Fix bug in finalized allocation.

* fnlz_mlc.c (GC_register_disclaim_proc): Make sure to re-read our
GC_size_map entry after calling GC_generic_malloc, in case it had to be
extended.

1 files changed, 3 insertions, 0 deletions

diff --git a/fnlz_mlc.c b/fnlz_mlc.c
index 12767aa5..763d3b0c 100644
--- a/fnlz_mlc.c
+++ b/fnlz_mlc.c
@@ -102,12 +102,15 @@ GC_API void GC_CALL GC_register_disclaim_proc(int kind, GC_disclaim_proc proc,
             op = GC_generic_malloc((word)lb, GC_finalized_kind);
             if (NULL == op)
                 return NULL;
+            /* GC_generic_malloc have have extended the size map for us. */
+            lg = GC_size_map[lb];
         } else {
             *opp = obj_link(op);
             obj_link(op) = 0;
             GC_bytes_allocd += GRANULES_TO_BYTES(lg);
             UNLOCK();
         }
+        GC_ASSERT(lg > 0);
         ((const void **)op)[GRANULES_TO_WORDS(lg) - 1] = fclos;
     } else {
         size_t op_sz;