Kernel: Stop trying to write unmapped Process regions into CoreDumps

If we crashed in the middle of mapping in Regions, some of the regions
may not have a page directory yet, and will result in a crash when
Region::remap() is called.

1 files changed, 2 insertions, 0 deletions

diff --git a/Kernel/Memory/Region.h b/Kernel/Memory/Region.h
index 54380fe7ed..dcaeae18a0 100644
--- a/Kernel/Memory/Region.h
+++ b/Kernel/Memory/Region.h
@@ -188,6 +188,8 @@ public:
 
     void remap();
 
+    [[nodiscard]] bool is_mapped() const { return m_page_directory != nullptr; }
+
     void clear_to_zero();
 
     [[nodiscard]] bool is_syscall_region() const { return m_syscall_region; }