Use after free in Sharing in Google Chrome prior to 91.0.4472.114 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page and user gesture.
https://security.gentoo.org/glsa/202107-06
https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop_17.html