[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 35.640672] audit: type=1800 audit(1538693775.773:25): pid=5661 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 35.667453] audit: type=1800 audit(1538693775.773:26): pid=5661 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 35.700820] audit: type=1800 audit(1538693775.773:27): pid=5661 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] 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 '10.128.0.86' (ECDSA) to the list of known hosts. syzkaller login: [ 62.016210] IPVS: ftp: loaded support on port[0] = 21 [ 62.017743] IPVS: ftp: loaded support on port[0] = 21 [ 62.025093] IPVS: ftp: loaded support on port[0] = 21 [ 62.031304] IPVS: ftp: loaded support on port[0] = 21 [ 62.039477] IPVS: ftp: loaded support on port[0] = 21 [ 62.049433] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program [ 62.145099] libceph: connect [d::]:6789 error -99 [ 62.152394] libceph: mon0 [d::]:6789 connect error executing program executing program [ 62.188761] libceph: connect [d::]:6789 error -99 [ 62.193654] libceph: mon0 [d::]:6789 connect error [ 62.204955] libceph: connect [d::]:6789 error -99 [ 62.210622] libceph: connect [d::]:6789 error -99 [ 62.213035] libceph: mon0 [d::]:6789 connect error [ 62.215861] libceph: mon0 [d::]:6789 connect error [ 62.227945] libceph: connect [d::]:6789 error -99 [ 62.232940] libceph: mon0 [d::]:6789 connect error [ 62.244162] libceph: connect [d::]:6789 error -99 [ 62.249097] libceph: mon0 [d::]:6789 connect error [ 62.465406] libceph: connect [d::]:6789 error -99 [ 62.470420] libceph: mon0 [d::]:6789 connect error [ 63.495500] libceph: connect [d::]:6789 error -99 [ 63.495505] libceph: connect [d::]:6789 error -99 [ 63.495564] libceph: mon0 [d::]:6789 connect error [ 63.500459] libceph: mon0 [d::]:6789 connect error [ 63.505474] libceph: connect [d::]:6789 error -99 [ 63.510566] libceph: connect [d::]:6789 error -99 [ 63.515563] libceph: mon0 [d::]:6789 connect error [ 63.520207] libceph: mon0 [d::]:6789 connect error [ 63.525155] libceph: connect [d::]:6789 error -99 [ 63.530091] libceph: connect [d::]:6789 error -99 [ 63.535178] libceph: mon0 [d::]:6789 connect error [ 63.539935] libceph: mon0 [d::]:6789 connect error [ 64.455474] libceph: connect [d::]:6789 error -99 [ 64.460438] libceph: mon0 [d::]:6789 connect error [ 64.465496] libceph: connect [d::]:6789 error -99 [ 64.470383] libceph: mon0 [d::]:6789 connect error [ 64.475406] libceph: connect [d::]:6789 error -99 [ 64.480277] libceph: mon0 [d::]:6789 connect error [ 64.535400] libceph: connect [d::]:6789 error -99 [ 64.540343] libceph: mon0 [d::]:6789 connect error [ 64.545608] libceph: connect [d::]:6789 error -99 [ 64.550514] libceph: mon0 [d::]:6789 connect error [ 65.495548] libceph: connect [d::]:6789 error -99 [ 65.495585] libceph: connect [d::]:6789 error -99 [ 65.500513] libceph: mon0 [d::]:6789 connect error [ 65.505551] libceph: mon0 [d::]:6789 connect error [ 65.514799] libceph: connect [d::]:6789 error -99 [ 65.515467] libceph: connect [d::]:6789 error -99 [ 65.520879] libceph: mon0 [d::]:6789 connect error [ 65.525059] libceph: mon0 [d::]:6789 connect error [ 65.530490] libceph: connect [d::]:6789 error -99 [ 65.535072] libceph: connect [d::]:6789 error -99 [ 65.540148] libceph: mon0 [d::]:6789 connect error [ 65.544810] libceph: mon0 [d::]:6789 connect error [ 65.550060] libceph: connect [d::]:6789 error -99 [ 65.559724] libceph: mon0 [d::]:6789 connect error [ 66.455537] libceph: connect [d::]:6789 error -99 [ 66.460488] libceph: mon0 [d::]:6789 connect error [ 66.465793] libceph: connect [d::]:6789 error -99 [ 66.470713] libceph: mon0 [d::]:6789 connect error [ 66.475754] libceph: connect [d::]:6789 error -99 [ 66.480626] libceph: mon0 [d::]:6789 connect error [ 66.535466] libceph: connect [d::]:6789 error -99 [ 66.540425] libceph: mon0 [d::]:6789 connect error [ 66.545674] libceph: connect [d::]:6789 error -99 [ 66.550614] libceph: mon0 [d::]:6789 connect error [ 66.555724] libceph: connect [d::]:6789 error -99 [ 66.560615] libceph: mon0 [d::]:6789 connect error executing program executing program executing program [ 67.126694] libceph: connect [d::]:6789 error -99 [ 67.131718] libceph: mon0 [d::]:6789 connect error executing program executing program executing program [ 67.169628] libceph: connect [d::]:6789 error -99 [ 67.174594] libceph: mon0 [d::]:6789 connect error [ 67.186871] libceph: connect [d::]:6789 error -99 [ 67.193702] libceph: mon0 [d::]:6789 connect error [ 67.199188] libceph: connect [d::]:6789 error -99 [ 67.204082] libceph: mon0 [d::]:6789 connect error [ 67.228935] libceph: connect [d::]:6789 error -99 [ 67.231593] libceph: connect [d::]:6789 error -99 [ 67.233961] libceph: mon0 [d::]:6789 connect error [ 67.239860] libceph: mon0 [d::]:6789 connect error [ 67.435428] libceph: connect [d::]:6789 error -99 [ 67.440448] libceph: mon0 [d::]:6789 connect error [ 68.455482] libceph: connect [d::]:6789 error -99 [ 68.460456] libceph: mon0 [d::]:6789 connect error [ 68.465538] libceph: connect [d::]:6789 error -99 [ 68.470792] libceph: mon0 [d::]:6789 connect error [ 68.475966] libceph: connect [d::]:6789 error -99 [ 68.480847] libceph: mon0 [d::]:6789 connect error [ 68.535434] libceph: connect [d::]:6789 error -99 [ 68.540378] libceph: mon0 [d::]:6789 connect error [ 68.545552] libceph: connect [d::]:6789 error -99 [ 68.550511] libceph: mon0 [d::]:6789 connect error [ 68.555751] libceph: connect [d::]:6789 error -99 [ 68.560696] libceph: mon0 [d::]:6789 connect error [ 69.495461] libceph: connect [d::]:6789 error -99 [ 69.495466] libceph: connect [d::]:6789 error -99 [ 69.495525] libceph: mon0 [d::]:6789 connect error [ 69.500442] libceph: mon0 [d::]:6789 connect error [ 69.505446] libceph: connect [d::]:6789 error -99 [ 69.510893] libceph: connect [d::]:6789 error -99 [ 69.515196] libceph: mon0 [d::]:6789 connect error [ 69.520384] libceph: mon0 [d::]:6789 connect error [ 69.525012] libceph: connect [d::]:6789 error -99 [ 69.539711] libceph: mon0 [d::]:6789 connect error [ 70.455462] libceph: connect [d::]:6789 error -99 [ 70.460451] libceph: mon0 [d::]:6789 connect error [ 70.466015] libceph: connect [d::]:6789 error -99 [ 70.470888] libceph: mon0 [d::]:6789 connect error [ 70.535832] libceph: connect [d::]:6789 error -99 [ 70.540909] libceph: mon0 [d::]:6789 connect error [ 70.546058] libceph: connect [d::]:6789 error -99 [ 70.551247] libceph: mon0 [d::]:6789 connect error [ 70.556456] libceph: connect [d::]:6789 error -99 [ 70.561545] libceph: mon0 [d::]:6789 connect error [ 70.566644] libceph: connect [d::]:6789 error -99 [ 70.571555] libceph: mon0 [d::]:6789 connect error [ 70.576636] libceph: connect [d::]:6789 error -99 [ 70.581551] libceph: mon0 [d::]:6789 connect error [ 71.495500] libceph: connect [d::]:6789 error -99 [ 71.495505] libceph: connect [d::]:6789 error -99 [ 71.495565] libceph: mon0 [d::]:6789 connect error [ 71.500450] libceph: mon0 [d::]:6789 connect error [ 71.505517] libceph: connect [d::]:6789 error -99 [ 71.520217] libceph: mon0 [d::]:6789 connect error [ 71.525375] libceph: connect [d::]:6789 error -99 [ 71.530519] libceph: mon0 [d::]:6789 connect error [ 71.535751] libceph: connect [d::]:6789 error -99 [ 71.540641] libceph: mon0 [d::]:6789 connect error [ 71.545864] libceph: connect [d::]:6789 error -99 [ 71.550795] libceph: mon0 [d::]:6789 connect error executing program executing program executing program executing program [ 72.139201] libceph: connect [d::]:6789 error -99 [ 72.144144] libceph: mon0 [d::]:6789 connect error [ 72.174284] libceph: connect [d::]:6789 error -99 [ 72.179410] libceph: mon0 [d::]:6789 connect error executing program executing program [ 72.191311] libceph: connect [d::]:6789 error -99 [ 72.196651] libceph: mon0 [d::]:6789 connect error [ 72.202287] libceph: connect [d::]:6789 error -99 [ 72.207372] libceph: mon0 [d::]:6789 connect error [ 72.223193] libceph: connect [d::]:6789 error -99 [ 72.228174] libceph: mon0 [d::]:6789 connect error [ 72.233477] WARNING: CPU: 0 PID: 5877 at net/ceph/messenger.c:3101 clear_standby+0x12f/0x160 [ 72.242040] Kernel panic - not syncing: panic_on_warn set ... [ 72.242040] [ 72.242260] kobject: 'ceph-18' (00000000ea89bbc2): kobject_uevent_env [ 72.249403] CPU: 0 PID: 5877 Comm: syz-executor386 Not tainted 4.19.0-rc6+ #267 [ 72.249411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.249415] Call Trace: [ 72.249436] dump_stack+0x1c4/0x2b4 [ 72.249463] ? dump_stack_print_info.cold.2+0x52/0x52 [ 72.258895] kobject: 'ceph-18' (00000000ea89bbc2): fill_kobj_path: path = '/devices/virtual/bdi/ceph-18' [ 72.263485] panic+0x238/0x4e7 [ 72.263500] ? add_taint.cold.5+0x16/0x16 [ 72.263516] ? __warn.cold.8+0x148/0x1ba [ 72.263533] ? __warn.cold.8+0x117/0x1ba [ 72.276452] libceph: connect [d::]:6789 error -99 [ 72.279086] ? clear_standby+0x12f/0x160 [ 72.279102] __warn.cold.8+0x163/0x1ba [ 72.279117] ? clear_standby+0x12f/0x160 [ 72.279136] report_bug+0x254/0x2d0 [ 72.284587] libceph: mon0 [d::]:6789 connect error [ 72.293971] do_error_trap+0x1fc/0x4d0 [ 72.293985] ? math_error+0x3f0/0x3f0 [ 72.294000] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 72.294016] ? trace_hardirqs_on_caller+0x310/0x310 [ 72.294030] ? kasan_check_write+0x14/0x20 [ 72.294048] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 72.294066] do_invalid_op+0x1b/0x20 [ 72.365078] invalid_op+0x14/0x20 [ 72.368540] RIP: 0010:clear_standby+0x12f/0x160 [ 72.373195] Code: de e8 a5 22 f0 f9 48 85 db 0f 84 39 ff ff ff e8 67 21 f0 f9 0f 0b e9 2d ff ff ff e8 db 81 33 fa e9 67 ff ff ff e8 51 21 f0 f9 <0f> 0b eb a5 e8 e8 81 33 fa e9 f6 fe ff ff 4c 89 ef e8 db 81 33 fa [ 72.392079] RSP: 0018:ffff8801bdd37640 EFLAGS: 00010293 [ 72.397430] RAX: ffff8801d34b4280 RBX: ffff8801d37e91e8 RCX: ffffffff878e93d3 [ 72.404678] RDX: 0000000000000000 RSI: ffffffff878e942f RDI: 0000000000000007 [ 72.411933] RBP: ffff8801bdd37658 R08: ffff8801d34b4280 R09: ffffed003a6fd26d [ 72.419224] R10: ffff8801bdd37658 R11: ffff8801d37e936f R12: 0000000000000001 [ 72.426481] R13: ffff8801d37e9320 R14: ffff8801d7d0ab90 R15: ffff8801bdd37728 [ 72.433756] ? clear_standby+0xd3/0x160 [ 72.437717] ? clear_standby+0x12f/0x160 [ 72.441863] ceph_con_send+0x460/0x600 [ 72.445741] ? ceph_msg_data_add_pages+0x340/0x340 [ 72.450691] ? ceph_auth_entity_name_encode+0x120/0x120 [ 72.456071] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 72.461609] __send_prepared_auth_request+0x155/0x1b0 [ 72.466785] __open_session+0x3cd/0x550 [ 72.470785] ceph_monc_open_session+0x193/0x350 [ 72.475467] __ceph_open_session+0xe2/0x810 [ 72.479776] ? apparmor_cred_transfer+0x590/0x590 [ 72.484610] ? bdi_register_va+0x49/0x80 [ 72.488655] ? ceph_destroy_client+0x1a0/0x1a0 [ 72.493223] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 72.498750] ? super_setup_bdi_name+0x1a5/0x240 [ 72.503406] ? kill_block_super+0x100/0x100 [ 72.507711] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 72.513238] ceph_mount+0x11de/0x1b80 [ 72.517027] ? ceph_compare_super+0x520/0x520 [ 72.521512] ? kmem_cache_free+0x21a/0x290 [ 72.525734] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 72.531259] ? alloc_pages_current+0x114/0x210 [ 72.535830] mount_fs+0xae/0x31d [ 72.539186] vfs_kern_mount.part.35+0xdc/0x4f0 [ 72.543753] ? may_umount+0xb0/0xb0 [ 72.547365] ? _raw_read_unlock+0x2c/0x50 [ 72.551495] ? __get_fs_type+0x97/0xc0 [ 72.555376] do_mount+0x581/0x31f0 [ 72.558918] ? copy_mount_string+0x40/0x40 [ 72.563144] ? kasan_unpoison_shadow+0x35/0x50 [ 72.567730] ? kasan_kmalloc+0xc7/0xe0 [ 72.571604] ? kmem_cache_alloc_trace+0x31f/0x750 [ 72.576435] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 72.581961] ? _copy_from_user+0xdf/0x150 [ 72.586097] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 72.591616] ? copy_mount_options+0x288/0x380 [ 72.596096] ksys_mount+0x12d/0x140 [ 72.599705] __x64_sys_mount+0xbe/0x150 [ 72.603665] do_syscall_64+0x1b9/0x820 [ 72.607538] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 72.612894] ? syscall_return_slowpath+0x5e0/0x5e0 [ 72.617817] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 72.622647] ? trace_hardirqs_on_caller+0x310/0x310 [ 72.627649] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 72.632650] ? prepare_exit_to_usermode+0x291/0x3b0 [ 72.637657] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 72.642488] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 72.647657] RIP: 0033:0x441049 [ 72.650838] Code: e8 6c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 72.669822] RSP: 002b:00007fffb9b6e7c8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 72.677511] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 0000000000441049 [ 72.684774] RDX: 0000000020000100 RSI: 0000000020000080 RDI: 0000000020000040 [ 72.692037] RBP: 0000000000010675 R08: 0000000020000140 R09: 0000000000000009 [ 72.699287] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 [ 72.706536] R13: 0000000000401f30 R14: 0000000000000000 R15: 0000000000000000 [ 72.714702] Kernel Offset: disabled [ 72.718325] Rebooting in 86400 seconds..