// Loop all active instances in the room
for (
CInstance* inst = current_room->m_ActiveInstances.m_First;
inst != nullptr;
inst = inst->GetMembers().m_Flink
)
{
// Check if the ID matches our target instance
if (inst->GetMembers().m_ID != InstanceID)
continue;
// Return the pointer to it
Instance = inst;
return AURIE_SUCCESS;
}
seems to be problematic, as pointers easily get into unmapped memory, which crashes the runner.
Initial investigation indicates a problem with struct misalignment. Occurs on a GM 2022.6 game "Islets" (Steam ver., x86).
YYObjectBase seems to be aligned correctly (at least m_RValueInitType has it's expected value), so it seems that only CInstance is affected to the point where the ID is improperly read.
Archie-osu
commented
2 months ago
The loop here:
seems to be problematic, as pointers easily get into unmapped memory, which crashes the runner. Initial investigation indicates a problem with struct misalignment. Occurs on a GM 2022.6 game "Islets" (Steam ver., x86). YYObjectBase seems to be aligned correctly (at least m_RValueInitType has it's expected value), so it seems that only CInstance is affected to the point where the ID is improperly read.