[ 37.311588] audit: type=1800 audit(1538693665.214:24): pid=5692 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="sudo" dev="sda1" ino=2454 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 37.726509] audit: type=1800 audit(1538693665.704:25): pid=5692 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 37.751804] audit: type=1800 audit(1538693665.704:26): pid=5692 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 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 '10.128.0.9' (ECDSA) to the list of known hosts. syzkaller login: [ 87.627721] IPVS: ftp: loaded support on port[0] = 21 [ 87.630231] IPVS: ftp: loaded support on port[0] = 21 [ 87.640549] IPVS: ftp: loaded support on port[0] = 21 [ 87.642726] IPVS: ftp: loaded support on port[0] = 21 [ 87.650795] IPVS: ftp: loaded support on port[0] = 21 [ 87.655127] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program [ 87.803525] libceph: connect [d::]:6789 error -99 [ 87.818130] libceph: mon0 [d::]:6789 connect error [ 87.825621] libceph: connect [d::]:6789 error -99 [ 87.831769] libceph: mon0 [d::]:6789 connect error [ 87.836924] libceph: connect [d::]:6789 error -99 [ 87.841983] libceph: mon0 [d::]:6789 connect error [ 87.848496] libceph: connect [d::]:6789 error -99 [ 87.853423] libceph: mon0 [d::]:6789 connect error [ 87.860727] libceph: connect [d::]:6789 error -99 [ 87.863958] libceph: connect [d::]:6789 error -99 [ 87.865942] libceph: mon0 [d::]:6789 connect error [ 87.871132] libceph: mon0 [d::]:6789 connect error [ 88.474761] libceph: connect [d::]:6789 error -99 [ 88.479795] libceph: mon0 [d::]:6789 connect error [ 88.485034] libceph: connect [d::]:6789 error -99 [ 88.490028] libceph: mon0 [d::]:6789 connect error [ 88.495222] libceph: connect [d::]:6789 error -99 [ 88.500145] libceph: mon0 [d::]:6789 connect error [ 88.514720] libceph: connect [d::]:6789 error -99 [ 88.519718] libceph: mon0 [d::]:6789 connect error [ 88.574800] libceph: connect [d::]:6789 error -99 [ 88.579927] libceph: mon0 [d::]:6789 connect error [ 88.585129] libceph: connect [d::]:6789 error -99 [ 88.590066] libceph: mon0 [d::]:6789 connect error [ 89.534873] libceph: connect [d::]:6789 error -99 [ 89.534889] libceph: connect [d::]:6789 error -99 [ 89.535000] libceph: mon0 [d::]:6789 connect error [ 89.539927] libceph: mon0 [d::]:6789 connect error [ 89.545090] libceph: connect [d::]:6789 error -99 [ 89.550950] libceph: connect [d::]:6789 error -99 [ 89.557335] libceph: mon0 [d::]:6789 connect error [ 89.561870] libceph: mon0 [d::]:6789 connect error [ 89.567115] libceph: connect [d::]:6789 error -99 [ 89.571891] libceph: connect [d::]:6789 error -99 [ 89.577179] libceph: mon0 [d::]:6789 connect error [ 89.581791] libceph: mon0 [d::]:6789 connect error [ 91.534871] libceph: connect [d::]:6789 error -99 [ 91.534876] libceph: connect [d::]:6789 error -99 [ 91.534955] libceph: mon0 [d::]:6789 connect error [ 91.539842] libceph: mon0 [d::]:6789 connect error [ 91.545003] libceph: connect [d::]:6789 error -99 [ 91.550134] libceph: connect [d::]:6789 error -99 [ 91.555537] libceph: mon0 [d::]:6789 connect error [ 91.560210] libceph: mon0 [d::]:6789 connect error [ 91.565439] libceph: connect [d::]:6789 error -99 [ 91.570176] libceph: connect [d::]:6789 error -99 [ 91.575337] libceph: mon0 [d::]:6789 connect error [ 91.579963] libceph: mon0 [d::]:6789 connect error [ 91.585506] libceph: connect [d::]:6789 error -99 [ 91.590342] libceph: connect [d::]:6789 error -99 [ 91.595127] libceph: mon0 [d::]:6789 connect error [ 91.599757] libceph: mon0 [d::]:6789 connect error [ 91.604968] libceph: connect [d::]:6789 error -99 [ 91.609805] libceph: connect [d::]:6789 error -99 [ 91.614901] libceph: mon0 [d::]:6789 connect error [ 91.619551] libceph: mon0 [d::]:6789 connect error [ 91.624685] libceph: connect [d::]:6789 error -99 [ 91.629494] libceph: connect [d::]:6789 error -99 [ 91.634545] libceph: mon0 [d::]:6789 connect error [ 91.642026] libceph: mon0 [d::]:6789 connect error [ 92.494792] libceph: connect [d::]:6789 error -99 [ 92.499919] libceph: mon0 [d::]:6789 connect error [ 92.505241] libceph: connect [d::]:6789 error -99 [ 92.510128] libceph: mon0 [d::]:6789 connect error [ 92.515508] libceph: connect [d::]:6789 error -99 [ 92.520380] libceph: mon0 [d::]:6789 connect error [ 92.574802] libceph: connect [d::]:6789 error -99 [ 92.579806] libceph: mon0 [d::]:6789 connect error [ 92.584959] libceph: connect [d::]:6789 error -99 [ 92.589926] libceph: mon0 [d::]:6789 connect error [ 92.595030] libceph: connect [d::]:6789 error -99 [ 92.600093] libceph: mon0 [d::]:6789 connect error executing program executing program executing program executing program executing program [ 92.772582] libceph: connect [d::]:6789 error -99 [ 92.777733] libceph: mon0 [d::]:6789 connect error [ 92.811688] libceph: connect [d::]:6789 error -99 [ 92.816865] libceph: mon0 [d::]:6789 connect error executing program [ 92.822985] libceph: connect [d::]:6789 error -99 [ 92.829948] libceph: mon0 [d::]:6789 connect error [ 92.830708] libceph: connect [d::]:6789 error -99 [ 92.842288] libceph: mon0 [d::]:6789 connect error [ 92.847825] libceph: connect [d::]:6789 error -99 [ 92.852727] libceph: mon0 [d::]:6789 connect error [ 92.858785] libceph: connect [d::]:6789 error -99 [ 92.863694] libceph: mon0 [d::]:6789 connect error [ 93.474742] libceph: connect [d::]:6789 error -99 [ 93.479888] libceph: mon0 [d::]:6789 connect error [ 93.514759] libceph: connect [d::]:6789 error -99 [ 93.519736] libceph: mon0 [d::]:6789 connect error [ 93.544836] libceph: connect [d::]:6789 error -99 [ 93.549777] libceph: mon0 [d::]:6789 connect error [ 93.555700] libceph: connect [d::]:6789 error -99 [ 93.560583] libceph: mon0 [d::]:6789 connect error [ 93.565643] libceph: connect [d::]:6789 error -99 [ 93.570635] libceph: mon0 [d::]:6789 connect error [ 93.575692] libceph: connect [d::]:6789 error -99 [ 93.580562] libceph: mon0 [d::]:6789 connect error [ 94.494775] libceph: connect [d::]:6789 error -99 [ 94.499744] libceph: mon0 [d::]:6789 connect error [ 94.574777] libceph: connect [d::]:6789 error -99 [ 94.579726] libceph: mon0 [d::]:6789 connect error [ 94.584779] libceph: connect [d::]:6789 error -99 [ 94.590624] libceph: mon0 [d::]:6789 connect error [ 94.596596] libceph: connect [d::]:6789 error -99 [ 94.601463] libceph: mon0 [d::]:6789 connect error [ 94.606487] libceph: connect [d::]:6789 error -99 [ 94.611639] libceph: mon0 [d::]:6789 connect error [ 94.616659] libceph: connect [d::]:6789 error -99 [ 94.621649] libceph: mon0 [d::]:6789 connect error [ 96.494763] libceph: connect [d::]:6789 error -99 [ 96.499729] libceph: mon0 [d::]:6789 connect error [ 96.505156] libceph: connect [d::]:6789 error -99 [ 96.510133] libceph: mon0 [d::]:6789 connect error [ 96.515474] libceph: connect [d::]:6789 error -99 [ 96.520360] libceph: mon0 [d::]:6789 connect error [ 96.574837] libceph: connect [d::]:6789 error -99 [ 96.579760] libceph: mon0 [d::]:6789 connect error [ 96.584986] libceph: connect [d::]:6789 error -99 [ 96.589988] libceph: mon0 [d::]:6789 connect error [ 96.595164] libceph: connect [d::]:6789 error -99 [ 96.600172] libceph: mon0 [d::]:6789 connect error [ 96.605329] libceph: connect [d::]:6789 error -99 [ 96.610277] libceph: mon0 [d::]:6789 connect error [ 96.616082] libceph: connect [d::]:6789 error -99 [ 96.620980] libceph: mon0 [d::]:6789 connect error [ 96.626112] libceph: connect [d::]:6789 error -99 [ 96.631115] libceph: mon0 [d::]:6789 connect error [ 96.636199] libceph: connect [d::]:6789 error -99 [ 96.641099] libceph: mon0 [d::]:6789 connect error [ 96.646207] libceph: connect [d::]:6789 error -99 [ 96.651107] libceph: mon0 [d::]:6789 connect error [ 97.534833] libceph: connect [d::]:6789 error -99 [ 97.534838] libceph: connect [d::]:6789 error -99 [ 97.534915] libceph: mon0 [d::]:6789 connect error [ 97.539904] libceph: mon0 [d::]:6789 connect error [ 97.545400] libceph: connect [d::]:6789 error -99 [ 97.550098] libceph: connect [d::]:6789 error -99 [ 97.555297] libceph: mon0 [d::]:6789 connect error [ 97.559891] libceph: mon0 [d::]:6789 connect error [ 97.574747] libceph: connect [d::]:6789 error -99 [ 97.579867] libceph: mon0 [d::]:6789 connect error [ 97.585093] libceph: connect [d::]:6789 error -99 [ 97.590085] libceph: mon0 [d::]:6789 connect error executing program [ 97.774488] libceph: connect [d::]:6789 error -99 [ 97.779590] libceph: mon0 [d::]:6789 connect error [ 97.785399] WARNING: CPU: 1 PID: 5895 at net/ceph/messenger.c:3101 clear_standby+0x12f/0x160 [ 97.793985] Kernel panic - not syncing: panic_on_warn set ... [ 97.793985] [ 97.801347] CPU: 1 PID: 5895 Comm: syz-executor222 Not tainted 4.19.0-rc6+ #44 [ 97.808699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.818058] Call Trace: [ 97.820663] dump_stack+0x1c4/0x2b4 [ 97.824300] ? dump_stack_print_info.cold.2+0x52/0x52 [ 97.829494] panic+0x238/0x4e7 [ 97.832690] ? add_taint.cold.5+0x16/0x16 [ 97.836828] ? __warn.cold.8+0x148/0x1ba [ 97.840935] ? __warn.cold.8+0x117/0x1ba [ 97.844999] ? clear_standby+0x12f/0x160 [ 97.849065] __warn.cold.8+0x163/0x1ba [ 97.852961] ? clear_standby+0x12f/0x160 [ 97.857034] report_bug+0x254/0x2d0 [ 97.860671] do_error_trap+0x1fc/0x4d0 [ 97.864570] ? math_error+0x3f0/0x3f0 [ 97.868377] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 97.873212] ? trace_hardirqs_on_caller+0x310/0x310 [ 97.878372] ? kasan_check_write+0x14/0x20 [ 97.882623] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 97.887463] do_invalid_op+0x1b/0x20 [ 97.891175] invalid_op+0x14/0x20 [ 97.894644] RIP: 0010:clear_standby+0x12f/0x160 [ 97.899368] 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 [ 97.918615] RSP: 0018:ffff8801c1037640 EFLAGS: 00010293 [ 97.924106] RAX: ffff8801d3b34080 RBX: ffff8801d2240de8 RCX: ffffffff878e93d3 [ 97.931426] RDX: 0000000000000000 RSI: ffffffff878e942f RDI: 0000000000000007 [ 97.939709] RBP: ffff8801c1037658 R08: ffff8801d3b34080 R09: ffffed003a4481ed [ 97.947101] R10: ffff8801c1037658 R11: ffff8801d2240f6f R12: 0000000000000001 [ 97.954489] R13: ffff8801d2240f20 R14: ffff8801bc8d6b10 R15: ffff8801c1037728 [ 97.961766] ? clear_standby+0xd3/0x160 [ 97.965728] ? clear_standby+0x12f/0x160 [ 97.969867] ceph_con_send+0x460/0x600 [ 97.973747] ? ceph_msg_data_add_pages+0x340/0x340 [ 97.978667] ? ceph_auth_entity_name_encode+0x120/0x120 [ 97.984028] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 97.989567] __send_prepared_auth_request+0x155/0x1b0 [ 97.994753] __open_session+0x3cd/0x550 [ 97.998724] ceph_monc_open_session+0x193/0x350 [ 98.003391] __ceph_open_session+0xe2/0x810 [ 98.007709] ? bdi_register_va+0x49/0x80 [ 98.011763] ? ceph_destroy_client+0x1a0/0x1a0 [ 98.016337] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.021975] ? super_setup_bdi_name+0x1a5/0x240 [ 98.026732] ? kill_block_super+0x100/0x100 [ 98.031116] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.036711] ceph_mount+0x11de/0x1b80 [ 98.040510] ? ceph_compare_super+0x520/0x520 [ 98.045126] ? smack_sb_copy_data+0x27e/0x2d0 [ 98.049622] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.055200] mount_fs+0xae/0x31d [ 98.058566] vfs_kern_mount.part.35+0xdc/0x4f0 [ 98.063148] ? may_umount+0xb0/0xb0 [ 98.066776] ? _raw_read_unlock+0x2c/0x50 [ 98.070988] ? __get_fs_type+0x97/0xc0 [ 98.074873] do_mount+0x581/0x31f0 [ 98.078408] ? copy_mount_string+0x40/0x40 [ 98.082634] ? kasan_unpoison_shadow+0x35/0x50 [ 98.087218] ? kasan_kmalloc+0xc7/0xe0 [ 98.091216] ? kmem_cache_alloc_trace+0x31f/0x750 [ 98.096066] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.101604] ? copy_mount_options+0x288/0x380 [ 98.106178] ksys_mount+0x12d/0x140 [ 98.109804] __x64_sys_mount+0xbe/0x150 [ 98.113777] do_syscall_64+0x1b9/0x820 [ 98.117656] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 98.123011] ? syscall_return_slowpath+0x5e0/0x5e0 [ 98.127936] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 98.132777] ? trace_hardirqs_on_caller+0x310/0x310 [ 98.137786] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 98.142802] ? prepare_exit_to_usermode+0x291/0x3b0 [ 98.147819] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 98.152661] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 98.157847] RIP: 0033:0x441049 [ 98.161083] 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 [ 98.179988] RSP: 002b:00007ffd4b525518 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 98.187790] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 0000000000441049 [ 98.195061] RDX: 0000000020000100 RSI: 0000000020000080 RDI: 0000000020000040 [ 98.202335] RBP: 0000000000016a53 R08: 0000000020000140 R09: 0000000000000009 [ 98.209700] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 [ 98.216965] R13: 0000000000401f30 R14: 0000000000000000 R15: 0000000000000000 [ 98.225481] Kernel Offset: disabled [ 98.229120] Rebooting in 86400 seconds..