diff -ur nginx-1.13.6/src/core/nginx.c nginx-1.13.6-patched/src/core/nginx.c
--- nginx-1.13.6/src/core/nginx.c	2017-12-16 12:04:13.923270925 -0800
+++ nginx-1.13.6-patched/src/core/nginx.c	2017-12-16 12:03:55.013934545 -0800
@@ -198,6 +198,7 @@
 static u_char      *ngx_conf_file;
 static u_char      *ngx_conf_params;
 static char        *ngx_signal;
+ngx_pool_t         *saved_init_cycle_pool = NULL;
 
 
 static char **ngx_os_environ;
@@ -265,6 +266,8 @@
         return 1;
     }
 
+    saved_init_cycle_pool = init_cycle.pool;
+
     if (ngx_save_argv(&init_cycle, argc, argv) != NGX_OK) {
         return 1;
     }
diff -ur nginx-1.13.6/src/core/ngx_core.h nginx-1.13.6-patched/src/core/ngx_core.h
--- nginx-1.13.6/src/core/ngx_core.h	2017-10-10 08:22:51.000000000 -0700
+++ nginx-1.13.6-patched/src/core/ngx_core.h	2017-12-16 12:03:55.013934545 -0800
@@ -108,4 +108,6 @@
 #define NGX_DISABLE_SYMLINKS_NOTOWNER   2
 #endif
 
+extern ngx_pool_t        *saved_init_cycle_pool;
+
 #endif /* _NGX_CORE_H_INCLUDED_ */
diff -ur nginx-1.13.6/src/os/unix/ngx_process_cycle.c nginx-1.13.6-patched/src/os/unix/ngx_process_cycle.c
--- nginx-1.13.6/src/os/unix/ngx_process_cycle.c	2017-12-16 12:04:13.901271675 -0800
+++ nginx-1.13.6-patched/src/os/unix/ngx_process_cycle.c	2017-12-16 12:03:55.027933951 -0800
@@ -785,6 +785,10 @@
 
     ngx_destroy_pool(cycle->pool);
 
+    if (saved_init_cycle_pool != NULL && saved_init_cycle_pool != cycle->pool) {
+        ngx_destroy_pool(saved_init_cycle_pool);
+    }
+
     exit(0);
 }