4ba3404ca3
This fixes a bug in the memfd-related management of a linear memory where for dynamic memories memfd wasn't informed of the extra room that the dynamic memory could grow into, only the actual size of linear memory, which ended up tripping an assert once the memory was grown. The fix here is pretty simple which is to factor in this extra space when passing the allocation size to the creation of the `MemFdSlot`.
Fuzzing Infrastructure for Wasmtime
This crate provides test case generators and oracles for use with fuzzing.
These generators and oracles are generally independent of the fuzzing engine
that might be using them and driving the whole fuzzing process (e.g. libFuzzer
or AFL). As such, this crate does not contain any actual fuzz targets
itself. Those are generally just a couple lines of glue code that plug raw input
from (for example) libFuzzer into a generator, and then run one or more
oracles on the generated test case.
If you're looking for the actual fuzz target definitions we currently have, they
live in wasmtime/fuzz/fuzz_targets/* and are driven by cargo fuzz and
libFuzzer.