fork and fork bomb moved in from cpp-cheat

userland/posix/fork_bomb.c

@@ -0,0 +1,13 @@
+/* https://cirosantilli.com/linux-kernel-module-cheat#fork-bomb */
+
+#define _XOPEN_SOURCE 700
+#include <string.h>
+#include <unistd.h>
+
+int main(int argc, char **argv) {
+    if (argc > 1 && strcmp(argv[1], "danger") == 0) {
+        while (1) {
+            fork();
+        }
+    }
+}