Abort polygon parsing early if we know the input is invalid

uber · Oct 13, 2024 · d3a5a77 · d3a5a77
1 parent ad7dddc
commit d3a5a77
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/apps/filters/h3.c b/src/apps/filters/h3.c
@@ -1222,6 +1222,10 @@ H3Error polygonStringToGeoPolygon(FILE *fp, char *polygonString,
             if (curDepth > maxDepth) {
                 maxDepth = curDepth;
             }
+            if (curDepth > 4) {
+                // This is beyond the depth for a valid input, so we abort early
+                return E_FAILED;
+            }
             strPos++;
             continue;
         }