CVE-2020-27786

This is a working proof-of-concept exploit for CVE-2020-27786, a race condition vulnerability in the Linux kernel leading to a write Use-After-Free. The exploit uses userfaultfd to extend the race window and leverages msg_msg to leak kernel addresses and obtain a write primitive, ultimately overwriting modprobe_path to achieve privilege escalation.

This exploit leverages a use-after-free vulnerability in the Linux kernel's ALSA rawmidi subsystem (CVE-2020-27786) to achieve local privilege escalation. It employs userfaultfd for memory manipulation and ROP to bypass KASLR and SMAP, ultimately executing a root shell.

The repository contains documentation files from a Linux kernel version 4.19.72, specifically focusing on ABI stability, admin guides, and hardware-specific documentation. No exploit code or proof-of-concept is present in the provided files.

The repository only contains a README.md with basic compilation instructions for a CMake project, lacking any actual exploit code or technical details about CVE-2020-27786.