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-rw-r--r--src/H5Ocache.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/src/H5Ocache.c b/src/H5Ocache.c
index fba4f6e..578cff0 100644
--- a/src/H5Ocache.c
+++ b/src/H5Ocache.c
@@ -1390,7 +1390,8 @@ H5O__chunk_deserialize(H5O_t *oh, haddr_t addr, size_t len, const uint8_t *image
/* Message size */
UINT16DECODE(chunk_image, mesg_size);
- HDassert(mesg_size == H5O_ALIGN_OH(oh, mesg_size));
+ if(mesg_size != H5O_ALIGN_OH(oh, mesg_size))
+ HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, FAIL, "message not aligned")
/* Message flags */
flags = *chunk_image++;
@@ -1402,10 +1403,9 @@ H5O__chunk_deserialize(H5O_t *oh, haddr_t addr, size_t len, const uint8_t *image
HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, FAIL, "bad flag combination for message")
if((flags & H5O_MSG_FLAG_WAS_UNKNOWN) && !(flags & H5O_MSG_FLAG_MARK_IF_UNKNOWN))
HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, FAIL, "bad flag combination for message")
- if((flags & H5O_MSG_FLAG_SHAREABLE)
- && H5O_msg_class_g[id]
- && !(H5O_msg_class_g[id]->share_flags & H5O_SHARE_IS_SHARABLE))
- HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, FAIL, "message of unsharable class flagged as sharable")
+ /* Delay checking the "shareable" flag until we've made sure id
+ * references a valid message class that this version of the library
+ * knows about */
/* Reserved bytes/creation index */
if(oh->version == H5O_VERSION_1)
@@ -1517,9 +1517,17 @@ H5O__chunk_deserialize(H5O_t *oh, haddr_t addr, size_t len, const uint8_t *image
mesgs_modified = TRUE;
} /* end if */
} /* end if */
- else
+ else {
+ /* Check for message of unshareable class marked as "shareable"
+ */
+ if((flags & H5O_MSG_FLAG_SHAREABLE)
+ && H5O_msg_class_g[id]
+ && !(H5O_msg_class_g[id]->share_flags & H5O_SHARE_IS_SHARABLE))
+ HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, FAIL, "message of unshareable class flagged as shareable")
+
/* Set message class for "known" messages */
mesg->type = H5O_msg_class_g[id];
+ } /* end else */
/* Do some inspection/interpretation of new messages from this chunk */
/* (detect continuation messages, ref. count messages, etc.) */