diff options
| -rw-r--r-- | pkg/sentry/socket/hostinet/stack.go | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/pkg/sentry/socket/hostinet/stack.go b/pkg/sentry/socket/hostinet/stack.go index 1902fe155..3a4fdec47 100644 --- a/pkg/sentry/socket/hostinet/stack.go +++ b/pkg/sentry/socket/hostinet/stack.go @@ -203,8 +203,14 @@ func ExtractHostRoutes(routeMsgs []syscall.NetlinkMessage) ([]inet.Route, error) inetRoute.DstAddr = attr.Value case syscall.RTA_SRC: inetRoute.SrcAddr = attr.Value - case syscall.RTA_OIF: + case syscall.RTA_GATEWAY: inetRoute.GatewayAddr = attr.Value + case syscall.RTA_OIF: + expected := int(binary.Size(inetRoute.OutputInterface)) + if len(attr.Value) != expected { + return nil, fmt.Errorf("RTM_GETROUTE returned RTM_NEWROUTE message with invalid attribute data length (%d bytes, expected %d bytes)", len(attr.Value), expected) + } + binary.Unmarshal(attr.Value, usermem.ByteOrder, &inetRoute.OutputInterface) } } |