1 files changed, 3 insertions, 0 deletions

diff --git a/regress/cred.c b/regress/cred.c
index 4998649..f8c08a4 100644
--- a/regress/cred.c
+++ b/regress/cred.c
@@ -333,10 +333,13 @@ empty_cred(void)
         assert(fido_cred_x5c_ptr(c) == NULL);
         assert(fido_cred_verify(c) == FIDO_ERR_INVALID_ARGUMENT);
 
+        memset(&io_f, 0, sizeof(io_f));
+
         io_f.open = dummy_open;
         io_f.close = dummy_close;
         io_f.read = dummy_read;
         io_f.write = dummy_write;
+
         d = alloc_dev();
 
         fido_dev_force_u2f(d);