Please see https://www.crowdstrike.com/blog/exploiting-cve-2021-3490-for-container-escapes/
__ __ _____ ____ __ / //_/|__ / / __ \ ___ _____ ___ ____ _ _____ _____ / /_ / ,< /_ < / /_/ // _ \ / ___// _ \ / __ `// ___// ___// __ \ / /| | ___/ / / _, _// __/(__ )/ __// /_/ // / / /__ / / / / /_/ |_|/____/ /_/ |_| \___//____/ \___/ \__,_//_/ \___//_/ /_/
Please see https://www.crowdstrike.com/blog/exploiting-cve-2021-3490-for-container-escapes/