diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 4588910..856123f 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1911,7 +1911,7 @@
 	struct rtattr *mp_head;
 
 	/* If cache is unresolved, don't try to parse IIF and OIF */
-	if (c->mfc_parent > MAXVIFS)
+	if (c->mfc_parent >= MAXVIFS)
 		return -ENOENT;
 
 	if (VIF_EXISTS(mrt, c->mfc_parent))