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`Module.load()` fails to return a handle to the loaded module. #1029

leonjza opened this issue Sep 27, 2019 · 0 comments


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commented Sep 27, 2019

I have a dylib in an iOS applications Documents directory. When loading with Module.load(dylibPath);, an exception is thrown as follows:

Error: unable to find module '/var/mobile/Containers/Data/Application/87C72D23-BA24-4636-9E52-54DC14072D47/Documents/m.dylib'
    at Object.value [as getModuleByName] (frida/runtime/core.js:353:15)
    at Function.value [as load] (frida/runtime/core.js:221:22)
    at /m.js:26:34
    at performScheduledWorkItem (frida/node_modules/frida-objc-bridge/index.js:158:1)

While confusing at first, when running Process.enumerateModules();, the dylib actually did load successfully and could be used as normal:

        "base": "0x116bc4000",
        "name": "m.dylib",
        "path": "/private/var/mobile/Containers/Data/Application/4F0836B4-F36A-4E8F-AC80-E0B6293A4AD1/Documents/m.dylib",
        "size": 622592

Some investigation revealed that once loaded, a call to Process.getModuleByName(moduleName) is made with moduleName being the full path to the dylib that got loaded originally and not just m.dylib. This fails and causes the error above.

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