What’s Vulnerable › Vulnerabilities

CVE-2026-74295: ASoC: codecs: hdac_hdmi: Validate written enum value

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-10-16

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: hdac_hdmi: Validate written enum value hdac_hdmi_set_pin_port_mux() uses the written enum value to index the texts array before calling snd_soc_dapm_put_enum_double(), which validates that the value is within the enum item range. An out-of-range value can therefore make the driver read past the texts array before the helper rejects the write. Move the lookup after the helper has accepted the value.

Affected products

• Linux kernel: 4.6 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0b08baeccdcf52fad328ad645f5b4fbee04eea34
• https://git.kernel.org/stable/c/216336418c007c4b44c650acf2fd3d2de5bb81e8
• https://git.kernel.org/stable/c/7f02e9064b6f84e7f93c72f134306271eb4f7de4
• https://git.kernel.org/stable/c/8cbf24714d6b3f553fc959632c9781176a73a9a7
• https://git.kernel.org/stable/c/9131e4b023e0db5764680034bdc94aeae0b0f33d
• https://git.kernel.org/stable/c/bc464a6a9e352daa17b1636c090cf3185710b9a0
• https://git.kernel.org/stable/c/d8961b5c7889b6ecc00f1409d36826df1665df27

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