RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 05:07:34 +00:00
Code Issues Activity Actions

LibWasm: Correct memory init size when instantiating

Browse source 
These limits are in units of page size, not bytes.
Also fixes incorrect debug logs.
This commit is contained in:
Ali Mohammad Pur 2021-05-17 21:41:07 +04:30 • committed by Ali Mohammad Pur
parent 4fd43a8f96
commit 4a459d2430
3 changed files with 5 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

3
Userland/Libraries/LibWasm/AbstractMachine/AbstractMachine.cpp
View file

@ -162,7 +162,8 @@ InstantiationResult AbstractMachine::instantiate(const Module& module, Vector<Ex
instantiation_result = InstantiationError { String::formatted("Data segment attempted to write to out-of-bounds memory ({}) of max {} bytes", data.init.size() + offset, instance->type().limits().max().value()) };
return;
}
instance->grow(data.init.size() + offset - instance->size());
if (instance->size() < data.init.size() + offset)
instance->grow(data.init.size() + offset - instance->size());
instance->data().overwrite(offset, data.init.data(), data.init.size());
}
},