[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 30.207482] audit: type=1800 audit(1539632926.779:33): pid=5322 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 30.228857] audit: type=1800 audit(1539632926.779:34): pid=5322 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 33.797265] audit: type=1400 audit(1539632930.369:35): avc: denied { map } for pid=5497 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.38' (ECDSA) to the list of known hosts. net.ipv6.conf.syz_tun.accept_dad = 0 [ 40.407427] audit: type=1400 audit(1539632936.979:36): avc: denied { map } for pid=5512 comm="syz-executor721" path="/root/syz-executor721229353" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 40.439560] IPVS: ftp: loaded support on port[0] = 21 net.ipv6.conf.syz_tun.router_solicitations = 0 executing program [ 40.564521] libceph: connect [d::]:6789 error -101 [ 40.569936] libceph: mon0 [d::]:6789 connect error [ 41.508984] libceph: connect [d::]:6789 error -101 [ 41.514086] libceph: mon0 [d::]:6789 connect error [ 42.468679] libceph: connect [d::]:6789 error -101 [ 42.473773] libceph: mon0 [d::]:6789 connect error [ 43.509793] libceph: connect [d::]:6789 error -101 [ 43.514801] libceph: mon0 [d::]:6789 connect error [ 44.548703] libceph: connect [d::]:6789 error -101 [ 44.553778] libceph: mon0 [d::]:6789 connect error executing program [ 45.508752] libceph: connect [d::]:6789 error -101 [ 45.513752] libceph: mon0 [d::]:6789 connect error [ 45.566900] libceph: connect [d::]:6789 error -101 [ 45.572064] libceph: mon0 [d::]:6789 connect error [ 45.577458] WARNING: CPU: 0 PID: 5533 at net/ceph/messenger.c:3101 clear_standby+0x12f/0x160 [ 45.586122] Kernel panic - not syncing: panic_on_warn set ... [ 45.586122] [ 45.593477] CPU: 0 PID: 5533 Comm: syz-executor721 Not tainted 4.19.0-rc8+ #64 [ 45.600818] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.610157] Call Trace: [ 45.612770] dump_stack+0x1c4/0x2b4 [ 45.616390] ? dump_stack_print_info.cold.2+0x52/0x52 [ 45.621599] panic+0x238/0x4e7 [ 45.624783] ? add_taint.cold.5+0x16/0x16 [ 45.628924] ? __warn.cold.8+0x148/0x1ba [ 45.632994] ? __warn.cold.8+0x117/0x1ba [ 45.637046] ? clear_standby+0x12f/0x160 [ 45.641113] __warn.cold.8+0x163/0x1ba [ 45.645026] ? rcu_bh_qs+0xc0/0xc0 [ 45.648556] ? clear_standby+0x12f/0x160 [ 45.652606] report_bug+0x254/0x2d0 [ 45.656224] do_error_trap+0x1fc/0x4d0 [ 45.660109] ? math_error+0x3f0/0x3f0 [ 45.663908] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.668740] ? trace_hardirqs_on_caller+0x310/0x310 [ 45.673751] ? kasan_check_write+0x14/0x20 [ 45.677987] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.682818] do_invalid_op+0x1b/0x20 [ 45.686521] invalid_op+0x14/0x20 [ 45.689979] RIP: 0010:clear_standby+0x12f/0x160 [ 45.694634] Code: de e8 f5 f3 ef f9 48 85 db 0f 84 39 ff ff ff e8 b7 f2 ef f9 0f 0b e9 2d ff ff ff e8 9b 62 33 fa e9 67 ff ff ff e8 a1 f2 ef f9 <0f> 0b eb a5 e8 a8 62 33 fa e9 f6 fe ff ff 4c 89 ef e8 9b 62 33 fa [ 45.713520] RSP: 0018:ffff8801ccb3f640 EFLAGS: 00010293 [ 45.718872] RAX: ffff8801c4f1c040 RBX: ffff8801b869c428 RCX: ffffffff878eb653 [ 45.726127] RDX: 0000000000000000 RSI: ffffffff878eb6af RDI: 0000000000000007 [ 45.733383] RBP: ffff8801ccb3f658 R08: ffff8801c4f1c040 R09: ffffed00370d38b5 [ 45.740647] R10: ffff8801ccb3f658 R11: ffff8801b869c5af R12: 0000000000000001 [ 45.747898] R13: ffff8801b869c560 R14: ffff8801ce6fdb90 R15: ffff8801ccb3f728 [ 45.755185] ? clear_standby+0xd3/0x160 [ 45.759146] ? clear_standby+0x12f/0x160 [ 45.763200] ceph_con_send+0x460/0x600 [ 45.767096] ? ceph_msg_data_add_pages+0x340/0x340 [ 45.772029] ? ceph_auth_entity_name_encode+0x120/0x120 [ 45.777392] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 45.782928] __send_prepared_auth_request+0x155/0x1b0 [ 45.788126] __open_session+0x3cd/0x550 [ 45.792093] ceph_monc_open_session+0x193/0x350 [ 45.796752] __ceph_open_session+0xe2/0x810 [ 45.801066] ? bdi_register_va+0x49/0x80 [ 45.805115] ? ceph_destroy_client+0x1a0/0x1a0 [ 45.809702] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.815226] ? super_setup_bdi_name+0x1a5/0x240 [ 45.819880] ? kill_block_super+0x100/0x100 [ 45.824196] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.829741] ceph_mount+0x11de/0x1b80 [ 45.833543] ? ceph_compare_super+0x520/0x520 [ 45.838031] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 45.843559] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.849110] mount_fs+0xae/0x31d [ 45.852472] vfs_kern_mount.part.35+0xdc/0x4f0 [ 45.857044] ? may_umount+0xb0/0xb0 [ 45.860657] ? _raw_read_unlock+0x2c/0x50 [ 45.864790] ? __get_fs_type+0x97/0xc0 [ 45.868680] do_mount+0x581/0x31f0 [ 45.872223] ? copy_mount_string+0x40/0x40 [ 45.876468] ? copy_mount_options+0x5f/0x380 [ 45.880884] ? rcu_read_lock_sched_held+0x108/0x120 [ 45.885901] ? kmem_cache_alloc_trace+0x353/0x750 [ 45.890735] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 45.896260] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.901800] ? copy_mount_options+0x288/0x380 [ 45.906283] ksys_mount+0x12d/0x140 [ 45.909899] __x64_sys_mount+0xbe/0x150 [ 45.913864] do_syscall_64+0x1b9/0x820 [ 45.917738] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 45.923102] ? syscall_return_slowpath+0x5e0/0x5e0 [ 45.928029] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.932860] ? trace_hardirqs_on_caller+0x310/0x310 [ 45.937868] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 45.942870] ? prepare_exit_to_usermode+0x291/0x3b0 [ 45.947880] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.952713] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.957888] RIP: 0033:0x441ab9 [ 45.961070] Code: e8 0c ac 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 4b 03 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 45.979969] RSP: 002b:00007ffc369e2e58 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 45.987670] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 0000000000441ab9 [ 45.994926] RDX: 0000000020000100 RSI: 0000000020000080 RDI: 0000000020000040 [ 46.002178] RBP: 0000000000009e54 R08: 0000000020000140 R09: 0000000000000009 [ 46.009436] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 [ 46.016690] R13: 0000000000402320 R14: 0000000000000000 R15: 0000000000000000 [ 46.025011] Kernel Offset: disabled [ 46.028689] Rebooting in 86400 seconds..