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NULLGuard

kext kills all 32bit binaries lacking __PAGEZERO (required for exploitation of kernel NULL derefs)

Install / Use

/learn @kpwn/NULLGuard
About this skill

Quality Score

0/100

Supported Platforms

Universal

README

NULLGuard

This prevents binaries lacking __PAGEZERO from running.

Among other things, it fixes tpwn and renders a ton of bugs unexploitable.

note: some older binaries (10.4?) could also be affected, but I haven't yet encountered a non-malicious binary lacking PAGEZERO.

View on GitHub
GitHub Stars114
CategoryDevelopment
Updated1mo ago
Forks29

Languages

C

Security Score

80/100

Audited on Feb 20, 2026

No findings