[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Starting mcstransd: [ 10.652014] random: sshd: uninitialized urandom read (32 bytes read) [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 26.411035] random: crng init done Warning: Permanently added '10.128.10.1' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 34.374356] kasan: CONFIG_KASAN_INLINE enabled [ 34.378947] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.386387] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 34.392608] Modules linked in: [ 34.395905] CPU: 0 PID: 64 Comm: kworker/u4:1 Not tainted 4.9.140+ #22 [ 34.402553] Workqueue: netns cleanup_net [ 34.406712] task: ffff8801d786af80 task.stack: ffff8801d79a8000 [ 34.412740] RIP: 0010:[] [] addrconf_rt_table+0x127/0x290 [ 34.421591] RSP: 0018:ffff8801d79af510 EFLAGS: 00010206 [ 34.427015] RAX: dffffc0000000000 RBX: 0000000000000200 RCX: 0000000000000004 [ 34.434263] RDX: 0000000000000056 RSI: 0000000000000004 RDI: 00000000000002b0 [ 34.441508] RBP: ffff8801d79af540 R08: ffff8801d786b830 R09: 0000000000000001 [ 34.448752] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 [ 34.455997] R13: 00000000000000fe R14: ffff8801d965b300 R15: ffff8801ceba9a90 [ 34.463247] FS: 0000000000000000(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000 [ 34.471453] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.477408] CR2: 00000000fff8cfdc CR3: 00000001d2a01000 CR4: 00000000001606b0 [ 34.484659] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.491903] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.499213] Stack: [ 34.501355] ffffffff826bcee0 ffff8801d965b300 0000000000000000 ffff8801cdc51e80 [ 34.509360] ffff8801ce9cb600 ffff8801ceba9a90 ffff8801d79af588 ffffffff826bd8f3 [ 34.517356] 00000000ce9cb4b8 ffff880100000080 ffff8801ceba9900 ffff8801ceba9a90 [ 34.525357] Call Trace: [ 34.527922] [] ? addrconf_leave_solict+0x90/0x90 [ 34.534304] [] addrconf_get_prefix_route+0x33/0x270 [ 34.540946] [] __ipv6_ifa_notify+0x5d8/0x790 [ 34.546981] [] addrconf_ifdown+0xaae/0x1420 [ 34.552928] [] ? add_addr+0x180/0x180 [ 34.558355] [] addrconf_notify+0x8ee/0x2140 [ 34.564302] [] ? inet6_ifinfo_notify+0x140/0x140 [ 34.570682] [] notifier_call_chain+0xb4/0x1d0 [ 34.576799] [] raw_notifier_call_chain+0x2d/0x40 [ 34.583184] [] call_netdevice_notifiers_info+0x55/0x70 [ 34.590083] [] rollback_registered_many+0x6e5/0xb50 [ 34.596782] [] ? free_netdev+0x300/0x300 [ 34.602476] [] ? mark_held_locks+0xc7/0x130 [ 34.608432] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 34.615335] [] unregister_netdevice_many+0x48/0x220 [ 34.621989] [] default_device_exit_batch+0x33f/0x3f0 [ 34.628821] [] ? unregister_netdevice_many+0x220/0x220 [ 34.636028] [] ? rtnl_unlock+0xe/0x10 [ 34.641620] [] ? default_device_exit+0x1c4/0x260 [ 34.648098] [] ? prepare_to_wait_event+0x8c0/0x8c0 [ 34.654836] [] ? unregister_netdevice_many+0x220/0x220 [ 34.661750] [] ? dev_change_net_namespace+0xb80/0xb80 [ 34.668570] [] ops_exit_list.isra.0+0x105/0x160 [ 34.674867] [] cleanup_net+0x3f2/0x8b0 [ 34.680382] [] ? net_drop_ns+0x80/0x80 [ 34.685905] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 34.692635] [] ? debug_object_deactivate+0x214/0x340 [ 34.699476] [] ? check_preemption_disabled+0x3b/0x200 [ 34.707263] [] process_one_work+0x831/0x15f0 [ 34.713426] [] ? process_one_work+0x774/0x15f0 [ 34.719638] [] ? cancel_delayed_work_sync+0x20/0x20 [ 34.726279] [] worker_thread+0xd6/0x1140 [ 34.731967] [] ? ___preempt_schedule+0x16/0x18 [ 34.738178] [] kthread+0x26d/0x300 [ 34.743345] [] ? process_one_work+0x15f0/0x15f0 [ 34.749736] [] ? kthread_park+0xa0/0xa0 [ 34.755339] [] ? __switch_to_asm+0x34/0x70 [ 34.761447] [] ? kthread_park+0xa0/0xa0 [ 34.767265] [] ? kthread_park+0xa0/0xa0 [ 34.772973] [] ret_from_fork+0x5c/0x70 [ 34.778483] Code: 82 be 01 00 00 00 48 c7 c7 60 c3 0c 83 e8 92 fb b4 fe 49 8d bc 24 b0 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 34 01 00 00 45 8b bc 24 b0 [ 34.805986] RIP [] addrconf_rt_table+0x127/0x290 [ 34.812489] RSP [ 34.816199] ---[ end trace 924d475ae734eeeb ]--- [ 34.820955] Kernel panic - not syncing: Fatal exception [ 34.826626] Kernel Offset: disabled [ 34.830234] Rebooting in 86400 seconds..