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Comment Re:All the other OS, too. (Score 1) 352

On the contrary, the line is quite correct in most cases. The modem processor and the application processor are in the same chip and both have access to the same memory. Further, the modem actually boots up first and it loads the application processor's kernel in RAM before starting it. (the MSM7200 for example (the HTC Hero SoC): High level diagram and Boot documentation)

So, if your modem processor is compromised it really is game over.

Comment Re:Fearmongering from the uneducated.... (Score 1) 352

I think the poster needs to learn about embedded systems and what the firmware in these things do.

I think this applies much more to you than the poster. If you bothered to read the article, you would have seen that it links to a presentation about reverse engineering basebands, which clearly shows that there is an RTOS running there (REX OS)

Comment Re:makes little sense (Score 1) 352

I don't know what you mean by "arbitrary hardrware" but in the android world it is normal for the modem and application processor to be in the same chip and to use the same RAM.

Take the MSM7200 for example (the HTC Hero SoC): High level diagram, Boot documentation, Software Interface Manual.

As you can see both the application processor and the modem processor are on the same chip and access the same memory. The modem processor starts up first and is reposnible for eventually starting up the application processor after putting its kernel in RAM. And there is nothing particularly strange about this configuration.

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