WasmModule.loadLinked may return partially initialized module on OOM

[jtakakura]

Description

If allocator.create(Vm) fails in WasmModule.loadLinked, the function returns a module with an uninitialized vm field. Later, deinit() on this module triggers undefined behavior.

Steps to reproduce

1. Simulate OOM during allocator.create(Vm) in loadLinked
2. Observe that the returned module has an uninitialized vm field
3. Call deinit() on this module
4. Undefined behavior occurs (crash or memory error)

zwasm version

1.8.0

Platform

Linux x86_64

Additional context

No response