[ci-scan] Test failure: SocketBlockingModeTransitionTests.ConnectAsync_WithBuffer_Succeeds on android-arm64 NativeAOT

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Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1436493
Build error leg or test failing: android-arm64 Release NativeAOT-System.Net.Sockets.Tests

Error Details

SocketBlockingModeTransitionTests.ConnectAsync_WithBuffer_Succeeds consistently fails on android-arm64 NativeAOT (runtime-extra-platforms, definition 154). The test asserts that after ConnectAsync with a pre-connect buffer completes, the socket's Blocking property returns false, but on Android it returns true.

Previous KBE dotnet#128141 was closed as duplicate on 2026-05-27. The failure persists (24h hit count: 2, 7-day: 18, 1-month: 39 as of closure).

Linked-tracker: integrity-filtered (dotnet#125825), needs human review.

[FAIL] System.Net.Sockets.Tests.SocketBlockingModeTransitionTests.ConnectAsync_WithBuffer_Succeeds
Assert.False() Failure
Expected: False
Actual:   True
   at System.Net.Sockets.Tests.SocketBlockingModeTransitionTests.<ConnectAsync_WithBuffer_Succeeds>d__10.MoveNext() in /_/src/libraries/System.Net.Sockets/tests/FunctionalTests/Connect.Unix.cs:line 229

Error Message

{
  "ErrorMessage": ["SocketBlockingModeTransitionTests.ConnectAsync_WithBuffer_Succeeds", "Assert.False() Failure"],
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

First build it occurred: 1416787 (2026-05-12). Persistent across the entire scanned window; true origin may predate 2026-05-12.

Note

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