Linux Kernel Vulnerability in RT1011 Codecs Affecting Audio Processing

CVE-2026-43478

What is CVE-2026-43478?

In the Linux kernel, a vulnerability exists within the audio subsystem specifically affecting the RT1011 codecs. The flaw originates from improper handling when attempting to retrieve the DAPM (Dynamic Audio Power Management) context in the 'rt1011_recv_spk_mode_put' function. Utilizing an incorrect helper leads to a NULL pointer dereference instead of providing the necessary DAPM context. This oversight can impede the handling of audio functionalities, making it essential for users to apply the necessary updates to ensure reliable operation of audio components within affected systems.

References