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There was a logical race where Conn.Rebind could acquire the RebindingUDPConn mutex, close the connection, fail to rebind, release the mutex, and then because the mutex was no longer held, ReceiveIPv4 wouldn't retry reads that failed with net.ErrClosed, letting that error back to wireguard-go, which would then stop running that receive IP goroutine. Instead, keep the RebindingUDPConn mutex held for the entirety of the replacement in all cases. Updates tailscale/corp#1289 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com> |
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| discopingpurpose_string.go | ||
| legacy.go | ||
| magicsock_test.go | ||
| magicsock.go | ||