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-rw-r--r--src/H5Fprivate.h2
-rw-r--r--src/H5Pfcpl.c6
2 files changed, 8 insertions, 0 deletions
diff --git a/src/H5Fprivate.h b/src/H5Fprivate.h
index fe81edc..4cd8c69 100644
--- a/src/H5Fprivate.h
+++ b/src/H5Fprivate.h
@@ -488,6 +488,8 @@
if it is changed, the code
must compensate. -QAK
*/
+#define HDF5_BTREE_IK_MAX_ENTRIES 65536 /* 2^16 - 2 bytes for storing entries (children) */
+ /* See format specification on version 1 B-trees */
/* Default file space handling strategy */
#define H5F_FILE_SPACE_STRATEGY_DEF H5F_FILE_SPACE_ALL
diff --git a/src/H5Pfcpl.c b/src/H5Pfcpl.c
index aca589c..5fc93fd 100644
--- a/src/H5Pfcpl.c
+++ b/src/H5Pfcpl.c
@@ -517,6 +517,9 @@ H5Pset_sym_k(hid_t plist_id, unsigned ik, unsigned lk)
/* Set values */
if (ik > 0) {
+ if((ik * 2) >= HDF5_BTREE_IK_MAX_ENTRIES)
+ HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "istore IK value exceeds maximum B-tree entries");
+
if(H5P_get(plist, H5F_CRT_BTREE_RANK_NAME, btree_k) < 0)
HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get rank for btree interanl nodes");
btree_k[H5B_SNODE_ID] = ik;
@@ -614,6 +617,9 @@ H5Pset_istore_k(hid_t plist_id, unsigned ik)
if (ik == 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "istore IK value must be positive");
+ if((ik * 2) >= HDF5_BTREE_IK_MAX_ENTRIES)
+ HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "istore IK value exceeds maximum B-tree entries");
+
/* Get the plist structure */
if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_CREATE)))
HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");