Linux Kernel Runtime Power Management Leak Vulnerability in Tegra I2C Driver

A vulnerability exists in the Linux kernel's Tegra I2C driver, where a failure to acquire a mutex lock leads to a leak of the runtime power management reference. This leak occurs because the function does not release the reference after a lock failure, preventing the device from entering a low-power suspend state. The issue has been addressed by adding the missing reference release before returning from the function on lock failure.

Impact

The vulnerability causes a runtime power management reference leak, preventing affected devices from entering a low-power suspend state.

Remediation

Users can apply the latest patch available in the Linux kernel stable tree to address this vulnerability.