Rangechecks out of range access - C++ - c++

Question

So I'm trying to inject a debug dll on my test process that just says "hello world" upon being successfully injected:
PS: I'm using C++/CLI to launch my C++ script from an interface.
hello.dll
// dllmain.cpp : Defines the entry point for the DLL application.
#include "pch.h"
#include <windows.h>
BOOL APIENTRY DllMain(HMODULE hModule,
DWORD reason,
LPVOID lpReserved
)
{
if (reason == DLL_PROCESS_ATTACH)
MessageBox(NULL, L"HELLO WORLD", L"INFO", NULL);
return TRUE;
}
Below is the part of my code which takes this dll, allocates memory in the target process, writes the dll path to the latter allocated space. LoadLibraryA is then called to run the DLL from the path. However when I attach my vstudio debugger to the target process while injecting the DLL it crashes at the LoadLibraryA function with an error:
ntldll.dll rangechecks out of range access
PSS: the callstack just contains ntdll.dll functions
Injection code:
char* dll_path = "C:/some_path/hello.dll";
HANDLE h_process = OpenProcess(PROCESS_ALL_ACCESS, NULL, debug_app_id);
HANDLE allocatedMemory = VirtualAllocEx(h_process, 0, MAX_PATH, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);
WriteProcessMemory(h_process, allocatedMemory, dll_path, strlen(dll_path) + 1, nullptr);
HANDLE h_thread = CreateRemoteThread(h_process, 0, 0, (LPTHREAD_START_ROUTINE)LoadLibraryA, allocatedMemory, 0, 0);//crashes here
cout << "Success!" << endl;
cout << endl;
cout << "Cleaning..." << endl;
CloseHandle(h_process);//dropping process handle
VirtualFreeEx(h_process, allocatedMemory, NULL, MEM_RELEASE);//release pointed to memory
Any ideas?
EDIT: when I try to allocate the memory I get System.AccessViolationException: 'Attempted to read or write protected memory. This is often an indication that other memory is corrupt
Thanks in advance.