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-rw-r--r--pkg/tcpip/network/ipv4/icmp.go14
1 files changed, 13 insertions, 1 deletions
diff --git a/pkg/tcpip/network/ipv4/icmp.go b/pkg/tcpip/network/ipv4/icmp.go
index 74e70e283..2b7bc0dd0 100644
--- a/pkg/tcpip/network/ipv4/icmp.go
+++ b/pkg/tcpip/network/ipv4/icmp.go
@@ -120,6 +120,18 @@ func (*icmpv4FragmentationNeededSockError) Kind() stack.TransportErrorKind {
return stack.PacketTooBigTransportError
}
+func (e *endpoint) checkLocalAddress(addr tcpip.Address) bool {
+ if e.nic.Spoofing() {
+ return true
+ }
+
+ if addressEndpoint := e.AcquireAssignedAddress(addr, false, stack.NeverPrimaryEndpoint); addressEndpoint != nil {
+ addressEndpoint.DecRef()
+ return true
+ }
+ return false
+}
+
// handleControl handles the case when an ICMP error packet contains the headers
// of the original packet that caused the ICMP one to be sent. This information
// is used to find out which transport endpoint must be notified about the ICMP
@@ -139,7 +151,7 @@ func (e *endpoint) handleControl(errInfo stack.TransportError, pkt *stack.Packet
// Drop packet if it doesn't have the basic IPv4 header or if the
// original source address doesn't match an address we own.
srcAddr := hdr.SourceAddress()
- if e.protocol.stack.CheckLocalAddress(e.nic.ID(), ProtocolNumber, srcAddr) == 0 {
+ if !e.checkLocalAddress(srcAddr) {
return
}