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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-08 · updated 2026-10-30
• Weakness: CWE-476

Description

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.

Affected products

• Linux kernel: from 5.16 before 6.19.9; 7.0-rc1, 7.0-rc2, 7.0-rc3 — fixed in 6.19.9
• Linux: 5.16 — fixed in 7.0

How to fix

Upgrade to a fixed version: Linux kernel 6.19.9; Linux 7.0. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0cee68fb7f4cf1562e067c5a82d25062a973b0d0
• https://git.kernel.org/stable/c/30c64fb9839949f085c8eb55b979cbd8a4c51f00
• https://git.kernel.org/stable/c/53682a55cac6f159311c63d04f3d7ba64a8a455a
• https://git.kernel.org/stable/c/a71ce398347fed9422dbd5c6458f7f8348012c64
• https://git.kernel.org/stable/c/e0e31a7ed1191c12a28763bb70c4c7f5adadc79d
• https://git.kernel.org/stable/c/f9cdfe3f94e93b606ff5d6e8e6dc405e07acce84

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