ripd, ripngd: fix null pointer dereference in YANG RPCs

These RPCs should do nothing when RIP/RIPng aren't configured.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>

diff --git a/ripd/rip_northbound.c b/ripd/rip_northbound.c
index 4e445bd46df4bddab4cc14b084d4551a44b99506..49bf90198a21c56885f79f2588b9b42abc64f7ea 100644 (file)
--- a/ripd/rip_northbound.c
+++ b/ripd/rip_northbound.c
@@ -1228,6 +1228,9 @@ static int clear_rip_route_rpc(const char *xpath, const struct list *input,
        struct list *list;
        struct listnode *listnode;
 
+       if (!rip)
+               return NB_OK;
+
        /* Clear received RIP routes */
        for (rp = route_top(rip->table); rp; rp = route_next(rp)) {
                list = rp->info;

diff --git a/ripngd/ripng_northbound.c b/ripngd/ripng_northbound.c
index 7993714e8d3540a5c93cfe380320651032239049..69e207f443c3b18c90ff08a0e8598925e2967375 100644 (file)
--- a/ripngd/ripng_northbound.c
+++ b/ripngd/ripng_northbound.c
@@ -785,6 +785,9 @@ static int clear_ripng_route_rpc(const char *xpath, const struct list *input,
        struct list *list;
        struct listnode *listnode;
 
+       if (!ripng)
+               return NB_OK;
+
        /* Clear received RIPng routes */
        for (rp = agg_route_top(ripng->table); rp; rp = agg_route_next(rp)) {
                list = rp->info;