# CVE-2026-43443: ASoC: amd: acp-mach-common: Add missing error check for clock acquisition

Status: published. Published: 2026-05-08. Updated: 2026-11-06.

In the Linux kernel, the following vulnerability has been resolved:

ASoC: amd: acp-mach-common: Add missing error check for clock acquisition

The acp_card_rt5682_init() and acp_card_rt5682s_init() functions did not
check the return values of clk_get(). This could lead to a kernel crash
when the invalid pointers are later dereferenced by clock core
functions.

Fix this by:
1. Changing clk_get() to the device-managed devm_clk_get().
2. Adding IS_ERR() checks immediately after each clock acquisition.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Linux / Linux: ≥ d4c750f2c7d44b5b39e197308bc3f510205bba4b; < f9cdfe3f94e93b606ff5d6e8e6dc405e07acce84 (affected, git); ≥ d4c750f2c7d44b5b39e197308bc3f510205bba4b; < a71ce398347fed9422dbd5c6458f7f8348012c64 (affected, git); ≥ d4c750f2c7d44b5b39e197308bc3f510205bba4b; < 53682a55cac6f159311c63d04f3d7ba64a8a455a (affected, git); ≥ d4c750f2c7d44b5b39e197308bc3f510205bba4b; < e0e31a7ed1191c12a28763bb70c4c7f5adadc79d (affected, git); ≥ d4c750f2c7d44b5b39e197308bc3f510205bba4b; < 0cee68fb7f4cf1562e067c5a82d25062a973b0d0 (affected, git); ≥ d4c750f2c7d44b5b39e197308bc3f510205bba4b; < 30c64fb9839949f085c8eb55b979cbd8a4c51f00 (affected, git). Source: CNA: Linux
- Linux / Linux: 5.16 (affected); ≥ 0; < 5.16 (unaffected, semver); ≥ 6.1.191; ≤ 6.1.* (unaffected, semver); ≥ 6.6.160; ≤ 6.6.* (unaffected, semver); ≥ 6.12.114; ≤ 6.12.* (unaffected, semver); ≥ 6.18.57; ≤ 6.18.* (unaffected, semver); ≥ 6.19.9; ≤ 6.19.* (unaffected, semver); ≥ 7.0; ≤ * (unaffected, original_commit_for_fix). Source: CNA: Linux

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: 0.12% as of 2026-11-06; percentile 2.09%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: Not reported

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://git.kernel.org/stable/c/f9cdfe3f94e93b606ff5d6e8e6dc405e07acce84 (CNA: Linux)

- https://git.kernel.org/stable/c/a71ce398347fed9422dbd5c6458f7f8348012c64 (CNA: Linux)

- https://git.kernel.org/stable/c/53682a55cac6f159311c63d04f3d7ba64a8a455a (CNA: Linux)

- https://git.kernel.org/stable/c/e0e31a7ed1191c12a28763bb70c4c7f5adadc79d (CNA: Linux)

- https://git.kernel.org/stable/c/0cee68fb7f4cf1562e067c5a82d25062a973b0d0 (CNA: Linux)

- https://git.kernel.org/stable/c/30c64fb9839949f085c8eb55b979cbd8a4c51f00 (CNA: Linux)

## Provenance

- CNA: Linux: https://www.cve.org/CVERecord?id=CVE-2026-43443; retrieved 2026-11-06; source updated 2026-11-06

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-43443; retrieved 2026-11-06; source updated Not reported

Revision: ca2e92ecac40c85bb3d643adec29793e413736d0ad482c1325510c5ffbedf799

Canonical: https://y2.dev/cve/CVE-2026-43443

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