fts: Fix buffer overflow when reading oversized fts header

diff --git a/src/plugins/fts/fts-api.c b/src/plugins/fts/fts-api.c
index 5a5b2a919e84d3cf1367a515bb3751b05dd98bbf..4f8a1c125d90ff01d12bf485fdf018e7ddf9dad2 100644 (file)
--- a/src/plugins/fts/fts-api.c
+++ b/src/plugins/fts/fts-api.c
@@ -425,7 +425,7 @@ bool fts_index_get_header(struct mailbox *box, struct fts_index_header *hdr_r)
                i_zero(hdr_r);
                ret = FALSE;
        } else {
-               memcpy(hdr_r, data, data_size);
+               memcpy(hdr_r, data, sizeof(*hdr_r));
                ret = TRUE;
        }
        mail_index_view_close(&view);