In the Linux kernel, the following vulnerability has been resolved:
firmware: cs_dsp: Prevent buffer overrun when processing V2 alg headers
Check that all fields of a V2 algorithm header fit into the available
firmware data buffer.
The wmfw V2 format introduced variable-length strings in the algorithm
block header. This means the overall header length is variable, and the
position of most fields varies depending on the length of the string
fields. Each field must be checked to ensure that it does not overflow
the firmware data buffer.
As this ia bugfix patch, the fixes avoid making any significant change to
the existing code. This makes it easier to review and less likely to
introduce new bugs.
Security readout for executives and security teams
Plain-English summary
A malformed WMFW V2 firmware file can cause the Linux cs_dsp firmware parser to read or write beyond its available buffer. Successful exploitation could compromise confidentiality, integrity, and availability, but requires local access and user interaction. Exposure is concentrated on systems using the affected driver and firmware format, not every Linux system.
Executive priority
Treat as a high-priority targeted kernel update, especially for endpoints or appliances using the affected DSP firmware path. It is not supported as an internet-wide emergency: exploitation is local, requires interaction, and is not evidenced as active. Accelerate patching where untrusted users or firmware inputs are plausible.
Technical view
The cs_dsp parser did not verify that every field in a variable-length WMFW V2 algorithm header remained within the firmware data buffer. Because string lengths shift later fields, malformed headers could cause a buffer overrun. The resolution adds field-by-field bounds checks. CVSS 3.1 is 7.8: local, low complexity, no privileges, user interaction required.
Likely exposure
Potentially exposed systems run an affected Linux kernel, use the cs_dsp firmware code, and process WMFW V2 firmware. The supplied version data names Linux 5.16 and later branches, including 6.1.100, 6.6.41, 6.9.10, and 6.10, but does not clearly express exact ranges. Confirm status with distribution or vendor advisories.
Exploitation context
The supplied record is not marked as CISA KEV and provides no evidence of active exploitation or a public exploit. The CVSS vector indicates a local attack requiring user interaction, without prior privileges. Practical exploitation also appears dependent on reaching the affected firmware parsing path with malformed WMFW V2 data.
Researcher notes
The security boundary failure occurs while advancing through variable-length V2 algorithm headers. Later field offsets depend on preceding string lengths, so validating only a fixed header size is insufficient. The fix checks each field against remaining firmware-buffer bounds. The bundle does not identify a CWE, confirmed exploit, affected hardware list, or unambiguous version ranges.
Mitigation direction
Install a vendor-supported kernel containing the applicable stable fix.
Consult the Linux distribution or device vendor for precise affected and fixed versions.
Restrict untrusted users and processes from supplying or replacing DSP firmware files.
Prioritize systems that actively use cs_dsp and WMFW V2 firmware.
Validation and detection
Inventory kernel versions on systems using Cirrus DSP firmware functionality.
Confirm whether cs_dsp loads WMFW V2 firmware in each deployed configuration.
Compare vendor kernel builds against the four referenced stable fixes.
Verify the updated kernel is active after remediation.
Review vendor advisories where supplied version boundaries remain ambiguous.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2024-41038 mapping review
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We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.