Closed Bug 1257164 Opened 5 years ago Closed 5 years ago

JSON.stringify hangs the browser

Categories

(Core :: JavaScript Engine, defect)

46 Branch
defect
Not set
critical

Tracking

()

RESOLVED FIXED
mozilla48
Tracking Status
firefox48 --- fixed

People

(Reporter: nxrighthere, Assigned: Waldo)

Details

(Keywords: hang)

Attachments

(1 file)

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:46.0) Gecko/20100101 Firefox/46.0
Build ID: 20160314144540

Steps to reproduce:

Code:
var x = []; x[0x7fffffff]=1;
JSON.stringify(x);

Demo:
https://jsfiddle.net/kLbf880o/6/


Actual results:

Execution of this code constantly hangs the browser.
Component: Untriaged → JavaScript Engine
Keywords: hang
Product: Firefox → Core
Severity: normal → critical
Summary: JSON.stringify() hangs the browser → JSON.stringify hangs the browser
Attached patch PatchSplinter Review
Attachment #8740128 - Flags: review?(evilpies)
Assignee: nobody → jwalden+bmo
Status: UNCONFIRMED → ASSIGNED
Ever confirmed: true
Comment on attachment 8740128 [details] [diff] [review]
Patch

Review of attachment 8740128 [details] [diff] [review]:
-----------------------------------------------------------------

Uh <3 JS :/
Attachment #8740128 - Flags: review?(evilpies) → review+
https://hg.mozilla.org/mozilla-central/rev/1e6cb22a8971
Status: ASSIGNED → RESOLVED
Closed: 5 years ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla48
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