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 --- security/selinux/include/ima.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 security/selinux/include/ima.h (limited to 'security/selinux/include/ima.h') diff --git a/security/selinux/include/ima.h b/security/selinux/include/ima.h new file mode 100644 index 000000000..d7d18f030 --- /dev/null +++ b/security/selinux/include/ima.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2021 Microsoft Corporation + * + * Author: Lakshmi Ramasubramanian (nramas@linux.microsoft.com) + * + * Measure critical data structures maintained by SELinux + * using IMA subsystem. + */ + +#ifndef _SELINUX_IMA_H_ +#define _SELINUX_IMA_H_ + +#include "security.h" + +#ifdef CONFIG_IMA +void __init selinux_ima_config_len_init(void); +extern void selinux_ima_measure_state(void); +extern void selinux_ima_measure_state_locked(void); +#else +static inline void selinux_ima_config_len_init(void) +{ +} +static inline void selinux_ima_measure_state(void) +{ +} +static inline void selinux_ima_measure_state_locked(void) +{ +} +#endif + +#endif /* _SELINUX_IMA_H_ */ -- cgit v1.3.1