[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 38.681219] audit: type=1800 audit(1547934031.369:25): pid=7780 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 38.718406] audit: type=1800 audit(1547934031.369:26): pid=7780 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 38.741586] audit: type=1800 audit(1547934031.369:27): pid=7780 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 '10.128.10.21' (ECDSA) to the list of known hosts. syzkaller login: [ 50.127775] IPVS: ftp: loaded support on port[0] = 21 [ 50.128081] IPVS: ftp: loaded support on port[0] = 21 [ 50.145173] IPVS: ftp: loaded support on port[0] = 21 [ 50.145486] IPVS: ftp: loaded support on port[0] = 21 [ 50.154426] IPVS: ftp: loaded support on port[0] = 21 [ 50.164251] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program [ 50.344937] libceph: connect [d::]:6640 error -99 [ 50.352441] libceph: mon0 [d::]:6640 connect error [ 50.360190] libceph: connect [d::]:6640 error -99 [ 50.365220] libceph: mon0 [d::]:6640 connect error [ 50.383715] libceph: connect [d::]:6640 error -99 [ 50.389139] libceph: mon0 [d::]:6640 connect error [ 50.389683] libceph: connect [d::]:6640 error -99 [ 50.401436] libceph: mon0 [d::]:6640 connect error [ 50.406710] libceph: connect [d::]:6640 error -99 [ 50.408296] libceph: connect [d::]:6640 error -99 [ 50.415162] libceph: mon0 [d::]:6640 connect error [ 50.419754] libceph: mon0 [d::]:6640 connect error [ 51.509567] libceph: connect [d::]:6640 error -99 [ 51.509580] libceph: connect [d::]:6640 error -99 [ 51.514579] libceph: mon0 [d::]:6640 connect error [ 51.519668] libceph: mon0 [d::]:6640 connect error [ 51.524809] libceph: connect [d::]:6640 error -99 [ 51.529665] libceph: connect [d::]:6640 error -99 [ 51.534534] libceph: mon0 [d::]:6640 connect error [ 51.539418] libceph: mon0 [d::]:6640 connect error [ 51.544546] libceph: connect [d::]:6640 error -99 [ 51.549475] libceph: connect [d::]:6640 error -99 [ 51.554396] libceph: mon0 [d::]:6640 connect error [ 51.559294] libceph: mon0 [d::]:6640 connect error [ 52.468896] libceph: connect [d::]:6640 error -99 [ 52.473887] libceph: mon0 [d::]:6640 connect error [ 52.479052] libceph: connect [d::]:6640 error -99 [ 52.483954] libceph: mon0 [d::]:6640 connect error [ 52.489068] libceph: connect [d::]:6640 error -99 [ 52.493974] libceph: mon0 [d::]:6640 connect error [ 52.548903] libceph: connect [d::]:6640 error -99 [ 52.553928] libceph: mon0 [d::]:6640 connect error [ 52.559255] libceph: connect [d::]:6640 error -99 [ 52.564225] libceph: mon0 [d::]:6640 connect error [ 52.569412] libceph: connect [d::]:6640 error -99 [ 52.574315] libceph: mon0 [d::]:6640 connect error [ 53.510095] libceph: connect [d::]:6640 error -99 [ 53.510587] libceph: connect [d::]:6640 error -99 [ 53.515068] libceph: mon0 [d::]:6640 connect error [ 53.520556] libceph: mon0 [d::]:6640 connect error [ 53.525029] libceph: connect [d::]:6640 error -99 [ 53.530434] libceph: connect [d::]:6640 error -99 [ 53.534833] libceph: mon0 [d::]:6640 connect error [ 53.540185] libceph: mon0 [d::]:6640 connect error [ 53.544839] libceph: connect [d::]:6640 error -99 [ 53.550247] libceph: connect [d::]:6640 error -99 [ 53.554765] libceph: mon0 [d::]:6640 connect error [ 53.560107] libceph: mon0 [d::]:6640 connect error [ 54.469023] libceph: connect [d::]:6640 error -99 [ 54.474049] libceph: mon0 [d::]:6640 connect error [ 54.479215] libceph: connect [d::]:6640 error -99 [ 54.484157] libceph: mon0 [d::]:6640 connect error [ 54.489288] libceph: connect [d::]:6640 error -99 [ 54.494205] libceph: mon0 [d::]:6640 connect error [ 54.548888] libceph: connect [d::]:6640 error -99 [ 54.553847] libceph: mon0 [d::]:6640 connect error [ 54.559206] libceph: connect [d::]:6640 error -99 [ 54.564203] libceph: mon0 [d::]:6640 connect error [ 54.569510] libceph: connect [d::]:6640 error -99 [ 54.574381] libceph: mon0 [d::]:6640 connect error executing program executing program executing program [ 55.304176] libceph: connect [d::]:6640 error -99 [ 55.309354] libceph: mon0 [d::]:6640 connect error [ 55.336303] libceph: connect [d::]:6640 error -99 [ 55.341591] libceph: mon0 [d::]:6640 connect error executing program executing program executing program [ 55.367496] libceph: connect [d::]:6640 error -99 [ 55.373069] libceph: mon0 [d::]:6640 connect error [ 55.398323] libceph: connect [d::]:6640 error -99 [ 55.403476] libceph: mon0 [d::]:6640 connect error [ 55.408979] WARNING: CPU: 1 PID: 7971 at net/ceph/messenger.c:3073 clear_standby+0x12f/0x160 [ 55.417630] Kernel panic - not syncing: panic_on_warn set ... [ 55.423520] CPU: 1 PID: 7971 Comm: syz-executor425 Not tainted 5.0.0-rc2+ #33 [ 55.430607] kobject: 'ceph-11' (0000000039413926): kobject_add_internal: parent: 'bdi', set: 'devices' [ 55.430781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.430791] Call Trace: [ 55.430812] dump_stack+0x1db/0x2d0 [ 55.430830] ? dump_stack_print_info.cold+0x20/0x20 [ 55.430843] ? preempt_schedule_common+0x4f/0xe0 [ 55.440850] kobject: 'ceph-11' (0000000039413926): kobject_uevent_env [ 55.449673] ? clear_standby+0x120/0x160 [ 55.449694] panic+0x2cb/0x65c [ 55.449711] ? add_taint.cold+0x16/0x16 [ 55.449732] ? clear_standby+0x12f/0x160 [ 55.449747] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.449761] ? __probe_kernel_read+0x1f4/0x250 [ 55.449777] ? __warn.cold+0x5/0x48 [ 55.449793] ? __warn+0xe8/0x1d0 [ 55.452843] kobject: 'ceph-11' (0000000039413926): fill_kobj_path: path = '/devices/virtual/bdi/ceph-11' [ 55.455991] ? clear_standby+0x12f/0x160 [ 55.456009] __warn.cold+0x20/0x48 [ 55.456026] ? clear_standby+0x12f/0x160 [ 55.456043] report_bug+0x263/0x2b0 [ 55.456063] do_error_trap+0x11b/0x200 [ 55.456081] do_invalid_op+0x37/0x50 [ 55.465814] libceph: connect [d::]:6640 error -99 [ 55.465885] libceph: mon0 [d::]:6640 connect error [ 55.472398] ? clear_standby+0x12f/0x160 [ 55.472418] invalid_op+0x14/0x20 [ 55.472435] RIP: 0010:clear_standby+0x12f/0x160 [ 55.472451] Code: de e8 a5 3f bb f9 48 85 db 0f 84 39 ff ff ff e8 f7 3d bb f9 0f 0b e9 2d ff ff ff e8 cb 2e ff f9 e9 67 ff ff ff e8 e1 3d bb f9 <0f> 0b eb a5 e8 d8 2e ff f9 e9 f6 fe ff ff 4c 89 ef e8 cb 2e ff f9 [ 55.472459] RSP: 0018:ffff88808ecb76d0 EFLAGS: 00010293 [ 55.472473] RAX: ffff88808d1006c0 RBX: ffff88808d990768 RCX: ffffffff87c6c0b3 [ 55.472482] RDX: 0000000000000000 RSI: ffffffff87c6c10f RDI: 0000000000000007 [ 55.472491] RBP: ffff88808ecb76e8 R08: ffff88808d1006c0 R09: ffffed1011b3211e [ 55.472501] R10: ffff88808ecb76e8 R11: ffff88808d9908ef R12: 0000000000000001 [ 55.472510] R13: ffff88808d9908a0 R14: ffff88808ecb7798 R15: ffff88808d9908e8 [ 55.472535] ? clear_standby+0xd3/0x160 [ 55.624424] ? clear_standby+0x12f/0x160 [ 55.628486] ceph_con_send+0x450/0x610 [ 55.632361] ? ceph_msg_new+0x40/0x40 [ 55.636198] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 55.641784] __send_prepared_auth_request+0x155/0x1b0 [ 55.646966] __open_session+0x3d9/0x570 [ 55.650930] ceph_monc_open_session+0x1a2/0x360 [ 55.655588] __ceph_open_session+0xe2/0x7e0 [ 55.659899] ? bdi_register_va+0x4c/0x80 [ 55.663956] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.669499] ? ceph_destroy_client+0x1a0/0x1a0 [ 55.674094] ? kill_block_super+0x100/0x100 [ 55.678443] ? ceph_put_super+0x70/0x70 [ 55.682414] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.685137] kobject: 'ceph-12' (00000000ed6f7b9e): kobject_add_internal: parent: 'bdi', set: 'devices' [ 55.687950] ? ns_capable_common+0x141/0x170 [ 55.698006] kobject: 'ceph-12' (00000000ed6f7b9e): kobject_uevent_env [ 55.701795] ceph_mount+0x10d2/0x1c80 [ 55.701820] ? ceph_compare_super+0x510/0x510 [ 55.701839] ? m_stop+0x20/0x20 [ 55.701857] ? refcount_inc_not_zero_checked+0x2e0/0x2e0 [ 55.701872] ? __get_fs_type+0x9a/0xd0 [ 55.701888] ? find_held_lock+0x35/0x120 [ 55.701909] mount_fs+0x123/0x43a [ 55.709840] kobject: 'ceph-12' (00000000ed6f7b9e): fill_kobj_path: path = '/devices/virtual/bdi/ceph-12' [ 55.712266] ? emergency_thaw_all+0x260/0x260 [ 55.712284] ? lock_release+0xc40/0xc40 [ 55.712303] ? apparmor_cred_prepare+0x5b0/0x5b0 [ 55.712325] vfs_kern_mount.part.0+0xdb/0x570 [ 55.712343] ? may_umount+0xb0/0xb0 [ 55.721578] libceph: connect [d::]:6640 error -99 [ 55.725547] ? _raw_read_unlock+0x2d/0x50 [ 55.725563] ? __get_fs_type+0x9a/0xd0 [ 55.725585] do_mount+0x58e/0x3330 [ 55.725600] ? lock_release+0xc40/0xc40 [ 55.729766] libceph: mon0 [d::]:6640 connect error [ 55.733536] ? copy_mount_string+0x40/0x40 [ 55.733564] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.733580] ? _copy_from_user+0xdd/0x150 [ 55.733598] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.733614] ? copy_mount_options+0x30e/0x440 [ 55.733630] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.737433] libceph: connect [d::]:6640 error -99 [ 55.746676] ksys_mount+0xdb/0x150 [ 55.746696] __x64_sys_mount+0xbe/0x150 [ 55.746718] do_syscall_64+0x1a3/0x800 [ 55.746737] ? syscall_return_slowpath+0x5f0/0x5f0 [ 55.746754] ? prepare_exit_to_usermode+0x232/0x3b0 [ 55.746776] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.746799] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.746813] RIP: 0033:0x441619 [ 55.752092] libceph: mon0 [d::]:6640 connect error [ 55.755263] 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 [ 55.755272] RSP: 002b:00007ffc22b090b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 55.755286] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441619 [ 55.755296] RDX: 0000000020000100 RSI: 0000000020000080 RDI: 0000000020000040 [ 55.755305] RBP: 000000000000c4ae R08: 0000000000000000 R09: 000000000000c4ae [ 55.755314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 55.755323] R13: 0000000000402500 R14: 0000000000000000 R15: 0000000000000000 [ 55.761084] Kernel Offset: disabled [ 55.934635] Rebooting in 86400 seconds..