If a /32 route is entered in the RIB the code to traverse
will not see that a a end of the tree. This is due to trying
to do a negative shift which is an undefined in C.
Fix by checking for max depth as is already done in rib6.
Signed-off-by: Stephen Hemminger <step...@networkplumber.org>
---
lib/rib/rte_rib.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/rib/rte_rib.c b/lib/rib/rte_rib.c
index cd9e823068d2..0603980cabd2 100644
--- a/lib/rib/rte_rib.c
+++ b/lib/rib/rte_rib.c
@@ -71,6 +71,8 @@ is_covered(uint32_t ip1, uint32_t ip2, uint8_t depth)
static inline struct rte_rib_node *
get_nxt_node(struct rte_rib_node *node, uint32_t ip)
{
+ if (node->depth == RIB_MAXDEPTH)
+ return NULL;
return (ip & (1 << (31 - node->depth))) ? node->right : node->left;
}
--
2.35.1
