Linux Kernel Rockchip I2S TDM PM Reference Vulnerability

A vulnerability in the Linux kernel's ASoC rockchip component related to improper power management (PM) reference handling has been addressed. The issue arose because the 'pm_runtime_get_sync' function would increment the PM usage counter even if the operation failed, leading to a reference leak. This vulnerability has been fixed by replacing the problematic function with 'pm_runtime_resume_and_get', ensuring that the usage counter remains balanced.

Impact

The vulnerability could lead to a power management reference leak, potentially causing improper resource management and increased power consumption.