INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.55' (ECDSA) to the list of known hosts. 2018/04/11 05:40:00 parsed 1 programs 2018/04/11 05:40:00 executed programs: 0 syzkaller login: [ 29.983127] IPVS: ftp: loaded support on port[0] = 21 [ 30.027814] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.027858] IPVS: stopping backup sync thread 4499 ... [ 30.052272] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.055675] IPVS: stopping backup sync thread 4504 ... [ 30.076884] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.079320] IPVS: stopping backup sync thread 4509 ... [ 30.101097] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.103961] IPVS: stopping backup sync thread 4514 ... [ 30.125722] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.130623] IPVS: stopping backup sync thread 4520 ... [ 30.150567] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.153625] IPVS: stopping backup sync thread 4525 ... [ 30.175544] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.175569] IPVS: stopping backup sync thread 4530 ... [ 30.200903] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.204092] IPVS: stopping backup sync thread 4535 ... [ 30.226400] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.227941] IPVS: stopping backup sync thread 4540 ... [ 30.251606] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.254059] IPVS: stopping backup sync thread 4545 ... [ 30.276804] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.278390] IPVS: stopping backup sync thread 4550 ... [ 30.300685] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.303976] IPVS: stopping backup sync thread 4555 ... [ 30.325344] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.328644] IPVS: stopping backup sync thread 4560 ... [ 30.349855] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.353271] IPVS: stopping backup sync thread 4565 ... [ 30.374597] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.376307] IPVS: stopping backup sync thread 4570 ... [ 30.398681] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.402065] IPVS: stopping backup sync thread 4575 ... [ 30.425421] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.427118] IPVS: stopping backup sync thread 4580 ... [ 30.449536] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.452776] IPVS: stopping backup sync thread 4585 ... [ 30.473897] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.478182] IPVS: stopping backup sync thread 4590 ... [ 30.499467] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.502465] IPVS: stopping backup sync thread 4595 ... [ 30.527082] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.527689] IPVS: stopping backup sync thread 4600 ... [ 30.553412] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.558288] IPVS: stopping backup sync thread 4605 ... [ 30.578348] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.581767] IPVS: stopping backup sync thread 4610 ... [ 30.603580] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.606361] IPVS: stopping backup sync thread 4615 ... [ 30.627349] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.630596] IPVS: stopping backup sync thread 4620 ... [ 30.651906] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.655211] IPVS: stopping backup sync thread 4625 ... [ 30.677069] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.679727] IPVS: stopping backup sync thread 4630 ... [ 30.702091] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.704983] IPVS: stopping backup sync thread 4635 ... [ 30.728670] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.729176] IPVS: stopping backup sync thread 4640 ... [ 30.755524] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.756979] IPVS: stopping backup sync thread 4645 ... [ 30.779708] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.779859] IPVS: stopping backup sync thread 4650 ... [ 30.806125] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.807742] IPVS: stopping backup sync thread 4655 ... [ 30.829678] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.832871] IPVS: stopping backup sync thread 4660 ... [ 30.856154] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.858751] IPVS: stopping backup sync thread 4665 ... [ 30.879701] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.883131] IPVS: stopping backup sync thread 4670 ... [ 30.904730] IPVS: stopping backup sync thread 4675 ... [ 30.904734] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.929703] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.931403] IPVS: stopping backup sync thread 4680 ... [ 30.954980] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.958342] IPVS: stopping backup sync thread 4685 ... [ 30.980345] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.983348] IPVS: stopping backup sync thread 4690 ... [ 31.005770] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.007116] IPVS: stopping backup sync thread 4695 ... [ 31.031522] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.031544] IPVS: stopping backup sync thread 4700 ... [ 31.056836] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.059340] IPVS: stopping backup sync thread 4705 ... [ 31.081703] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.084384] IPVS: stopping backup sync thread 4710 ... [ 31.106900] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.109531] IPVS: stopping backup sync thread 4715 ... [ 31.131715] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.135072] IPVS: stopping backup sync thread 4720 ... [ 31.156743] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.158311] IPVS: stopping backup sync thread 4725 ... [ 31.180880] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.186382] IPVS: stopping backup sync thread 4730 ... [ 31.205694] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.208851] IPVS: stopping backup sync thread 4735 ... [ 31.230207] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.233254] IPVS: stopping backup sync thread 4740 ... [ 31.254660] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.254750] IPVS: stopping backup sync thread 4745 ... [ 31.277973] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.280638] IPVS: stopping backup sync thread 4750 ... [ 31.302470] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.304333] IPVS: stopping backup sync thread 4755 ... [ 31.325783] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.328712] IPVS: stopping backup sync thread 4760 ... [ 31.351177] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.352732] IPVS: stopping backup sync thread 4765 ... [ 31.376284] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.378746] IPVS: stopping backup sync thread 4770 ... [ 31.399782] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.402896] IPVS: stopping backup sync thread 4775 ... [ 31.424518] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.427336] IPVS: stopping backup sync thread 4780 ... [ 31.447192] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.451952] IPVS: stopping backup sync thread 4785 ... [ 31.469618] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.478172] IPVS: stopping backup sync thread 4790 ... [ 31.494239] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.497238] IPVS: stopping backup sync thread 4795 ... [ 31.517788] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.517887] IPVS: stopping backup sync thread 4800 ... [ 31.541404] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.544784] IPVS: stopping backup sync thread 4805 ... [ 31.566090] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.569066] IPVS: stopping backup sync thread 4810 ... [ 31.591415] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.592997] IPVS: stopping backup sync thread 4815 ... [ 31.616236] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.617900] IPVS: stopping backup sync thread 4820 ... [ 31.641066] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.641087] IPVS: stopping backup sync thread 4825 ... [ 31.670156] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.672718] IPVS: stopping backup sync thread 4830 ... [ 31.698519] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.701182] IPVS: stopping backup sync thread 4835 ... [ 31.725464] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.728440] IPVS: stopping backup sync thread 4840 ... [ 31.753494] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.757119] IPVS: stopping backup sync thread 4845 ... [ 31.780738] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.783415] IPVS: stopping backup sync thread 4850 ... [ 31.806576] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.810076] IPVS: stopping backup sync thread 4855 ... [ 31.834550] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.834733] IPVS: stopping backup sync thread 4860 ... [ 31.860585] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.860836] IPVS: stopping backup sync thread 4865 ... [ 31.886346] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.894871] IPVS: stopping backup sync thread 4870 ... [ 31.912546] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.916115] IPVS: stopping backup sync thread 4875 ... [ 31.937758] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.942428] IPVS: stopping backup sync thread 4880 ... [ 31.963231] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.963733] IPVS: stopping backup sync thread 4884 ... [ 31.992283] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.992867] IPVS: stopping backup sync thread 4890 ... [ 32.019943] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.023115] IPVS: stopping backup sync thread 4895 ... [ 32.046451] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.049410] IPVS: stopping backup sync thread 4900 ... [ 32.072492] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.076910] IPVS: stopping backup sync thread 4905 ... [ 32.096954] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.097266] IPVS: stopping backup sync thread 4910 ... [ 32.121614] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.122065] IPVS: stopping backup sync thread 4914 ... [ 32.148142] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.152109] IPVS: stopping backup sync thread 4920 ... [ 32.175799] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.178497] IPVS: stopping backup sync thread 4925 ... [ 32.202170] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.204693] IPVS: stopping backup sync thread 4930 ... [ 32.219195] [ 32.220846] ============================================ [ 32.226264] WARNING: possible recursive locking detected [ 32.231684] 4.16.0+ #288 Not tainted [ 32.235372] -------------------------------------------- [ 32.240808] syz-executor0/4929 is trying to acquire lock: [ 32.246317] 00000000ee0fa6d7 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 32.253150] [ 32.253150] but task is already holding lock: [ 32.259103] 00000000ee0fa6d7 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 32.265930] [ 32.265930] other info that might help us debug this: [ 32.272566] Possible unsafe locking scenario: [ 32.272566] [ 32.278594] CPU0 [ 32.281145] ---- [ 32.283704] lock(rtnl_mutex); [ 32.286952] lock(rtnl_mutex); [ 32.290201] [ 32.290201] *** DEADLOCK *** [ 32.290201] [ 32.296227] May be due to missing lock nesting notation [ 32.296227] [ 32.303123] 2 locks held by syz-executor0/4929: [ 32.307764] #0: 00000000ee0fa6d7 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 32.315024] #1: 0000000073e2bf23 (ipvs->sync_mutex){+.+.}, at: do_ip_vs_set_ctl+0x10f8/0x1cc0 [ 32.323764] [ 32.323764] stack backtrace: [ 32.328233] CPU: 0 PID: 4929 Comm: syz-executor0 Not tainted 4.16.0+ #288 [ 32.335137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.344464] Call Trace: [ 32.347030] dump_stack+0x1a7/0x27d [ 32.350630] ? arch_local_irq_restore+0x53/0x53 [ 32.355280] ? print_lock+0xd7/0xdc [ 32.358880] __lock_acquire+0xf03/0x3c30 [ 32.362913] ? select_task_rq_fair+0xcac/0x3620 [ 32.367558] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.372719] ? __enqueue_entity+0x109/0x1e0 [ 32.377018] ? __lock_acquire+0x638/0x3c30 [ 32.381227] ? put_prev_task_fair+0x80/0x80 [ 32.385520] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.390690] ? trace_hardirqs_off+0x10/0x10 [ 32.394988] ? trace_hardirqs_off+0x10/0x10 [ 32.399284] ? trace_hardirqs_off+0x10/0x10 [ 32.403582] ? remove_entity_load_avg+0x1be/0x260 [ 32.408406] ? trace_hardirqs_off+0x10/0x10 [ 32.412710] ? trace_hardirqs_off+0x10/0x10 [ 32.417005] ? trace_hardirqs_off+0x10/0x10 [ 32.421315] ? lock_release+0xa40/0xa40 [ 32.425262] lock_acquire+0x1d5/0x580 [ 32.429035] ? lock_acquire+0x1d5/0x580 [ 32.432983] ? rtnl_lock+0x17/0x20 [ 32.436496] ? lock_release+0xa40/0xa40 [ 32.440448] ? check_same_owner+0x320/0x320 [ 32.444747] ? rcu_note_context_switch+0x710/0x710 [ 32.449646] ? __might_sleep+0x95/0x190 [ 32.453594] ? rtnl_lock+0x17/0x20 [ 32.457106] __mutex_lock+0x16d/0x1810 [ 32.460966] ? rtnl_lock+0x17/0x20 [ 32.464479] ? wait_for_completion_killable+0x63e/0x820 [ 32.469819] ? rtnl_lock+0x17/0x20 [ 32.473334] ? lock_downgrade+0x980/0x980 [ 32.477452] ? lock_release+0xa40/0xa40 [ 32.481399] ? mutex_lock_io_nested+0x16c0/0x16c0 [ 32.486226] ? mark_held_locks+0xaf/0x100 [ 32.490344] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.494810] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.499803] ? trace_hardirqs_on+0xd/0x10 [ 32.503925] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.508394] ? wait_for_completion_killable+0x63e/0x820 [ 32.513734] ? wait_for_completion_interruptible_timeout+0x820/0x820 [ 32.520213] ? lock_downgrade+0x980/0x980 [ 32.524337] ? lock_release+0xa40/0xa40 [ 32.528284] ? kasan_check_read+0x11/0x20 [ 32.532402] ? do_raw_spin_unlock+0x9e/0x310 [ 32.536787] ? do_raw_spin_trylock+0x1a0/0x1a0 [ 32.541340] ? wake_up_q+0xf0/0xf0 [ 32.544852] ? kasan_check_write+0x14/0x20 [ 32.549057] ? do_raw_spin_lock+0xc1/0x230 [ 32.553269] ? __kthread_create_on_node+0x36e/0x480 [ 32.558266] ? kthread_park+0x130/0x130 [ 32.562216] ? mark_held_locks+0xaf/0x100 [ 32.566336] ? qlist_free_all+0x96/0x160 [ 32.570375] ? __lock_is_held+0xb6/0x140 [ 32.574412] mutex_lock_nested+0x16/0x20 [ 32.578447] ? mutex_lock_nested+0x16/0x20 [ 32.582653] rtnl_lock+0x17/0x20 [ 32.586004] ip_mc_drop_socket+0x8f/0x240 [ 32.590129] inet_release+0x4e/0x1c0 [ 32.593816] sock_release+0x8d/0x1e0 [ 32.597510] start_sync_thread+0x2213/0x2b70 [ 32.601890] ? trace_hardirqs_off+0x10/0x10 [ 32.606182] ? ip_vs_process_message_v0+0x870/0x870 [ 32.611170] ? ip_vs_sync_conn+0x3980/0x3980 [ 32.615549] ? find_held_lock+0x35/0x1d0 [ 32.619587] ? trace_hardirqs_off+0x10/0x10 [ 32.623880] ? lock_downgrade+0x980/0x980 [ 32.627997] ? lock_downgrade+0x980/0x980 [ 32.632123] ? kasan_check_read+0x11/0x20 [ 32.636241] ? do_raw_spin_unlock+0x9e/0x310 [ 32.640621] ? find_held_lock+0x35/0x1d0 [ 32.644655] ? __might_fault+0x110/0x1d0 [ 32.648694] ? __release_sock+0x360/0x360 [ 32.652817] ? lock_release+0xa40/0xa40 [ 32.656765] ? check_same_owner+0x320/0x320 [ 32.661064] ? module_unload_free+0x530/0x530 [ 32.665530] ? __might_sleep+0x95/0x190 [ 32.669478] do_ip_vs_set_ctl+0x1139/0x1cc0 [ 32.673788] ? do_ip_vs_set_ctl+0x1139/0x1cc0 [ 32.678259] ? lock_downgrade+0x980/0x980 [ 32.682381] ? ip_vs_genl_dump_services+0x440/0x440 [ 32.687372] ? nf_sockopt_find.constprop.0+0x1a7/0x220 [ 32.692629] ? lock_downgrade+0x980/0x980 [ 32.696750] ? do_futex+0x86f/0x22a0 [ 32.700455] ? __fd_install+0x288/0x740 [ 32.704403] ? trace_hardirqs_off+0x10/0x10 [ 32.708697] ? get_unused_fd_flags+0x190/0x190 [ 32.713254] ? exit_robust_list+0x240/0x240 [ 32.717549] ? kasan_check_write+0x14/0x20 [ 32.721758] ? __mutex_unlock_slowpath+0x181/0x7e0 [ 32.726666] ? wait_for_completion+0x770/0x770 [ 32.731224] ? __fget+0x347/0x580 [ 32.734663] ? module_unload_free+0x530/0x530 [ 32.739134] ? lock_downgrade+0x980/0x980 [ 32.743263] ? kasan_check_read+0x11/0x20 [ 32.747385] ? rcu_is_watching+0x85/0x130 [ 32.751507] compat_nf_setsockopt+0xfa/0x130 [ 32.755887] ? compat_nf_setsockopt+0xfa/0x130 [ 32.760441] compat_ip_setsockopt+0x8b/0xd0 [ 32.764738] compat_udp_setsockopt+0x45/0x80 [ 32.769126] ? udp_lib_unhash+0x950/0x950 [ 32.773251] compat_ipv6_setsockopt+0xb3/0x1c0 [ 32.777807] compat_udpv6_setsockopt+0x45/0x80 [ 32.782363] compat_sock_common_setsockopt+0xb2/0x140 [ 32.787523] ? udpv6_destroy_sock+0x190/0x190 [ 32.791989] ? sock_common_setsockopt+0xd0/0xd0 [ 32.796634] __compat_sys_setsockopt+0x183/0x710 [ 32.801376] ? __compat_sys_getsockopt+0x770/0x770 [ 32.806280] ? compat_SyS_get_robust_list+0x300/0x300 [ 32.811452] ? exit_to_usermode_loop+0x198/0x2f0 [ 32.816182] ? move_addr_to_kernel+0x60/0x60 [ 32.820570] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 32.826082] compat_SyS_setsockopt+0x34/0x50 [ 32.830465] ? scm_detach_fds_compat+0x3d0/0x3d0 [ 32.835198] do_fast_syscall_32+0x3ec/0xf9f [ 32.839510] ? do_int80_syscall_32+0x9c0/0x9c0 [ 32.844077] ? finish_task_switch+0x1b9/0x970 [ 32.848544] ? finish_task_switch+0x17a/0x970 [ 32.853025] ? syscall_return_slowpath+0x2ac/0x550 [ 32.857930] ? prepare_exit_to_usermode+0x350/0x350 [ 32.862933] ? sysret32_from_system_call+0x5/0x3c [ 32.867766] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.872584] entry_SYSENTER_compat+0x70/0x7f [ 32.876965] RIP: 0023:0xf7f36c99 [ 32.880298] RSP: 002b:00000000f7f320ac EFLAGS: 00000282 ORIG_RAX: 000000000000016e [ 32.887975] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000000000 [ 32.895225] RDX: 000000000000048b RSI: 0000000020000100 RDI: 0000000000000018 [ 32.902470] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 32.909723] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 32.916976] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000