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| author | gVisor bot <gvisor-bot@google.com> | 2020-11-06 09:52:00 +0000 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-11-06 09:52:00 +0000 |
| commit | de70ee3adac521f19bd9ba9749876911f1a4ff5b (patch) | |
| tree | d8ac7dfe4a8a4289d75210774fafdce237360765 /pkg | |
| parent | b3337f75897ef1e7df757357c01bbc714f17104f (diff) | |
| parent | 955e09dfbdb8a4cdae0a0b625001a567f6f15758 (diff) | |
Merge release-20201030.0-40-g955e09dfb (automated)
Diffstat (limited to 'pkg')
| -rw-r--r-- | pkg/tcpip/transport/udp/endpoint.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/pkg/tcpip/transport/udp/endpoint.go b/pkg/tcpip/transport/udp/endpoint.go index 56bdf6c34..9bcb918bb 100644 --- a/pkg/tcpip/transport/udp/endpoint.go +++ b/pkg/tcpip/transport/udp/endpoint.go @@ -487,6 +487,11 @@ func (e *endpoint) write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, <-c nicID = e.BindNICID } + if to.Port == 0 { + // Port 0 is an invalid port to send to. + return 0, nil, tcpip.ErrInvalidEndpointState + } + dst, netProto, err := e.checkV4MappedLocked(*to) if err != nil { return 0, nil, err |