BLI_memarena: unpoison memory before freeing it

2019-05-16 18:19:04 +02:00 · 2019-05-16 18:19:04 +02:00 · a7542b9e2b
parent 4878b29b49
commit a7542b9e2b
1 changed files with 4 additions and 0 deletions
--- a/source/blender/blenlib/intern/BLI_memarena.c
+++ b/source/blender/blenlib/intern/BLI_memarena.c
@ -77,6 +77,10 @@ static void memarena_buf_free_all(struct MemBuf *mb)
 {
  while (mb != NULL) {
    struct MemBuf *mb_next = mb->next;
+
+    /* Unpoison memory because MEM_freeN might overwrite it. */
+    ASAN_UNPOISON_MEMORY_REGION(mb, (uint)MEM_allocN_len(mb));
+
    MEM_freeN(mb);
    mb = mb_next;
  }