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LibWeb: Fix null pointer dereference in DOM::Node::remove()

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Instead of blindly dereferencing m_registered_observer_list, just use
the add_registered_observer() helper.

Fixes #22005
This commit is contained in:
Andreas Kling
2023-11-20 20:03:43 +01:00
parent 7320fdc1f5
commit cc9de38ea4
Notes: sideshowbarker 2024-07-17 08:27:05 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/cc9de38ea4
Pull-request: https://github.com/SerenityOS/serenity/pull/22007
Issue: https://github.com/SerenityOS/serenity/issues/22005
Reviewed-by: https://github.com/Lubrsi ✅
3 changed files with 15 additions and 1 deletions
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13
Tests/LibWeb/Text/input/MutationObserver/removing-a-node.html Normal file
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@@ -0,0 +1,13 @@
<body>
<script src="../include.js"></script>
<script>
test(() => {
let observer = new MutationObserver(function() {});
observer.observe(document.body, { attributes: true, childList: true, subtree: true });
let div = document.createElement("div");
document.body.appendChild(div);
div.remove();
println("PASS! (Didn't crash)");
});
</script>