For Apple, jailbreaking is like a cat-and-mouse game. Don’t you know that iPhone and other users are still as enthusiastic about jailbreaking as before?
Now, a hacker @b1n4r1b01 has revealed a potential vulnerability for iOS 15 to iOS 15.1.1, and if it is confirmed.
Gets you kernel memory write primitives on iOS 15.0-15.1 using CVE-2021-30955 by @realBrightiup I have done all my tests on an iPhone 11 running 15.1 but it should work on all devices with 4GB RAM because I am not using any hardcoded offsets or something…
.. but it can optimised for other devices based on kalloc_large_*_map sizes, for devices with 6GB RAM they a single map is ~150MB in size. After rebooting your devices wait for 40-50 seconds and then run this code. I’m only leaving this code with write privileges because…
@b1n4r1b01 The mentioned vulnerability address: https://www.cyberkl.com/cvelist/cvedetail/24
@b1n4r1b01 Advance project, 50% probability is available：https://github.com/b1n4r1b01/desc_race
we may soon see a jailbreak for iOS 15 to iOS 15.1.1.
T4TeCH 
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lingyu