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Kernel: Make Region weakable and use WeakPtr<Region> instead of Region*

This turns use-after-free bugs into null pointer dereferences instead.
This commit is contained in:
Andreas Kling 2020-02-24 13:24:30 +01:00
parent 79576f9280
commit 30a8991dbf
5 changed files with 14 additions and 8 deletions

View file

@ -27,6 +27,7 @@
#pragma once
#include <AK/OwnPtr.h>
#include <AK/WeakPtr.h>
#include <Kernel/VM/MemoryManager.h>
#include <Kernel/VM/PurgeableVMObject.h>
@ -42,7 +43,7 @@ private:
pid_t pid;
unsigned count { 0 };
Region* region { nullptr };
WeakPtr<Region> region;
};
public: