CVE-2022-49848 Information

Description

In the Linux kernel the following vulnerability has been resolved:

phy: qcom-qmp-combo: fix NULL-deref on runtime resume

Commit fc64623637da (\phy: qcom-qmp-combousb: add support for separate PCS_USB region) started treating the PCS_USB registers as potentially separate from the PCS registers but used the wrong base when no PCS_USB offset has been provided.

Fix the PCS_USB base used at runtime resume to prevent dereferencing a NULL pointer on platforms that do not provide a PCS_USB offset (e.g. SC7180).

Reference

https://git.kernel.org/stable/c/04948e757148f870a31f4887ea2239403f516c3c https://git.kernel.org/stable/c/c559a8b5cfa3db196ced0257b288f17027621348