Bug 2379229 (CVE-2025-38330)

Summary: CVE-2025-38330 kernel: firmware: cs_dsp: Fix OOB memory read access in KUnit test (ctl cache)
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-07-10 09:01:27 UTC 
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.
Comment 1 Avinash Hanwate 2025-07-11 06:51:21 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025071033-CVE-2025-38330-bc1d@gregkh/T