CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's MediaTek MT8192 audio subsystem, where the probe function improperly handles runtime power management during device initialization. If the runtime resume fails, the probe continues without ensuring device accessibility, potentially leading to resource leaks and inconsistent device states. Organizations using Linux systems with the MT8192 chipset should prioritize addressing this issue to prevent potential operational disruptions and ensure proper device functionality.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: mediatek: mt8192: Check runtime resume during probe The MT8192 AFE probe enables runtime PM temporarily while reinitializing the regmap cache from hardware, but it uses pm_runtime_get_sync() without checking the return value. If runtime resume fails, probe keeps going without the device necessarily being accessible, and pm_runtime_get_sync() may leave the PM usage count incremented. The regmap_reinit_cache() failure path also returns before dropping the temporary PM reference and before clearing pm_runtime_bypass_reg_ctl. Use pm_runtime_resume_and_get() so resume failures do not leak a usage count, and clear the temporary bypass flag after dropping the probe PM reference on all regmap_reinit_cache() outcomes.