Add entry for CVE-2022-42928

Author: Samuel Groß

README.md

@@ -170,6 +170,7 @@ The following is a list of some of the bugs found with the help of Fuzzilli. Onl
 * [CVE-2019-9813](https://bugs.chromium.org/p/project-zero/issues/detail?id=1810): IonMonkey compiled code fails to update inferred property types, leading to type confusions
 * [CVE-2019-11707](https://bugs.chromium.org/p/project-zero/issues/detail?id=1820): IonMonkey incorrectly predicts return type of Array.prototype.pop, leading to type confusions
 * [CVE-2020-15656](https://bugzilla.mozilla.org/show_bug.cgi?id=1647293): Type confusion for special arguments in IonMonkey
+* [CVE-2022-42928](https://bugzilla.mozilla.org/show_bug.cgi?id=1791520): Missing KeepAlive annotations for some BigInt operations may lead to memory corruption
 
 #### Chromium/v8