What’s Vulnerable › Vulnerabilities

CVE-2025-38330: firmware: cs_dsp: Fix OOB memory read access in KUnit test (ctl cache)

• 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: 2025-07-10 · updated 2026-06-17
• Weakness: CWE-125

Description

In the Linux kernel, the following vulnerability has been resolved: firmware: cs_dsp: Fix OOB memory read access in KUnit test (ctl cache) KASAN reported out of bounds access - cs_dsp_ctl_cache_init_multiple_offsets(). The code uses mock_coeff_template.length_bytes (4 bytes) for register value allocations. But later, this length is set to 8 bytes which causes test code failures. As fix, just remove the lenght override, keeping the original value 4 for all operations.

Affected products

• Linux kernel: from 6.14 before 6.15.4 — fixed in 6.15.4

How to fix

Upgrade to a fixed version: Linux kernel 6.15.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/e3dafc64b90546eb769f33333afabd9e3e915757
• https://git.kernel.org/stable/c/f4ba2ea57da51d616b689c4b8826c517ff5a8523

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