ASoC: SOF: ipc4-topology: Return error for invalid number of formats (CVE-2026-93187) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-93187

ASoC: SOF: ipc4-topology: Return error for invalid number of formats

Answer in brief

CVE-2026-93187 records a Unknown severity vulnerability in ASoC: SOF: ipc4-topology: Return error for invalid number of formats. 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	>=21a5adffad463344e9aca6ee697f45a079cb3ef5 <4992cdc4eb97981d6ea66002c5b764a6115edb0c \|\| >=21a5adffad463344e9aca6ee697f45a079cb3ef5 <11e828cd6b0f283ebe9dc6b4cffd38e3321e7725	4992cdc4eb97981d6ea66002c5b764a6115edb0c, 11e828cd6b0f283ebe9dc6b4cffd38e3321e7725
Linux/Linuxgeneric	7.2	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 4992cdc4eb97981d6ea66002c5b764a6115edb0c 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: ASoC: SOF: ipc4-topology: Return error for invalid number of formats When the number of input or output formats is zero, sof_ipc4_widget_setup_comp_src() and sof_ipc4_widget_setup_comp_asrc() print an error and jump to the cleanup label. At that point 'ret' is still 0, because the earlier sof_ipc4_get_audio_fmt() call succeeded, so the function returns success and the caller never finds out that the widget setup actually failed. Set ret to -EINVAL before the goto so the error gets reported.

Quoted source text, attributed separately from HOL analysis.