Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '[localhost]:45745' (ECDSA) to the list of known hosts. syzkaller login: [ 172.502969][ T9264] IPVS: ftp: loaded support on port[0] = 21 [ 172.502977][ T9267] IPVS: ftp: loaded support on port[0] = 21 [ 172.502986][ T9265] IPVS: ftp: loaded support on port[0] = 21 [ 172.502995][ T9266] 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 [ 212.263649][ T2941] ------------[ cut here ]------------ [ 212.297540][ T2941] lockdep bfs error:-1 [ 212.319484][ T2941] WARNING: CPU: 0 PID: 2941 at kernel/locking/lockdep.c:1714 print_bfs_bug+0x130/0x1e0 [ 212.365089][ T2941] Kernel panic - not syncing: panic_on_warn set ... [ 212.372707][ T2941] CPU: 0 PID: 2941 Comm: kworker/0:2 Not tainted 5.7.0-syzkaller #0 [ 212.438428][ T2941] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 212.438428][ T2941] Workqueue: events_power_efficient reg_check_chans_work [ 212.438428][ T2941] Call Trace: [ 212.614680][ T2941] dump_stack+0x188/0x20d [ 212.617958][ T2941] ? print_bfs_bug+0x110/0x1e0 [ 212.617958][ T2941] panic+0x2e3/0x75c [ 212.687078][ T2941] ? add_taint.cold+0x16/0x16 [ 212.687078][ T2941] ? __probe_kernel_read+0x188/0x1d0 [ 212.767352][ T2941] ? __warn.cold+0x14/0x35 [ 212.767352][ T2941] ? __warn+0xd5/0x1c8 [ 212.767352][ T2941] ? print_bfs_bug+0x130/0x1e0 [ 212.767352][ T2941] __warn.cold+0x2f/0x35 [ 212.877002][ T2941] ? print_bfs_bug+0x130/0x1e0 [ 212.907092][ T2941] report_bug+0x27b/0x2f0 [ 212.927112][ T2941] do_error_trap+0x12b/0x220 [ 212.937806][ T2941] ? print_bfs_bug+0x130/0x1e0 [ 212.993877][ T2941] do_invalid_op+0x32/0x40 [ 213.007029][ T2941] ? print_bfs_bug+0x130/0x1e0 [ 213.036985][ T2941] invalid_op+0x23/0x30 [ 213.036985][ T2941] RIP: 0010:print_bfs_bug+0x130/0x1e0 [ 213.068156][ T2941] Code: 3b 08 00 74 2c 48 c7 c7 80 2f 68 8c e8 f9 88 01 00 66 90 85 db 75 05 5b 5d 41 5c c3 89 ee 48 c7 c7 60 a5 2b 88 e8 a8 c9 eb ff <0f> 0b 5b 5d 41 5c c3 0f 0b e8 42 64 82 06 85 c0 74 d7 48 c7 c0 90 [ 213.156911][ T2941] RSP: 0018:ffffc9000c6cf6e0 EFLAGS: 00010086 [ 213.156911][ T2941] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 213.156911][ T2941] RDX: 0000000000000000 RSI: ffffffff815d88a7 RDI: fffff520018d9ece [ 213.241206][ T2941] RBP: 00000000ffffffff R08: ffff8880259fd900 R09: ffffed10059c45f2 [ 213.246822][ T2941] R10: ffff88802ce22f8b R11: ffffed10059c45f1 R12: ffff8880259fd900 [ 213.246822][ T2941] R13: ffff8880259fe1f8 R14: ffffc9000c6cf760 R15: 0000000000001669 [ 213.246822][ T2941] ? vprintk_func+0x97/0x1a6 [ 213.316852][ T2941] check_path+0x36/0x40 [ 213.316852][ T2941] check_noncircular+0x16d/0x3e0 [ 213.316852][ T2941] ? print_circular_bug.isra.0+0x3a0/0x3a0 [ 213.316852][ T2941] ? mark_lock+0x11f/0xdd0 [ 213.316852][ T2941] ? mark_lock+0x11f/0xdd0 [ 213.386913][ T2941] ? arch_stack_walk+0x5e/0xf0 [ 213.386913][ T2941] ? deref_stack_reg+0xaa/0xe0 [ 213.386913][ T2941] __lock_acquire+0x2a9a/0x48a0 [ 213.386913][ T2941] ? deref_stack_reg+0xe0/0xe0 [ 213.386913][ T2941] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 213.386913][ T2941] ? profile_setup.cold+0xc1/0xc1 [ 213.386913][ T2941] lock_acquire+0x1f2/0x8f0 [ 213.386913][ T2941] ? reg_check_chans_work+0x71/0xe50 [ 213.386913][ T2941] ? lock_release+0x800/0x800 [ 213.386913][ T2941] ? stack_trace_save+0x8c/0xc0 [ 213.386913][ T2941] __mutex_lock+0x156/0x13c0 [ 213.386913][ T2941] ? reg_check_chans_work+0x71/0xe50 [ 213.386913][ T2941] ? reg_check_chans_work+0x71/0xe50 [ 213.386913][ T2941] ? __lock_acquire+0x2e69/0x48a0 [ 213.386913][ T2941] ? mutex_trylock+0x2c0/0x2c0 [ 213.386913][ T2941] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 213.386913][ T2941] ? lock_downgrade+0x840/0x840 [ 213.386913][ T2941] ? reg_check_chans_work+0x71/0xe50 [ 213.386913][ T2941] ? rtnl_lock+0x5/0x20 [ 213.597012][ T2941] reg_check_chans_work+0x71/0xe50 [ 213.597012][ T2941] ? process_one_work+0x878/0x16a0 [ 213.640380][ T2941] ? debug_smp_processor_id+0x2f/0x185 [ 213.640380][ T2941] ? regulatory_hint+0x260/0x260 [ 213.640380][ T2941] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 213.640380][ T2941] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 213.640380][ T2941] process_one_work+0x965/0x16a0 [ 213.640380][ T2941] ? lock_release+0x800/0x800 [ 213.640380][ T2941] ? pwq_dec_nr_in_flight+0x310/0x310 [ 213.640380][ T2941] ? rwlock_bug.part.0+0x90/0x90 [ 213.640380][ T2941] worker_thread+0x96/0xe20 [ 213.640380][ T2941] ? process_one_work+0x16a0/0x16a0 [ 213.640380][ T2941] kthread+0x388/0x470 [ 213.640380][ T2941] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 213.640380][ T2941] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 213.640380][ T2941] ret_from_fork+0x24/0x30 [ 213.640380][ T2941] Kernel Offset: disabled [ 213.640380][ T2941] Rebooting in 86400 seconds..