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Linux Kernel Security Linux Kernel Security @linkersec · 4.72K subscribers
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When Good Kernel Defences Go Bad: Reliable and Stable Kernel Exploits via Defense-Amplified TLB Side-Channel Leaks

Awesome paper by Lukas Maar et al. about leaking exploitation-relevant kernel addresses via a TLB side-channel attack.

Authors demonstrate how to leak the addresses of the physmap, vmemmap, and vmalloc memory regions, addresses of page tables of all levels, addresses of kernel stacks, and addresses of various kernel objects including msg_msg, pipe_buffer, cred, file, and seq_file.

Authors then show how to apply the discovered techniques in exploits; the code is public.
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