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Type:
Bug
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Resolution: Unresolved
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Priority:
Major - P3
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None
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Affects Version/s: None
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Component/s: AsyncWriter
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None
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8
Originally reported as https://jira.mongodb.org/browse/SECURITY-789. Looks like both node.js REPL and the legacy shell had more graceful handling for maximum call stack size errors. MongoSH crashes, occasionally reporting a blob of generated code.
To reproduce:
function countdown(x) { if (!x) { return; } return countdown(x - 1); }
Mongosh:
> countdown(100000)
REPL2:30
const _arv = (async () => {
^
RangeError: Maximum call stack size exceeded
(Use `node --trace-uncaught ...` to show where the exception was thrown)
Node.js REPL:
> countdown(100000)
Uncaught RangeError: Maximum call stack size exceeded
at countdown (REPL1:1:25)
at countdown (REPL1:1:52)
at countdown (REPL1:1:52)
at countdown (REPL1:1:52)
at countdown (REPL1:1:52)
at countdown (REPL1:1:52)
at countdown (REPL1:1:52)
at countdown (REPL1:1:52)
at countdown (REPL1:1:52)
at countdown (REPL1:1:52)
Legacy Shell
> countdown(100000) uncaught exception: InternalError: too much recursion : countdown@(shell):1:52 ... countdown@(shell):1:52 countdown@(shell):1:52 countdown@(shell):1:52 >
Example from https://jira.mongodb.org/browse/SECURITY-789:
> function testFn(){
... let myrecursiveFn = () => {
..... let y = UUID();
..... return myrecursiveFn(1)
..... };
... let x = myrecursiveFn(1);
... return x;
... };
> testFn();
undefined:1
var MongoshAsyncWriterError;function _slicedToArray(arr,i){"<async_rewriter>00660075006e006300740069006f006e0020005f0073006c00690063006500640054006f004100720072006100790028006100720072002c0020006900290020007b000a0020002000720065007400750072006e0020005f0061007200720061007900570069007400680048006f006c00650073002800610072007200290020007c007c0020005f006900740065007200610062006c00650054006f00410072007200610079004c0069006d006900740028006100720072002c0020006900290020007c007c0020005f0075006e0073007500700070006f0072007400650064004900740065007200610062006c00650054006f004100720072006100790028006100720072002c0020006900290020007c007c0020005f006e006f006e004900740065007200610062006c0065005200650073007400280029003b000a007d</>";const _sp=Symbol.for("@@mongosh.syntheticPromise")
....
err);{if(_fs7==="sync"){_srv7=err;_fs7="threw";}else throw err;}}finally{if(_fs7!=="threw")_fs7="returned";}})();if(_fs7==="returned")return _srv7;else if(_fs7==="threw")throw _srv7;_fs7="async";return _msp7(_arv7);})();
RangeError: Maximum call stack size exceeded
(Use `node --trace-uncaught ...` to show where the exception was thrown)
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