ASoC: hdac_hda: Fix hlink refcount leak on component registration failure (CVE-2026-89944) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89944

ASoC: hdac_hda: Fix hlink refcount leak on component registration failure

Answer in brief

CVE-2026-89944 records a Unknown severity vulnerability in ASoC: hdac_hda: Fix hlink refcount leak on component registration 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 16, 2026Updated Sep 16, 2026Source checked Sep 16, 2026First seen by HOL Sep 16, 2026Material review Sep 16, 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	>=6bae5ea9498926440ffc883f3dbceb0adc65e492 <7eef9ae3b4ef782557526dd8ba0c206f028d8c2f \|\| >=6bae5ea9498926440ffc883f3dbceb0adc65e492 <e8ea01a0457080b0cc7c69c430c0ab65d84dc377 \|\| >=6bae5ea9498926440ffc883f3dbceb0adc65e492 <cb6b0b1a9d5a61ef841739d42c6211094e9c8e2c \|\| >=6bae5ea9498926440ffc883f3dbceb0adc65e492 <6ad4892c4f5cb437a928a02f5b7d37d496aa9268	7eef9ae3b4ef782557526dd8ba0c206f028d8c2f, e8ea01a0457080b0cc7c69c430c0ab65d84dc377, cb6b0b1a9d5a61ef841739d42c6211094e9c8e2c, 6ad4892c4f5cb437a928a02f5b7d37d496aa9268
Linux/Linuxgeneric	4.20	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 7eef9ae3b4ef782557526dd8ba0c206f028d8c2f if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 16, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: ASoC: hdac_hda: Fix hlink refcount leak on component registration failure hdac_hda_dev_probe() gets the HDA link with snd_hdac_ext_bus_link_get() before registering the ASoC component. If component registration fails, the function returns without dropping the link reference. Always call snd_hdac_ext_bus_link_put() after the registration attempt so the reference taken during probe is balanced on both success and failure.

Quoted source text, attributed separately from HOL analysis.