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/gpio/gpiolib-cdev.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 drivers/gpio/gpiolib-cdev.h (limited to 'drivers/gpio/gpiolib-cdev.h') diff --git a/drivers/gpio/gpiolib-cdev.h b/drivers/gpio/gpiolib-cdev.h new file mode 100644 index 000000000..4a9cb3335 --- /dev/null +++ b/drivers/gpio/gpiolib-cdev.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef GPIOLIB_CDEV_H +#define GPIOLIB_CDEV_H + +#include + +struct gpio_device; + +int gpiolib_cdev_register(struct gpio_chip *gc, dev_t devt); +void gpiolib_cdev_unregister(struct gpio_device *gdev); + +#endif /* GPIOLIB_CDEV_H */ -- cgit v1.3.1