task_active_pid_ns identifier - Linux source code next-20260811

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linux

Versions

FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

include/linux/pid_namespace.h, line 136 (as a prototype)

Defined in 1 files as a function:

kernel/pid.c, line 575 (as a function)

Referenced in 40 files:

Smatch caller information:

kernel/exit.c find_child_reaper() -> task_active_pid_ns()

Type	Parameter	Key	Value
PARAM_VALUE	0	tsk	4096-ptr_max
PARAM_VALUE	0	tsk->flags	0,4-u32max
CAPPED_DATA	0	tsk->cgroups	1
CAPPED_DATA	0	tsk->sched_class	1
DATA_SOURCE	0	tsk	$0
RX_PATH
TASK_NOT_RUNNING
USER_DATA	0	tsk->dl.pi_se->runtime	1-17592186044415[c]
USER_DATA	0	tsk->exit_code	0,256-65280[c]
USER_DATA	0	tsk->signal->group_exit_code	0,256-65280[c]
LOCK2		global &tasklist_lock
LOCK2		irq
HALF_LOCKED2		global &system_transition_mutex

kernel/fork.c copy_process() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING

kernel/fork.c ptrace_event_pid() -> task_active_pid_ns()

Type	Parameter	Key	Value
UNITS	0	tsk	unit_byte
LOCK2		rcu_read

fs/gfs2/glock.c gfs2_glockfd_next_task() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
LOCK2		&seq->lock
TYPE_LOCK		(struct seq_file)->lock

fs/pidfs.c pid_in_current_pidns() -> task_active_pid_ns()

Type	Parameter	Key	Value

fs/pidfs.c pidfd_ioctl() -> task_active_pid_ns()

Type	Parameter	Key	Value
PARAM_VALUE	0	tsk	4096-ptr_max
DATA_SOURCE	0	tsk	r get_pid_task
LOCK2		&_T->lock->alloc_lock
LOCK2		rcu_read
LOCK2	0	&tsk->signal->exec_update_lock
TYPE_LOCK		(struct signal_struct)->exec_update_lock

drivers/android/binder.c binder_thread_read() -> task_active_pid_ns()

Type	Parameter	Key	Value
TASK_NOT_RUNNING

ipc/util.c sysvipc_proc_open() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING

kernel/audit.c audit_netlink_ok() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
LOCK2		global &audit_cmd_mutex.lock
HALF_LOCKED2		&dev->ethtool->rss_lock
HALF_LOCKED2		global &hwsim_phys_lock
HALF_LOCKED2		global &rtnl_mutex
HALF_LOCKED2		global &rx_queue_mutex
HALF_LOCKED2		rcu_read

drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_smi_events.c kfd_smi_task_to_pid() -> task_active_pid_ns()

Type	Parameter	Key	Value
PARAM_VALUE	0	tsk	1-u64max
DATA_SOURCE	0	tsk	$0
STR_LEN	0	tsk	(-1),6,10,15,21,25,32,35
STR_LEN	0	tsk	(-1),6,10,15,21,25,32,35
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&mm->mmap_lock
HALF_LOCKED2		&prange->migrate_mutex
HALF_LOCKED2		&svms->lock

drivers/connector/cn_proc.c task_is_in_init_pid_ns() -> task_active_pid_ns()

Type	Parameter	Key	Value
DATA_SOURCE	0	tsk	$0
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		global &audit_cmd_mutex.lock
HALF_LOCKED2		global &hwsim_phys_lock
HALF_LOCKED2		global &rtnl_mutex
HALF_LOCKED2		global &rx_queue_mutex
HALF_LOCKED2		rcu_read

fs/coda/psdev.c coda_psdev_open() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING

fs/proc/root.c proc_init_fs_context() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&fc->uapi_mutex

fs/proc/root.c proc_parse_pidns_param() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&fc->uapi_mutex

kernel/nsproxy.c validate_nsset() -> task_active_pid_ns()

Type	Parameter	Key	Value
PARAM_VALUE	0	tsk	4096-ptr_max
DATA_SOURCE	0	tsk	r pid_task
LOCK2		rcu_read

kernel/pid_namespace.c copy_pid_ns() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&tsk->signal->exec_update_lock

kernel/pid_namespace.c pid_mfd_noexec_dointvec_minmax() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&pool->lock

kernel/pid_namespace.c pid_ns_ctl_handler() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&pool->lock

kernel/pid_namespace.c pidns_get() -> task_active_pid_ns()

Type	Parameter	Key	Value
DATA_SOURCE	0	tsk	$0
RX_PATH
TASK_NOT_RUNNING
LOCK2		rcu_read
HALF_LOCKED2	0	&tsk->signal->exec_update_lock

kernel/pid_namespace.c pidns_get_parent() -> task_active_pid_ns()

Type	Parameter	Key	Value
HALF_LOCKED2		global &rtnl_mutex

kernel/pid_namespace.c pidns_install() -> task_active_pid_ns()

Type	Parameter	Key	Value

kernel/taskstats.c add_del_listener() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&dev->lock
HALF_LOCKED2		&devlink->lock
HALF_LOCKED2		&net->xfrm.xfrm_cfg_mutex
HALF_LOCKED2		global &audit_cmd_mutex.lock
HALF_LOCKED2		global &cb_lock
HALF_LOCKED2		global &crypto_cfg_mutex
HALF_LOCKED2		global &dpll_lock
HALF_LOCKED2		global &hwsim_phys_lock
HALF_LOCKED2		global &net_dm_mutex
HALF_LOCKED2		global &rtnl_mutex
HALF_LOCKED2		global &rx_queue_mutex
HALF_LOCKED2		rcu_read

kernel/taskstats.c fill_stats_for_pid() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&dev->lock
HALF_LOCKED2		&devlink->lock
HALF_LOCKED2		&net->xfrm.xfrm_cfg_mutex
HALF_LOCKED2		global &audit_cmd_mutex.lock
HALF_LOCKED2		global &cb_lock
HALF_LOCKED2		global &crypto_cfg_mutex
HALF_LOCKED2		global &dpll_lock
HALF_LOCKED2		global &hwsim_phys_lock
HALF_LOCKED2		global &net_dm_mutex
HALF_LOCKED2		global &rtnl_mutex
HALF_LOCKED2		global &rx_queue_mutex
HALF_LOCKED2		rcu_read

kernel/reboot.c __do_sys_reboot() -> task_active_pid_ns()

Type	Parameter	Key	Value

kernel/reboot.c __do_sys_reboot() -> task_active_pid_ns()

Type	Parameter	Key	Value

kernel/pid.c __task_pid_nr_ns() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
LOCK2		rcu_read
HALF_LOCKED2		&cgrp->pidlist_mutex
HALF_LOCKED2		&ctx->uring_lock
HALF_LOCKED2		&info->lock
HALF_LOCKED2		&m->lock
HALF_LOCKED2		&of->mutex
HALF_LOCKED2		&p->mutex
HALF_LOCKED2		&s->lock
HALF_LOCKED2		&seq->lock
HALF_LOCKED2		&task->futex.exit_mutex
HALF_LOCKED2		&task->sighand->siglock
HALF_LOCKED2		&uhid->devlock
HALF_LOCKED2		global &css_set_lock
HALF_LOCKED2		global &rdtgroup_mutex
HALF_LOCKED2		global &tasklist_lock
HALF_LOCKED2		global &tomoyo_ss
HALF_LOCKED2		irq

kernel/pid.c find_task_by_vpid() -> task_active_pid_ns()

Type	Parameter	Key	Value
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
LOCK2		rcu_read
HALF_LOCKED2		&head->io_sem
HALF_LOCKED2		&of->mutex
HALF_LOCKED2		global &cgroup_mutex
HALF_LOCKED2		global &rdtgroup_mutex
HALF_LOCKED2		global &tasklist_lock
HALF_LOCKED2		global &tomoyo_ss
HALF_LOCKED2		irq

kernel/pid.c find_vpid() -> task_active_pid_ns()

Type	Parameter	Key	Value
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&real_tty->ctrl.lock
HALF_LOCKED2		&ub->mutex
HALF_LOCKED2		&vk->ctx_lock
HALF_LOCKED2		global &tasklist_lock
HALF_LOCKED2		irq
HALF_LOCKED2		rcu_read

kernel/pid.c pid_table_root_lookup() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
LOCK2		global &sysctl_lock

kernel/pid.c pid_vnr() -> task_active_pid_ns()

Type	Parameter	Key	Value
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&dev->filelist_mutex
HALF_LOCKED2		&f_owner->lock
HALF_LOCKED2		&info->lock
HALF_LOCKED2		&kvm->lock
HALF_LOCKED2		&m->lock
HALF_LOCKED2		&msq->q_perm.lock
HALF_LOCKED2		&priv->client_name_lock
HALF_LOCKED2		&real_tty->ctrl.lock
HALF_LOCKED2		&seq->lock
HALF_LOCKED2		&shp->shm_perm.lock
HALF_LOCKED2		&sk->sk_peer_lock
HALF_LOCKED2		_T->lock
HALF_LOCKED2		global &audit_cmd_mutex.lock
HALF_LOCKED2		irq
HALF_LOCKED2		rcu_read
HALF_LOCKED2		sma

kernel/pid.c set_is_seen() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
LOCK2		global &sysctl_lock

net/core/netdev-genl.c netdev_nl_napi_fill_one() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&dev->lock

net/core/scm.c scm_check_creds() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&vq->mutex

kernel/nscommon.c may_see_all_namespaces() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		rcu_read

kernel/cgroup/cgroup-v1.c cgroup_pidlist_find() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
LOCK2		&cgrp->pidlist_mutex
LOCK2		&of->mutex
LOCK2		&s->lock
TYPE_LOCK		(struct cgroup)->pidlist_mutex
TYPE_LOCK		(struct kernfs_open_file)->mutex
TYPE_LOCK		(struct seq_file)->lock

kernel/cgroup/cgroup-v1.c cgroup_pidlist_find_create() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
LOCK2		&cgrp->pidlist_mutex
LOCK2		&of->mutex
LOCK2		&s->lock
TYPE_LOCK		(struct cgroup)->pidlist_mutex
TYPE_LOCK		(struct kernfs_open_file)->mutex
TYPE_LOCK		(struct seq_file)->lock

fs/nsfs.c is_current_namespace() -> task_active_pid_ns()

Type	Parameter	Key	Value
LOCK2		rcu_read

fs/nsfs.c is_current_namespace() -> task_active_pid_ns()

Type	Parameter	Key	Value
LOCK2		rcu_read

fs/nsfs.c nsfs_fh_to_dentry() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING

fs/nsfs.c nsfs_fh_to_dentry() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING

kernel/acct.c __do_sys_acct() -> task_active_pid_ns()

Type	Parameter	Key	Value
CAPABLE	0	20
LOCK2		rcu_read

kernel/acct.c __do_sys_acct() -> task_active_pid_ns()

Type	Parameter	Key	Value
CAPABLE	0	20
LOCK2		rcu_read

kernel/acct.c acct_on() -> task_active_pid_ns()

Type	Parameter	Key	Value
CAPABLE	0	20
LOCK2		global &acct_on_mutex

kernel/acct.c acct_process() -> task_active_pid_ns()

Type	Parameter	Key	Value
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		global &system_transition_mutex

drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_chardev.c criu_process_info() -> task_active_pid_ns()

Type	Parameter	Key	Value
PARAM_VALUE	0	tsk	4096-ptr_max
CAPPED_DATA	0	tsk	1
LOCK2		&p->mutex
TYPE_LOCK		(struct kfd_process)->mutex

fs/coda/inode.c coda_get_tree() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&fc->uapi_mutex

fs/locks.c posix_lock_to_flock() -> task_active_pid_ns()

Type	Parameter	Key	Value

kernel/signal.c __send_signal_locked() -> task_active_pid_ns()

Type	Parameter	Key	Value
PARAM_VALUE	0	tsk	4096-ptr_max
BUF_SIZE	0	tsk	(-1)-s32max
BUF_SIZE	0	tsk	(-1)-s32max
BUF_SIZE	0	tsk->group_leader	(-1)-s32max
BUF_SIZE	0	tsk->mempolicy	(-1)-s32max
DATA_SOURCE	0	tsk	$2
BIT_INFO	0	tsk->flags	0x0,0xffdfffff
NOSPEC	0	tsk->thread.fsbase
NOSPEC	0	tsk->thread.gsbase
RX_PATH
TASK_NOT_RUNNING
USER_DATA	0	tsk->exit_signal	1-64[c]
USER_DATA	0	tsk->group_leader->thread.fsbase	0-s32max[c]
USER_DATA	0	tsk->group_leader->thread.gsbase	0-s32max[c]
USER_DATA	0	tsk->parent->exit_code	0,256-65280[c]
USER_DATA	0	tsk->ptrace	65537,65545-33619953[c]
USER_DATA	0	tsk->real_parent->exit_code	0,256-65280[c]
USER_DATA	0	tsk->thread.fsbase	0-s32max[c]
USER_DATA	0	tsk->thread.gsbase	0-s32max[c]
NO_OVERFLOW_SIMPLE	0	tsk->dl.pi_se->dl_runtime
NO_OVERFLOW_SIMPLE	0	tsk->nsproxy->pid_ns_for_children->pid_cachep->object_size
UNITS	0	tsk	unit_byte
HALF_LOCKED2		&_T->lock->alloc_lock
HALF_LOCKED2		&cw->mutex
HALF_LOCKED2		&sighand->siglock
HALF_LOCKED2		&tsk->sighand->siglock
HALF_LOCKED2		&tty->legacy_mutex
HALF_LOCKED2		_T->lock
HALF_LOCKED2		flags
HALF_LOCKED2		global &tasklist_lock
HALF_LOCKED2		irq
HALF_LOCKED2	0	&tsk->alloc_lock
HALF_LOCKED2	0	&tsk->sighand->siglock

kernel/signal.c access_pidfd_pidns() -> task_active_pid_ns()

Type	Parameter	Key	Value

kernel/signal.c do_notify_parent() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
UNITS	0	tsk	unit_byte
LOCK2		global &tasklist_lock
LOCK2		irq
LOCK2		rcu_read

kernel/signal.c do_notify_parent_cldstop() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
UNITS	0	tsk	unit_byte
LOCK2		global &tasklist_lock
LOCK2		rcu_read
HALF_LOCKED2		&sighand->siglock

kernel/signal.c send_signal_locked() -> task_active_pid_ns()

Type	Parameter	Key	Value
PARAM_VALUE	0	tsk	4096-ptr_max
CAPPED_DATA	0	tsk	1
DATA_SOURCE	0	tsk	$2
NOSPEC	0	tsk->thread.fsbase
NOSPEC	0	tsk->thread.gsbase
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
USER_DATA	0	tsk->exit_signal	1-64[c]
USER_DATA	0	tsk->group_leader->thread.fsbase	0-u32max
USER_DATA	0	tsk->group_leader->thread.gsbase	0-u32max
USER_DATA	0	tsk->parent->exit_code	0,256-65280[c]
USER_DATA	0	tsk->real_parent->exit_code	0,256-65280[c]
USER_DATA	0	tsk->thread.fsbase	0-u32max
USER_DATA	0	tsk->thread.gsbase	0-u32max
HALF_LOCKED2		&fown->lock
HALF_LOCKED2		&info->lock
HALF_LOCKED2		flags
HALF_LOCKED2		global &oom_lock
HALF_LOCKED2		global &tasklist_lock
HALF_LOCKED2		rcu_read

kernel/signal.c send_signal_locked() -> task_active_pid_ns()

Type	Parameter	Key	Value
PARAM_VALUE	0	tsk	4096-ptr_max
DATA_SOURCE	0	tsk	$2
NOSPEC	0	tsk->thread.fsbase
NOSPEC	0	tsk->thread.gsbase
RX_PATH
TASK_NOT_RUNNING
USER_DATA	0	tsk->exit_signal	1-64[c]
USER_DATA	0	tsk->group_leader->thread.fsbase	0-u32max
USER_DATA	0	tsk->group_leader->thread.gsbase	0-u32max
USER_DATA	0	tsk->parent->exit_code	0,256-65280[c]
USER_DATA	0	tsk->real_parent->exit_code	0,256-65280[c]
USER_DATA	0	tsk->thread.fsbase	0-u32max
USER_DATA	0	tsk->thread.gsbase	0-u32max
UNITS	0	tsk	unit_byte
HALF_LOCKED2		&sighand->siglock
HALF_LOCKED2		flags
HALF_LOCKED2		global &tasklist_lock
HALF_LOCKED2		irq
HALF_LOCKED2	0	&tsk->sighand->siglock

fs/proc/loadavg.c loadavg_proc_show() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
LOCK2		&m->lock
TYPE_LOCK		(struct seq_file)->lock

kernel/bpf/task_iter.c bpf_iter_attach_task() -> task_active_pid_ns()

Type	Parameter	Key	Value

kernel/bpf/task_iter.c init_seq_pidns() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING

kernel/trace/bpf_trace.c bpf_uprobe_multi_link_fill_link_info() -> task_active_pid_ns()

Type	Parameter	Key	Value

kernel/trace/bpf_trace.c bpf_uprobe_multi_show_fdinfo() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
LOCK2		&seq->lock
TYPE_LOCK		(struct seq_file)->lock

fs/fuse/inode.c fuse_conn_init() -> task_active_pid_ns()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING

mm/memfd.c check_sysctl_memfd_noexec() -> task_active_pid_ns()

Type	Parameter	Key	Value

fs/exec.c exec_binprm() -> task_active_pid_ns()

Type	Parameter	Key	Value
UNITS	0	tsk	unit_byte
LOCK2		rcu_read

kernel/bpf/helpers.c ____bpf_get_ns_current_pid_tgid() -> task_active_pid_ns()

Type	Parameter	Key	Value
PARAM_VALUE	0	tsk	1-u64max
DATA_SOURCE	0	tsk	r get_current

kernel/bpf/helpers.c bpf_task_from_vpid() -> task_active_pid_ns()

Type	Parameter	Key	Value
LOCK2		rcu_read