Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: ae1111af5882a35dafa88dda632bcaa89e6c8b0f
https://github.com/WebKit/WebKit/commit/ae1111af5882a35dafa88dda632bcaa89e6c8b0f
Author: Brady Eidson <[email protected]>
Date: 2025-12-17 (Wed, 17 Dec 2025)
Changed paths:
M Source/WebCore/dom/messageports/MessagePortChannel.cpp
M Tools/TestWebKitAPI/Tests/WebKitCocoa/MessagePortProviders.mm
Log Message:
-----------
Transferring buffers to a closed MessageChannel causes memory leaks in Safari
Networking
rdar://138550781
https://bugs.webkit.org/show_bug.cgi?id=281662
Reviewed by Ben Nham.
The networking process buffers MessageChannel messages for later retrieval by
the appropriate web process.
Even if the target port is closed.
The fix is to skip those messages that will never be delivered.
Test: Tools/TestWebKitAPI/Tests/WebKitCocoa/MessagePortProviders.mm
* Source/WebCore/dom/messageports/MessagePortChannel.cpp:
(WebCore::MessagePortChannel::postMessageToRemote):
* Tools/TestWebKitAPI/Tests/WebKitCocoa/MessagePortProviders.mm:
(TestWebKitAPI:: const):
(TestWebKitAPI::setInterval):
(TestWebKitAPI::MessageToClosedPort)): Doing some memory math and pid
comparison, we can regression test this!
Canonical link: https://commits.webkit.org/304642@main
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