Problem Statement/Rationale

There is a memory leak if invalid javascript statements are executed using mongosh. Eventually, the JS interpreter complains that GC is ineffective and OOMs.

Please be sure to attach relevant logs with any sensitive data redacted.
How to retrieve logs for: Compass; Shell

Steps to Reproduce

Pipe the output of the following script to mongosh --nodb

for i in range(1,1000000):
    print("a={'a':'b'} {'c', 'd'};"); 

Expected Results

I expect memory usage to remain constant as mongosh is executing commands.

Actual Results

Memory usage increases in a very obvious way as observed using top, followed by a JavaScript VM OOM and process exit.

Additional Notes

This seems to affect only syntax errors. If the script is syntactically valid but has other errors, e.g. a=no_such_variable, the memory usage remains constant.

If mongosh and mongod are sharing a bunch of codebase, is it possible that a similar leak also affects mongod?