From 5ae1724add800780475e02e05a4af133e3729bd6 Mon Sep 17 00:00:00 2001 From: Alon Zakai Date: Mon, 12 Oct 2020 17:11:30 -0700 Subject: Interpreter: Add a limit to how much we try to grow memory, to avoid DOS (#3227) growMemory() now also returns whether we succeeded. Without this it could eventually start to swap etc., which is annoying. --- src/tools/wasm-ctor-eval.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/tools/wasm-ctor-eval.cpp') diff --git a/src/tools/wasm-ctor-eval.cpp b/src/tools/wasm-ctor-eval.cpp index a38ca4027..50ba4404e 100644 --- a/src/tools/wasm-ctor-eval.cpp +++ b/src/tools/wasm-ctor-eval.cpp @@ -283,7 +283,7 @@ struct CtorEvalExternalInterface : EvallingModuleInstance::ExternalInterface { // called during initialization, but we don't keep track of a table void tableStore(Address addr, Name value) override {} - void growMemory(Address /*oldSize*/, Address newSize) override { + bool growMemory(Address /*oldSize*/, Address newSize) override { throw FailToEvalException("grow memory"); } -- cgit v1.2.3