target/linux/generic/patches-3.3/340-module_alloc_size_check.patch

   1 --- a/kernel/module.c
   2 +++ b/kernel/module.c
   3 @@ -2322,12 +2322,15 @@ static void dynamic_debug_remove(struct
   4
   5  void * __weak module_alloc(unsigned long size)
   6  {
   7 -       return size == 0 ? NULL : vmalloc_exec(size);
   8 +       return vmalloc_exec(size);
   9  }
  10
  11  static void *module_alloc_update_bounds(unsigned long size)
  12  {
  13 -       void *ret = module_alloc(size);
  14 +       void *ret = NULL;
  15 +
  16 +       if (size)
  17 +               ret = module_alloc(size);
  18
  19         if (ret) {
  20                 mutex_lock(&module_mutex);