[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.210' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 72.962050][ T6858] IPVS: ftp: loaded support on port[0] = 21 executing program [ 73.115970][ T6879] IPVS: ftp: loaded support on port[0] = 21 [ 73.153283][ T234] tipc: TX() has been purged, node left! executing program [ 73.276310][ T6900] IPVS: ftp: loaded support on port[0] = 21 executing program [ 73.429731][ T6921] IPVS: ftp: loaded support on port[0] = 21 executing program [ 73.582868][ T6942] IPVS: ftp: loaded support on port[0] = 21 executing program [ 73.735583][ T6963] IPVS: ftp: loaded support on port[0] = 21 executing program [ 73.986138][ T6984] IPVS: ftp: loaded support on port[0] = 21 executing program [ 74.243543][ T7005] IPVS: ftp: loaded support on port[0] = 21 executing program [ 74.504688][ T7026] IPVS: ftp: loaded support on port[0] = 21 executing program [ 74.767187][ T7047] IPVS: ftp: loaded support on port[0] = 21 [ 74.808178][ T234] rxrpc: Assertion failed [ 74.814212][ T234] ------------[ cut here ]------------ [ 74.819682][ T234] kernel BUG at net/rxrpc/conn_object.c:481! [ 74.829626][ T234] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 74.835711][ T234] CPU: 1 PID: 234 Comm: kworker/u4:5 Not tainted 5.9.0-rc3-syzkaller #0 [ 74.844021][ T234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.854074][ T234] Workqueue: netns cleanup_net [ 74.858840][ T234] RIP: 0010:rxrpc_destroy_all_connections.cold+0x11/0x13 [ 74.865856][ T234] Code: c0 48 c7 c1 00 b0 14 89 48 89 f2 48 c7 c7 80 ac 14 89 e8 04 4d 0c fa 0f 0b e8 be 15 23 fa 48 c7 c7 80 af 14 89 e8 f1 4c 0c fa <0f> 0b 41 57 41 56 41 55 41 54 55 53 48 89 f3 48 83 ec 20 48 89 3c [ 74.885459][ T234] RSP: 0018:ffffc90000f57b18 EFLAGS: 00010282 [ 74.891520][ T234] RAX: 0000000000000017 RBX: ffff8880945a8000 RCX: 0000000000000000 [ 74.899483][ T234] RDX: ffff8880a85ca200 RSI: ffffffff815dbd97 RDI: fffff520001eaf55 [ 74.907449][ T234] RBP: ffff8880945a8064 R08: 0000000000000017 R09: ffff8880ae731927 [ 74.915413][ T234] R10: 0000000000000000 R11: 0000000034333254 R12: ffff8880945a8068 [ 74.923377][ T234] R13: ffff8880945a8078 R14: ffff8880945a8078 R15: ffff8880945a7eb8 [ 74.931343][ T234] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 74.936173][ T7068] IPVS: ftp: loaded support on port[0] = 21 [ 74.940261][ T234] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.940269][ T234] CR2: 00007fdbae898020 CR3: 00000000963ae000 CR4: 00000000001506e0 [ 74.940282][ T234] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.968776][ T234] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.976739][ T234] Call Trace: [ 74.980035][ T234] ? try_to_grab_pending.part.0+0x770/0x770 [ 74.985928][ T234] ? rxrpc_service_connection_reaper+0x9e0/0x9e0 [ 74.992250][ T234] ? try_to_del_timer_sync+0xbf/0x110 [ 74.997616][ T234] ? del_timer+0x110/0x110 [ 75.002053][ T234] ? del_timer_sync+0x1e6/0x250 [ 75.006895][ T234] ? check_preemption_disabled+0x50/0x130 [ 75.012606][ T234] ? del_timer_sync+0x1e6/0x250 [ 75.017450][ T234] rxrpc_exit_net+0x1a4/0x2e0 [ 75.022120][ T234] ? rxrpc_init_net+0xd90/0xd90 [ 75.026959][ T234] ops_exit_list+0xb0/0x160 [ 75.031454][ T234] cleanup_net+0x4ea/0xa00 [ 75.035864][ T234] ? ops_free_list.part.0+0x3d0/0x3d0 [ 75.041226][ T234] ? lock_is_held_type+0xbb/0xf0 [ 75.046170][ T234] process_one_work+0x94c/0x1670 [ 75.051101][ T234] ? lock_release+0x8f0/0x8f0 executing program executing program [ 75.055769][ T234] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 75.061131][ T234] ? rwlock_bug.part.0+0x90/0x90 [ 75.066069][ T234] ? lockdep_hardirqs_off+0x96/0xd0 [ 75.071262][ T234] worker_thread+0x64c/0x1120 [ 75.075933][ T234] ? __kthread_parkme+0x13f/0x1e0 [ 75.080957][ T234] ? process_one_work+0x1670/0x1670 [ 75.086149][ T234] kthread+0x3b5/0x4a0 [ 75.088683][ T7089] IPVS: ftp: loaded support on port[0] = 21 [ 75.090213][ T234] ? __kthread_bind_mask+0xc0/0xc0 [ 75.090232][ T234] ret_from_fork+0x1f/0x30 [ 75.105577][ T234] Modules linked in: [ 75.124361][ T234] ---[ end trace b82f4cc98146655f ]--- [ 75.129846][ T234] RIP: 0010:rxrpc_destroy_all_connections.cold+0x11/0x13 [ 75.138499][ T234] Code: c0 48 c7 c1 00 b0 14 89 48 89 f2 48 c7 c7 80 ac 14 89 e8 04 4d 0c fa 0f 0b e8 be 15 23 fa 48 c7 c7 80 af 14 89 e8 f1 4c 0c fa <0f> 0b 41 57 41 56 41 55 41 54 55 53 48 89 f3 48 83 ec 20 48 89 3c [ 75.159609][ T234] RSP: 0018:ffffc90000f57b18 EFLAGS: 00010282 [ 75.166167][ T234] RAX: 0000000000000017 RBX: ffff8880945a8000 RCX: 0000000000000000 [ 75.174541][ T234] RDX: ffff8880a85ca200 RSI: ffffffff815dbd97 RDI: fffff520001eaf55 [ 75.182928][ T234] RBP: ffff8880945a8064 R08: 0000000000000017 R09: ffff8880ae731927 [ 75.190900][ T234] R10: 0000000000000000 R11: 0000000034333254 R12: ffff8880945a8068 [ 75.199588][ T234] R13: ffff8880945a8078 R14: ffff8880945a8078 R15: ffff8880945a7eb8 [ 75.208321][ T234] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 75.217717][ T234] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 executing program [ 75.224690][ T234] CR2: 00007fdbae89e000 CR3: 0000000093fd8000 CR4: 00000000001506e0 [ 75.233038][ T234] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.241007][ T234] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.248591][ T7110] IPVS: ftp: loaded support on port[0] = 21 [ 75.250225][ T234] Kernel panic - not syncing: Fatal exception [ 75.262114][ T234] Kernel Offset: disabled [ 75.266428][ T234] Rebooting in 86400 seconds..