net: TestFileConn/udp failures

[gopherbot]

#!watchflakes
default <- pkg == "net" && test == "TestFileConn/udp"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestFileConn/udp
    file_test.go:107: file file+net udp:127.0.0.1:60387->127.0.0.1:60386: getsockname: An invalid argument was supplied.
--- FAIL: TestFileConn/udp (0.00s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "net" && test == "TestFileConn/udp"

2026-02-24 02:46 gotip-windows-arm64 go@c5f1695f net.TestFileConn/udp (log)

=== RUN   TestFileConn/udp
    file_test.go:107: file file+net udp:127.0.0.1:60387->127.0.0.1:60386: getsockname: An invalid argument was supplied.
--- FAIL: TestFileConn/udp (0.00s)

— watchflakes