security_inode_alloc(9)

💅 security_inode_alloc(9) — like, the inode LSM blob allocator, bestie

okay so real talk, this one's straight out of the Kernel API Manual (section 9, the kernel developer pages, iykyk) and it's honestly not that deep — but it is load-bearing for security modules, so let's give it the respect it deserves. 🫶

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✨ NAME ✨

security_inode_alloc — allocate an inode LSM blob 💖

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🎀 SYNOPSIS 🎀

int security_inode_alloc (struct inode *inode , gfp_t gfp );

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🌸 ARGUMENTS 🌸

• inode — the inode. the actual inode, the one and only. main character of this function call fr fr 👑
• gfp — allocation flags. the gfp flags, standard kernel allocation-flavoured stuff ✨

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🦋 DESCRIPTION 🦋

so basically: this allocates a security structure and attaches it to inode->i_security. that's the whole vibe. 🎀

and here's the detail you cannot skip, bestie: the i_security field is initialized to NULL when the inode structure is allocated. so like, before this runs, it's empty. NULL. nothing. no thoughts, head empty, NULL. 💀

lowkey important: it's inode->i_security that gets the security structure glued onto it — not some other field, not a copy, the actual field. do not get cute with it.

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⭐ RETURN ⭐

returns 0 if the operation was successful. that's it. that's the return value. zero. slay. ✨

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💜 SEE ALSO 💜

okay so grab a snack and a drink because this list is long — like, unreasonably long — but we are not skipping a single one of these, that would be so disrespectful. buckle up bestie 🍓

kernel file ./security/security.c, plus:

lsm_file_alloc(9), lsm_backing_file_alloc(9), lsm_blob_alloc(9), lsm_cred_alloc(9), lsm_inode_alloc(9), lsm_task_alloc(9), lsm_ipc_alloc(9), lsm_key_alloc(9), lsm_msg_msg_alloc(9), lsm_bdev_alloc(9), lsm_bpf_map_alloc(9), lsm_bpf_prog_alloc(9), lsm_bpf_token_alloc(9), lsm_superblock_alloc(9), lsm_fill_user_ctx(9), security_binder_set_context_mgr(9), security_binder_transaction(9), security_binder_transfer_binder(9), security_binder_transfer_file(9), security_ptrace_access_check(9), security_ptrace_traceme(9), security_capget(9), security_capset(9), security_capable(9), security_quotactl(9), security_quota_on(9), security_syslog(9), security_settime64(9), security_vm_enough_memory_mm(9), security_bprm_creds_for_exec(9), security_bprm_creds_from_file(9), security_bprm_check(9), security_bprm_committing_creds(9), security_bprm_committed_creds(9), security_fs_context_submount(9), security_fs_context_dup(9), security_fs_context_parse_param(9), security_sb_alloc(9), security_sb_delete(9), security_sb_free(9), security_free_mnt_opts(9), security_sb_eat_lsm_opts(9), security_sb_mnt_opts_compat(9), security_sb_remount(9), security_sb_kern_mount(9), security_sb_show_options(9), security_sb_statfs(9), security_sb_mount(9), security_sb_umount(9), security_sb_pivotroot(9), security_sb_set_mnt_opts(9), security_sb_clone_mnt_opts(9), security_move_mount(9), security_path_notify(9), security_inode_free(9), security_dentry_init_security(9), security_dentry_create_files_as(9), security_inode_init_security(9), security_inode_init_security_anon(9), security_path_mknod(9), security_path_post_mknod(9), security_path_mkdir(9), security_path_rmdir(9), security_path_unlink(9), security_path_symlink(9), security_path_link(9), security_path_rename(9), security_path_truncate(9), security_path_chmod(9), security_path_chown(9), security_path_chroot(9), security_inode_create(9), security_inode_post_create_tmpfile(9), security_inode_link(9), security_inode_unlink(9), security_inode_symlink(9), security_inode_mkdir(9), security_inode_rmdir(9), security_inode_mknod(9), security_inode_rename(9), security_inode_readlink(9), security_inode_follow_link(9), security_inode_permission(9), security_inode_setattr(9), security_inode_post_setattr(9), security_inode_getattr(9), security_inode_setxattr(9), security_inode_set_acl(9), security_inode_post_set_acl(9), security_inode_get_acl(9), security_inode_remove_acl(9), security_inode_post_remove_acl(9), security_inode_post_setxattr(9), security_inode_getxattr(9), security_inode_listxattr(9), security_inode_removexattr(9), security_inode_post_removexattr(9), security_inode_file_setattr(9), security_inode_file_getattr(9), security_inode_need_killpriv(9), security_inode_killpriv(9), security_inode_getsecurity(9), security_inode_setsecurity(9), security_inode_listsecurity(9), security_inode_getlsmprop(9), security_inode_copy_up(9), security_inode_copy_up_xattr(9), security_inode_setintegrity(9), security_kernfs_init_security(9), security_file_permission(9), security_file_alloc(9), security_file_release(9), security_file_free(9), security_backing_file_alloc(9), security_backing_file_free(9), security_file_ioctl(9), security_file_ioctl_compat(9), security_mmap_file(9), security_mmap_backing_file(9), security_mmap_addr(9), security_file_mprotect(9), security_file_lock(9), security_file_fcntl(9), security_file_set_fowner(9), security_file_send_sigiotask(9), security_file_receive(9), security_file_open(9), security_file_post_open(9), security_file_truncate(9), security_task_alloc(9), security_task_free(9), security_cred_alloc_blank(9), security_cred_free(9), security_prepare_creds(9), security_transfer_creds(9), security_cred_getsecid(9), security_cred_getlsmprop(9), security_kernel_act_as(9), security_kernel_create_files_as(9), security_kernel_module_request(9), security_kernel_read_file(9), security_kernel_post_read_file(9), security_kernel_load_data(9), security_kernel_post_load_data(9), security_task_fix_setuid(9), security_task_fix_setgid(9), security_task_fix_setgroups(9), security_task_setpgid(9), security_task_getpgid(9), security_task_getsid(9), security_current_getlsmprop_subj(9), security_task_getlsmprop_obj(9), security_task_setnice(9), security_task_setioprio(9), security_task_getioprio(9), security_task_prlimit(9), security_task_setrlimit(9), security_task_setscheduler(9), security_task_getscheduler(9), security_task_movememory(9), security_task_kill(9), security_task_prctl(9), security_task_to_inode(9), security_create_user_ns(9), security_ipc_permission(9), security_ipc_getlsmprop(9), security_msg_msg_alloc(9), security_msg_msg_free(9), security_msg_queue_alloc(9), security_msg_queue_free(9), security_msg_queue_associate(9), security_msg_queue_msgctl(9), security_msg_queue_msgsnd(9), security_msg_queue_msgrcv(9), security_shm_alloc(9), security_shm_free(9), security_shm_associate(9), security_shm_shmctl(9), security_shm_shmat(9), security_sem_alloc(9), security_sem_free(9), security_sem_associate(9), security_sem_semctl(9), security_sem_semop(9), security_d_instantiate(9), security_getselfattr(9), security_setselfattr(9), security_getprocattr(9), security_setprocattr(9), security_ismaclabel(9), security_secid_to_secctx(9), security_lsmprop_to_secctx(9), security_secctx_to_secid(9), security_release_secctx(9), security_inode_invalidate_secctx(9), security_inode_notifysecctx(9), security_inode_setsecctx(9), security_inode_getsecctx(9), security_post_notification(9), security_watch_key(9), security_netlink_send(9), security_unix_stream_connect(9), security_unix_may_send(9), security_socket_create(9), security_socket_post_create(9), security_socket_socketpair(9), security_socket_bind(9), security_socket_connect(9), security_socket_listen(9), security_socket_accept(9), security_socket_sendmsg(9), security_socket_recvmsg(9), security_socket_getsockname(9), security_socket_getpeername(9), security_socket_getsockopt(9), security_socket_setsockopt(9), security_socket_shutdown(9), security_sock_rcv_skb(9), security_socket_getpeersec_stream(9), security_socket_getpeersec_dgram(9), lsm_sock_alloc(9), security_sk_alloc(9), security_sk_free(9), security_sk_clone(9), security_sk_classify_flow(9), security_req_classify_flow(9), security_sock_graft(9), security_inet_conn_request(9), security_inet_csk_clone(9), security_inet_conn_established(9), security_secmark_relabel_packet(9), security_secmark_refcount_inc(9), security_secmark_refcount_dec(9), security_tun_dev_alloc_security(9), security_tun_dev_free_security(9), security_tun_dev_create(9), security_tun_dev_attach_queue(9), security_tun_dev_attach(9), security_tun_dev_open(9), security_sctp_assoc_request(9), security_sctp_bind_connect(9), security_sctp_sk_clone(9), security_sctp_assoc_established(9), security_mptcp_add_subflow(9), security_unix_find(9), security_ib_pkey_access(9), security_ib_endport_manage_subnet(9), security_ib_alloc_security(9), security_ib_free_security(9), security_xfrm_policy_alloc(9), security_xfrm_policy_clone(9), security_xfrm_policy_free(9), security_xfrm_policy_delete(9), security_xfrm_state_alloc(9), security_xfrm_state_alloc_acquire(9), security_xfrm_state_delete(9), security_xfrm_state_free(9), security_xfrm_policy_lookup(9), security_xfrm_state_pol_flow_match(9), security_xfrm_decode_session(9), security_key_alloc(9), security_key_free(9), security_key_permission(9), security_key_getsecurity(9), security_key_post_create_or_update(9), security_audit_rule_init(9), security_audit_rule_known(9), security_audit_rule_free(9), security_audit_rule_match(9), security_bpf(9), security_bpf_map(9), security_bpf_prog(9), security_bpf_map_create(9), security_bpf_prog_load(9), security_bpf_token_create(9), security_bpf_token_cmd(9), security_bpf_token_capable(9), security_bpf_map_free(9), security_bpf_prog_free(9), security_bpf_token_free(9), security_locked_down(9), security_bdev_alloc(9), security_bdev_free(9), security_bdev_setintegrity(9), security_perf_event_open(9), security_perf_event_alloc(9), security_perf_event_free(9), security_perf_event_read(9), security_perf_event_write(9), security_uring_override_creds(9), security_uring_sqpoll(9), security_uring_cmd(9), security_uring_allowed(9), security_initramfs_populated(9)

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and that's the whole page bestie, we ate and left no crumbs 💅✨

cute little sign-off: this one lives under ./security, dated October 2026. go forth and allocate responsibly 🧚💜