NWPlayer123 teases 5.5.1 IOSU

Selver

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fail0verflow's talk from a few years ago if you haven't already seen it.


NWPlayer123 and Vappy,

Thank you, the Overflow talk was a great starting point (no, I'd not seen it). NWPlayer123, your fast write up was also appreciated, and the links to wiiubrew.org were a great follow-up to the original CCC talk. So, thank you both. :)
 

NWPlayer123

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Wait, so what malformed data do we pass to what syscall and how? And, remind me again, isn't a syscall like a communication agent between userspace and the kernel?
Yes, syscalls are literally just
li r0, 0x3200
sc
r0 is what passes in the syscall number, sc is an interrupt that just jumps straight to 0xFFF00C00
that function does some shift stuff to jump to 0xFFF021A0 + (0x20 * r0 & 31), so you can only have "fastcalls" 0x00 to 0x1F
"Full" syscalls are divisible by 0x100, which'll all jump to fastcall 0 which is the table dispatcher, it gets the syscall table based on the RAMPID or UID, don't remember which, and gets that syscall, and jumps to it
The two existing kernel exploits are the OSDriver exploit and the gx2sploit, your end goal is to use kernel permissions to write to the syscall table for the browser so you can run code, we just install kern_read and kern_write which are just the last few instructions of Read/WriteRegister32Ex and whatever else might be useful
After that, you pretty much have free reign, MN1 made a thing forever ago to reboot to a custom kernel for DarkSide OS, I think it's on libwiiu
 

Arck

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You forget trolls ;)

This is all real and people should starts to bring more respect to devs; this is another thing I doubt will change.
Also people who like dev comment but they don't understand anything :rofl:

And yes it's true, that why some dev leave gbatemp, troll, ass licker ect...
 

Dungeonseeker

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So what I got from this thread is

A) The person behind the KFC countdown is a dick
B) NWPlayer should never be trusted and might be Hykem in disguise
C) People claim IOSU is real and semi working
D) Any GBATemp thread with the phrase IOSU in the title will give you cancer
E) Once again we're being teased for something we will never end up getting
 

raulpica

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This wasn't necessary, this thread is probably the only serious IOSU thread in a long time
90% of the posts in here are total shit, if you guys wanted this to stay in the WiiU section you should learn to treat this kind of threads better and/or if you're not part of the shitposting, to meticulously report the shitposters.

If you want a better GBAtemp, you need to be part of it! :yaysp:
 

Deleted member 386348

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90% of the posts in here are total shit, if you guys wanted this to stay in the WiiU section you should learn to treat this kind of threads better and/or if you're not part of the shitposting, to meticulously report the shitposters.

If you want a better GBAtemp, you need to be part of it! :yaysp:
Agreed. It's because of the IOSUposting that no one takes these threads seriously, and it's infuriating.
 

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