Pod2g finds an Untethered Jailbreak for iOS 5.0.1

His Blog says:

Today I succeed in jailbreaking my iPod 3G.

The exploit is user-land, rely on a user ROP payload and a kernel write anywhere exploit.
I can’t give much details right now, but here are the next steps :
– upgrade the iPod 3G to iOS 5.0.1
– do the same on iPhone 4 / iOS 5.0.1
– then iPad 1 & iPod 4G
At every step, the exploit code needs certainly to be reworked, but I really don’t know right now.
Next, I’ll return to the research for iPad 2 and iPhone 4S. I don’t know if I gonna release first for other devices or not. I’ve to think about it. Feel free to give your opinion.
I’ll update the blog when I have news.
Cya.
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