Warning: Permanently added '10.128.0.247' (ECDSA) to the list of known hosts. syzkaller login: [ 94.008093][ T9584] IPVS: ftp: loaded support on port[0] = 21 [ 94.008099][ T9582] IPVS: ftp: loaded support on port[0] = 21 [ 94.021139][ T9578] IPVS: ftp: loaded support on port[0] = 21 [ 94.027374][ T9586] IPVS: ftp: loaded support on port[0] = 21 [ 94.036127][ T9585] IPVS: ftp: loaded support on port[0] = 21 [ 94.043880][ T9583] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 112.180844][ T3851] ------------[ cut here ]------------ [ 112.186355][ T3851] lockdep bfs error:-1 [ 112.190502][ T3851] WARNING: CPU: 1 PID: 3851 at kernel/locking/lockdep.c:1695 print_bfs_bug+0x53/0x70 [ 112.199945][ T3851] Kernel panic - not syncing: panic_on_warn set ... [ 112.206514][ T3851] CPU: 1 PID: 3851 Comm: kworker/1:10 Not tainted 5.6.0-rc6-syzkaller #0 [ 112.214897][ T3851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 112.224952][ T3851] Workqueue: events_power_efficient reg_check_chans_work [ 112.231965][ T3851] Call Trace: [ 112.235246][ T3851] dump_stack+0x188/0x20d [ 112.239557][ T3851] ? trace_event_raw_event_lock+0x220/0x250 [ 112.245444][ T3851] panic+0x2e3/0x75c [ 112.249338][ T3851] ? add_taint.cold+0x16/0x16 [ 112.254005][ T3851] ? __probe_kernel_read+0x188/0x1d0 [ 112.259271][ T3851] ? __warn.cold+0x14/0x35 [ 112.263671][ T3851] ? __warn+0xd5/0x1c8 [ 112.267722][ T3851] ? print_bfs_bug+0x53/0x70 [ 112.272301][ T3851] __warn.cold+0x2f/0x35 [ 112.276524][ T3851] ? print_bfs_bug+0x53/0x70 [ 112.281108][ T3851] report_bug+0x27b/0x2f0 [ 112.285426][ T3851] do_error_trap+0x12b/0x220 [ 112.289998][ T3851] ? print_bfs_bug+0x53/0x70 [ 112.294689][ T3851] do_invalid_op+0x32/0x40 [ 112.299093][ T3851] ? print_bfs_bug+0x53/0x70 [ 112.303673][ T3851] invalid_op+0x23/0x30 [ 112.307811][ T3851] RIP: 0010:print_bfs_bug+0x53/0x70 [ 112.312993][ T3851] Code: da d4 1b 08 00 74 28 48 c7 c7 00 c1 39 8c e8 d4 45 01 00 66 90 85 db 75 03 5b 5d c3 89 ee 48 c7 c7 a0 72 0b 88 e8 95 54 ec ff <0f> 0b 5b 5d c3 0f 0b 48 c7 c7 38 b6 73 89 e8 5a 01 57 00 eb be 0f [ 112.332585][ T3851] RSP: 0018:ffffc900064377d8 EFLAGS: 00010086 [ 112.338634][ T3851] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 112.346603][ T3851] RDX: 0000000000000000 RSI: ffffffff815c06c1 RDI: fffff52000c86eed [ 112.354582][ T3851] RBP: 00000000ffffffff R08: ffff88809af4a0c0 R09: ffffed1015ce45c9 [ 112.362561][ T3851] R10: ffffed1015ce45c8 R11: ffff8880ae722e43 R12: ffff88809af4a9a8 [ 112.370524][ T3851] R13: ffff88809af4a980 R14: ffffc90006437850 R15: 0000000000001616 [ 112.378494][ T3851] ? vprintk_func+0x81/0x17e [ 112.383072][ T3851] ? print_bfs_bug+0x53/0x70 [ 112.387643][ T3851] check_path+0x36/0x40 [ 112.391780][ T3851] check_noncircular+0x16d/0x3e0 [ 112.396700][ T3851] ? deref_stack_reg+0xaa/0xe0 [ 112.401442][ T3851] ? print_circular_bug.isra.0+0x220/0x220 [ 112.407239][ T3851] ? unwind_next_frame+0xdba/0x19d0 [ 112.412416][ T3851] ? unwind_next_frame+0xdba/0x19d0 [ 112.417605][ T3851] ? alloc_list_entry+0xb0/0xb0 [ 112.422431][ T3851] ? mark_lock+0xbc/0x1220 [ 112.426846][ T3851] ? deref_stack_reg+0xaa/0xe0 [ 112.431589][ T3851] ? find_first_zero_bit+0x94/0xb0 [ 112.436702][ T3851] __lock_acquire+0x201b/0x3ca0 [ 112.441541][ T3851] ? mark_held_locks+0xe0/0xe0 [ 112.446290][ T3851] ? arch_stack_walk+0x74/0xd0 [ 112.451050][ T3851] lock_acquire+0x197/0x420 [ 112.455571][ T3851] ? reg_check_chans_work+0x71/0xe50 [ 112.460843][ T3851] __mutex_lock+0x156/0x13c0 [ 112.465420][ T3851] ? reg_check_chans_work+0x71/0xe50 [ 112.470686][ T3851] ? stack_trace_save+0x8c/0xc0 [ 112.475517][ T3851] ? reg_check_chans_work+0x71/0xe50 [ 112.480784][ T3851] ? mutex_trylock+0x2c0/0x2c0 [ 112.485525][ T3851] ? save_trace+0x5da/0x890 [ 112.490007][ T3851] ? find_first_zero_bit+0x94/0xb0 [ 112.495096][ T3851] ? __lock_acquire+0x2413/0x3ca0 [ 112.500101][ T3851] ? reg_check_chans_work+0x71/0xe50 [ 112.505364][ T3851] ? rtnl_lock+0x5/0x20 [ 112.509499][ T3851] reg_check_chans_work+0x71/0xe50 [ 112.514600][ T3851] ? regulatory_hint+0x260/0x260 [ 112.519517][ T3851] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 112.525039][ T3851] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 112.531030][ T3851] process_one_work+0x94b/0x1690 [ 112.535965][ T3851] ? pwq_dec_nr_in_flight+0x310/0x310 [ 112.541316][ T3851] ? do_raw_spin_lock+0x129/0x2e0 [ 112.546350][ T3851] worker_thread+0x96/0xe20 [ 112.550838][ T3851] ? process_one_work+0x1690/0x1690 [ 112.556149][ T3851] kthread+0x357/0x430 [ 112.560209][ T3851] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 112.565919][ T3851] ret_from_fork+0x24/0x30 [ 112.571524][ T3851] Kernel Offset: disabled [ 112.575856][ T3851] Rebooting in 86400 seconds..