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-rw-r--r--librpc/ndr/ndr.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/librpc/ndr/ndr.c b/librpc/ndr/ndr.c
index b6110d52b4..4d763e0ead 100644
--- a/librpc/ndr/ndr.c
+++ b/librpc/ndr/ndr.c
@@ -1253,11 +1253,17 @@ _PUBLIC_ enum ndr_err_code ndr_push_relative_ptr2_end(struct ndr_push *ndr, cons
}
if (len > 0) {
+ uint32_t clear_size = correct_offset - begin_offset;
+
+ clear_size = MIN(clear_size, len);
+
/* now move the marshalled buffer to the end of the main buffer */
memmove(ndr->data + correct_offset, ndr->data + begin_offset, len);
- /* and wipe out old buffer within the main buffer */
- memset(ndr->data + begin_offset, '\0', len);
+ if (clear_size) {
+ /* and wipe out old buffer within the main buffer */
+ memset(ndr->data + begin_offset, '\0', clear_size);
+ }
}
/* and set the end offset for the next buffer */