### 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
r_alloc_offset = write_from;
				r_alloc_size = available_bytes - (available_bytes % p_required_align);
			} else {
				
				
				staging_buffer_current = (staging_buffer_current + 1) % staging_buffer_blocks.size();
				
				
				if (staging_buffer_blocks[staging_buffer_current].frame_used == frames_drawn) {
					
					if ((uint64_t)staging_buffer_blocks.size() * staging_buffer_block_size < staging_buffer_max_size) {
						
						Error err = _insert_staging_block();
						if (err) {
							return err;
						}
						
						staging_buffer_blocks.write[staging_buffer_current].frame_used = frames_drawn;
					} else {
						
						
						
						
						if (false) { 
							
							continue;
						} else {
							
							_flush(true);