OVERSIZE_INITIAL_MEMORY

largeinit.wat (81 bytes) — declares memory 32: an INITIAL size of 32 pages exceeding the default 16-page sandbox cap, and no explicit max.

It therefore breaks two rules at once, and a rejection cannot be attributed to either: the no-max guard rejects it just as readily, so an impl that never checks the initial size keeps every test using this vector green. That is not a fixture written carelessly — WebAssembly validates limits with min <= max, so no spec-valid module can carry an over-cap initial without also carrying an over-cap max or no max at all. See INITIAL_ABOVE_DECLARED_MAX for the vector that can reach the initial guard, and WasmRuntimeConformanceSuite.loadRejectsModuleWithNoMaxAndOversizeInitialMemory for what this one does and does not hold (#2315).