[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 39.285222] random: sshd: uninitialized urandom read (32 bytes read) [ 39.502098] kauditd_printk_skb: 9 callbacks suppressed [ 39.502107] audit: type=1400 audit(1570374804.083:35): avc: denied { map } for pid=6930 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 39.555934] random: sshd: uninitialized urandom read (32 bytes read) [ 40.078087] random: sshd: uninitialized urandom read (32 bytes read) [ 56.477147] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.15.207' (ECDSA) to the list of known hosts. [ 61.927671] random: sshd: uninitialized urandom read (32 bytes read) [ 62.039918] audit: type=1400 audit(1570374826.613:36): avc: denied { map } for pid=6942 comm="syz-executor166" path="/root/syz-executor166593405" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 62.280853] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.570075] [ 63.571739] ====================================================== [ 63.578038] WARNING: possible circular locking dependency detected [ 63.584344] 4.14.147 #0 Not tainted [ 63.587948] ------------------------------------------------------ [ 63.594299] syz-executor166/7192 is trying to acquire lock: [ 63.600037] (&qdisc_rx_lock){+.-.}, at: [] pie_timer+0x70/0x680 [ 63.607801] [ 63.607801] but task is already holding lock: [ 63.613759] (((&q->adapt_timer))){+.-.}, at: [] call_timer_fn+0xc8/0x670 [ 63.622248] [ 63.622248] which lock already depends on the new lock. [ 63.622248] [ 63.630603] [ 63.630603] the existing dependency chain (in reverse order) is: [ 63.638264] [ 63.638264] -> #1 (((&q->adapt_timer))){+.-.}: [ 63.644335] lock_acquire+0x16f/0x430 [ 63.648645] del_timer_sync+0xb4/0x250 [ 63.653039] pie_destroy+0x47/0x60 [ 63.657082] qdisc_destroy+0x157/0x320 [ 63.661471] sfb_change+0x28e/0xaa0 [ 63.665599] tc_modify_qdisc+0xc5a/0x1270 [ 63.670250] rtnetlink_rcv_msg+0x3eb/0xb70 [ 63.674992] netlink_rcv_skb+0x14f/0x3c0 [ 63.679549] rtnetlink_rcv+0x1d/0x30 [ 63.683765] netlink_unicast+0x45d/0x640 [ 63.688324] netlink_sendmsg+0x7c4/0xc60 [ 63.692888] sock_sendmsg+0xce/0x110 [ 63.697130] ___sys_sendmsg+0x70a/0x840 [ 63.701605] __sys_sendmsg+0xb9/0x140 [ 63.705913] SyS_sendmsg+0x2d/0x50 [ 63.709961] do_syscall_64+0x1e8/0x640 [ 63.714349] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 63.720038] [ 63.720038] -> #0 (&qdisc_rx_lock){+.-.}: [ 63.725664] __lock_acquire+0x2cb3/0x4620 [ 63.730361] lock_acquire+0x16f/0x430 [ 63.734662] _raw_spin_lock+0x2f/0x40 [ 63.739002] pie_timer+0x70/0x680 [ 63.742971] call_timer_fn+0x161/0x670 [ 63.747359] run_timer_softirq+0x5b4/0x1570 [ 63.752180] __do_softirq+0x244/0x9a0 [ 63.756482] irq_exit+0x160/0x1b0 [ 63.760454] smp_apic_timer_interrupt+0x146/0x5e0 [ 63.765815] apic_timer_interrupt+0x96/0xa0 [ 63.770636] memcmp+0x4c/0xc0 [ 63.774258] depot_save_stack+0x11c/0x410 [ 63.778906] save_stack+0xa9/0xd0 [ 63.782859] kasan_kmalloc+0xce/0xf0 [ 63.787071] kasan_slab_alloc+0xf/0x20 [ 63.791457] kmem_cache_alloc+0x12e/0x780 [ 63.796365] ebitmap_cpy+0xcd/0x270 [ 63.800508] mls_compute_sid+0x22f/0xd60 [ 63.805071] security_compute_sid.part.0+0xa8f/0x10f0 [ 63.810782] security_transition_sid+0xd6/0x130 [ 63.815950] selinux_socket_create+0x36d/0x4d0 [ 63.821048] security_socket_create+0x83/0xc0 [ 63.826041] __sock_create+0x67/0x620 [ 63.830340] SyS_socket+0xd3/0x170 [ 63.834384] do_syscall_64+0x1e8/0x640 [ 63.838771] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 63.844457] [ 63.844457] other info that might help us debug this: [ 63.844457] [ 63.852578] Possible unsafe locking scenario: [ 63.852578] [ 63.858614] CPU0 CPU1 [ 63.863259] ---- ---- [ 63.867900] lock(((&q->adapt_timer))); [ 63.871940] lock(&qdisc_rx_lock); [ 63.878063] lock(((&q->adapt_timer))); [ 63.884617] lock(&qdisc_rx_lock); [ 63.888221] [ 63.888221] *** DEADLOCK *** [ 63.888221] [ 63.894258] 2 locks held by syz-executor166/7192: [ 63.899077] #0: (policy_rwlock){.+.?}, at: [] security_compute_sid.part.0+0xe0/0x10f0 [ 63.908790] #1: (((&q->adapt_timer))){+.-.}, at: [] call_timer_fn+0xc8/0x670 [ 63.917721] [ 63.917721] stack backtrace: [ 63.922205] CPU: 1 PID: 7192 Comm: syz-executor166 Not tainted 4.14.147 #0 [ 63.929194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.938530] Call Trace: [ 63.941092] [ 63.943253] dump_stack+0x138/0x197 [ 63.946862] print_circular_bug.isra.0.cold+0x1cc/0x28f [ 63.952207] __lock_acquire+0x2cb3/0x4620 [ 63.956337] ? trace_hardirqs_on+0x10/0x10 [ 63.960554] ? debug_object_deactivate+0x1cc/0x350 [ 63.965468] lock_acquire+0x16f/0x430 [ 63.969378] ? pie_timer+0x70/0x680 [ 63.972999] _raw_spin_lock+0x2f/0x40 [ 63.976784] ? pie_timer+0x70/0x680 [ 63.980392] pie_timer+0x70/0x680 [ 63.983831] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 63.989265] call_timer_fn+0x161/0x670 [ 63.993133] ? pie_destroy+0x60/0x60 [ 63.996830] ? __next_timer_interrupt+0x140/0x140 [ 64.001655] ? trace_hardirqs_on_caller+0x19b/0x590 [ 64.006649] run_timer_softirq+0x5b4/0x1570 [ 64.010951] ? pie_destroy+0x60/0x60 [ 64.014688] ? add_timer+0xae0/0xae0 [ 64.018382] ? __lock_is_held+0xb6/0x140 [ 64.022426] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 64.027856] __do_softirq+0x244/0x9a0 [ 64.031639] ? sched_clock+0x2e/0x50 [ 64.035351] irq_exit+0x160/0x1b0 [ 64.038783] smp_apic_timer_interrupt+0x146/0x5e0 [ 64.043609] apic_timer_interrupt+0x96/0xa0 [ 64.047988] [ 64.050206] RIP: 0010:memcmp+0x4c/0xc0 [ 64.054069] RSP: 0018:ffff88808990f708 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff10 [ 64.061762] RAX: 0000000000000000 RBX: ffff88808990f80d RCX: 0000000000000004 [ 64.069027] RDX: 0000000000000005 RSI: ffff88809dd32625 RDI: ffff88808990f7b0 [ 64.076276] RBP: ffff88808990f730 R08: 000000002caf1dd4 R09: 0000000000000001 [ 64.083528] R10: 0000000000000000 R11: ffff88808af3e100 R12: dffffc0000000000 [ 64.090778] R13: ffff88808990f828 R14: 000000000000000f R15: ffff88809dd325b0 [ 64.098065] depot_save_stack+0x11c/0x410 [ 64.102214] save_stack+0xa9/0xd0 [ 64.105648] ? save_stack_trace+0x16/0x20 [ 64.109786] ? save_stack+0x45/0xd0 [ 64.113388] ? kasan_kmalloc+0xce/0xf0 [ 64.117272] ? kasan_slab_alloc+0xf/0x20 [ 64.121343] ? kmem_cache_alloc+0x12e/0x780 [ 64.125670] ? ebitmap_cpy+0xcd/0x270 [ 64.129457] ? mls_compute_sid+0x22f/0xd60 [ 64.133679] ? security_compute_sid.part.0+0xa8f/0x10f0 [ 64.139021] ? security_transition_sid+0xd6/0x130 [ 64.143846] ? selinux_socket_create+0x36d/0x4d0 [ 64.148584] ? security_socket_create+0x83/0xc0 [ 64.153232] ? __sock_create+0x67/0x620 [ 64.157227] ? SyS_socket+0xd3/0x170 [ 64.160925] ? do_syscall_64+0x1e8/0x640 [ 64.164965] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 64.170312] ? _raw_spin_unlock_irq+0x28/0x90 [ 64.174792] ? trace_hardirqs_on_caller+0x400/0x590 [ 64.179789] ? _raw_spin_unlock_irq+0x5e/0x90 [ 64.184274] ? finish_task_switch+0x178/0x650 [ 64.188752] ? finish_task_switch+0x14d/0x650 [ 64.193282] ? switch_mm_irqs_off+0x2c5/0xec0 [ 64.197760] ? save_trace+0x290/0x290 [ 64.201541] ? mark_held_locks+0xb1/0x100 [ 64.205683] ? kasan_unpoison_shadow+0x35/0x50 [ 64.210252] kasan_kmalloc+0xce/0xf0 [ 64.213949] kasan_slab_alloc+0xf/0x20 [ 64.217818] kmem_cache_alloc+0x12e/0x780 [ 64.221954] ? should_fail+0x355/0x41e [ 64.225824] ebitmap_cpy+0xcd/0x270 [ 64.229434] ? hashtab_search+0x196/0x230 [ 64.233565] mls_compute_sid+0x22f/0xd60 [ 64.237607] ? mls_convert_context+0x6a0/0x6a0 [ 64.242186] security_compute_sid.part.0+0xa8f/0x10f0 [ 64.247359] ? compute_sid_handle_invalid_context+0x270/0x270 [ 64.253229] ? do_futex+0x152/0x19e0 [ 64.256940] ? __fget+0x210/0x370 [ 64.260375] security_transition_sid+0xd6/0x130 [ 64.265025] selinux_socket_create+0x36d/0x4d0 [ 64.269585] ? selinux_ib_free_security+0x20/0x20 [ 64.274406] ? __fdget+0x1b/0x20 [ 64.277769] security_socket_create+0x83/0xc0 [ 64.282248] __sock_create+0x67/0x620 [ 64.286030] SyS_socket+0xd3/0x170 [ 64.289556] ? do_futex+0x19e0/0x19e0 [ 64.293348] ? move_addr_to_kernel+0x60/0x60 [ 64.297740] ? do_syscall_64+0x53/0x640 [ 64.301700] ? move_addr_to_kernel+0x60/0x60 [ 64.306089] do_syscall_64+0x1e8/0x640 [ 64.309956] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 64.314837] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 64.320011] RIP: 0033:0x446ce9 executing program executing program executing program executing program executing program executing program [ 64.323185] RSP: 002b:00007f5697f5edb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 [ 64.330910] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 0000000000446ce9 [ 64.338163] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000010 [ 64.345499] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 64.352750] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c [ 64.360035] R13: 00007ffea591daef R14: 00007f5697f5f9c0 R15: 0000000000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program