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Wednesday, July 1 • 11:05am - 11:50am
Mitigating (Some) Use-after-frees in the Linux Kernel - Jann Horn, Google

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This talk presents a prototype of a compiler-based mitigation for use-after-free accesses in the Linux kernel. The mitigation runs on X86-64 systems, and ensures that no accesses can happen to (most) slab allocations if the allocation has been freed and reused in the meantime.

This talk will introduce the rough design goals for such a mitigation, followed by the design they led to, the performance characteristics, and ideas for possible improvements to the current prototype.


Jann Horn

Project Zero Researcher, Google
Jann Horn has worked as a security researcher for Google's Project Zero for three years. His focus area are vulnerabilities in kernel code.

Wednesday July 1, 2020 11:05am - 11:50am CDT
Linux Security Summit Theater
  Linux Security Summit