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_x.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 net/ceph/auth_x.h (limited to 'net/ceph/auth_x.h') diff --git a/net/ceph/auth_x.h b/net/ceph/auth_x.h new file mode 100644 index 000000000..c03735f96 --- /dev/null +++ b/net/ceph/auth_x.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _FS_CEPH_AUTH_X_H +#define _FS_CEPH_AUTH_X_H + +#include + +#include + +#include "crypto.h" +#include "auth_x_protocol.h" + +/* + * Handle ticket for a single service. + */ +struct ceph_x_ticket_handler { + struct rb_node node; + unsigned int service; + + struct ceph_crypto_key session_key; + bool have_key; + + u64 secret_id; + struct ceph_buffer *ticket_blob; + + time64_t renew_after, expires; +}; + +#define CEPHX_AU_ENC_BUF_LEN 128 /* big enough for encrypted blob */ + +struct ceph_x_authorizer { + struct ceph_authorizer base; + struct ceph_crypto_key session_key; + struct ceph_buffer *buf; + unsigned int service; + u64 nonce; + u64 secret_id; + char enc_buf[CEPHX_AU_ENC_BUF_LEN] __aligned(8); +}; + +struct ceph_x_info { + struct ceph_crypto_key secret; + + bool starting; + u64 server_challenge; + + unsigned int have_keys; + struct rb_root ticket_handlers; + + struct ceph_x_authorizer auth_authorizer; +}; + +int ceph_x_init(struct ceph_auth_client *ac); + +#endif -- cgit v1.3.1