Spidermonkey - IonMonkey Unexpected ObjectGroup in ObjectGroupDispatch Operation

Spidermonkey - IonMonkey Unexpected ObjectGroup in ObjectGroupDispatch Operation While fuzzing Spidermonkey, I encountered the following commented and modified JavaScript program which crashes debug builds of the latest release version of Spidermonkey from commit...

Spidermonkey - IonMonkey Type Inference is Incorrect for Constructors Entered via OSR

/ Spidermonkey - IonMonkey Type Inference is Incorrect for Constructors Entered via OSR A bug in IonMonkeys type inference system when JIT compiling and entering a constructor function via on-stack replacement OSR allows the compilation of JITed functions that cause type confusions between...

SpiderMonkey IonMonkey Type Confusion

Spidermonkey: IonMonkey's type inference is incorrect for constructors entered via OSR Related CVE Numbers: CVE-2019-9791. A bug in IonMonkeys type inference system when JIT compiling and entering a constructor function via on-stack replacement OSR allows the compilation of JITed functions that...

Spidermonkey - IonMonkey Type Inference is Incorrect for Constructors Entered via OSR

Spidermonkey - IonMonkey Type Inference is Incorrect for Constructors Entered via OSR / A bug in IonMonkeys type inference system when JIT compiling and entering a constructor function via on-stack replacement OSR allows the compilation of JITed functions that cause type confusions between...

Spidermonkey - IonMonkey Type Inference is Incorrect for Constructors Entered via OSR

/ A bug in IonMonkeys type inference system when JIT compiling and entering a constructor function via on-stack replacement OSR allows the compilation of JITed functions that cause type confusions between arbitrary objects. Prerequisites: 1. Spidermonkey can represent "plain" objects either as...