ASoC: amd: acp-sdw-legacy: Bound DAI link iteration (CVE-2026-74333) | HOL Guard CVE

High · CVSS 8.4CVE-2026-74333

ASoC: amd: acp-sdw-legacy: Bound DAI link iteration

Answer in brief

CVE-2026-74333 records a High severity (CVSS 8.4) vulnerability in ASoC: amd: acp-sdw-legacy: Bound DAI link iteration. 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 8.4
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 8.4. 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	>=2981d9b0789c44b7375e7d599caf71bd843afc9e <1279bdab5fa1f28c168e54215db506e87c6fac1e \|\| >=2981d9b0789c44b7375e7d599caf71bd843afc9e <0230471eef5902207516851dcd47c559571dded2 \|\| >=2981d9b0789c44b7375e7d599caf71bd843afc9e <d49ecdf327cc91062d2f80996a163cf65fda1e60	1279bdab5fa1f28c168e54215db506e87c6fac1e, 0230471eef5902207516851dcd47c559571dded2, d49ecdf327cc91062d2f80996a163cf65fda1e60
Linux/Linuxgeneric	6.13	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 1279bdab5fa1f28c168e54215db506e87c6fac1e 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: amd: acp-sdw-legacy: Bound DAI link iteration create_sdw_dailinks() walks soc_dais until it finds an entry with initialised cleared, but soc_dais is allocated with exactly num_ends entries. If all entries are initialised, the loop reads past the end of the array. This was reported by KASAN: BUG: KASAN: slab-out-of-bounds in mc_probe+0x26b3/0x2774 [snd_acp_sdw_legacy_mach] Read of size 1 Pass the allocated entry count to create_sdw_dailinks() and stop before reading past the array.

Quoted source text, attributed separately from HOL analysis.