diff options
Diffstat (limited to 'pkg/tcpip/transport/udp')
| -rw-r--r-- | pkg/tcpip/transport/udp/endpoint.go | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/pkg/tcpip/transport/udp/endpoint.go b/pkg/tcpip/transport/udp/endpoint.go index 6ed805357..840e95302 100644 --- a/pkg/tcpip/transport/udp/endpoint.go +++ b/pkg/tcpip/transport/udp/endpoint.go @@ -15,6 +15,7 @@ package udp import ( + "math" "sync" "gvisor.googlesource.com/gvisor/pkg/sleep" @@ -264,6 +265,11 @@ func (e *endpoint) Write(p tcpip.Payload, opts tcpip.WriteOptions) (uintptr, <-c return 0, nil, tcpip.ErrInvalidOptionValue } + if p.Size() > math.MaxUint16 { + // Payload can't possibly fit in a packet. + return 0, nil, tcpip.ErrMessageTooLong + } + to := opts.To e.mu.RLock() |