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-rw-r--r--src/H5HGcache.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/H5HGcache.c b/src/H5HGcache.c
index 4422fb9..7ae0cd4 100644
--- a/src/H5HGcache.c
+++ b/src/H5HGcache.c
@@ -190,6 +190,7 @@ H5HG__cache_heap_get_final_load_size(const void *image, size_t image_len, void *
HDassert(image_len == H5HG_MINSIZE);
/* Deserialize the heap's header */
+ heap.size = 0;
if (H5HG__hdr_deserialize(&heap, (const uint8_t *)image, image_len, (const H5F_t *)udata) < 0)
HGOTO_ERROR(H5E_HEAP, H5E_CANTDECODE, FAIL, "can't decode global heap prefix")