In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: soc-acpi-intel-lnl-match: add missing empty item There is no links_num in struct snd_soc_acpi_mach {}, and we test !link->num_adr as a condition to end the loop in hda_sdw_machine_select(). So an empty item in struct snd_soc_acpi_link_adr array is required.
https://git.kernel.org/stable/c/c4246f1fe9f24f8dcd97887ed67d8fcfd91f4796
https://git.kernel.org/stable/c/8eb57389d8ad91c67bf844f5aae4caef74b9091b