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CVE-2024-41039 is an out-of-bounds read vulnerability in the Linux kernel firmware: cs_dsp component when parsing WMFW firmware headers. The affected length validation checked for the combined size of wmfw_header, wmfw_adsp1_sizes, and wmfw_footer. However, ADSP2 and Halo Core firmware uses wmfw_adsp2_sizes, which is four bytes larger than wmfw_adsp1_sizes. Consequently, a truncated ADSP2 or Halo Core firmware buffer could satisfy the original check while lacking sufficient bytes for the structure subsequently parsed. The fix validates wmfw_header, the applicable ADSP size structure, and wmfw_footer separately before use.
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Linux kernel cs_dsp firmware WMFW-header overflow-checking flaw.
Linux kernel cs_dsp firmware handling flaw involving insufficient overflow checking of WMFW headers.
Linux kernel cs_dsp firmware flaw involving insufficient overflow checking of a WMFW header.
Linux kernel firmware: cs_dsp buffer-overrun vulnerability caused by incorrect wmfw firmware-header length validation for ADSP2 and Halo Core firmware. The fix validates the header, DSP-specific size structure, and footer separately before use.
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Cross-references every affected SKU, including bundled OEM variants.
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