Melting Down PatchGuard: Leveraging KPTI to Bypass Kernel Patch Protection

by Omri Misgav & Udi Yavo on October 26, 2018 –

The mitigation for Meltdown created a new part in the kernel which PatchGuard left unprotected, making hooking of system calls and interrupts possible, even with HVCI enabled.[…]

https://blog.ensilo.com/meltdown-patchguard

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