https://git.ruby-lang.org/ruby.git/commit/?id=79d9528ddc

From 79d9528ddca1dfe2dd99287dc88fd7c2b30f7137 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Fri, 22 May 2020 06:50:23 +0900
Subject: Fixed potential memory leak

Create a wrapper object first, then buffer allocation which can
fail.

diff --git a/compile.c b/compile.c
index 1159a9d..a4328d0 100644
--- a/compile.c
+++ b/compile.c
@@ -9721,12 +9721,13 @@ static VALUE https://github.com/ruby/ruby/blob/trunk/compile.c#L9721
 pinned_list_new(long size)
 {
     struct pinned_list * ptr;
+    VALUE obj_list =
+        TypedData_Make_Struct(0, struct pinned_list, &pinned_list_type, ptr);
 
-    ptr = xmalloc(sizeof(struct pinned_list));
-    ptr->size = size;
     ptr->buffer = xcalloc(size, sizeof(VALUE));
+    ptr->size = size;
 
-    return TypedData_Wrap_Struct(0, &pinned_list_type, ptr);
+    return obj_list;
 }
 
 static ibf_offset_t
diff --git a/lib/rubygems/installer.rb b/lib/rubygems/installer.rb
index cf67685..cce2967 100644
--- a/lib/rubygems/installer.rb
+++ b/lib/rubygems/installer.rb
@@ -189,6 +189,7 @@ class Gem::Installer https://github.com/ruby/ruby/blob/trunk/lib/rubygems/installer.rb#L189
     if options[:user_install]
       @gem_home = Gem.user_dir
       @bin_dir = Gem.bindir gem_home unless options[:bin_dir]
+      @plugins_dir = Gem.plugindir(gem_home)
       check_that_user_bin_dir_is_in_path
     end
   end
-- 
cgit v0.10.2


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