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 --- fs/dlm/user.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 fs/dlm/user.h (limited to 'fs/dlm/user.h') diff --git a/fs/dlm/user.h b/fs/dlm/user.h new file mode 100644 index 000000000..2caf8e6e2 --- /dev/null +++ b/fs/dlm/user.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2006-2010 Red Hat, Inc. All rights reserved. + */ + +#ifndef __USER_DOT_H__ +#define __USER_DOT_H__ + +void dlm_purge_lkb_callbacks(struct dlm_lkb *lkb); +void dlm_user_add_ast(struct dlm_lkb *lkb, uint32_t flags, int mode, + int status, uint32_t sbflags); +int dlm_user_init(void); +void dlm_user_exit(void); +int dlm_device_deregister(struct dlm_ls *ls); +int dlm_user_daemon_available(void); + +#endif -- cgit v1.3.1