From: David Ahern dsa@cumulusnetworks.com
This patch has been added to the stable tree. If you have any objections, please let us know.
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[ Upstream commit e37791ec1ad785b59022ae211f63a16189bacebf ]
When the mpls_router module is unloaded, mpls routes are deleted but notifications are not sent to userspace leaving userspace caches out of sync. Add the call to mpls_notify_route in mpls_net_exit as routes are freed.
Fixes: 0189197f44160 ("mpls: Basic routing support") Signed-off-by: David Ahern dsa@cumulusnetworks.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- net/mpls/af_mpls.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c index 1f93a5978f2a..398375098efb 100644 --- a/net/mpls/af_mpls.c +++ b/net/mpls/af_mpls.c @@ -1098,6 +1098,7 @@ static void mpls_net_exit(struct net *net) for (index = 0; index < platform_labels; index++) { struct mpls_route *rt = rtnl_dereference(platform_label[index]); RCU_INIT_POINTER(platform_label[index], NULL); + mpls_notify_route(net, index, rt, NULL, NULL); mpls_rt_free(rt); } rtnl_unlock();