From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- drivers/regulator/dummy.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 drivers/regulator/dummy.h (limited to 'drivers/regulator/dummy.h') diff --git a/drivers/regulator/dummy.h b/drivers/regulator/dummy.h new file mode 100644 index 000000000..c79e28209 --- /dev/null +++ b/drivers/regulator/dummy.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * dummy.h + * + * Copyright 2010 Wolfson Microelectronics PLC. + * + * Author: Mark Brown + * + * This is useful for systems with mixed controllable and + * non-controllable regulators, as well as for allowing testing on + * systems with no controllable regulators. + */ + +#ifndef _DUMMY_H +#define _DUMMY_H + +struct regulator_dev; + +extern struct regulator_dev *dummy_regulator_rdev; + +void __init regulator_dummy_init(void); + +#endif -- cgit v1.3.1