diff options
| author | Kevin Krakauer <krakauer@google.com> | 2020-05-01 16:08:26 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-05-01 16:09:53 -0700 |
| commit | 5e1e61fbcbe8fa3cc8b104fadb8cdef3ad29c31f (patch) | |
| tree | dff4d88c41b32c8b2973ba0006d22c172c83e278 /pkg/tcpip/network/ipv6/ipv6.go | |
| parent | e7b8a71156b53f835c8d5ea01bdb1859e740649d (diff) | |
Automated rollback of changelist 308674219
PiperOrigin-RevId: 309491861
Diffstat (limited to 'pkg/tcpip/network/ipv6/ipv6.go')
| -rw-r--r-- | pkg/tcpip/network/ipv6/ipv6.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/pkg/tcpip/network/ipv6/ipv6.go b/pkg/tcpip/network/ipv6/ipv6.go index 82928fb66..daf1fcbc6 100644 --- a/pkg/tcpip/network/ipv6/ipv6.go +++ b/pkg/tcpip/network/ipv6/ipv6.go @@ -171,7 +171,11 @@ func (*endpoint) WriteHeaderIncludedPacket(r *stack.Route, pkt stack.PacketBuffe // HandlePacket is called by the link layer when new ipv6 packets arrive for // this endpoint. func (e *endpoint) HandlePacket(r *stack.Route, pkt stack.PacketBuffer) { - headerView := pkt.Data.First() + headerView, ok := pkt.Data.PullUp(header.IPv6MinimumSize) + if !ok { + r.Stats().IP.MalformedPacketsReceived.Increment() + return + } h := header.IPv6(headerView) if !h.IsValid(pkt.Data.Size()) { r.Stats().IP.MalformedPacketsReceived.Increment() |