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netlink: ignore route updates with no destination #1437

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Merged
nbrownus merged 1 commit into from
Aug 25, 2025
Merged

netlink: ignore route updates with no destination #1437

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5 changes: 5 additions & 0 deletions overlay/tun_linux.go
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Original file line number Diff line number Diff line change
Expand Up @@ -638,6 +638,11 @@ func (t *tun) updateRoutes(r netlink.RouteUpdate) {
return
}

if r.Dst == nil {
t.l.WithField("route", r).Debug("Ignoring route update, no destination address")
return
}

dstAddr, ok := netip.AddrFromSlice(r.Dst.IP)
if !ok {
t.l.WithField("route", r).Debug("Ignoring route update, invalid destination address")
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