ACPI: scan: fix bus ID cleanup on device_add() failures (CVE-2026-90194) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-90194

ACPI: scan: fix bus ID cleanup on device_add() failures

Answer in brief

CVE-2026-90194 records a Unknown severity vulnerability in ACPI: scan: fix bus ID cleanup on device_add() failures. 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	>=d783156ea38431b20af0d4f910a6f9f9054d33b9 <8cc2017aa804f157e717b5fd471e50fbddfec654 \|\| >=d783156ea38431b20af0d4f910a6f9f9054d33b9 <f30379b8a4e24623594235dd5aefb2957e0cc228 \|\| >=d783156ea38431b20af0d4f910a6f9f9054d33b9 <83ee65feadc88de681abc6e977d54eceda95abd7 \|\| >=d783156ea38431b20af0d4f910a6f9f9054d33b9 <15512c6b5dea72fb5f1f41c1aa96f3f32531ca03 \|\| >=d783156ea38431b20af0d4f910a6f9f9054d33b9 <0b9053cd0955c7cd66d71a8442be33926d70e197 \|\| >=d783156ea38431b20af0d4f910a6f9f9054d33b9 <a414485ebc2aa50907d0ce97cde2b1a353696897	8cc2017aa804f157e717b5fd471e50fbddfec654, f30379b8a4e24623594235dd5aefb2957e0cc228, 83ee65feadc88de681abc6e977d54eceda95abd7, 15512c6b5dea72fb5f1f41c1aa96f3f32531ca03, 0b9053cd0955c7cd66d71a8442be33926d70e197, a414485ebc2aa50907d0ce97cde2b1a353696897
Linux/Linuxgeneric	3.14	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 8cc2017aa804f157e717b5fd471e50fbddfec654 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: ACPI: scan: fix bus ID cleanup on device_add() failures When device_add() fails after acpi_device_set_name() has allocated an instance ID and a new acpi_device_bus_id has been linked into acpi_bus_id_list, the rollback path only removes wakeup_list and detaches the ACPI handle data. That leaves the bus-ID bookkeeping behind and keeps the allocated instance number consumed. Move the bus-ID cleanup and wakeup-list removal into a single helper. Use it from both the normal device teardown path and the device_add() rollback path. The wakeup list node is initialized before registration, so it can be deleted without checking whether the device is wakeup- capable like in the original teardown path. [ rjw: Rename acpi_device_del_list() to acpi_device_cleanup() ] [ rjw: Subject and changelog edits ]

Quoted source text, attributed separately from HOL analysis.