Merge #19739

19739: gnrc/rpl: fix incorrect addition overflow check r=maribu a=szsam Co-authored-by: Mingjie Shen <[email protected]>
RIOT-OS · Jun 17, 2023 · 5bc5d70 · 5bc5d70
2 parents 5d32c95 + fe92f67
commit 5bc5d70
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/sys/net/gnrc/routing/rpl/of0.c b/sys/net/gnrc/routing/rpl/of0.c
@@ -69,7 +69,7 @@ uint16_t calc_rank(gnrc_rpl_dodag_t *dodag, uint16_t base_rank)
         add = CONFIG_GNRC_RPL_DEFAULT_MIN_HOP_RANK_INCREASE;
     }
 
-    if ((base_rank + add) < base_rank) {
+    if ((uint16_t)(base_rank + add) < base_rank) {
         return GNRC_RPL_INFINITE_RANK;
     }