[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.207' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 719.252789][ T6850] FAULT_INJECTION: forcing a failure. [ 719.252789][ T6850] name failslab, interval 1, probability 0, space 0, times 1 [ 719.267662][ T6853] FAULT_INJECTION: forcing a failure. [ 719.267662][ T6853] name failslab, interval 1, probability 0, space 0, times 1 [ 719.275543][ T6854] FAULT_INJECTION: forcing a failure. [ 719.275543][ T6854] name failslab, interval 1, probability 0, space 0, times 1 [ 719.288270][ T6855] FAULT_INJECTION: forcing a failure. [ 719.288270][ T6855] name failslab, interval 1, probability 0, space 0, times 1 [ 719.296862][ T6851] FAULT_INJECTION: forcing a failure. [ 719.296862][ T6851] name failslab, interval 1, probability 0, space 0, times 1 [ 719.324262][ T6852] FAULT_INJECTION: forcing a failure. [ 719.324262][ T6852] name failslab, interval 1, probability 0, space 0, times 1 [ 719.331140][ T6853] CPU: 1 PID: 6853 Comm: syz-executor167 Not tainted 5.8.0-rc3-syzkaller #0 [ 719.345798][ T6853] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 719.356405][ T6853] Call Trace: [ 719.359691][ T6853] dump_stack+0x18f/0x20d [ 719.364020][ T6853] should_fail.cold+0x5/0x14 [ 719.368649][ T6853] should_failslab+0x5/0xf [ 719.373318][ T6853] kmem_cache_alloc_node+0x53/0x3c0 [ 719.379063][ T6853] __alloc_skb+0x71/0x550 [ 719.383417][ T6853] tipc_buf_acquire+0x28/0xf0 [ 719.388096][ T6853] tipc_msg_reverse+0x1ee/0x970 [ 719.394421][ T6853] tipc_sk_respond+0x247/0x540 [ 719.399276][ T6853] ? trace_tipc_sk_rej_msg+0x350/0x350 [ 719.404731][ T6853] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 719.410504][ T6853] ? kmem_cache_free+0x261/0x310 [ 719.415527][ T6853] ? kfree_skbmem+0x166/0x1b0 [ 719.420714][ T6853] __tipc_shutdown+0x9ce/0xeb0 [ 719.425569][ T6853] ? tsk_rej_rx_queue+0x1d0/0x1d0 [ 719.430721][ T6853] ? __sock_release+0x280/0x280 [ 719.435663][ T6853] ? __init_waitqueue_head+0x110/0x110 [ 719.441129][ T6853] ? __local_bh_enable_ip+0x159/0x250 [ 719.446674][ T6853] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 719.452691][ T6853] ? lock_is_held_type+0xb0/0xe0 [ 719.457973][ T6853] ? __sock_release+0x280/0x280 [ 719.463006][ T6853] tipc_release+0x13f/0x1a70 [ 719.467656][ T6853] ? tipc_shutdown+0x640/0x640 [ 719.472419][ T6853] ? down_write+0xdb/0x150 [ 719.476834][ T6853] ? down_write_killable+0x170/0x170 [ 719.482135][ T6853] ? locks_remove_file+0x319/0x580 [ 719.487237][ T6853] ? fsnotify_first_mark+0x1f0/0x1f0 [ 719.492506][ T6853] ? fcntl_setlk+0xf60/0xf60 [ 719.497084][ T6853] ? __sock_release+0x280/0x280 [ 719.501919][ T6853] __sock_release+0xcd/0x280 [ 719.506500][ T6853] sock_close+0x18/0x20 [ 719.510646][ T6853] __fput+0x33c/0x880 [ 719.514712][ T6853] task_work_run+0xdd/0x190 [ 719.519357][ T6853] __prepare_exit_to_usermode+0x1e9/0x1f0 [ 719.525427][ T6853] do_syscall_64+0x6c/0xe0 [ 719.529927][ T6853] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 719.536082][ T6853] RIP: 0033:0x446df9 [ 719.540234][ T6853] Code: Bad RIP value. [ 719.544373][ T6853] RSP: 002b:00007f4766792cb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000021 [ 719.552945][ T6853] RAX: 0000000000000005 RBX: 00007f4766792cc0 RCX: 0000000000446df9 [ 719.561269][ T6853] RDX: 0000000000000001 RSI: 0000000000000005 RDI: 0000000000000003 [ 719.569224][ T6853] RBP: 0000000000000006 R08: 0000000000000001 R09: 0000000000000031 [ 719.577186][ T6853] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc5c [ 719.585150][ T6853] R13: 00007fff2c969dbf R14: 00007f47667939c0 R15: 20c49ba5e353f7cf [ 719.593221][ T6852] CPU: 0 PID: 6852 Comm: syz-executor167 Not tainted 5.8.0-rc3-syzkaller #0 [ 719.601896][ T6852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 719.612050][ T6852] Call Trace: [ 719.615345][ T6852] dump_stack+0x18f/0x20d [ 719.619668][ T6852] should_fail.cold+0x5/0x14 [ 719.624247][ T6852] should_failslab+0x5/0xf [ 719.628658][ T6852] kmem_cache_alloc_node+0x53/0x3c0 [ 719.633851][ T6852] __alloc_skb+0x71/0x550 [ 719.638262][ T6852] tipc_buf_acquire+0x28/0xf0 [ 719.642930][ T6852] tipc_msg_reverse+0x1ee/0x970 [ 719.647776][ T6852] tipc_sk_respond+0x247/0x540 [ 719.652550][ T6852] ? trace_tipc_sk_rej_msg+0x350/0x350 [ 719.657996][ T6852] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 719.663528][ T6852] ? kmem_cache_free+0x261/0x310 [ 719.668452][ T6852] ? kfree_skbmem+0x166/0x1b0 [ 719.673113][ T6852] __tipc_shutdown+0x9ce/0xeb0 [ 719.677865][ T6852] ? tsk_rej_rx_queue+0x1d0/0x1d0 [ 719.682876][ T6852] ? __sock_release+0x280/0x280 [ 719.687732][ T6852] ? __init_waitqueue_head+0x110/0x110 [ 719.693206][ T6852] ? __local_bh_enable_ip+0x159/0x250 [ 719.698657][ T6852] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 719.704652][ T6852] ? lock_is_held_type+0xb0/0xe0 [ 719.709583][ T6852] ? __sock_release+0x280/0x280 [ 719.715241][ T6852] tipc_release+0x13f/0x1a70 [ 719.719823][ T6852] ? tipc_shutdown+0x640/0x640 [ 719.724573][ T6852] ? down_write+0xdb/0x150 [ 719.728972][ T6852] ? down_write_killable+0x170/0x170 [ 719.734239][ T6852] ? locks_remove_file+0x319/0x580 [ 719.739333][ T6852] ? fsnotify_first_mark+0x1f0/0x1f0 [ 719.744618][ T6852] ? fcntl_setlk+0xf60/0xf60 [ 719.750016][ T6852] ? __sock_release+0x280/0x280 [ 719.754847][ T6852] __sock_release+0xcd/0x280 executing program [ 719.759423][ T6852] sock_close+0x18/0x20 [ 719.763566][ T6852] __fput+0x33c/0x880 [ 719.767568][ T6852] task_work_run+0xdd/0x190 [ 719.772063][ T6852] __prepare_exit_to_usermode+0x1e9/0x1f0 [ 719.777787][ T6852] do_syscall_64+0x6c/0xe0 [ 719.782204][ T6852] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 719.788090][ T6852] RIP: 0033:0x446df9 [ 719.791971][ T6852] Code: Bad RIP value. [ 719.796025][ T6852] RSP: 002b:00007f4766792cb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000021 [ 719.804605][ T6852] RAX: 0000000000000005 RBX: 00007f4766792cc0 RCX: 0000000000446df9 [ 719.812583][ T6852] RDX: 0000000000000001 RSI: 0000000000000005 RDI: 0000000000000003 [ 719.820553][ T6852] RBP: 0000000000000006 R08: 0000000000000001 R09: 0000000000000031 [ 719.828517][ T6852] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc5c [ 719.836483][ T6852] R13: 00007fff2c969dbf R14: 00007f47667939c0 R15: 20c49ba5e353f7cf [ 719.844467][ T6850] CPU: 1 PID: 6850 Comm: syz-executor167 Not tainted 5.8.0-rc3-syzkaller #0 [ 719.853233][ T6850] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 719.863283][ T6850] Call Trace: [ 719.866563][ T6850] dump_stack+0x18f/0x20d [ 719.870880][ T6850] should_fail.cold+0x5/0x14 [ 719.875460][ T6850] should_failslab+0x5/0xf [ 719.879861][ T6850] kmem_cache_alloc_node+0x53/0x3c0 [ 719.885086][ T6850] __alloc_skb+0x71/0x550 [ 719.889410][ T6850] tipc_buf_acquire+0x28/0xf0 [ 719.894072][ T6850] tipc_msg_reverse+0x1ee/0x970 [ 719.898909][ T6850] tipc_sk_respond+0x247/0x540 [ 719.903843][ T6850] ? trace_tipc_sk_rej_msg+0x350/0x350 [ 719.909300][ T6850] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 719.914829][ T6850] ? kmem_cache_free+0x261/0x310 [ 719.919755][ T6850] ? kfree_skbmem+0x166/0x1b0 [ 719.924419][ T6850] __tipc_shutdown+0x9ce/0xeb0 [ 719.929173][ T6850] ? tsk_rej_rx_queue+0x1d0/0x1d0 [ 719.934183][ T6850] ? __init_waitqueue_head+0x110/0x110 [ 719.939630][ T6850] ? preempt_schedule_thunk+0x16/0x18 [ 719.944992][ T6850] ? lock_is_held_type+0xb0/0xe0 [ 719.949919][ T6850] ? __sock_release+0x280/0x280 [ 719.954750][ T6850] tipc_release+0x13f/0x1a70 [ 719.959348][ T6850] ? tipc_shutdown+0x640/0x640 [ 719.964095][ T6850] ? down_write+0xdb/0x150 [ 719.968505][ T6850] ? down_write_killable+0x170/0x170 [ 719.973778][ T6850] ? locks_remove_file+0x319/0x580 [ 719.978877][ T6850] ? fsnotify_first_mark+0x1f0/0x1f0 [ 719.984211][ T6850] ? fcntl_setlk+0xf60/0xf60 [ 719.988877][ T6850] ? __sock_release+0x280/0x280 [ 719.993723][ T6850] __sock_release+0xcd/0x280 [ 719.998306][ T6850] sock_close+0x18/0x20 [ 720.002453][ T6850] __fput+0x33c/0x880 [ 720.006424][ T6850] task_work_run+0xdd/0x190 [ 720.011003][ T6850] __prepare_exit_to_usermode+0x1e9/0x1f0 [ 720.016707][ T6850] do_syscall_64+0x6c/0xe0 [ 720.021111][ T6850] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 720.026984][ T6850] RIP: 0033:0x446df9 [ 720.030855][ T6850] Code: Bad RIP value. [ 720.034900][ T6850] RSP: 002b:00007f4766792cb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000021 [ 720.043293][ T6850] RAX: 0000000000000005 RBX: 00007f4766792cc0 RCX: 0000000000446df9 [ 720.051251][ T6850] RDX: 0000000000000001 RSI: 0000000000000005 RDI: 0000000000000003 [ 720.059212][ T6850] RBP: 0000000000000006 R08: 0000000000000001 R09: 0000000000000031 [ 720.067165][ T6850] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc5c [ 720.075119][ T6850] R13: 00007fff2c969dbf R14: 00007f47667939c0 R15: 20c49ba5e353f7cf [ 720.083094][ T6854] CPU: 0 PID: 6854 Comm: syz-executor167 Not tainted 5.8.0-rc3-syzkaller #0 [ 720.091771][ T6854] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 720.101823][ T6854] Call Trace: [ 720.105203][ T6854] dump_stack+0x18f/0x20d [ 720.109541][ T6854] should_fail.cold+0x5/0x14 [ 720.114139][ T6854] should_failslab+0x5/0xf [ 720.118559][ T6854] kmem_cache_alloc_node+0x53/0x3c0 [ 720.123774][ T6854] __alloc_skb+0x71/0x550 [ 720.128715][ T6854] tipc_buf_acquire+0x28/0xf0 [ 720.133388][ T6854] tipc_msg_reverse+0x1ee/0x970 [ 720.138417][ T6854] tipc_sk_respond+0x247/0x540 [ 720.143277][ T6854] ? trace_tipc_sk_rej_msg+0x350/0x350 [ 720.148721][ T6854] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 720.154250][ T6854] ? kmem_cache_free+0x261/0x310 [ 720.159173][ T6854] ? kfree_skbmem+0x166/0x1b0 [ 720.163836][ T6854] __tipc_shutdown+0x9ce/0xeb0 [ 720.168595][ T6854] ? tsk_rej_rx_queue+0x1d0/0x1d0 [ 720.173613][ T6854] ? __sock_release+0x280/0x280 [ 720.178456][ T6854] ? __init_waitqueue_head+0x110/0x110 [ 720.183896][ T6854] ? __local_bh_enable_ip+0x159/0x250 [ 720.189253][ T6854] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 720.195218][ T6854] ? lock_is_held_type+0xb0/0xe0 [ 720.200228][ T6854] ? __sock_release+0x280/0x280 [ 720.205060][ T6854] tipc_release+0x13f/0x1a70 [ 720.209641][ T6854] ? tipc_shutdown+0x640/0x640 [ 720.214390][ T6854] ? down_write+0xdb/0x150 [ 720.218792][ T6854] ? down_write_killable+0x170/0x170 [ 720.224066][ T6854] ? locks_remove_file+0x319/0x580 [ 720.229178][ T6854] ? fsnotify_first_mark+0x1f0/0x1f0 [ 720.234451][ T6854] ? fcntl_setlk+0xf60/0xf60 [ 720.239025][ T6854] ? __sock_release+0x280/0x280 [ 720.243872][ T6854] __sock_release+0xcd/0x280 [ 720.248456][ T6854] sock_close+0x18/0x20 [ 720.252722][ T6854] __fput+0x33c/0x880 [ 720.256698][ T6854] task_work_run+0xdd/0x190 [ 720.261190][ T6854] __prepare_exit_to_usermode+0x1e9/0x1f0 [ 720.266895][ T6854] do_syscall_64+0x6c/0xe0 [ 720.271294][ T6854] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 720.277183][ T6854] RIP: 0033:0x446df9 [ 720.281054][ T6854] Code: Bad RIP value. [ 720.285298][ T6854] RSP: 002b:00007f4766792cb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000021 [ 720.293732][ T6854] RAX: 0000000000000005 RBX: 00007f4766792cc0 RCX: 0000000000446df9 [ 720.301685][ T6854] RDX: 0000000000000001 RSI: 0000000000000005 RDI: 0000000000000003 [ 720.309636][ T6854] RBP: 0000000000000006 R08: 0000000000000001 R09: 0000000000000031 [ 720.317606][ T6854] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc5c [ 720.325582][ T6854] R13: 00007fff2c969dbf R14: 00007f47667939c0 R15: 20c49ba5e353f7cf [ 720.333562][ T6855] CPU: 1 PID: 6855 Comm: syz-executor167 Not tainted 5.8.0-rc3-syzkaller #0 [ 720.342454][ T6855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 720.352503][ T6855] Call Trace: [ 720.355787][ T6855] dump_stack+0x18f/0x20d [ 720.360115][ T6855] should_fail.cold+0x5/0x14 [ 720.364698][ T6855] should_failslab+0x5/0xf [ 720.369360][ T6855] kmem_cache_alloc_node+0x53/0x3c0 [ 720.374566][ T6855] __alloc_skb+0x71/0x550 [ 720.378887][ T6855] tipc_buf_acquire+0x28/0xf0 [ 720.383574][ T6855] tipc_msg_reverse+0x1ee/0x970 [ 720.388436][ T6855] tipc_sk_respond+0x247/0x540 [ 720.393192][ T6855] ? trace_tipc_sk_rej_msg+0x350/0x350 [ 720.398647][ T6855] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 720.404187][ T6855] ? kmem_cache_free+0x261/0x310 [ 720.409108][ T6855] ? kfree_skbmem+0x166/0x1b0 [ 720.413793][ T6855] __tipc_shutdown+0x9ce/0xeb0 [ 720.418563][ T6855] ? tsk_rej_rx_queue+0x1d0/0x1d0 [ 720.423571][ T6855] ? __sock_release+0x280/0x280 [ 720.428413][ T6855] ? __init_waitqueue_head+0x110/0x110 [ 720.433867][ T6855] ? __local_bh_enable_ip+0x159/0x250 [ 720.439242][ T6855] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 720.445747][ T6855] ? lock_is_held_type+0xb0/0xe0 [ 720.450830][ T6855] ? __sock_release+0x280/0x280 [ 720.455708][ T6855] tipc_release+0x13f/0x1a70 [ 720.460292][ T6855] ? tipc_shutdown+0x640/0x640 [ 720.465043][ T6855] ? down_write+0xdb/0x150 [ 720.469447][ T6855] ? down_write_killable+0x170/0x170 [ 720.474978][ T6855] ? locks_remove_file+0x319/0x580 [ 720.480072][ T6855] ? fsnotify_first_mark+0x1f0/0x1f0 [ 720.485340][ T6855] ? fcntl_setlk+0xf60/0xf60 [ 720.489915][ T6855] ? __sock_release+0x280/0x280 [ 720.494931][ T6855] __sock_release+0xcd/0x280 [ 720.499519][ T6855] sock_close+0x18/0x20 [ 720.503780][ T6855] __fput+0x33c/0x880 [ 720.507755][ T6855] task_work_run+0xdd/0x190 [ 720.512257][ T6855] __prepare_exit_to_usermode+0x1e9/0x1f0 [ 720.518104][ T6855] do_syscall_64+0x6c/0xe0 [ 720.522624][ T6855] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 720.528511][ T6855] RIP: 0033:0x446df9 [ 720.532387][ T6855] Code: Bad RIP value. [ 720.536437][ T6855] RSP: 002b:00007f4766792cb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000021 [ 720.544830][ T6855] RAX: 0000000000000005 RBX: 00007f4766792cc0 RCX: 0000000000446df9 [ 720.552785][ T6855] RDX: 0000000000000001 RSI: 0000000000000005 RDI: 0000000000000003 executing program [ 720.560740][ T6855] RBP: 0000000000000006 R08: 0000000000000001 R09: 0000000000000031 [ 720.568697][ T6855] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc5c [ 720.576651][ T6855] R13: 00007fff2c969dbf R14: 00007f47667939c0 R15: 20c49ba5e353f7cf [ 720.584626][ T6851] CPU: 0 PID: 6851 Comm: syz-executor167 Not tainted 5.8.0-rc3-syzkaller #0 [ 720.593399][ T6851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 720.603450][ T6851] Call Trace: [ 720.606748][ T6851] dump_stack+0x18f/0x20d [ 720.611089][ T6851] should_fail.cold+0x5/0x14 [ 720.615693][ T6851] should_failslab+0x5/0xf [ 720.620119][ T6851] kmem_cache_alloc_node+0x53/0x3c0 [ 720.625330][ T6851] __alloc_skb+0x71/0x550 [ 720.629679][ T6851] tipc_buf_acquire+0x28/0xf0 [ 720.634347][ T6851] tipc_msg_reverse+0x1ee/0x970 [ 720.639197][ T6851] tipc_sk_respond+0x247/0x540 [ 720.643952][ T6851] ? trace_tipc_sk_rej_msg+0x350/0x350 [ 720.649405][ T6851] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 720.654947][ T6851] ? kmem_cache_free+0x261/0x310 [ 720.659879][ T6851] ? kfree_skbmem+0x166/0x1b0 [ 720.664553][ T6851] __tipc_shutdown+0x9ce/0xeb0 [ 720.669313][ T6851] ? tsk_rej_rx_queue+0x1d0/0x1d0 [ 720.674338][ T6851] ? __sock_release+0x280/0x280 [ 720.679179][ T6851] ? __init_waitqueue_head+0x110/0x110 [ 720.684634][ T6851] ? __local_bh_enable_ip+0x159/0x250 [ 720.689996][ T6851] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 720.695968][ T6851] ? lock_is_held_type+0xb0/0xe0 [ 720.700899][ T6851] ? __sock_release+0x280/0x280 [ 720.705739][ T6851] tipc_release+0x13f/0x1a70 [ 720.710331][ T6851] ? tipc_shutdown+0x640/0x640 [ 720.715174][ T6851] ? down_write+0xdb/0x150 [ 720.719598][ T6851] ? down_write_killable+0x170/0x170 [ 720.724877][ T6851] ? locks_remove_file+0x319/0x580 [ 720.729979][ T6851] ? fsnotify_first_mark+0x1f0/0x1f0 [ 720.735256][ T6851] ? fcntl_setlk+0xf60/0xf60 [ 720.739839][ T6851] ? __sock_release+0x280/0x280 [ 720.745027][ T6851] __sock_release+0xcd/0x280 [ 720.749618][ T6851] sock_close+0x18/0x20 [ 720.753773][ T6851] __fput+0x33c/0x880 [ 720.757792][ T6851] task_work_run+0xdd/0x190 [ 720.762296][ T6851] __prepare_exit_to_usermode+0x1e9/0x1f0 [ 720.768011][ T6851] do_syscall_64+0x6c/0xe0 [ 720.772420][ T6851] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 720.778307][ T6851] RIP: 0033:0x446df9 [ 720.782189][ T6851] Code: Bad RIP value. [ 720.786424][ T6851] RSP: 002b:00007f4766792cb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000021 [ 720.794822][ T6851] RAX: 0000000000000005 RBX: 00007f4766792cc0 RCX: 0000000000446df9 [ 720.802784][ T6851] RDX: 0000000000000001 RSI: 0000000000000005 RDI: 0000000000000003 executing program executing program [ 720.810744][ T6851] RBP: 0000000000000006 R08: 0000000000000001 R09: 0000000000000031 [ 720.818708][ T6851] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc5c [ 720.826714][ T6851] R13: 00007fff2c969dbf R14: 00007f47667939c0 R15: 20c49ba5e353f7cf [ 720.928111][ T6866] FAULT_INJECTION: forcing a failure. [ 720.928111][ T6866] name failslab, interval 1, probability 0, space 0, times 0 [ 720.960408][ T6866] CPU: 0 PID: 6866 Comm: syz-executor167 Not tainted 5.8.0-rc3-syzkaller #0 [ 720.969110][ T6866] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 720.979155][ T6866] Call Trace: [ 720.982443][ T6866] dump_stack+0x18f/0x20d [ 720.986778][ T6866] should_fail.cold+0x5/0x14 [ 720.991364][ T6866] should_failslab+0x5/0xf [ 720.995771][ T6866] kmem_cache_alloc_node+0x53/0x3c0 [ 721.000966][ T6866] __alloc_skb+0x71/0x550 [ 721.005293][ T6866] tipc_buf_acquire+0x28/0xf0 [ 721.009963][ T6866] tipc_msg_reverse+0x1ee/0x970 [ 721.014811][ T6866] tipc_sk_respond+0x247/0x540 [ 721.019575][ T6866] ? trace_tipc_sk_rej_msg+0x350/0x350 [ 721.025036][ T6866] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 721.031099][ T6866] ? kmem_cache_free+0x261/0x310 [ 721.036132][ T6866] ? kfree_skbmem+0x166/0x1b0 [ 721.040804][ T6866] __tipc_shutdown+0x9ce/0xeb0 [ 721.045650][ T6866] ? tsk_rej_rx_queue+0x1d0/0x1d0 [ 721.050692][ T6866] ? __sock_release+0x280/0x280 [ 721.055534][ T6866] ? __init_waitqueue_head+0x110/0x110 [ 721.060985][ T6866] ? __local_bh_enable_ip+0x159/0x250 [ 721.066348][ T6866] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 721.072320][ T6866] ? lock_is_held_type+0xb0/0xe0 [ 721.077256][ T6866] ? __sock_release+0x280/0x280 [ 721.082096][ T6866] tipc_release+0x13f/0x1a70 [ 721.086737][ T6866] ? tipc_shutdown+0x640/0x640 [ 721.091491][ T6866] ? down_write+0xdb/0x150 [ 721.095901][ T6866] ? down_write_killable+0x170/0x170 [ 721.101180][ T6866] ? locks_remove_file+0x319/0x580 [ 721.106284][ T6866] ? fsnotify_first_mark+0x1f0/0x1f0 [ 721.111561][ T6866] ? fcntl_setlk+0xf60/0xf60 [ 721.116146][ T6866] ? __sock_release+0x280/0x280 [ 721.120985][ T6866] __sock_release+0xcd/0x280 [ 721.125571][ T6866] sock_close+0x18/0x20 [ 721.129718][ T6866] __fput+0x33c/0x880 [ 721.133700][ T6866] task_work_run+0xdd/0x190 [ 721.138204][ T6866] __prepare_exit_to_usermode+0x1e9/0x1f0 [ 721.144013][ T6866] do_syscall_64+0x6c/0xe0 [ 721.148424][ T6866] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 721.154304][ T6866] RIP: 0033:0x446df9 [ 721.158180][ T6866] Code: Bad RIP value. [ 721.162237][ T6866] RSP: 002b:00007f4766792cb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000021 [ 721.170637][ T6866] RAX: 0000000000000005 RBX: 00007f4766792cc0 RCX: 0000000000446df9 [ 721.178601][ T6866] RDX: 0000000000000001 RSI: 0000000000000005 RDI: 0000000000000003 [ 721.186561][ T6866] RBP: 0000000000000006 R08: 0000000000000001 R09: 0000000000000031 [ 721.194527][ T6866] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc5c [ 721.202487][ T6866] R13: 00007fff2c969dbf R14: 00007f47667939c0 R15: 20c49ba5e353f7cf [ 721.222341][ T6868] FAULT_INJECTION: forcing a failure. [ 721.222341][ T6868] name failslab, interval 1, probability 0, space 0, times 0 [ 721.268412][ T6868] CPU: 0 PID: 6868 Comm: syz-executor167 Not tainted 5.8.0-rc3-syzkaller #0 [ 721.277207][ T6868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 721.287782][ T6868] Call Trace: [ 721.291075][ T6868] dump_stack+0x18f/0x20d [ 721.295494][ T6868] should_fail.cold+0x5/0x14 [ 721.300169][ T6868] should_failslab+0x5/0xf [ 721.304675][ T6868] kmem_cache_alloc_node+0x53/0x3c0 [ 721.310409][ T6868] __alloc_skb+0x71/0x550 [ 721.314736][ T6868] tipc_buf_acquire+0x28/0xf0 [ 721.319404][ T6868] tipc_msg_reverse+0x1ee/0x970 [ 721.324778][ T6868] tipc_sk_respond+0x247/0x540 [ 721.329551][ T6868] ? trace_tipc_sk_rej_msg+0x350/0x350 [ 721.335013][ T6868] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 721.340644][ T6868] ? kmem_cache_free+0x261/0x310 [ 721.345944][ T6868] ? kfree_skbmem+0x166/0x1b0 [ 721.350717][ T6868] __tipc_shutdown+0x9ce/0xeb0 [ 721.355575][ T6868] ? tsk_rej_rx_queue+0x1d0/0x1d0 [ 721.360595][ T6868] ? __sock_release+0x280/0x280 [ 721.365622][ T6868] ? __init_waitqueue_head+0x110/0x110 [ 721.371167][ T6868] ? __local_bh_enable_ip+0x159/0x250 [ 721.376853][ T6868] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 721.384136][ T6868] ? lock_is_held_type+0xb0/0xe0 [ 721.389084][ T6868] ? __sock_release+0x280/0x280 [ 721.394535][ T6868] tipc_release+0x13f/0x1a70 [ 721.399136][ T6868] ? tipc_shutdown+0x640/0x640 [ 721.403894][ T6868] ? down_write+0xdb/0x150 [ 721.408656][ T6868] ? down_write_killable+0x170/0x170 [ 721.414280][ T6868] ? locks_remove_file+0x319/0x580 [ 721.420509][ T6868] ? fsnotify_first_mark+0x1f0/0x1f0 [ 721.426346][ T6868] ? fcntl_setlk+0xf60/0xf60 [ 721.430940][ T6868] ? __sock_release+0x280/0x280 [ 721.436216][ T6868] __sock_release+0xcd/0x280 [ 721.441042][ T6868] sock_close+0x18/0x20 [ 721.445279][ T6868] __fput+0x33c/0x880 [ 721.449263][ T6868] task_work_run+0xdd/0x190 [ 721.453771][ T6868] __prepare_exit_to_usermode+0x1e9/0x1f0 [ 721.459486][ T6868] do_syscall_64+0x6c/0xe0 [ 721.463898][ T6868] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 721.469793][ T6868] RIP: 0033:0x446df9 [ 721.473679][ T6868] Code: Bad RIP value. [ 721.477737][ T6868] RSP: 002b:00007f4766792cb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000021 [ 721.486143][ T6868] RAX: 0000000000000005 RBX: 00007f4766792cc0 RCX: 0000000000446df9 [ 721.494207][ T6868] RDX: 0000000000000001 RSI: 0000000000000005 RDI: 0000000000000003 [ 721.503210][ T6868] RBP: 0000000000000006 R08: 0000000000000001 R09: 0000000000000031 [ 721.511173][ T6868] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc5c [ 721.519135][ T6868] R13: 00007fff2c969dbf R14: 00007f47667939c0 R15: 20c49ba5e353f7cf [ 825.827317][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 825.834280][ C1] rcu: 1-...!: (1 GPs behind) idle=2c6/1/0x4000000000000000 softirq=8594/8600 fqs=12 [ 825.844484][ C1] (t=10501 jiffies g=7945 q=771) [ 825.850111][ C1] rcu: rcu_preempt kthread starved for 10429 jiffies! g7945 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 825.862076][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 825.872033][ C1] rcu: RCU grace-period kthread stack dump: [ 825.877997][ C1] rcu_preempt I29120 10 2 0x00004000 [ 825.884329][ C1] Call Trace: [ 825.887711][ C1] __schedule+0x8e1/0x1eb0 [ 825.892416][ C1] ? io_schedule_timeout+0x140/0x140 [ 825.897702][ C1] ? enqueue_timer+0x420/0x420 [ 825.902472][ C1] ? lock_downgrade+0x820/0x820 [ 825.907361][ C1] schedule+0xd0/0x2a0 [ 825.911786][ C1] schedule_timeout+0x148/0x250 [ 825.916643][ C1] ? usleep_range+0x170/0x170 [ 825.921342][ C1] ? lockdep_hardirqs_on+0x6a/0xe0 [ 825.926544][ C1] ? __next_timer_interrupt+0x190/0x190 [ 825.932088][ C1] ? prepare_to_swait_exclusive+0x2d0/0x2d0 [ 825.938080][ C1] rcu_gp_kthread+0xae5/0x1b50 [ 825.942849][ C1] ? call_rcu+0x7e0/0x7e0 [ 825.947181][ C1] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 825.952991][ C1] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 825.958970][ C1] ? lockdep_hardirqs_on+0x6a/0xe0 [ 825.964081][ C1] ? __kthread_parkme+0x13f/0x1e0 [ 825.969102][ C1] ? call_rcu+0x7e0/0x7e0 [ 825.973459][ C1] kthread+0x3b5/0x4a0 [ 825.977524][ C1] ? __kthread_bind_mask+0xc0/0xc0 [ 825.982719][ C1] ? __kthread_bind_mask+0xc0/0xc0 [ 825.987828][ C1] ret_from_fork+0x1f/0x30 [ 825.993152][ C1] NMI backtrace for cpu 1 [ 825.997477][ C1] CPU: 1 PID: 6855 Comm: syz-executor167 Not tainted 5.8.0-rc3-syzkaller #0 [ 826.006134][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 826.016268][ C1] Call Trace: [ 826.019559][ C1] [ 826.022411][ C1] dump_stack+0x18f/0x20d [ 826.026753][ C1] nmi_cpu_backtrace.cold+0x70/0xb1 [ 826.032080][ C1] ? lapic_can_unplug_cpu.cold+0x38/0x38 [ 826.037713][ C1] nmi_trigger_cpumask_backtrace+0x1b3/0x223 [ 826.044656][ C1] rcu_dump_cpu_stacks+0x194/0x1cf [ 826.049859][ C1] rcu_sched_clock_irq.cold+0x5b3/0xccc [ 826.055845][ C1] ? lock_is_held_type+0xb0/0xe0 [ 826.060775][ C1] ? rcutree_dead_cpu+0x10/0x10 [ 826.066671][ C1] ? lockdep_hardirqs_off+0x66/0xa0 [ 826.071860][ C1] ? trace_hardirqs_off+0x27/0x210 [ 826.076969][ C1] update_process_times+0x25/0x60 [ 826.081984][ C1] tick_sched_handle+0x9b/0x180 [ 826.086912][ C1] tick_sched_timer+0x108/0x290 [ 826.091756][ C1] __hrtimer_run_queues+0x1d5/0xfc0 [ 826.096947][ C1] ? can_stop_idle_tick+0x290/0x290 [ 826.102146][ C1] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 826.108119][ C1] ? ktime_get_update_offsets_now+0x1c4/0x250 [ 826.115662][ C1] hrtimer_interrupt+0x32a/0x930 [ 826.120732][ C1] __sysvec_apic_timer_interrupt+0x142/0x5e0 [ 826.126706][ C1] asm_call_on_stack+0xf/0x20 [ 826.131370][ C1] [ 826.134304][ C1] sysvec_apic_timer_interrupt+0xe0/0x120 [ 826.140026][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 826.146357][ C1] RIP: 0010:lock_release+0x481/0x8d0 [ 826.151633][ C1] Code: 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 7f 03 00 00 48 83 3d 2b d7 5a 08 00 0f 84 a9 01 00 00 48 8b 3c 24 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c5 48 c7 45 00 [ 826.171343][ C1] RSP: 0018:ffffc90001776cd0 EFLAGS: 00000282 [ 826.177408][ C1] RAX: 1ffffffff1369c08 RBX: ffff8880972f25c0 RCX: 0000000000000000 [ 826.185372][ C1] RDX: dffffc0000000000 RSI: ffffffff89bc1180 RDI: 0000000000000282 [ 826.193335][ C1] RBP: 1ffff920002eed9c R08: 0000000000000001 R09: ffff8880972f2e88 [ 826.201300][ C1] R10: fffffbfff155cb29 R11: 0000000000000000 R12: 0000000000000003 [ 826.209609][ C1] R13: ffffffff87a707d5 R14: 0000000000000004 R15: ffff8880972f25c0 [ 826.217587][ C1] ? tipc_sk_lookup+0x5e5/0xab0 [ 826.222448][ C1] ? lock_downgrade+0x820/0x820 [ 826.227298][ C1] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 826.233275][ C1] tipc_sk_lookup+0x607/0xab0 [ 826.237959][ C1] ? __tipc_nl_add_sk+0x3d0/0x3d0 [ 826.242970][ C1] ? do_raw_spin_lock+0x120/0x2b0 [ 826.247987][ C1] ? __local_bh_enable_ip+0x159/0x250 [ 826.253438][ C1] ? lockdep_hardirqs_on_prepare+0x1bc/0x590 [ 826.259406][ C1] ? tipc_sk_rcv+0x26d/0x1ec0 [ 826.264076][ C1] ? trace_hardirqs_on+0x5f/0x220 [ 826.269100][ C1] tipc_sk_rcv+0x27a/0x1ec0 [ 826.273599][ C1] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 826.279675][ C1] ? trace_hardirqs_off+0x27/0x210 [ 826.284787][ C1] ? tipc_sk_filter_rcv+0x3250/0x3250 [ 826.290154][ C1] ? lock_acquire+0x1f1/0xad0 [ 826.294829][ C1] ? tipc_node_xmit+0xa0/0xce0 [ 826.299583][ C1] ? find_held_lock+0x2d/0x110 [ 826.304342][ C1] ? tipc_node_xmit+0x1cf/0xce0 [ 826.309192][ C1] ? lock_downgrade+0x820/0x820 [ 826.314094][ C1] ? tipc_sk_filter_rcv+0xafe/0x3250 [ 826.319372][ C1] ? tipc_sk_rcv+0xd1a/0x1ec0 [ 826.324043][ C1] ? tipc_node_xmit+0x2b0/0xce0 [ 826.328890][ C1] ? lockdep_init_map_waits+0x26a/0x890 [ 826.334967][ C1] tipc_node_xmit+0x2b0/0xce0 [ 826.339659][ C1] ? tipc_node_get_linkname+0x1c0/0x1c0 [ 826.345308][ C1] ? mark_lock+0xbc/0x1710 [ 826.350356][ C1] ? mark_held_locks+0x9f/0xe0 [ 826.355140][ C1] tipc_node_xmit_skb+0xd5/0x140 [ 826.360077][ C1] ? kfree_skbmem+0x166/0x1b0 [ 826.364761][ C1] ? tipc_node_xmit+0xce0/0xce0 [ 826.369609][ C1] ? kfree_skbmem+0x166/0x1b0 [ 826.374992][ C1] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 826.380529][ C1] ? trace_tipc_sk_rej_msg+0x2d2/0x350 [ 826.385986][ C1] tipc_sk_rcv+0x1754/0x1ec0 [ 826.390598][ C1] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 826.396579][ C1] ? tipc_sk_filter_rcv+0x3250/0x3250 [ 826.401950][ C1] ? find_held_lock+0x2d/0x110 [ 826.406798][ C1] ? tipc_node_xmit+0x1cf/0xce0 [ 826.411735][ C1] ? lock_downgrade+0x820/0x820 [ 826.416578][ C1] ? mark_lock+0xbc/0x1710 [ 826.420990][ C1] ? lockdep_init_map_waits+0x26a/0x890 [ 826.426544][ C1] tipc_node_xmit+0x2b0/0xce0 [ 826.431221][ C1] ? tipc_node_get_linkname+0x1c0/0x1c0 [ 826.436757][ C1] ? is_dynamic_key+0x1a0/0x1a0 [ 826.442122][ C1] ? mark_lock+0xbc/0x1710 [ 826.446540][ C1] ? __lock_acquire+0x16e3/0x56e0 [ 826.451567][ C1] tipc_sk_push_backlog+0x324/0x790 [ 826.456760][ C1] tipc_sk_filter_rcv+0xafe/0x3250 [ 826.461995][ C1] ? tipc_sk_overlimit2+0x380/0x380 [ 826.467188][ C1] ? lock_acquire+0x1f1/0xad0 [ 826.472820][ C1] ? tipc_sk_rcv+0x364/0x1ec0 [ 826.477494][ C1] ? mark_lock+0xbc/0x1710 [ 826.481910][ C1] ? mark_held_locks+0x9f/0xe0 [ 826.486663][ C1] ? do_raw_spin_lock+0x120/0x2b0 [ 826.491770][ C1] ? __local_bh_enable_ip+0x159/0x250 [ 826.497137][ C1] ? lockdep_hardirqs_on_prepare+0x1bc/0x590 [ 826.503195][ C1] ? tipc_sk_rcv+0x4e2/0x1ec0 [ 826.508198][ C1] ? lock_is_held_type+0xb0/0xe0 [ 826.513145][ C1] tipc_sk_rcv+0xd1a/0x1ec0 [ 826.517739][ C1] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 826.523719][ C1] ? tipc_sk_filter_rcv+0x3250/0x3250 [ 826.529086][ C1] ? lock_acquire+0x1f1/0xad0 [ 826.534132][ C1] ? tipc_node_xmit+0xa0/0xce0 [ 826.539597][ C1] ? find_held_lock+0x2d/0x110 [ 826.544455][ C1] ? tipc_node_xmit+0x1cf/0xce0 [ 826.549410][ C1] ? lock_downgrade+0x820/0x820 [ 826.554259][ C1] ? lockdep_init_map_waits+0x26a/0x890 [ 826.559892][ C1] tipc_node_xmit+0x2b0/0xce0 [ 826.564667][ C1] ? tipc_node_get_linkname+0x1c0/0x1c0 [ 826.570390][ C1] ? tipc_sk_filter_rcv+0x10fa/0x3250 [ 826.575770][ C1] tipc_node_distr_xmit+0x15c/0x3a0 [ 826.581082][ C1] ? tipc_node_xmit_skb+0x140/0x140 [ 826.586302][ C1] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 826.592365][ C1] tipc_sk_backlog_rcv+0x155/0x1c0 [ 826.597471][ C1] ? tipc_sk_mcast_rcv+0x1040/0x1040 [ 826.602760][ C1] ? mark_held_locks+0x9f/0xe0 [ 826.607522][ C1] ? __local_bh_enable_ip+0x159/0x250 [ 826.613424][ C1] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 826.619409][ C1] ? __release_sock+0xd0/0x3a0 [ 826.625290][ C1] ? trace_hardirqs_on+0x5f/0x220 [ 826.630622][ C1] __release_sock+0x134/0x3a0 [ 826.635487][ C1] ? __local_bh_enable_ip+0x159/0x250 [ 826.640878][ C1] release_sock+0x54/0x1b0 [ 826.645309][ C1] tipc_release+0xbb1/0x1a70 [ 826.650009][ C1] ? tipc_shutdown+0x640/0x640 [ 826.654789][ C1] ? down_write+0xdb/0x150 [ 826.659210][ C1] ? down_write_killable+0x170/0x170 [ 826.664688][ C1] ? locks_remove_file+0x319/0x580 [ 826.669912][ C1] ? fsnotify_first_mark+0x1f0/0x1f0 [ 826.675199][ C1] ? fcntl_setlk+0xf60/0xf60 [ 826.679931][ C1] ? __sock_release+0x280/0x280 [ 826.684994][ C1] __sock_release+0xcd/0x280 [ 826.689590][ C1] sock_close+0x18/0x20 [ 826.693927][ C1] __fput+0x33c/0x880 [ 826.697929][ C1] task_work_run+0xdd/0x190 [ 826.702627][ C1] __prepare_exit_to_usermode+0x1e9/0x1f0 [ 826.708356][ C1] do_syscall_64+0x6c/0xe0 [ 826.712810][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 826.718698][ C1] RIP: 0033:0x446df9 [ 826.722578][ C1] Code: Bad RIP value. [ 826.726662][ C1] RSP: 002b:00007f4766792cb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000021 [ 826.735299][ C1] RAX: 0000000000000005 RBX: 00007f4766792cc0 RCX: 0000000000446df9 [ 826.743711][ C1] RDX: 0000000000000001 RSI: 0000000000000005 RDI: 0000000000000003 [ 826.751745][ C1] RBP: 0000000000000006 R08: 0000000000000001 R09: 0000000000000031 [ 826.759729][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc5c [ 826.767717][ C1] R13: 00007fff2c969dbf R14: 00007f47667939c0 R15: 20c49ba5e353f7cf