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/netnode.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 security/selinux/include/netnode.h (limited to 'security/selinux/include/netnode.h') diff --git a/security/selinux/include/netnode.h b/security/selinux/include/netnode.h new file mode 100644 index 000000000..e4dc904c3 --- /dev/null +++ b/security/selinux/include/netnode.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Network node table + * + * SELinux must keep a mapping of network nodes to labels/SIDs. This + * mapping is maintained as part of the normal policy but a fast cache is + * needed to reduce the lookup overhead since most of these queries happen on + * a per-packet basis. + * + * Author: Paul Moore + */ + +/* + * (c) Copyright Hewlett-Packard Development Company, L.P., 2007 + */ + +#ifndef _SELINUX_NETNODE_H +#define _SELINUX_NETNODE_H + +#include + +void sel_netnode_flush(void); + +int sel_netnode_sid(const void *addr, u16 family, u32 *sid); + +#endif -- cgit v1.3.1