diff options
author | Steve Huston <shuston@riverace.com> | 2020-05-29 22:05:47 +0000 |
---|---|---|
committer | Steve Huston <shuston@riverace.com> | 2020-05-29 22:05:47 +0000 |
commit | ca31d936b698d3e6e318668ac55f77f70f6d81c3 (patch) | |
tree | f1d29f749954f9b4a1983ce2429e9a6cc79d0df2 | |
parent | adced9754c8ffca51fdba3189775e7dc757fd02b (diff) | |
download | ATCD-riverace-case-2186.tar.gz |
Do not invoke a method on pointer returned from remove() without checking itriverace-case-2186
-rw-r--r-- | ACE/ace/Malloc_T.cpp | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/ACE/ace/Malloc_T.cpp b/ACE/ace/Malloc_T.cpp index 69a6e4398f3..0f966f99c8f 100644 --- a/ACE/ace/Malloc_T.cpp +++ b/ACE/ace/Malloc_T.cpp @@ -73,9 +73,8 @@ ACE_Cached_Allocator<T, ACE_LOCK>::malloc (size_t nbytes) if (nbytes > sizeof (T)) return 0; - // addr() call is really not absolutely necessary because of the way - // ACE_Cached_Mem_Pool_Node's internal structure arranged. - return this->free_list_.remove ()->addr (); + ACE_Cached_Mem_Pool_Node<T> *allocated = this->free_list_.remove (); + return allocated == 0 ? 0 : allocated->addr(); } template <class T, class ACE_LOCK> void * @@ -86,9 +85,8 @@ ACE_Cached_Allocator<T, ACE_LOCK>::calloc (size_t nbytes, if (nbytes > sizeof (T)) return 0; - // addr() call is really not absolutely necessary because of the way - // ACE_Cached_Mem_Pool_Node's internal structure arranged. - void *ptr = this->free_list_.remove ()->addr (); + ACE_Cached_Mem_Pool_Node<T> *allocated = this->free_list_.remove (); + void *ptr = allocated == 0 ? 0 : allocated->addr(); if (ptr != 0) ACE_OS::memset (ptr, initial_value, sizeof (T)); return ptr; @@ -147,9 +145,8 @@ ACE_Dynamic_Cached_Allocator<ACE_LOCK>::malloc (size_t nbytes) if (nbytes > chunk_size_) return 0; - // addr() call is really not absolutely necessary because of the way - // ACE_Cached_Mem_Pool_Node's internal structure arranged. - return this->free_list_.remove ()->addr (); + ACE_Cached_Mem_Pool_Node<char> *allocated = this->free_list_.remove (); + return allocated == 0 ? 0 : allocated->addr(); } template <class ACE_LOCK> void * @@ -160,9 +157,8 @@ ACE_Dynamic_Cached_Allocator<ACE_LOCK>::calloc (size_t nbytes, if (nbytes > chunk_size_) return 0; - // addr() call is really not absolutely necessary because of the way - // ACE_Cached_Mem_Pool_Node's internal structure arranged. - void *ptr = this->free_list_.remove ()->addr (); + ACE_Cached_Mem_Pool_Node<char> *allocated = this->free_list_.remove (); + void *ptr = allocated == 0 ? 0 : allocated->addr(); if (ptr != 0) ACE_OS::memset (ptr, initial_value, chunk_size_); return ptr; |