[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 30.270190] kauditd_printk_skb: 7 callbacks suppressed [ 30.270203] audit: type=1800 audit(1542655847.869:29): pid=5919 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 30.300105] audit: type=1800 audit(1542655847.869:30): pid=5919 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 35.336469] sshd (6057) used greatest stack depth: 15632 bytes left Warning: Permanently added '10.128.0.72' (ECDSA) to the list of known hosts. 2018/11/19 19:32:11 parsed 1 programs 2018/11/19 19:32:13 executed programs: 0 [ 115.850025] IPVS: ftp: loaded support on port[0] = 21 [ 115.853049] IPVS: ftp: loaded support on port[0] = 21 [ 115.873061] IPVS: ftp: loaded support on port[0] = 21 [ 115.874900] IPVS: ftp: loaded support on port[0] = 21 [ 115.882966] IPVS: ftp: loaded support on port[0] = 21 [ 115.913121] IPVS: ftp: loaded support on port[0] = 21 [ 116.729782] bridge0: port 1(bridge_slave_0) entered blocking state [ 116.736946] bridge0: port 1(bridge_slave_0) entered disabled state [ 116.758322] device bridge_slave_0 entered promiscuous mode [ 116.776769] bridge0: port 1(bridge_slave_0) entered blocking state [ 116.785040] bridge0: port 1(bridge_slave_0) entered disabled state [ 116.793064] device bridge_slave_0 entered promiscuous mode [ 116.802789] bridge0: port 1(bridge_slave_0) entered blocking state [ 116.809573] bridge0: port 1(bridge_slave_0) entered disabled state [ 116.816997] device bridge_slave_0 entered promiscuous mode [ 116.836748] bridge0: port 2(bridge_slave_1) entered blocking state [ 116.844964] bridge0: port 2(bridge_slave_1) entered disabled state [ 116.859121] device bridge_slave_1 entered promiscuous mode [ 116.866965] bridge0: port 1(bridge_slave_0) entered blocking state [ 116.874616] bridge0: port 1(bridge_slave_0) entered disabled state [ 116.882418] device bridge_slave_0 entered promiscuous mode [ 116.904944] bridge0: port 2(bridge_slave_1) entered blocking state [ 116.915215] bridge0: port 2(bridge_slave_1) entered disabled state [ 116.933881] device bridge_slave_1 entered promiscuous mode [ 116.940985] bridge0: port 2(bridge_slave_1) entered blocking state [ 116.947334] bridge0: port 2(bridge_slave_1) entered disabled state [ 116.955370] device bridge_slave_1 entered promiscuous mode [ 116.964085] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 116.986117] bridge0: port 1(bridge_slave_0) entered blocking state [ 116.999540] bridge0: port 1(bridge_slave_0) entered disabled state [ 117.006946] device bridge_slave_0 entered promiscuous mode [ 117.020679] bridge0: port 2(bridge_slave_1) entered blocking state [ 117.027010] bridge0: port 2(bridge_slave_1) entered disabled state [ 117.036386] device bridge_slave_1 entered promiscuous mode [ 117.045096] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 117.054229] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 117.065185] bridge0: port 1(bridge_slave_0) entered blocking state [ 117.073340] bridge0: port 1(bridge_slave_0) entered disabled state [ 117.081196] device bridge_slave_0 entered promiscuous mode [ 117.096229] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 117.105466] bridge0: port 2(bridge_slave_1) entered blocking state [ 117.112612] bridge0: port 2(bridge_slave_1) entered disabled state [ 117.126940] device bridge_slave_1 entered promiscuous mode [ 117.135558] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 117.150816] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 117.165459] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 117.194171] bridge0: port 2(bridge_slave_1) entered blocking state [ 117.214675] bridge0: port 2(bridge_slave_1) entered disabled state [ 117.221908] device bridge_slave_1 entered promiscuous mode [ 117.236425] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 117.254915] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 117.291181] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 117.332337] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 117.356563] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 117.379978] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 117.397772] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 117.411628] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 117.460272] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 117.484062] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 117.496687] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 117.510726] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 117.556520] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 117.578890] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 117.590027] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 117.605401] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 117.623667] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 117.640487] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 117.655229] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 117.666584] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 117.679096] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 117.688584] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 117.700396] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 117.711757] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 117.725363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 117.735520] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 117.749349] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 117.760964] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 117.769687] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 117.778422] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 117.805219] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 117.817073] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 117.831785] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 117.950607] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 117.959070] team0: Port device team_slave_0 added [ 117.967043] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 117.974814] team0: Port device team_slave_0 added [ 118.030940] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 118.038961] team0: Port device team_slave_1 added [ 118.045082] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 118.058651] team0: Port device team_slave_1 added [ 118.069114] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 118.076628] team0: Port device team_slave_0 added [ 118.106887] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 118.116081] team0: Port device team_slave_0 added [ 118.136212] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 118.148285] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 118.155654] team0: Port device team_slave_0 added [ 118.169213] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 118.179700] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 118.187119] team0: Port device team_slave_1 added [ 118.206575] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 118.215509] team0: Port device team_slave_1 added [ 118.231785] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 118.248965] team0: Port device team_slave_1 added [ 118.260370] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 118.271936] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 118.289639] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 118.296882] team0: Port device team_slave_0 added [ 118.309753] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 118.328191] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 118.335817] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 118.349738] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 118.359040] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 118.370315] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 118.379133] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 118.386525] team0: Port device team_slave_1 added [ 118.395714] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 118.410607] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 118.430243] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 118.439774] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 118.447666] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 118.462560] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 118.470712] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 118.478913] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 118.486538] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 118.496144] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 118.509780] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 118.519563] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 118.527501] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 118.543246] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 118.557416] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 118.566485] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 118.574913] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 118.583589] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 118.591406] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 118.599365] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 118.608773] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 118.618056] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 118.625954] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 118.637538] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 118.646194] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 118.659348] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 118.669010] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 118.680232] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 118.691736] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 118.700728] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 118.710778] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 118.720286] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 118.736632] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 118.746283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 118.767374] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 118.782149] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 118.792992] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 118.813817] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 118.834698] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 118.849144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 118.856965] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 118.864910] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 118.872791] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 118.891417] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 118.913285] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 118.927649] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 119.357571] bridge0: port 2(bridge_slave_1) entered blocking state [ 119.364131] bridge0: port 2(bridge_slave_1) entered forwarding state [ 119.371250] bridge0: port 1(bridge_slave_0) entered blocking state [ 119.377651] bridge0: port 1(bridge_slave_0) entered forwarding state [ 119.389366] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 119.447181] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 119.542545] bridge0: port 2(bridge_slave_1) entered blocking state [ 119.548970] bridge0: port 2(bridge_slave_1) entered forwarding state [ 119.555646] bridge0: port 1(bridge_slave_0) entered blocking state [ 119.562083] bridge0: port 1(bridge_slave_0) entered forwarding state [ 119.582693] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 119.599083] bridge0: port 2(bridge_slave_1) entered blocking state [ 119.605462] bridge0: port 2(bridge_slave_1) entered forwarding state [ 119.612170] bridge0: port 1(bridge_slave_0) entered blocking state [ 119.618596] bridge0: port 1(bridge_slave_0) entered forwarding state [ 119.633472] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 119.721282] bridge0: port 2(bridge_slave_1) entered blocking state [ 119.727651] bridge0: port 2(bridge_slave_1) entered forwarding state [ 119.734342] bridge0: port 1(bridge_slave_0) entered blocking state [ 119.740750] bridge0: port 1(bridge_slave_0) entered forwarding state [ 119.752748] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 119.760393] bridge0: port 2(bridge_slave_1) entered blocking state [ 119.766767] bridge0: port 2(bridge_slave_1) entered forwarding state [ 119.773535] bridge0: port 1(bridge_slave_0) entered blocking state [ 119.779954] bridge0: port 1(bridge_slave_0) entered forwarding state [ 119.793571] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 119.807849] bridge0: port 2(bridge_slave_1) entered blocking state [ 119.814247] bridge0: port 2(bridge_slave_1) entered forwarding state [ 119.820971] bridge0: port 1(bridge_slave_0) entered blocking state [ 119.827340] bridge0: port 1(bridge_slave_0) entered forwarding state [ 119.847096] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 120.470082] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 120.477330] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 120.498926] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 120.506158] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 120.515432] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 122.346248] 8021q: adding VLAN 0 to HW filter on device bond0 [ 122.452226] 8021q: adding VLAN 0 to HW filter on device bond0 [ 122.511838] 8021q: adding VLAN 0 to HW filter on device bond0 [ 122.560064] 8021q: adding VLAN 0 to HW filter on device bond0 [ 122.585772] 8021q: adding VLAN 0 to HW filter on device bond0 [ 122.605196] 8021q: adding VLAN 0 to HW filter on device bond0 [ 122.617826] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 122.728633] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 122.752524] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 122.846676] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 122.865208] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 122.880879] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 122.889143] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 122.895291] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 122.905295] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 123.039304] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 123.048308] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 123.055380] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 123.071298] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 123.078433] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 123.085517] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 123.101434] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 123.128943] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 123.135980] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 123.186570] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 123.208135] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 123.217068] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 123.253525] 8021q: adding VLAN 0 to HW filter on device team0 [ 123.261852] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 123.282012] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 123.292646] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 123.359017] 8021q: adding VLAN 0 to HW filter on device team0 [ 123.368730] 8021q: adding VLAN 0 to HW filter on device team0 [ 123.429000] 8021q: adding VLAN 0 to HW filter on device team0 [ 123.467301] 8021q: adding VLAN 0 to HW filter on device team0 [ 123.572468] 8021q: adding VLAN 0 to HW filter on device team0 2018/11/19 19:32:22 executed programs: 6 [ 126.126834] ------------[ cut here ]------------ [ 126.126870] kobject: 'loop1' (00000000518ceb3c): kobject_cleanup, parent (null) [ 126.131633] DEBUG_LOCKS_WARN_ON(depth <= 0) [ 126.131731] WARNING: CPU: 1 PID: 7647 at kernel/locking/lockdep.c:3595 lock_release+0x740/0xa10 [ 126.143750] kobject: '7:1' (00000000fd1001df): kobject_add_internal: parent: 'bdi', set: 'devices' [ 126.144323] Kernel panic - not syncing: panic_on_warn set ... [ 126.154213] kobject: '7:1' (00000000fd1001df): kobject_uevent_env [ 126.162230] CPU: 1 PID: 7647 Comm: syz-executor3 Not tainted 4.20.0-rc1-next-20181109+ #110 [ 126.162238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 126.162242] Call Trace: [ 126.162260] dump_stack+0x244/0x39d [ 126.162279] ? dump_stack_print_info.cold.1+0x20/0x20 [ 126.168341] kobject: 'loop1' (00000000518ceb3c): calling ktype release [ 126.174393] panic+0x2ad/0x55c [ 126.174408] ? add_taint.cold.5+0x16/0x16 [ 126.174428] ? __warn.cold.8+0x5/0x45 [ 126.183119] kobject: '7:1' (00000000fd1001df): fill_kobj_path: path = '/devices/virtual/bdi/7:1' [ 126.192272] ? __warn+0xe8/0x1d0 [ 126.192289] ? lock_release+0x740/0xa10 [ 126.192302] __warn.cold.8+0x20/0x45 [ 126.192319] ? lock_release+0x740/0xa10 [ 126.195055] kobject: 'queue' (000000003d069ab9): kobject_cleanup, parent (null) [ 126.198534] report_bug+0x254/0x2d0 [ 126.198550] do_error_trap+0x11b/0x200 [ 126.198564] do_invalid_op+0x36/0x40 [ 126.198581] ? lock_release+0x740/0xa10 [ 126.206173] kobject: 'loop1' (000000008d77fe4a): kobject_add_internal: parent: 'block', set: 'devices' [ 126.210413] invalid_op+0x14/0x20 [ 126.210430] RIP: 0010:lock_release+0x740/0xa10 [ 126.210453] Code: 03 38 d0 7c 08 84 d2 0f 85 da 02 00 00 8b 35 a7 95 b3 08 85 f6 75 15 48 c7 c6 20 66 2b 88 48 c7 c7 c0 33 2b 88 e8 10 36 e7 ff <0f> 0b 48 8b 95 e8 fe ff ff 4c 89 f7 48 8b b5 f0 fe ff ff e8 e8 58 [ 126.210461] RSP: 0018:ffff8801d8e37868 EFLAGS: 00010086 [ 126.213782] kobject: 'queue' (000000003d069ab9): calling ktype release [ 126.217790] RAX: 0000000000000000 RBX: 1ffff1003b1c6f12 RCX: 0000000000000000 [ 126.217798] RDX: 0000000000000000 RSI: ffffffff8165ba15 RDI: 0000000000000006 [ 126.217808] RBP: ffff8801d8e37998 R08: ffff8801d8abc0c0 R09: fffffbfff12b2254 [ 126.217821] R10: fffffbfff12b2254 R11: ffffffff895912a3 R12: ffffffff8b0e27a0 [ 126.222186] kobject: 'loop1' (000000008d77fe4a): kobject_uevent_env [ 126.230521] R13: ffff8801d8e37970 R14: ffff8801d8abc0c0 R15: ffff8801d8e378b0 [ 126.230541] ? vprintk_func+0x85/0x181 [ 126.230558] ? lock_release+0x740/0xa10 [ 126.230579] ? loop_control_ioctl+0xf5/0x4e0 [ 126.234093] kobject: 'queue': free name [ 126.237928] ? lock_downgrade+0x900/0x900 [ 126.237943] ? debug_mutex_wake_waiter+0x271/0x490 [ 126.237965] ? kasan_check_read+0x11/0x20 [ 126.237983] ? do_raw_spin_unlock+0xa7/0x330 [ 126.241701] kobject: '0' (00000000a5f5d4a0): kobject_cleanup, parent (null) [ 126.245650] ? do_raw_spin_trylock+0x270/0x270 [ 126.254097] kobject: 'loop1' (000000008d77fe4a): kobject_uevent_env: uevent_suppress caused the event to drop! [ 126.257567] ? kasan_check_write+0x14/0x20 [ 126.257587] __mutex_unlock_slowpath+0x102/0x8c0 [ 126.261596] kobject: 'loop1': free name [ 126.265177] ? wait_for_completion+0x8a0/0x8a0 [ 126.265196] ? graph_lock+0x270/0x270 [ 126.269334] kobject: 'holders' (00000000a703fd59): kobject_add_internal: parent: 'loop1', set: '' [ 126.278604] ? graph_lock+0x270/0x270 [ 126.278617] ? graph_lock+0x270/0x270 [ 126.278630] ? graph_lock+0x270/0x270 [ 126.278651] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 126.282219] kobject: '0' (00000000a5f5d4a0): calling ktype release [ 126.286679] ? loop_lookup+0x105/0x230 [ 126.286694] ? loop_exit_cb+0x20/0x20 [ 126.286711] mutex_unlock+0xd/0x10 [ 126.309138] kobject: 'slaves' (00000000b8d508e4): kobject_add_internal: parent: 'loop1', set: '' [ 126.311040] loop_control_ioctl+0xf5/0x4e0 [ 126.311056] ? loop_add+0xa20/0xa20 [ 126.311075] ? __might_fault+0x12b/0x1e0 [ 126.317787] kobject: 'loop1' (000000008d77fe4a): kobject_uevent_env [ 126.324985] ? lock_downgrade+0x900/0x900 [ 126.325000] ? lock_release+0xa10/0xa10 [ 126.325013] ? perf_trace_sched_process_exec+0x860/0x860 [ 126.325033] ? loop_add+0xa20/0xa20 [ 126.332513] kobject: '0': free name [ 126.339564] do_vfs_ioctl+0x1de/0x1790 [ 126.339580] ? ioctl_preallocate+0x300/0x300 [ 126.339594] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 126.339612] ? __fget_light+0x2e9/0x430 [ 126.347031] kobject: 'loop1' (000000008d77fe4a): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 126.353263] ? fget_raw+0x20/0x20 [ 126.353275] ? _copy_to_user+0xc8/0x110 [ 126.353306] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 126.353320] ? put_timespec64+0x10f/0x1b0 [ 126.353337] ? nsecs_to_jiffies+0x30/0x30 [ 126.360743] kobject: 'cpu0' (00000000a7eff0c9): kobject_cleanup, parent (null) [ 126.364481] ? do_syscall_64+0x9a/0x820 [ 126.364501] ? do_syscall_64+0x9a/0x820 [ 126.368606] kobject: 'cpu0' (00000000a7eff0c9): calling ktype release [ 126.372868] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 126.372887] ? security_file_ioctl+0x94/0xc0 [ 126.372903] ksys_ioctl+0xa9/0xd0 [ 126.377239] kobject: 'queue' (0000000092de7508): kobject_add_internal: parent: 'loop1', set: '' [ 126.381014] __x64_sys_ioctl+0x73/0xb0 [ 126.381029] do_syscall_64+0x1b9/0x820 [ 126.381044] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 126.381063] ? syscall_return_slowpath+0x5e0/0x5e0 [ 126.386155] kobject: 'cpu0': free name [ 126.390110] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 126.390128] ? trace_hardirqs_on_caller+0x310/0x310 [ 126.390142] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 126.390160] ? prepare_exit_to_usermode+0x291/0x3b0 [ 126.395161] kobject: 'mq' (000000001464e5bd): kobject_add_internal: parent: 'loop1', set: '' [ 126.402510] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 126.402530] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 126.402540] RIP: 0033:0x457569 [ 126.402557] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 126.407257] kobject: 'cpu1' (00000000ce11b5d7): kobject_cleanup, parent (null) [ 126.417240] RSP: 002b:00007ffcc574e908 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 126.417253] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 126.417261] RDX: 9999999999999999 RSI: 0000000000004c81 RDI: 0000000000000004 [ 126.417269] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 126.417276] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000ba3914 [ 126.417289] R13: 00000000004c233f R14: 00000000004d3648 R15: 00000000ffffffff [ 126.421728] kobject: 'mq' (000000001464e5bd): kobject_uevent_env [ 126.427277] Kernel Offset: disabled [ 126.769096] Rebooting in 86400 seconds..