### Godot version

master CI builds

### System information

Linux / Editor with doubles and GCC sanitizers

### Issue description

The `Linux / Editor with doubles and GCC sanitizers` build can fail with a `attempting free on address which was not malloc()-ed` crash in the `Open and close editor (Vulkan)` step.

https://github.com/godotengine/godot/actions/runs/5366302204/jobs/9735786296#step:15:138
https://github.com/godotengine/godot/actions/runs/5389199469/jobs/9783070708?pr=78740#step:15:138

The failure doesn't seem related to either PR (in fact one of them is just a docs change). I have only seen this issue these two times, still probably worth looking into.

### Steps to reproduce

Open and close https://github.com/godotengine/regression-test-project/archive/4.0.zip using the Vulkan renderer.

### Minimal reproduction project

https://github.com/godotengine/regression-test-project/archive/4.0.zip
if (false) {
					
					
					continue; 
				} else {
					_flush(false);
					for (int i = 0; i < staging_buffer_blocks.size(); i++) {
						
						int block_idx = (i + staging_buffer_current) % staging_buffer_blocks.size();
						if (staging_buffer_blocks[block_idx].frame_used == frames_drawn) {
							break; 
						}
						staging_buffer_blocks.write[block_idx].frame_used = 0;
						staging_buffer_blocks.write[block_idx].fill_amount = 0;
					}
					
					staging_buffer_blocks.write[staging_buffer_current].frame_used = frames_drawn;
				}
			}
		}
		
		break;
	}
	staging_buffer_used = true;
	return OK;
}
Error RenderingDeviceVulkan::_buffer_update(Buffer *p_buffer, size_t p_offset, const uint8_t *p_data, size_t p_data_size, bool p_use_draw_command_buffer, uint32_t p_required_align) {