diff options
Diffstat (limited to 'py/objstr.c')
| -rw-r--r-- | py/objstr.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/py/objstr.c b/py/objstr.c index ed9ab4e45..13d957105 100644 --- a/py/objstr.c +++ b/py/objstr.c @@ -223,7 +223,10 @@ STATIC mp_obj_t bytes_make_new(const mp_obj_type_t *type_in, size_t n_args, size } if (MP_OBJ_IS_SMALL_INT(args[0])) { - uint len = MP_OBJ_SMALL_INT_VALUE(args[0]); + mp_int_t len = MP_OBJ_SMALL_INT_VALUE(args[0]); + if (len < 0) { + mp_raise_ValueError(NULL); + } vstr_t vstr; vstr_init_len(&vstr, len); memset(vstr.buf, 0, len); |