Added a check to avoid integer underflow.

Change-Id: I68962e09d1c2c8ef367a4766c23e7b15cf1e6dc1
Signed-off-by: Deepak Singh <deepak.sn@samsung.com>

diff --git a/dbus/dbus-marshal-gvariant.c b/dbus/dbus-marshal-gvariant.c
index 85e53cd..7a456c0 100644 (file)
--- a/dbus/dbus-marshal-gvariant.c
+++ b/dbus/dbus-marshal-gvariant.c
@@ -231,6 +231,9 @@ _dbus_header_fill_cache (DBusHeader *header,
   if (get_header_array_size (header) > 0)
   {
     header->fields[get_field_after (array_buffer, 0)].value_pos = FIELD_ID_SIZE + FIRST_GVARIANT_FIELD_OFFSET;
+    if (n_fields_offsets == 0)
+      return;
+
     for (i=0; i < n_fields_offsets-1; i++)
     {
       dbus_uint64_t field = get_field_after (array_buffer, fields_offsets[i]);