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Fix: potential crash by bad UDP address (#238)

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xjasonlyu
2023-03-30 14:11:43 +08:00
parent 3b343600e7
commit 195290884c
1 changed files with 4 additions and 0 deletions
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proxy/socks5.go
+4
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@@ -121,6 +121,10 @@ func (ss *Socks5) DialUDP(*M.Metadata) (_ net.PacketConn, err error) {
}()
bindAddr := addr.UDPAddr()
if bindAddr == nil {
return nil, fmt.Errorf("invalid UDP binding address: %#v", addr)
}
if bindAddr.IP.IsUnspecified() { /* e.g. "0.0.0.0" or "::" */
udpAddr, err := net.ResolveUDPAddr("udp", ss.Addr())
if err != nil {