ASoC: SOF: ipc3-control: Use overflow checks in control_update size calc (CVE-2026-72302) | HOL Guard CVE

High · CVSS 7.8CVE-2026-72302

ASoC: SOF: ipc3-control: Use overflow checks in control_update size calc

Answer in brief

CVE-2026-72302 records a High severity (CVSS 7.8) vulnerability in ASoC: SOF: ipc3-control: Use overflow checks in control_update size calc. 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 <6856b3c23b0995eefad5a6142b4365ef70e1fe4a \|\| >=10f461d79c2d1afb22344986cc1b4631169cf25e <89a2309a9eec80d4c19e3aed62c4f923594d1911 \|\| >=10f461d79c2d1afb22344986cc1b4631169cf25e <ffd79e77f2fbacd7a5d40ad1d4c7f3f089a8f2f3 \|\| >=10f461d79c2d1afb22344986cc1b4631169cf25e <711d912b18763af62a63aa8f2419a774eb63bba4 \|\| >=10f461d79c2d1afb22344986cc1b4631169cf25e <312c7d2ebe696da3f885eee77d52297664e57c53 \|\| >=10f461d79c2d1afb22344986cc1b4631169cf25e <8791977d7289f6e9d2b014f60a5455f053a7bc04	6856b3c23b0995eefad5a6142b4365ef70e1fe4a, 89a2309a9eec80d4c19e3aed62c4f923594d1911, ffd79e77f2fbacd7a5d40ad1d4c7f3f089a8f2f3, 711d912b18763af62a63aa8f2419a774eb63bba4, 312c7d2ebe696da3f885eee77d52297664e57c53, 8791977d7289f6e9d2b014f60a5455f053a7bc04
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 6856b3c23b0995eefad5a6142b4365ef70e1fe4a 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: Use overflow checks in control_update size calc In sof_ipc3_control_update(), the expected_size calculation uses firmware-provided cdata->num_elems in arithmetic that could overflow on 32-bit platforms, wrapping to a small value. This would allow the cdata->rhdr.hdr.size comparison to pass with mismatched sizes, potentially leading to out-of-bounds access in snd_sof_update_control. Use check_mul_overflow() and check_add_overflow() to detect and reject overflowed size calculations.

Quoted source text, attributed separately from HOL analysis.