X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=hivex%2Fhivex.c;h=71d9c29fed920fe475cc81577d1a6bc443876459;hb=d2d21f3ca639241bbaf9be7f07172925db97c155;hp=81767adbab17a80d652d512b6a63993ea086c140;hpb=8459c511c3650dd64581d0e3a002afd18a621d38;p=hivex.git

diff --git a/hivex/hivex.c b/hivex/hivex.c
index 81767ad..71d9c29 100644
--- a/hivex/hivex.c
+++ b/hivex/hivex.c
@@ -1187,7 +1187,7 @@ hivex_value_value (hive_h *h, hive_value_h value,
 
   /* Check that the declared size isn't larger than the block its in. */
   size_t blen = block_len (h, data_offset, NULL);
-  if (len > blen) {
+  if (len > blen - 4 /* subtract 4 for block header */) {
     if (h->msglvl >= 2)
       fprintf (stderr, "hivex_value_value: returning EFAULT because data is longer than its block (data 0x%zx, data len %zu, block len %zu)\n",
                data_offset, len, blen);