[ 29.696164] audit: type=1800 audit(1543905200.337:27): pid=5903 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 29.729678] audit: type=1800 audit(1543905200.337:28): pid=5903 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. [ 30.553698] audit: type=1800 audit(1543905201.267:29): pid=5903 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 30.574791] audit: type=1800 audit(1543905201.267:30): pid=5903 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 '10.128.0.56' (ECDSA) to the list of known hosts. net.ipv6.conf.syz_tun.accept_dad = 0 syzkaller login: [ 38.536063] IPVS: ftp: loaded support on port[0] = 21 net.ipv6.conf.syz_tun.router_solicitations = 0 [ 38.789064] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.796020] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.803340] device bridge_slave_0 entered promiscuous mode [ 38.821136] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.827715] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.834877] device bridge_slave_1 entered promiscuous mode [ 38.851888] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 38.869926] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 38.920648] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 38.941275] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 39.018341] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 39.025757] team0: Port device team_slave_0 added [ 39.042882] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 39.050644] team0: Port device team_slave_1 added [ 39.067621] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 39.088206] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 39.107263] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 39.128198] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported [ 39.277268] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.283745] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.290488] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.296903] bridge0: port 1(bridge_slave_0) entered forwarding state RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument [ 39.827531] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.882560] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 39.936796] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 39.943641] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 39.950851] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.005581] 8021q: adding VLAN 0 to HW filter on device team0 executing program [ 40.300627] libceph: connect [d::]:6789 error -101 [ 40.306179] libceph: mon0 [d::]:6789 connect error [ 40.311732] WARNING: CPU: 0 PID: 6059 at net/ceph/messenger.c:3086 clear_standby+0x12f/0x160 [ 40.320357] Kernel panic - not syncing: panic_on_warn set ... [ 40.326233] CPU: 0 PID: 6059 Comm: syz-executor411 Not tainted 4.20.0-rc5+ #141 [ 40.333658] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.342995] Call Trace: [ 40.345580] dump_stack+0x244/0x39d [ 40.349194] ? dump_stack_print_info.cold.1+0x20/0x20 [ 40.354375] panic+0x2ad/0x55c [ 40.357555] ? add_taint.cold.5+0x16/0x16 [ 40.361689] ? __warn.cold.8+0x5/0x45 [ 40.365490] ? __warn+0xe8/0x1d0 [ 40.368847] ? clear_standby+0x12f/0x160 [ 40.373068] __warn.cold.8+0x20/0x45 [ 40.376766] ? rcu_softirq_qs+0x20/0x20 [ 40.380722] ? clear_standby+0x12f/0x160 [ 40.384770] report_bug+0x254/0x2d0 [ 40.388413] do_error_trap+0x11b/0x200 [ 40.392285] do_invalid_op+0x36/0x40 [ 40.395999] ? clear_standby+0x12f/0x160 [ 40.400050] invalid_op+0x14/0x20 [ 40.403495] RIP: 0010:clear_standby+0x12f/0x160 [ 40.408159] Code: de e8 35 49 c6 f9 48 85 db 0f 84 39 ff ff ff e8 f7 47 c6 f9 0f 0b e9 2d ff ff ff e8 eb a0 09 fa e9 67 ff ff ff e8 e1 47 c6 f9 <0f> 0b eb a5 e8 f8 a0 09 fa e9 f6 fe ff ff 4c 89 ef e8 eb a0 09 fa [ 40.427044] RSP: 0018:ffff8881c07ef640 EFLAGS: 00010293 [ 40.432392] RAX: ffff8881cda04300 RBX: ffff8881ba0189e8 RCX: ffffffff87b95383 [ 40.439662] RDX: 0000000000000000 RSI: ffffffff87b953df RDI: 0000000000000007 [ 40.446917] RBP: ffff8881c07ef658 R08: ffff8881cda04300 R09: ffffed103740316d [ 40.454168] R10: ffff8881c07ef658 R11: ffff8881ba018b6f R12: 0000000000000001 [ 40.461422] R13: ffff8881ba018b20 R14: ffff8881cbd2ebc0 R15: ffff8881c07ef728 [ 40.468683] ? clear_standby+0xd3/0x160 [ 40.472673] ? clear_standby+0x12f/0x160 [ 40.476729] ceph_con_send+0x460/0x600 [ 40.480602] ? ceph_msg_new+0x40/0x40 [ 40.484404] ? ceph_auth_entity_name_encode+0x120/0x120 [ 40.489772] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 40.495297] __send_prepared_auth_request+0x155/0x1b0 [ 40.500474] __open_session+0x3cd/0x550 [ 40.504441] ceph_monc_open_session+0x193/0x350 [ 40.509095] __ceph_open_session+0xe2/0x810 [ 40.513404] ? __kasan_slab_free+0xcf/0x150 [ 40.517712] ? bdi_register_va+0x49/0x80 [ 40.521755] ? ceph_destroy_client+0x1a0/0x1a0 [ 40.526321] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.531895] ? super_setup_bdi_name+0x1a5/0x240 [ 40.536549] ? kill_block_super+0x100/0x100 [ 40.540854] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.546383] ceph_mount+0x11c5/0x1b30 [ 40.550167] ? putname+0xf2/0x130 [ 40.553608] ? ceph_compare_super+0x520/0x520 [ 40.558095] ? __get_fs_type+0x97/0xc0 [ 40.561977] ? lock_downgrade+0x900/0x900 [ 40.566111] mount_fs+0xae/0x31d [ 40.569489] ? digsig_verify+0x1530/0x1530 [ 40.573714] vfs_kern_mount.part.35+0xdc/0x4f0 [ 40.578281] ? may_umount+0xb0/0xb0 [ 40.581895] ? _raw_read_unlock+0x2c/0x50 [ 40.586032] ? __get_fs_type+0x97/0xc0 [ 40.589927] do_mount+0x581/0x31f0 [ 40.593454] ? lock_downgrade+0x900/0x900 [ 40.597588] ? copy_mount_string+0x40/0x40 [ 40.601809] ? usercopy_warn+0x110/0x110 [ 40.605888] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 40.611412] ? _copy_from_user+0xdf/0x150 [ 40.615555] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 40.621077] ? copy_mount_options+0x315/0x430 [ 40.625565] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 40.631090] ksys_mount+0x12d/0x140 [ 40.634704] __x64_sys_mount+0xbe/0x150 [ 40.638668] do_syscall_64+0x1b9/0x820 [ 40.642553] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 40.647905] ? syscall_return_slowpath+0x5e0/0x5e0 [ 40.652825] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.657685] ? trace_hardirqs_on_caller+0x310/0x310 [ 40.662696] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 40.667698] ? prepare_exit_to_usermode+0x291/0x3b0 [ 40.672714] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.677559] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.682786] RIP: 0033:0x4419a9 [ 40.685977] Code: 23 02 00 85 c0 b8 00 00 00 00 48 0f 44 c3 5b c3 90 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 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 40.704864] RSP: 002b:00007fff60324108 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 40.712556] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004419a9 [ 40.719806] RDX: 0000000020000100 RSI: 0000000020000080 RDI: 0000000020000040 [ 40.727069] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000402700 [ 40.734321] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402700 [ 40.741594] R13: 0000000000402790 R14: 0000000000000000 R15: 0000000000000000 [ 40.749909] Kernel Offset: disabled [ 40.753585] Rebooting in 86400 seconds..