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git.ipfire.org Git - thirdparty/glibc.git/commit - NEWS
malloc: Prevent arena free_list from turning cyclic [BZ #19048]
[BZ# 19048]
* malloc/malloc.c (struct malloc_state): Update comment. Add
attached_threads member.
(main_arena): Initialize attached_threads.
* malloc/arena.c (list_lock): Update comment.
(ptmalloc_lock_all, ptmalloc_unlock_all): Likewise.
(ptmalloc_unlock_all2): Reinitialize arena reference counts.
(deattach_arena): New function.
(_int_new_arena): Initialize arena reference count and deattach
replaced arena.
(get_free_list, reused_arena): Update reference count and deattach
replaced arena.
(arena_thread_freeres): Update arena reference count and only put
unreferenced arenas on the free list.