conn: close old fd before trying again

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-02-10 00:43:31 +01:00
parent 484a9fd324
commit aabc3770ba
2 changed files with 2 additions and 0 deletions
--- a/conn/conn_linux.go
+++ b/conn/conn_linux.go
@@ -123,6 +123,7 @@ again:
 	bind.sock4, newPort, err = create4(port)
 	if err != nil {
 		if originalPort == 0 && err == syscall.EADDRINUSE && tries < 100 {
+			unix.Close(bind.sock6)
 			tries++
 			goto again
 		}