[ 39.227327] audit: type=1800 audit(1547932144.478:27): pid=7730 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 39.255916] audit: type=1800 audit(1547932144.478:28): pid=7730 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 39.881870] audit: type=1800 audit(1547932145.188:29): pid=7730 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 39.907011] audit: type=1800 audit(1547932145.188:30): pid=7730 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.110' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 702.893562] libceph: connect [d::]:6640 error -101 [ 702.899166] libceph: mon0 [d::]:6640 connect error [ 703.417011] libceph: connect [d::]:6640 error -101 [ 703.422144] libceph: mon0 [d::]:6640 connect error [ 704.435654] libceph: connect [d::]:6640 error -101 [ 704.440639] libceph: mon0 [d::]:6640 connect error [ 706.435600] libceph: connect [d::]:6640 error -101 [ 706.440647] libceph: mon0 [d::]:6640 connect error [ 706.516309] libceph: connect [d::]:6640 error -101 [ 706.521341] libceph: mon0 [d::]:6640 connect error [ 707.475609] libceph: connect [d::]:6640 error -101 [ 707.480628] libceph: mon0 [d::]:6640 connect error executing program [ 707.897793] libceph: connect [d::]:6640 error -101 [ 707.902789] libceph: mon0 [d::]:6640 connect error [ 708.445715] libceph: connect [d::]:6640 error -101 [ 708.450798] libceph: mon0 [d::]:6640 connect error [ 709.475597] libceph: connect [d::]:6640 error -101 [ 709.480596] libceph: mon0 [d::]:6640 connect error [ 711.475650] libceph: connect [d::]:6640 error -101 [ 711.480749] libceph: mon0 [d::]:6640 connect error [ 711.486432] libceph: connect [d::]:6640 error -101 [ 711.491489] libceph: mon0 [d::]:6640 connect error [ 712.515619] libceph: connect [d::]:6640 error -101 [ 712.520624] libceph: mon0 [d::]:6640 connect error executing program [ 712.899687] libceph: connect [d::]:6640 error -101 [ 712.904846] libceph: mon0 [d::]:6640 connect error [ 713.445588] libceph: connect [d::]:6640 error -101 [ 713.450573] libceph: mon0 [d::]:6640 connect error [ 714.515683] libceph: connect [d::]:6640 error -101 [ 714.520696] libceph: mon0 [d::]:6640 connect error [ 716.435608] libceph: connect [d::]:6640 error -101 [ 716.440637] libceph: mon0 [d::]:6640 connect error [ 717.475683] libceph: connect [d::]:6640 error -101 [ 717.480877] libceph: mon0 [d::]:6640 connect error executing program [ 717.903467] libceph: connect [d::]:6640 error -101 [ 717.909158] libceph: mon0 [d::]:6640 connect error [ 718.445587] libceph: connect [d::]:6640 error -101 [ 718.450679] libceph: mon0 [d::]:6640 connect error [ 719.475732] libceph: connect [d::]:6640 error -101 [ 719.480752] libceph: mon0 [d::]:6640 connect error [ 721.476081] libceph: connect [d::]:6640 error -101 [ 721.481069] libceph: mon0 [d::]:6640 connect error [ 722.435590] libceph: connect [d::]:6640 error -101 [ 722.440575] libceph: mon0 [d::]:6640 connect error executing program [ 722.907928] libceph: connect [d::]:6640 error -101 [ 722.913217] libceph: mon0 [d::]:6640 connect error [ 723.445699] libceph: connect [d::]:6640 error -101 [ 723.450904] libceph: mon0 [d::]:6640 connect error [ 724.515789] libceph: connect [d::]:6640 error -101 [ 724.521095] libceph: mon0 [d::]:6640 connect error [ 726.435640] libceph: connect [d::]:6640 error -101 [ 726.440691] libceph: mon0 [d::]:6640 connect error [ 727.475603] libceph: connect [d::]:6640 error -101 [ 727.480619] libceph: mon0 [d::]:6640 connect error executing program [ 727.915389] libceph: connect [d::]:6640 error -101 [ 727.920479] libceph: mon0 [d::]:6640 connect error [ 728.445699] libceph: connect [d::]:6640 error -101 [ 728.450942] libceph: mon0 [d::]:6640 connect error [ 729.475741] libceph: connect [d::]:6640 error -101 [ 729.480825] libceph: mon0 [d::]:6640 connect error [ 731.476000] libceph: connect [d::]:6640 error -101 [ 731.480997] libceph: mon0 [d::]:6640 connect error [ 732.435682] libceph: connect [d::]:6640 error -101 [ 732.440754] libceph: mon0 [d::]:6640 connect error executing program [ 732.920866] libceph: connect [d::]:6640 error -101 [ 732.926237] libceph: mon0 [d::]:6640 connect error [ 733.415589] libceph: connect [d::]:6640 error -101 [ 733.420650] libceph: mon0 [d::]:6640 connect error [ 734.435618] libceph: connect [d::]:6640 error -101 [ 734.440664] libceph: mon0 [d::]:6640 connect error [ 736.435660] libceph: connect [d::]:6640 error -101 [ 736.440793] libceph: mon0 [d::]:6640 connect error [ 736.515707] libceph: connect [d::]:6640 error -101 [ 736.520702] libceph: mon0 [d::]:6640 connect error [ 737.475616] libceph: connect [d::]:6640 error -101 [ 737.480623] libceph: mon0 [d::]:6640 connect error executing program [ 737.923502] libceph: connect [d::]:6640 error -101 [ 737.928580] libceph: mon0 [d::]:6640 connect error [ 737.933925] WARNING: CPU: 0 PID: 7909 at net/ceph/messenger.c:3073 clear_standby+0x12f/0x160 [ 737.942572] Kernel panic - not syncing: panic_on_warn set ... [ 737.948442] CPU: 0 PID: 7909 Comm: syz-executor940 Not tainted 5.0.0-rc2+ #33 [ 737.955694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 737.965026] Call Trace: [ 737.967600] dump_stack+0x1db/0x2d0 [ 737.971207] ? dump_stack_print_info.cold+0x20/0x20 [ 737.976201] ? preempt_schedule_common+0x4f/0xe0 [ 737.980942] ? clear_standby+0x120/0x160 [ 737.984985] panic+0x2cb/0x65c [ 737.988158] ? add_taint.cold+0x16/0x16 [ 737.992128] ? clear_standby+0x12f/0x160 [ 737.996190] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 738.001713] ? __probe_kernel_read+0x1f4/0x250 [ 738.006278] ? __warn.cold+0x5/0x48 [ 738.009885] ? __warn+0xe8/0x1d0 [ 738.013299] ? clear_standby+0x12f/0x160 [ 738.017413] __warn.cold+0x20/0x48 [ 738.020941] ? clear_standby+0x12f/0x160 [ 738.024983] report_bug+0x263/0x2b0 [ 738.028595] do_error_trap+0x11b/0x200 [ 738.032469] do_invalid_op+0x37/0x50 [ 738.036167] ? clear_standby+0x12f/0x160 [ 738.040217] invalid_op+0x14/0x20 [ 738.043658] RIP: 0010:clear_standby+0x12f/0x160 [ 738.048317] 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 [ 738.067203] RSP: 0018:ffff88808c9476d0 EFLAGS: 00010293 [ 738.072551] RAX: ffff8880930f6540 RBX: ffff888092e25d68 RCX: ffffffff87c6c0b3 [ 738.079801] RDX: 0000000000000000 RSI: ffffffff87c6c10f RDI: 0000000000000007 [ 738.087050] RBP: ffff88808c9476e8 R08: ffff8880930f6540 R09: ffffed10125c4bde [ 738.094300] R10: ffff88808c9476e8 R11: ffff888092e25eef R12: 0000000000000001 [ 738.101551] R13: ffff888092e25ea0 R14: ffff88808c947798 R15: ffff888092e25ee8 [ 738.108811] ? clear_standby+0xd3/0x160 [ 738.112769] ? clear_standby+0x12f/0x160 [ 738.116814] ceph_con_send+0x450/0x610 [ 738.120684] ? ceph_msg_new+0x40/0x40 [ 738.124470] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 738.129990] __send_prepared_auth_request+0x155/0x1b0 [ 738.135177] __open_session+0x3d9/0x570 [ 738.139151] ceph_monc_open_session+0x1a2/0x360 [ 738.143807] __ceph_open_session+0xe2/0x7e0 [ 738.148127] ? bdi_register_va+0x4c/0x80 [ 738.152182] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 738.157725] ? ceph_destroy_client+0x1a0/0x1a0 [ 738.162299] ? kill_block_super+0x100/0x100 [ 738.166609] ? ceph_put_super+0x70/0x70 [ 738.170584] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 738.176123] ? ns_capable_common+0x141/0x170 [ 738.180523] ceph_mount+0x10d2/0x1c80 [ 738.184315] ? ceph_compare_super+0x510/0x510 [ 738.188794] ? m_stop+0x20/0x20 [ 738.192058] ? __get_fs_type+0x9a/0xd0 [ 738.195929] ? find_held_lock+0x35/0x120 [ 738.199975] mount_fs+0x123/0x43a [ 738.203411] ? emergency_thaw_all+0x260/0x260 [ 738.207886] ? lock_release+0xc40/0xc40 [ 738.211840] ? digsig_verify.cold+0x32/0x32 [ 738.216146] vfs_kern_mount.part.0+0xdb/0x570 [ 738.220625] ? may_umount+0xb0/0xb0 [ 738.224235] ? _raw_read_unlock+0x2d/0x50 [ 738.228425] ? __get_fs_type+0x9a/0xd0 [ 738.232310] do_mount+0x58e/0x3330 [ 738.235840] ? lock_release+0xc40/0xc40 [ 738.239810] ? copy_mount_string+0x40/0x40 [ 738.244038] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 738.249562] ? _copy_from_user+0xdd/0x150 [ 738.253854] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 738.259384] ? copy_mount_options+0x30e/0x440 [ 738.263865] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 738.269390] ksys_mount+0xdb/0x150 [ 738.272916] __x64_sys_mount+0xbe/0x150 [ 738.276882] do_syscall_64+0x1a3/0x800 [ 738.280759] ? syscall_return_slowpath+0x5f0/0x5f0 [ 738.285673] ? prepare_exit_to_usermode+0x232/0x3b0 [ 738.290678] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 738.295520] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 738.300701] RIP: 0033:0x440d49 [ 738.303879] Code: e8 cc ab 02 00 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 bb 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 738.322868] RSP: 002b:00007ffc33a8a928 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 738.330564] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 0000000000440d49 [ 738.337867] RDX: 0000000020000100 RSI: 0000000020000080 RDI: 0000000020000040 [ 738.345125] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000009004002c8 [ 738.352378] R10: 0000000000000000 R11: 0000000000000286 R12: 00000000000b2eda [ 738.359625] R13: 0000000000401d20 R14: 0000000000000000 R15: 0000000000000000 [ 738.368081] Kernel Offset: disabled [ 738.371786] Rebooting in 86400 seconds..