CVE-2022-50844

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the Linux kernel related to an incorrect function pointer type in the odn edit dpm table() callback within the drm/amdgpu subsystem. Specifically, the second parameter type in the callback was mismatched between implementations, leading to potential issues with kernel control flow integrity (kCFI) when using clang. This discrepancy could result in a kernel panic or thread termination. The issue arises from a type mismatch between enum PP OD DPM TABLE COMMAND and u32 for the second parameter of the odn edit dpm table() function. The smu od edit dpm table() function calls od edit dpm table() from struct pptable funcs, while pp odn edit dpm table() calls odn edit dpm table() from struct pp hwmgr func, both expecting the enum PP OD DPM TABLE COMMAND type.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.