CVE-2022-49128 Information

Description

In the Linux kernel the following vulnerability has been resolved:

drm/bridge: Add missing pm_runtime_put_sync

pm_runtime_get_sync() will increase the rumtime PM counter even when it returns an error. Thus a pairing decrement is needed to prevent refcount leak. Fix this by replacing this API with pm_runtime_resume_and_get() which will not change the runtime PM counter on error. Besides a matching decrement is needed on the error handling path to keep the counter balanced.

Reference

https://git.kernel.org/stable/c/46f47807738441e354873546dde0b000106c068a https://git.kernel.org/stable/c/792533e54cd6e89191798ccd1abd590c62b9077e https://git.kernel.org/stable/c/9df80dc738926a2ea4bd1ce5993c3d0f4b0e855c https://git.kernel.org/stable/c/ff13c90d7f7ab606b37be6d15140d19013d6736c