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[vnetorch] [vxlanorch] fix a set of memory usage issues #2352

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merged 2 commits into from
Jun 29, 2022
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[vnetorch] [vxlanorch] fix a set of memory usage issues #2352

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c8facad
[vnetorch] fix use-after-free in removeBfdSession()
Yakiv-Huryk Jun 23, 2022
0ff86ce
[vxlanorch] fix heap-buffer-overflow in updateRemoteEndPointIpRef()
Yakiv-Huryk Jun 23, 2022
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3 changes: 2 additions & 1 deletion orchagent/vnetorch.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1602,7 +1602,8 @@ void VNetRouteOrch::delEndpointMonitor(const string& vnet, NextHopGroupKey& next
if (nexthop_info_[vnet].find(ip) != nexthop_info_[vnet].end()) {
if (--nexthop_info_[vnet][ip].ref_count == 0)
{
removeBfdSession(vnet, nhk, nexthop_info_[vnet][ip].monitor_addr);
IpAddress monitor_addr = nexthop_info_[vnet][ip].monitor_addr;
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removeBfdSession(vnet, nhk, monitor_addr);
}
}
}
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3 changes: 2 additions & 1 deletion orchagent/vxlanorch.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1110,13 +1110,14 @@ void VxlanTunnel::updateRemoteEndPointIpRef(const std::string remote_vtep, bool
it->second.ip_refcnt++;
}
SWSS_LOG_DEBUG("Incrementing remote end point %s reference to %d", remote_vtep.c_str(),
it->second.ip_refcnt);
tnl_users_[remote_vtep].ip_refcnt);
}
else
{
if (it == tnl_users_.end())
{
SWSS_LOG_ERROR("Cannot decrement ref. End point not referenced %s", remote_vtep.c_str());
return;
}
it->second.ip_refcnt--;

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