CVE-2023-54267

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Rework lppacasharedproc to avoid DEBUGPREEMPT lppacasharedproc takes a pointer to the lppaca which is typically accessed through getlppaca. With DEBUGPREEMPT enabled, this leads to checking if preemption is...

kernel: powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT

A debug warning issue was found in PowerPC pseries code. When DEBUGPREEMPT is enabled, accessing lppacasharedproc triggers spurious preemption warnings because it uses smpprocessorid in preemptible context...