security_capget(9)

👑 security_capget(9) — capability set peek-a-boo

okay so bestie, welcome to section 9 of the Kernel API Manual ✨ this is one of those LSM (Linux Security Module) hook pages, and tbh it's a short one — a little snack, not a whole meal. Let's get into it 💅

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🌸 NAME 🌸

security_capget — literally just: get the capability sets for a process 🫶

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✨ SYNOPSIS ✨

int security_capget (const struct task_struct *target , kernel_cap_t *effective ,
                     kernel_cap_t *inheritable , kernel_cap_t *permitted );

that's the whole vibe, no cap 💖

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🎀 ARGUMENTS 🎀

• target — the target process 👀 like, the one whose caps you're snooping on
• effective — the effective capability set 🦋
• inheritable — the inheritable capability set 🌸
• permitted — the permitted capability set ⭐

three sets, three out-pointers, one hook. we love a tidy signature 💜

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🌈 DESCRIPTION 🌈

so the hook is: get the effective, inheritable, and permitted capability sets for the target process. that's the main character job 🎀

and here's the extra little plot twist — the hook may also perform permission checking to determine if the current process is actually allowed to see the capability sets of the target process. so yeah, it's not just handing out info to anyone who asks; the check is very much allowed to happen. iykyk 🔥

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💀 RETURN 💀

Returns 0 if the capability sets were successfully obtained. slay, that's the success case ⭐

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🧚 SEE ALSO 🧚

okay bestie, buckle up — this is the part where the page lists every single friend in the group chat 😭 the kernel file ./security/security.c and then, like, an absolutely iconic amount of hooks. no skips, no cuts, here's the whole squad fr fr 👑

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_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_alloc(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)

💖 quick reminder bestie: security_capset(9) is right there in the list and yes it's the opposite-direction twin — this page is capget, that one is capset. don't mix them up, ok? 🙈

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and that's the whole page!! short, sweet, capability-flavored 🍓

sign-off time: this little icon comes from the source file ./security and it's dated October 2026 — so yeah, future-dated, main character energy fr fr 👑💅 go get those capability sets, bestie 💖