[....] Starting enhanced syslogd: rsyslogd[ 16.228551] audit: type=1400 audit(1518158414.655:5): avc: denied { syslog } for pid=4015 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 18.926695] audit: type=1400 audit(1518158417.353:6): avc: denied { map } for pid=4154 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 Warning: Permanently added '10.128.0.54' (ECDSA) to the list of known hosts. executing program [ 25.205179] audit: type=1400 audit(1518158423.631:7): avc: denied { map } for pid=4168 comm="syzkaller166350" path="/root/syzkaller166350655" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 25.214204] ipt_CLUSTERIP: ipt_CLUSTERIP is deprecated and it will removed soon, use xt_cluster instead [ 25.245947] [ 25.247585] ====================================================== [ 25.253891] WARNING: possible circular locking dependency detected [ 25.260180] 4.15.0+ #304 Not tainted [ 25.263860] ------------------------------------------------------ [ 25.270145] syzkaller166350/4168 is trying to acquire lock: [ 25.275824] (rtnl_mutex){+.+.}, at: [<0000000020931df7>] rtnl_lock+0x17/0x20 [ 25.283080] [ 25.283080] but task is already holding lock: [ 25.289020] (&xt[i].mutex){+.+.}, at: [<00000000eb3c3d35>] xt_find_table_lock+0x3e/0x3e0 [ 25.297322] [ 25.297322] which lock already depends on the new lock. [ 25.297322] [ 25.305607] [ 25.305607] the existing dependency chain (in reverse order) is: [ 25.313201] [ 25.313201] -> #2 (&xt[i].mutex){+.+.}: [ 25.318636] __mutex_lock+0x16f/0x1a80 [ 25.323024] mutex_lock_nested+0x16/0x20 [ 25.327580] xt_find_table_lock+0x3e/0x3e0 [ 25.332307] xt_request_find_table_lock+0x28/0xc0 [ 25.337642] get_info+0x154/0x690 [ 25.341586] do_ipt_get_ctl+0x159/0xac0 [ 25.346055] nf_getsockopt+0x6a/0xc0 [ 25.350266] ip_getsockopt+0x15c/0x220 [ 25.354650] tcp_getsockopt+0x82/0xd0 [ 25.358945] sock_common_getsockopt+0x95/0xd0 [ 25.363933] SyS_getsockopt+0x178/0x340 [ 25.368404] do_syscall_64+0x282/0x940 [ 25.372786] entry_SYSCALL_64_after_hwframe+0x26/0x9b [ 25.378464] [ 25.378464] -> #1 (sk_lock-AF_INET){+.+.}: [ 25.384165] lock_sock_nested+0xc2/0x110 [ 25.388717] do_ip_setsockopt.isra.12+0x1d9/0x3210 [ 25.394137] ip_setsockopt+0x3a/0xa0 [ 25.398354] tcp_setsockopt+0x82/0xd0 [ 25.402645] sock_common_setsockopt+0x95/0xd0 [ 25.407628] SyS_setsockopt+0x189/0x360 [ 25.412094] do_syscall_64+0x282/0x940 [ 25.416475] entry_SYSCALL_64_after_hwframe+0x26/0x9b [ 25.422152] [ 25.422152] -> #0 (rtnl_mutex){+.+.}: [ 25.427412] lock_acquire+0x1d5/0x580 [ 25.431706] __mutex_lock+0x16f/0x1a80 [ 25.436083] mutex_lock_nested+0x16/0x20 [ 25.440637] rtnl_lock+0x17/0x20 [ 25.444499] unregister_netdevice_notifier+0x91/0x4e0 [ 25.450183] clusterip_tg_destroy+0x389/0x6e0 [ 25.455199] cleanup_entry+0x218/0x350 [ 25.459578] __do_replace+0x79d/0xa50 [ 25.463872] do_ipt_set_ctl+0x40f/0x5f0 [ 25.468339] nf_setsockopt+0x67/0xc0 [ 25.472545] ip_setsockopt+0x97/0xa0 [ 25.476754] tcp_setsockopt+0x82/0xd0 [ 25.481051] sock_common_setsockopt+0x95/0xd0 [ 25.486043] SyS_setsockopt+0x189/0x360 [ 25.490517] do_syscall_64+0x282/0x940 [ 25.494911] entry_SYSCALL_64_after_hwframe+0x26/0x9b [ 25.500589] [ 25.500589] other info that might help us debug this: [ 25.500589] [ 25.508702] Chain exists of: [ 25.508702] rtnl_mutex --> sk_lock-AF_INET --> &xt[i].mutex [ 25.508702] [ 25.518906] Possible unsafe locking scenario: [ 25.518906] [ 25.524935] CPU0 CPU1 [ 25.529572] ---- ---- [ 25.534206] lock(&xt[i].mutex); [ 25.537631] lock(sk_lock-AF_INET); [ 25.543835] lock(&xt[i].mutex); [ 25.549775] lock(rtnl_mutex); [ 25.553028] [ 25.553028] *** DEADLOCK *** [ 25.553028] [ 25.559059] 1 lock held by syzkaller166350/4168: [ 25.563779] #0: (&xt[i].mutex){+.+.}, at: [<00000000eb3c3d35>] xt_find_table_lock+0x3e/0x3e0 [ 25.572521] [ 25.572521] stack backtrace: [ 25.576993] CPU: 0 PID: 4168 Comm: syzkaller166350 Not tainted 4.15.0+ #304 [ 25.584066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.593393] Call Trace: [ 25.595957] dump_stack+0x194/0x257 [ 25.599564] ? arch_local_irq_restore+0x53/0x53 [ 25.604210] print_circular_bug.isra.38+0x2cd/0x2dc [ 25.609214] ? save_trace+0xe0/0x2b0 [ 25.612904] __lock_acquire+0x30a8/0x3e00 [ 25.617031] ? print_irqtrace_events+0x270/0x270 [ 25.621768] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 25.626934] ? print_irqtrace_events+0x270/0x270 [ 25.631662] ? print_irqtrace_events+0x270/0x270 [ 25.636388] ? __lock_acquire+0x664/0x3e00 [ 25.640598] ? __lock_acquire+0x664/0x3e00 [ 25.644829] ? __is_insn_slot_addr+0x1fc/0x330 [ 25.649385] ? lock_downgrade+0x980/0x980 [ 25.653510] ? lock_release+0xa40/0xa40 [ 25.657459] ? bpf_prog_kallsyms_find+0xbd/0x440 [ 25.662189] ? modules_open+0xa0/0xa0 [ 25.665965] ? trace_raw_output_xdp_redirect_map_err+0x440/0x440 [ 25.672086] ? lock_downgrade+0x980/0x980 [ 25.676210] ? __free_insn_slot+0x5c0/0x5c0 [ 25.680506] lock_acquire+0x1d5/0x580 [ 25.684279] ? lock_acquire+0x1d5/0x580 [ 25.688224] ? rtnl_lock+0x17/0x20 [ 25.691735] ? lock_release+0xa40/0xa40 [ 25.695682] ? trace_event_raw_event_sched_switch+0x810/0x810 [ 25.701549] ? unwind_get_return_address+0x61/0xa0 [ 25.706454] ? rcu_note_context_switch+0x710/0x710 [ 25.711355] ? __might_sleep+0x95/0x190 [ 25.715297] ? rtnl_lock+0x17/0x20 [ 25.718807] __mutex_lock+0x16f/0x1a80 [ 25.722668] ? rtnl_lock+0x17/0x20 [ 25.726183] ? save_trace+0xe0/0x2b0 [ 25.729872] ? rtnl_lock+0x17/0x20 [ 25.733383] ? __lock_acquire+0x36c0/0x3e00 [ 25.737687] ? mutex_lock_io_nested+0x1900/0x1900 [ 25.742509] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 25.747671] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 25.752832] ? lock_release+0xa40/0xa40 [ 25.756781] ? __free_insn_slot+0x5c0/0x5c0 [ 25.761073] ? is_bpf_text_address+0xa4/0x120 [ 25.765538] ? rcutorture_record_progress+0x10/0x10 [ 25.770528] ? kernel_text_address+0x102/0x140 [ 25.775083] ? __kernel_text_address+0xd/0x40 [ 25.779563] ? unwind_get_return_address+0x61/0xa0 [ 25.784467] ? __save_stack_trace+0x7e/0xd0 [ 25.788762] ? check_noncircular+0x20/0x20 [ 25.792972] ? save_stack+0x43/0xd0 [ 25.796567] ? kasan_kmalloc+0xad/0xe0 [ 25.800422] ? __kmalloc_node+0x47/0x70 [ 25.804367] ? kvmalloc_node+0x99/0xd0 [ 25.808230] ? __do_replace+0x2e3/0xa50 [ 25.812182] ? do_ipt_set_ctl+0x40f/0x5f0 [ 25.816301] ? pcpu_chunk_relocate+0x315/0x770 [ 25.820854] mutex_lock_nested+0x16/0x20 [ 25.824896] ? mutex_lock_nested+0x16/0x20 [ 25.829105] rtnl_lock+0x17/0x20 [ 25.832447] unregister_netdevice_notifier+0x91/0x4e0 [ 25.837609] ? clusterip_tg_destroy+0x36a/0x6e0 [ 25.842253] ? lock_downgrade+0x980/0x980 [ 25.846372] ? register_netdevice_notifier+0x860/0x860 [ 25.851627] ? __lock_is_held+0xb6/0x140 [ 25.855663] ? mark_held_locks+0xaf/0x100 [ 25.859778] ? do_raw_spin_trylock+0x190/0x190 [ 25.864332] ? __local_bh_enable_ip+0x121/0x230 [ 25.868972] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.873962] ? clusterip_tg_destroy+0x350/0x6e0 [ 25.878613] ? trace_hardirqs_on+0xd/0x10 [ 25.882733] clusterip_tg_destroy+0x389/0x6e0 [ 25.887287] ? free_modinfo_version+0x70/0x70 [ 25.891754] ? clusterip_tg+0xa40/0xa40 [ 25.895699] ? cpumask_next+0x24/0x30 [ 25.899472] ? __lock_is_held+0xb6/0x140 [ 25.903506] ? clusterip_tg+0xa40/0xa40 [ 25.907451] cleanup_entry+0x218/0x350 [ 25.911310] ? cleanup_match+0x220/0x220 [ 25.915340] ? trace_event_raw_event_sched_switch+0x810/0x810 [ 25.921194] ? find_next_bit+0x92/0x100 [ 25.925137] __do_replace+0x79d/0xa50 [ 25.928916] ? compat_table_info+0x470/0x470 [ 25.933300] ? kasan_check_write+0x14/0x20 [ 25.937503] ? _copy_from_user+0x99/0x110 [ 25.941622] do_ipt_set_ctl+0x40f/0x5f0 [ 25.945580] ? translate_compat_table+0x1b90/0x1b90 [ 25.950568] ? mutex_unlock+0xd/0x10 [ 25.954255] ? nf_sockopt_find.constprop.0+0x1a7/0x220 [ 25.959509] nf_setsockopt+0x67/0xc0 [ 25.963194] ip_setsockopt+0x97/0xa0 [ 25.966877] tcp_setsockopt+0x82/0xd0 [ 25.970650] sock_common_setsockopt+0x95/0xd0 [ 25.975114] SyS_setsockopt+0x189/0x360 [ 25.979062] ? SyS_recv+0x40/0x40 [ 25.982489] ? mm_fault_error+0x2c0/0x2c0 [ 25.986605] ? move_addr_to_kernel+0x60/0x60 [ 25.990983] ? do_syscall_64+0xb7/0x940 [ 25.994933] ? SyS_recv+0x40/0x40 [ 25.998358] do_syscall_64+0x282/0x940 [ 26.002215] ? __do_page_fault+0xc90/0xc90 [ 26.006421] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 26.011150] ? syscall_return_slowpath+0x550/0x550 [ 26.016051] ? syscall_return_slowpath+0x2ac/0x550 [ 26.020952] ? prepare_exit_to_usermode+0x350/0x350 [ 26.025944] ? retint_user+0x18/0x18 [ 26.029631] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 26.034447] entry_SYSCALL_64_after_hwframe+0x26/0x9b [ 26.039606] RIP: 0033:0x44454a [ 26.042766] RSP: 002b:00007ffd1306eda8 EFLAGS: 00000206 ORIG_RAX: 0000000000000036 [ 26.050442] RAX: ffffffffffffffda RBX: 00000000006cd100 RCX: 000000000044454a executing program executing program executing program executing program executing program executing program executing program [ 26.057681] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003 [ 26.064929] RBP: 00000000006cd100 R08: 00000000000002d8 R09: 0000000001731880 [ 26.072171] R10: 00000000006cd528 R11: 0000000000000206 R12: 0000000000000003 [ 26.079415] R13: 00000000006d00a8 R14: 00000000006d0050 R15: 00000000004a3787 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program