[ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.96' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.090202] IPVS: ftp: loaded support on port[0] = 21 executing program [ 27.120002] IPVS: ftp: loaded support on port[0] = 21 executing program [ 27.154479] IPVS: ftp: loaded support on port[0] = 21 executing program [ 27.189463] IPVS: ftp: loaded support on port[0] = 21 executing program [ 27.224220] IPVS: ftp: loaded support on port[0] = 21 executing program [ 27.262642] IPVS: ftp: loaded support on port[0] = 21 [ 28.054612] rxrpc: AF_RXRPC: Leaked local ffff8880b2a236c0 {1} [ 28.060994] ------------[ cut here ]------------ [ 28.065783] kernel BUG at net/rxrpc/local_object.c:408! [ 28.072011] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 28.077356] Modules linked in: [ 28.080527] CPU: 1 PID: 22 Comm: kworker/u4:1 Not tainted 4.14.232-syzkaller #0 [ 28.087946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.097273] Workqueue: netns cleanup_net [ 28.101305] task: ffff8880b55ec5c0 task.stack: ffff8880b55f8000 [ 28.107377] RIP: 0010:rxrpc_destroy_all_locals+0xe6/0x100 [ 28.112883] RSP: 0018:ffff8880b55ffc28 EFLAGS: 00010286 [ 28.118221] RAX: dffffc0000000000 RBX: ffff8880a1ee88c0 RCX: fffffbfff17d77a8 [ 28.125460] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000286 [ 28.132702] RBP: ffff8880a1ee88e0 R08: ffff8880b55ec5c0 R09: dffffc0000000000 [ 28.139942] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a1ee88e0 [ 28.147183] R13: ffff8880a1ee88f0 R14: dffffc0000000000 R15: fffffbfff13c2bb7 [ 28.154425] FS: 0000000000000000(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 28.162622] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.168473] CR2: 00007fa994be6000 CR3: 00000000a1c5b000 CR4: 00000000001406e0 [ 28.175813] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.183155] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.190395] Call Trace: [ 28.192955] rxrpc_exit_net+0x158/0x260 [ 28.196914] ? rxrpc_destroy_all_locals+0x100/0x100 [ 28.201901] ops_exit_list+0xa5/0x150 [ 28.205673] cleanup_net+0x3b3/0x840 [ 28.209357] ? net_drop_ns+0x70/0x70 [ 28.213055] ? lock_acquire+0x170/0x3f0 [ 28.217001] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.222422] process_one_work+0x793/0x14a0 [ 28.226628] ? work_busy+0x320/0x320 [ 28.230310] ? worker_thread+0x158/0xff0 [ 28.234359] ? _raw_spin_unlock_irq+0x24/0x80 [ 28.238823] worker_thread+0x5cc/0xff0 [ 28.242683] ? rescuer_thread+0xc80/0xc80 [ 28.246800] kthread+0x30d/0x420 [ 28.250134] ? kthread_create_on_node+0xd0/0xd0 [ 28.254772] ret_from_fork+0x24/0x30 [ 28.258454] Code: 00 00 00 00 00 fc ff df 48 83 eb 20 e8 b4 71 d7 fa 4c 8d 63 20 4c 39 e5 0f 85 4d 81 a0 00 e8 a2 71 d7 fa 4c 89 ef e8 1a 4a a4 00 <0f> 0b 48 89 ef e8 c0 16 01 fb eb c0 90 90 90 90 90 90 90 90 90 [ 28.277506] RIP: rxrpc_destroy_all_locals+0xe6/0x100 RSP: ffff8880b55ffc28 [ 28.290472] ---[ end trace a306ab5440c7ee4a ]--- [ 28.295348] Kernel panic - not syncing: Fatal exception [ 28.301407] Kernel Offset: disabled [ 28.305029] Rebooting in 86400 seconds..