Proof of concept for a logic bug in the implementation of the garbage collector (GC) in v8 (the JavaScript interpreter of Chrome). The exploit poc.js is tested on v8 version 9.4.146.16 (commit 452f57b), which is the version shipped with Chrome 94.0.4606.61, the one before the bug was fixed, on Ubuntu 20.04.
9bcd05375f4716e560bf2a6e62f7e0eed58e6eb6f38f4070b6205036e9ca28ca