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 --- net/ceph/auth_none.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 net/ceph/auth_none.h (limited to 'net/ceph/auth_none.h') diff --git a/net/ceph/auth_none.h b/net/ceph/auth_none.h new file mode 100644 index 000000000..bb121539e --- /dev/null +++ b/net/ceph/auth_none.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _FS_CEPH_AUTH_NONE_H +#define _FS_CEPH_AUTH_NONE_H + +#include +#include + +/* + * null security mode. + * + * we use a single static authorizer that simply encodes our entity name + * and global id. + */ + +struct ceph_none_authorizer { + struct ceph_authorizer base; + char buf[128]; + int buf_len; +}; + +struct ceph_auth_none_info { + bool starting; +}; + +int ceph_auth_none_init(struct ceph_auth_client *ac); + +#endif -- cgit v1.3.1