[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Warning: Permanently added '10.128.0.162' (ECDSA) to the list of known hosts. [ 77.648657][ T37] audit: type=1400 audit(1617949690.003:8): avc: denied { execmem } for pid=8402 comm="syz-executor236" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 77.727710][ T8412] IPVS: ftp: loaded support on port[0] = 21 [ 77.727715][ T8411] IPVS: ftp: loaded support on port[0] = 21 [ 77.736860][ T8414] IPVS: ftp: loaded support on port[0] = 21 [ 77.748069][ T8409] IPVS: ftp: loaded support on port[0] = 21 [ 77.754573][ T8413] IPVS: ftp: loaded support on port[0] = 21 [ 77.765458][ T8410] IPVS: ftp: loaded support on port[0] = 21 Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 78.094347][ T124] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.108427][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.123519][ T124] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.129892][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.165221][ T4787] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.212395][ T4787] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.232813][ T124] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.254193][ T124] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.271036][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.291946][ T124] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.316151][ T124] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.329070][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.335211][ T209] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.359334][ T209] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.383527][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.397826][ T209] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.408245][ T209] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.440894][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 78.463089][ T124] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.477455][ T124] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 78.531955][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 78.565179][ T124] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program [ 78.619857][ T124] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.633466][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 78.711865][ T124] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.725433][ T47] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program executing program [ 78.752741][ T124] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.763367][ T47] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.803191][ T8602] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program executing program [ 78.848128][ T8602] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 78.876982][ T25] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.885671][ T47] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.912193][ T25] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.921609][ T47] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.938991][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program executing program executing program [ 78.956321][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 92.040805][T10737] ttyprintk ttyprintk: tty_port_close_start: tty->count = 1 port count = 1049 [ 92.051249][ C0] [ 92.051259][ C0] ====================================================== [ 92.051269][ C0] WARNING: possible circular locking dependency detected [ 92.051277][ C0] 5.12.0-rc6-syzkaller #0 Not tainted [ 92.051285][ C0] ------------------------------------------------------ [ 92.051294][ C0] syz-executor236/10737 is trying to acquire lock: [ 92.051302][ C0] ffffffff8be805a0 (console_owner){....}-{0:0}, at: console_unlock+0x2f2/0xc80 [ 92.051336][ C0] [ 92.051341][ C0] but task is already holding lock: [ 92.051348][ C0] ffffffff90114698 (&port->lock){-.-.}-{2:2}, at: tty_port_close_start.part.0+0x28/0x550 [ 92.051379][ C0] [ 92.051385][ C0] which lock already depends on the new lock. [ 92.051392][ C0] [ 92.051396][ C0] [ 92.051402][ C0] the existing dependency chain (in reverse order) is: [ 92.051409][ C0] [ 92.051413][ C0] -> #2 (&port->lock){-.-.}-{2:2}: [ 92.051440][ C0] _raw_spin_lock_irqsave+0x39/0x50 [ 92.051447][ C0] tty_port_tty_get+0x1f/0x100 [ 92.051455][ C0] tty_port_default_wakeup+0x11/0x40 [ 92.051462][ C0] serial8250_tx_chars+0x487/0xa80 [ 92.051470][ C0] serial8250_handle_irq.part.0+0x328/0x3d0 [ 92.051478][ C0] serial8250_default_handle_irq+0xb2/0x220 [ 92.051487][ C0] serial8250_interrupt+0xfd/0x200 [ 92.051494][ C0] __handle_irq_event_percpu+0x303/0x8f0 [ 92.051502][ C0] handle_irq_event+0x102/0x290 [ 92.051509][ C0] handle_edge_irq+0x25f/0xd00 [ 92.051516][ C0] __common_interrupt+0x9e/0x200 [ 92.051524][ C0] common_interrupt+0x9f/0xd0 [ 92.051531][ C0] asm_common_interrupt+0x1e/0x40 [ 92.051538][ C0] _raw_spin_unlock_irqrestore+0x38/0x70 [ 92.051546][ C0] uart_write+0x30d/0x570 [ 92.051553][ C0] do_output_char+0x5de/0x850 [ 92.051560][ C0] n_tty_write+0x4c3/0xfd0 [ 92.051567][ C0] file_tty_write.constprop.0+0x526/0x910 executing program executing program [ 92.051575][ C0] redirected_tty_write+0xa1/0xc0 [ 92.051582][ C0] do_iter_readv_writev+0x46f/0x740 [ 92.051590][ C0] do_iter_write+0x188/0x670 [ 92.051597][ C0] vfs_writev+0x1aa/0x630 [ 92.051603][ C0] do_writev+0x139/0x300 [ 92.051609][ C0] do_syscall_64+0x2d/0x70 [ 92.051616][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 92.051622][ C0] [ 92.051626][ C0] -> #1 (&port_lock_key){-.-.}-{2:2}: [ 92.051653][ C0] _raw_spin_lock_irqsave+0x39/0x50 [ 92.051661][ C0] serial8250_console_write+0x8b2/0xae0 [ 92.051668][ C0] console_unlock+0x895/0xc80 [ 92.051675][ C0] vprintk_emit+0x1ca/0x560 [ 92.051682][ C0] vprintk_func+0x8d/0x1e0 [ 92.051688][ C0] printk+0xba/0xed [ 92.051694][ C0] register_console+0x606/0x840 [ 92.051702][ C0] univ8250_console_init+0x3a/0x46 [ 92.051709][ C0] console_init+0x3c7/0x596 [ 92.051715][ C0] start_kernel+0x306/0x496 [ 92.051722][ C0] secondary_startup_64_no_verify+0xb0/0xbb [ 92.051729][ C0] [ 92.051733][ C0] -> #0 (console_owner){....}-{0:0}: [ 92.051769][ C0] __lock_acquire+0x2b14/0x54c0 [ 92.051776][ C0] lock_acquire+0x1ab/0x740 [ 92.051783][ C0] console_unlock+0x371/0xc80 [ 92.051790][ C0] vprintk_emit+0x1ca/0x560 [ 92.051796][ C0] vprintk_func+0x8d/0x1e0 [ 92.051803][ C0] printk+0xba/0xed [ 92.051810][ C0] tty_port_close_start.part.0+0x503/0x550 executing program [ 92.051818][ C0] tty_port_close+0x46/0x170 [ 92.051824][ C0] tty_release+0x45e/0x1210 [ 92.051831][ C0] __fput+0x288/0x920 [ 92.051837][ C0] task_work_run+0xdd/0x1a0 [ 92.051845][ C0] exit_to_user_mode_prepare+0x249/0x250 [ 92.051853][ C0] syscall_exit_to_user_mode+0x19/0x60 [ 92.051860][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 92.051867][ C0] [ 92.051872][ C0] other info that might help us debug this: [ 92.051879][ C0] [ 92.051883][ C0] Chain exists of: executing program [ 92.051888][ C0] console_owner --> &port_lock_key --> &port->lock [ 92.051923][ C0] [ 92.051928][ C0] Possible unsafe locking scenario: [ 92.051934][ C0] [ 92.051938][ C0] CPU0 CPU1 [ 92.051945][ C0] ---- ---- [ 92.051951][ C0] lock(&port->lock); [ 92.051967][ C0] lock(&port_lock_key); [ 92.051984][ C0] lock(&port->lock); [ 92.052000][ C0] lock(console_owner); [ 92.052014][ C0] [ 92.052018][ C0] *** DEADLOCK *** [ 92.052023][ C0] [ 92.052027][ C0] 3 locks held by syz-executor236/10737: [ 92.052034][ C0] #0: ffff88802b6f71c0 (&tty->legacy_mutex){+.+.}-{3:3}, at: tty_lock+0xbd/0x120 [ 92.052065][ C0] #1: ffffffff90114698 (&port->lock){-.-.}-{2:2}, at: tty_port_close_start.part.0+0x28/0x550 [ 92.052099][ C0] #2: ffffffff8bf60920 (console_lock){+.+.}-{0:0}, at: vprintk_func+0x8d/0x1e0 [ 92.052130][ C0] [ 92.052135][ C0] stack backtrace: [ 92.052142][ C0] CPU: 0 PID: 10737 Comm: syz-executor236 Not tainted 5.12.0-rc6-syzkaller #0 [ 92.052152][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 92.052160][ C0] Call Trace: [ 92.052165][ C0] dump_stack+0x141/0x1d7 [ 92.052171][ C0] check_noncircular+0x25f/0x2e0 [ 92.052177][ C0] ? stack_trace_consume_entry+0x160/0x160 [ 92.052184][ C0] ? print_circular_bug+0x480/0x480 [ 92.052190][ C0] ? memcpy+0x39/0x60 [ 92.052195][ C0] ? lockdep_lock+0xc6/0x200 executing program [ 92.052201][ C0] ? call_rcu_zapped+0xb0/0xb0 [ 92.052208][ C0] __lock_acquire+0x2b14/0x54c0 [ 92.052214][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 92.052221][ C0] lock_acquire+0x1ab/0x740 [ 92.052227][ C0] ? console_unlock+0x2f2/0xc80 [ 92.052233][ C0] ? lock_release+0x720/0x720 [ 92.052239][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 92.052245][ C0] ? do_raw_spin_lock+0x120/0x2b0 [ 92.052251][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 92.052257][ C0] console_unlock+0x371/0xc80 [ 92.052263][ C0] ? console_unlock+0x2f2/0xc80 executing program [ 92.052269][ C0] ? devkmsg_read+0x730/0x730 [ 92.052275][ C0] ? lock_release+0x720/0x720 [ 92.052281][ C0] ? vprintk_func+0x8d/0x1e0 [ 92.052286][ C0] vprintk_emit+0x1ca/0x560 [ 92.052292][ C0] vprintk_func+0x8d/0x1e0 [ 92.052298][ C0] printk+0xba/0xed [ 92.052303][ C0] ? record_print_text.cold+0x16/0x16 [ 92.052310][ C0] ? _raw_spin_lock_irqsave+0x4e/0x50 [ 92.052316][ C0] tty_port_close_start.part.0+0x503/0x550 [ 92.052323][ C0] tty_port_close+0x46/0x170 [ 92.052328][ C0] ? tpk_open+0x60/0x60 [ 92.052334][ C0] tty_release+0x45e/0x1210 [ 92.052340][ C0] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 92.052346][ C0] __fput+0x288/0x920 [ 92.052352][ C0] ? tty_release_struct+0xe0/0xe0 [ 92.052358][ C0] task_work_run+0xdd/0x1a0 [ 92.052364][ C0] exit_to_user_mode_prepare+0x249/0x250 [ 92.052370][ C0] syscall_exit_to_user_mode+0x19/0x60 [ 92.052376][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 92.052382][ C0] RIP: 0033:0x40832b [ 92.052393][ C0] Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 03 fd ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 41 fd ff ff 8b 44 [ 92.052410][ C0] RSP: 002b:00007fffd7542540 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 92.052425][ C0] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 000000000040832b [ 92.052434][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 92.052443][ C0] RBP: 0000000000000032 R08: 0000000000000000 R09: 0000000000000000 executing program executing program executing program executing program [ 92.052451][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 00000000004d429c [ 92.052459][ C0] R13: 00007fffd7542590 R14: 00007fffd75425b0 R15: 00007fffd7542620 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program