From 43abb24657e737dee1108ff0d512b2e1b6d8a3f6 Mon Sep 17 00:00:00 2001 From: Nayana Bidari Date: Mon, 2 Mar 2020 16:30:51 -0800 Subject: Fix panic caused by invalid address for Bind in packet sockets. PiperOrigin-RevId: 298476533 --- pkg/sentry/socket/netstack/netstack.go | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'pkg/sentry') diff --git a/pkg/sentry/socket/netstack/netstack.go b/pkg/sentry/socket/netstack/netstack.go index 1eeb37446..13a9a60b4 100644 --- a/pkg/sentry/socket/netstack/netstack.go +++ b/pkg/sentry/socket/netstack/netstack.go @@ -712,6 +712,10 @@ func (s *SocketOperations) Connect(t *kernel.Task, sockaddr []byte, blocking boo // Bind implements the linux syscall bind(2) for sockets backed by // tcpip.Endpoint. func (s *SocketOperations) Bind(t *kernel.Task, sockaddr []byte) *syserr.Error { + if len(sockaddr) < 2 { + return syserr.ErrInvalidArgument + } + family := usermem.ByteOrder.Uint16(sockaddr) var addr tcpip.FullAddress -- cgit v1.2.3