ASoC: SOF: ipc3-control: Validate size in snd_sof_update_control (CVE-2026-72261) | HOL Guard CVE

High · CVSS 7.8CVE-2026-72261

ASoC: SOF: ipc3-control: Validate size in snd_sof_update_control

Answer in brief

CVE-2026-72261 records a High severity (CVSS 7.8) vulnerability in ASoC: SOF: ipc3-control: Validate size in snd_sof_update_control. 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 Aug 15, 2026Updated Aug 17, 2026Source checked Sep 29, 2026First seen by HOL Aug 15, 2026Material review Aug 17, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.8
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 7.8. 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	>=10f461d79c2d1afb22344986cc1b4631169cf25e <1dc25a3e06364f48c4ef06016852f8b82425151a \|\| >=10f461d79c2d1afb22344986cc1b4631169cf25e <ee781058cd4d71e4449f41cbe6a3b8c59daa2c51 \|\| >=10f461d79c2d1afb22344986cc1b4631169cf25e <ecf67f1302f2080b4d241b973364aacda70ad740 \|\| >=10f461d79c2d1afb22344986cc1b4631169cf25e <d3abaedf6a58469610136d2dace1a85cddf7afcf \|\| >=10f461d79c2d1afb22344986cc1b4631169cf25e <2a591bf6fd41fd14bdae689aafac4a9ee702c23c \|\| >=10f461d79c2d1afb22344986cc1b4631169cf25e <390aa4c9339bb0ec0bc8d554e830faf93ca9d49e	1dc25a3e06364f48c4ef06016852f8b82425151a, ee781058cd4d71e4449f41cbe6a3b8c59daa2c51, ecf67f1302f2080b4d241b973364aacda70ad740, d3abaedf6a58469610136d2dace1a85cddf7afcf, 2a591bf6fd41fd14bdae689aafac4a9ee702c23c, 390aa4c9339bb0ec0bc8d554e830faf93ca9d49e
Linux/Linuxgeneric	5.18	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 1dc25a3e06364f48c4ef06016852f8b82425151a if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 15, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc3-control: Validate size in snd_sof_update_control In snd_sof_update_control(), firmware-provided cdata->num_elems is checked against local_cdata->data->size but never against the actual allocation size. If local_cdata->data->size was previously set to an inconsistent value, the memcpy could write past the allocated buffer. Add a bounds check to ensure num_elems fits within the available space in the ipc_control_data allocation before copying.

Quoted source text, attributed separately from HOL analysis.