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Linux Kernel Security Linux Kernel Security @linkersec · 4.74K subscribers
Post #82 929
Four Bytes of Power: exploiting CVE-2021-26708 in the Linux kernel

I've published the article about exploiting CVE-2021-26708 for local privilege escalation on Fedora 33 Server for x86_64, bypassing SMEP and SMAP.

https://a13xp0p0v.github.io/2021/02/09/CVE-2021-26708.html

PoC exploit demo video: https://www.youtube.com/watch?v=EC8PFOYOUgU
Alexander Popov Four Bytes of Power: Exploiting CVE-2021-26708 in the Linux kernel CVE-2021-26708 is assigned to five race condition bugs in the virtual socket implementation of the Linux kernel. I discovered and fixed them in January 2021. In this article I describe how to exploit them for local privilege escalation on Fedora 33 Server…
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