firmware: arm_scmi: Free transport channel on IDR failure (CVE-2026-93089) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-93089

firmware: arm_scmi: Free transport channel on IDR failure

Answer in brief

CVE-2026-93089 records a Unknown severity vulnerability in firmware: arm_scmi: Free transport channel on IDR failure. 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	>=05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1 <ae7980c9af698d0a7e6790d49249abc71f0fc304 \|\| >=05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1 <de0a4c103740cf54cf77370d47e03c9aa51aa5ee \|\| >=05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1 <d7c60c0fe2bd452b56fe07947842d64da61b7290 \|\| >=05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1 <fbaebd380caa4e1cec9306ca00231da6518a123f \|\| >=05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1 <d72e7e5f24687c0490aabf317653caffe0447aeb	ae7980c9af698d0a7e6790d49249abc71f0fc304, de0a4c103740cf54cf77370d47e03c9aa51aa5ee, d7c60c0fe2bd452b56fe07947842d64da61b7290, fbaebd380caa4e1cec9306ca00231da6518a123f, d72e7e5f24687c0490aabf317653caffe0447aeb
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 ae7980c9af698d0a7e6790d49249abc71f0fc304 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: Free transport channel on IDR failure If transport channel setup succeeds but the following IDR insertion fails, the error path destroys the transport device and frees the channel info without invoking the transport cleanup callback. Call chan_free() before destroying the device so transport specific resources such as IRQs, mailbox channels and mapped shared memory are released consistently with the normal teardown path.

Quoted source text, attributed separately from HOL analysis.