Decoding Error Vulnerability in Linux Kernel Affects Qualcomm PD Mapper

CVE-2026-43108

What is CVE-2026-43108?

A vulnerability in the Linux kernel related to the Qualcomm PD Mapper has been identified due to a mismatch in the element length during the decoding process. Specifically, the issue arises when the declared length in the 'servreg_loc_pfr_req_ei' does not align with the corresponding length defined in the 'servreg_loc_pfr_req' reason field. This misalignment leads to a decoding error, which can ultimately cause a crash of the Power Domain (PD). The issue is resolved by ensuring that the element length matches the expected maximum length, thus preventing potential crashes and enhancing the stability of the impacted services.

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