af2d32498af9dd8fa6fdc92fcc8f80a 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: Unrequest devices if driver registration fails scmi_driver_register() requests protocol devices before registering the driver. If driver_register() fails, those requests remain in the global IDR and retain pointers to the module's ID table. Once the failed module load releases that storage, later request matching or SCMI device creation can dereference the stale pointers. Unrequest the complete protocol table before returning the registration failure. At this point table registration succeeded, so every entry is owned by the current registration attempt.

Quoted source text, attributed separately from HOL analysis.