[info] Using makefile-style concurrent boot in runlevel 2. [ 23.806167] audit: type=1800 audit(1540048237.111:21): pid=5172 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.834066] audit: type=1800 audit(1540048237.121:22): pid=5172 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.33' (ECDSA) to the list of known hosts. 2018/10/20 15:12:26 parsed 1 programs 2018/10/20 15:12:28 executed programs: 0 syzkaller login: [ 134.822673] IPVS: ftp: loaded support on port[0] = 21 [ 134.828415] IPVS: ftp: loaded support on port[0] = 21 [ 134.835340] IPVS: ftp: loaded support on port[0] = 21 [ 134.838916] IPVS: ftp: loaded support on port[0] = 21 [ 134.866819] IPVS: ftp: loaded support on port[0] = 21 [ 134.881926] IPVS: ftp: loaded support on port[0] = 21 [ 135.633854] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.647145] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.654508] device bridge_slave_0 entered promiscuous mode [ 135.667771] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.674546] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.681715] device bridge_slave_0 entered promiscuous mode [ 135.689597] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.695956] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.704027] device bridge_slave_0 entered promiscuous mode [ 135.717674] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.726119] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.733423] device bridge_slave_0 entered promiscuous mode [ 135.741767] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.748143] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.755744] device bridge_slave_1 entered promiscuous mode [ 135.777445] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.787997] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.795620] device bridge_slave_1 entered promiscuous mode [ 135.801988] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.808359] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.816209] device bridge_slave_1 entered promiscuous mode [ 135.823089] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.829436] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.836548] device bridge_slave_1 entered promiscuous mode [ 135.844436] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 135.853198] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.860837] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.867924] device bridge_slave_0 entered promiscuous mode [ 135.876181] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 135.887965] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 135.896758] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 135.904509] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 135.913340] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.920600] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.927610] device bridge_slave_0 entered promiscuous mode [ 135.935892] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.942632] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.949903] device bridge_slave_1 entered promiscuous mode [ 135.957079] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 135.967477] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 135.977097] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 135.993602] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 136.003264] bridge0: port 2(bridge_slave_1) entered blocking state [ 136.011670] bridge0: port 2(bridge_slave_1) entered disabled state [ 136.018954] device bridge_slave_1 entered promiscuous mode [ 136.052075] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 136.067034] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 136.102397] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 136.114203] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 136.129417] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 136.140609] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 136.170646] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 136.182578] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 136.191278] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 136.214090] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 136.242007] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 136.268341] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 136.323640] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 136.346480] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 136.383182] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 136.397295] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 136.418716] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 136.458930] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 136.473828] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 136.490505] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 136.514590] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 136.522054] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 136.535377] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 136.546693] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 136.554738] team0: Port device team_slave_0 added [ 136.573649] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 136.583557] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 136.592841] team0: Port device team_slave_0 added [ 136.617524] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 136.633755] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 136.647302] team0: Port device team_slave_0 added [ 136.653829] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 136.669341] team0: Port device team_slave_1 added [ 136.677815] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 136.688431] team0: Port device team_slave_1 added [ 136.718773] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 136.728294] team0: Port device team_slave_1 added [ 136.735403] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 136.754256] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 136.767461] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 136.790065] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 136.801430] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 136.808749] team0: Port device team_slave_0 added [ 136.817840] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 136.828884] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 136.838095] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 136.865781] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 136.882971] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 136.891589] team0: Port device team_slave_0 added [ 136.903712] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 136.915406] team0: Port device team_slave_1 added [ 136.923575] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 136.936443] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 136.946125] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 136.960959] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 136.972294] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 136.981437] team0: Port device team_slave_0 added [ 136.991792] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 137.002639] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 137.014860] team0: Port device team_slave_1 added [ 137.023158] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 137.031609] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 137.040533] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 137.053000] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 137.062471] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 137.073497] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 137.086335] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 137.100806] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 137.111655] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 137.119845] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 137.132866] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 137.140490] team0: Port device team_slave_1 added [ 137.149257] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 137.160728] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 137.169888] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 137.177852] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 137.188488] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 137.200118] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 137.210850] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 137.218889] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 137.245479] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 137.263440] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 137.280772] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 137.288080] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 137.305653] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 137.333804] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 137.342075] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 137.352653] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 137.373199] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 137.388638] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 137.407696] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 137.416312] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 137.432808] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 137.441207] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 137.449216] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 137.462776] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 137.480583] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 137.500202] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 137.526586] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 137.545548] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 137.564270] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 137.984630] bridge0: port 2(bridge_slave_1) entered blocking state [ 137.991222] bridge0: port 2(bridge_slave_1) entered forwarding state [ 137.998247] bridge0: port 1(bridge_slave_0) entered blocking state [ 138.004709] bridge0: port 1(bridge_slave_0) entered forwarding state [ 138.026703] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 138.106046] bridge0: port 2(bridge_slave_1) entered blocking state [ 138.112535] bridge0: port 2(bridge_slave_1) entered forwarding state [ 138.119240] bridge0: port 1(bridge_slave_0) entered blocking state [ 138.125706] bridge0: port 1(bridge_slave_0) entered forwarding state [ 138.134559] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 138.146655] bridge0: port 2(bridge_slave_1) entered blocking state [ 138.153099] bridge0: port 2(bridge_slave_1) entered forwarding state [ 138.159845] bridge0: port 1(bridge_slave_0) entered blocking state [ 138.166238] bridge0: port 1(bridge_slave_0) entered forwarding state [ 138.177395] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 138.250496] bridge0: port 2(bridge_slave_1) entered blocking state [ 138.256906] bridge0: port 2(bridge_slave_1) entered forwarding state [ 138.263637] bridge0: port 1(bridge_slave_0) entered blocking state [ 138.270055] bridge0: port 1(bridge_slave_0) entered forwarding state [ 138.295519] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 138.309412] bridge0: port 2(bridge_slave_1) entered blocking state [ 138.315847] bridge0: port 2(bridge_slave_1) entered forwarding state [ 138.322566] bridge0: port 1(bridge_slave_0) entered blocking state [ 138.328940] bridge0: port 1(bridge_slave_0) entered forwarding state [ 138.349726] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 138.363549] bridge0: port 2(bridge_slave_1) entered blocking state [ 138.369970] bridge0: port 2(bridge_slave_1) entered forwarding state [ 138.376644] bridge0: port 1(bridge_slave_0) entered blocking state [ 138.383071] bridge0: port 1(bridge_slave_0) entered forwarding state [ 138.392363] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 138.411149] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 138.430182] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 138.449653] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 138.465748] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 138.473917] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 138.481577] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 140.881615] 8021q: adding VLAN 0 to HW filter on device bond0 [ 140.917943] 8021q: adding VLAN 0 to HW filter on device bond0 [ 140.956521] 8021q: adding VLAN 0 to HW filter on device bond0 [ 141.014053] 8021q: adding VLAN 0 to HW filter on device bond0 [ 141.125831] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 141.170407] 8021q: adding VLAN 0 to HW filter on device bond0 [ 141.180728] 8021q: adding VLAN 0 to HW filter on device bond0 [ 141.197143] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 141.211033] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 141.270200] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 141.403290] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 141.409554] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 141.418250] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 141.441418] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 141.468461] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 141.494159] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 141.506648] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 141.516152] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 141.527430] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 141.535275] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 141.543084] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 141.560560] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 141.592788] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 141.604545] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 141.703359] 8021q: adding VLAN 0 to HW filter on device team0 [ 141.723767] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 141.741364] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 141.748494] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 141.790936] 8021q: adding VLAN 0 to HW filter on device team0 [ 141.804564] 8021q: adding VLAN 0 to HW filter on device team0 [ 141.819966] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 141.833369] 8021q: adding VLAN 0 to HW filter on device team0 [ 141.842506] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 141.854176] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 142.036306] 8021q: adding VLAN 0 to HW filter on device team0 [ 142.100146] 8021q: adding VLAN 0 to HW filter on device team0 2018/10/20 15:12:36 executed programs: 6 2018/10/20 15:12:41 executed programs: 166 2018/10/20 15:12:46 executed programs: 305 2018/10/20 15:12:51 executed programs: 476 2018/10/20 15:12:56 executed programs: 633 [ 165.721858] ================================================================== [ 165.729807] BUG: KASAN: use-after-free in __lock_acquire+0x37c2/0x4ec0 [ 165.736476] Read of size 8 at addr ffff8801a93ad1d0 by task syz-executor4/10978 [ 165.743912] [ 165.743924] CPU: 1 PID: 10978 Comm: syz-executor4 Not tainted 4.19.0-rc8+ #293 [ 165.743928] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 165.743931] Call Trace: [ 165.743946] dump_stack+0x1c4/0x2b4 [ 165.743955] ? dump_stack_print_info.cold.2+0x52/0x52 [ 165.743964] ? printk+0xa7/0xcf [ 165.743973] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 165.743983] print_address_description.cold.8+0x9/0x1ff [ 165.743991] kasan_report.cold.9+0x242/0x309 [ 165.743999] ? __lock_acquire+0x37c2/0x4ec0 [ 165.744007] __asan_report_load8_noabort+0x14/0x20 [ 165.744014] __lock_acquire+0x37c2/0x4ec0 [ 165.744021] ? lockdep_hardirqs_on+0x421/0x5c0 [ 165.744029] ? trace_hardirqs_on+0xbd/0x310 [ 165.744035] ? kasan_check_read+0x11/0x20 [ 165.744044] ? finish_task_switch+0x1f5/0x900 [ 165.744051] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 165.744059] ? compat_start_thread+0x80/0x80 [ 165.744067] ? mark_held_locks+0x130/0x130 [ 165.744075] ? _raw_spin_unlock_irq+0x60/0x80 [ 165.744082] ? finish_task_switch+0x1f5/0x900 [ 165.744089] ? finish_task_switch+0x1b5/0x900 [ 165.744096] ? __switch_to_asm+0x34/0x70 [ 165.744104] ? preempt_notifier_register+0x200/0x200 [ 165.744110] ? __switch_to_asm+0x34/0x70 [ 165.744116] ? __switch_to_asm+0x34/0x70 [ 165.744122] ? __switch_to_asm+0x40/0x70 [ 165.744128] ? __switch_to_asm+0x34/0x70 [ 165.744150] ? __switch_to_asm+0x40/0x70 [ 165.744161] ? __switch_to_asm+0x34/0x70 [ 165.744172] ? __switch_to_asm+0x40/0x70 [ 165.744183] ? __switch_to_asm+0x34/0x70 [ 165.744195] ? __switch_to_asm+0x34/0x70 [ 165.744205] ? __switch_to_asm+0x40/0x70 [ 165.744222] ? __switch_to_asm+0x34/0x70 [ 165.744233] ? __switch_to_asm+0x40/0x70 [ 165.744244] ? __switch_to_asm+0x34/0x70 [ 165.753317] ? __switch_to_asm+0x40/0x70 [ 165.753333] ? __schedule+0x874/0x1ed0 [ 165.753350] ? __sched_text_start+0x8/0x8 [ 165.753364] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 165.753379] ? lockdep_hardirqs_on+0x19e/0x5c0 [ 165.753396] ? retint_kernel+0x2d/0x2d [ 165.854323] ? trace_hardirqs_on_caller+0xc0/0x310 [ 165.854340] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 165.854359] ? mark_held_locks+0xc7/0x130 [ 165.867561] lock_acquire+0x1ed/0x520 [ 165.867576] ? vhost_transport_send_pkt+0x12e/0x380 [ 165.867592] ? lock_release+0x970/0x970 [ 165.867606] ? preempt_schedule+0x4d/0x60 [ 165.867622] ? ___preempt_schedule+0x16/0x18 [ 165.867640] ? __local_bh_enable_ip+0x1a3/0x260 [ 165.867657] _raw_spin_lock_bh+0x31/0x40 [ 165.981009] ? vhost_transport_send_pkt+0x12e/0x380 [ 165.986018] vhost_transport_send_pkt+0x12e/0x380 [ 165.990862] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 165.996387] ? vhost_vsock_dev_open+0x5a0/0x5a0 [ 166.001070] ? virtio_transport_send_pkt_info+0x2e7/0x460 [ 166.006620] ? __local_bh_enable_ip+0x160/0x260 [ 166.011288] virtio_transport_send_pkt_info+0x31d/0x460 [ 166.016667] virtio_transport_connect+0x17c/0x220 [ 166.021523] ? virtio_transport_send_pkt_info+0x460/0x460 [ 166.027064] ? vsock_auto_bind+0xa9/0xe0 [ 166.031128] ? __local_bh_enable_ip+0x160/0x260 [ 166.035797] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 166.041319] vsock_stream_connect+0x4ed/0xe40 [ 166.045802] ? vsock_dgram_connect+0x500/0x500 [ 166.050372] ? finish_wait+0x430/0x430 [ 166.054247] ? aa_af_perm+0x5a0/0x5a0 [ 166.058045] ? apparmor_socket_connect+0xb6/0x160 [ 166.062887] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 166.068426] ? security_socket_connect+0x94/0xc0 [ 166.073198] __sys_connect+0x37d/0x4c0 [ 166.077069] ? __ia32_sys_accept+0xb0/0xb0 [ 166.081295] ? kasan_check_read+0x11/0x20 [ 166.085459] ? _copy_to_user+0xc8/0x110 [ 166.089420] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 166.094959] ? put_timespec64+0x10f/0x1b0 [ 166.099095] ? do_syscall_64+0x9a/0x820 [ 166.103053] ? do_syscall_64+0x9a/0x820 [ 166.107016] ? lockdep_hardirqs_on+0x421/0x5c0 [ 166.111583] ? trace_hardirqs_on+0xbd/0x310 [ 166.115896] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 166.121421] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.126777] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 166.132233] __x64_sys_connect+0x73/0xb0 [ 166.136294] do_syscall_64+0x1b9/0x820 [ 166.140180] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 166.145539] ? syscall_return_slowpath+0x5e0/0x5e0 [ 166.150466] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 166.155332] ? trace_hardirqs_on_caller+0x310/0x310 [ 166.160336] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 166.165337] ? prepare_exit_to_usermode+0x291/0x3b0 [ 166.170337] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 166.175177] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.180371] RIP: 0033:0x457569 [ 166.183570] 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 [ 166.202475] RSP: 002b:00007f5572f14c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 166.202490] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 166.202496] RDX: 0000000000000010 RSI: 0000000020000200 RDI: 0000000000000006 [ 166.202504] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 166.202511] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5572f156d4 [ 166.202520] R13: 00000000004bdb06 R14: 00000000004cc658 R15: 00000000ffffffff [ 166.202533] [ 166.202541] Allocated by task 10978: [ 166.202558] save_stack+0x43/0xd0 [ 166.202567] kasan_kmalloc+0xc7/0xe0 [ 166.202579] __kmalloc_node+0x47/0x70 [ 166.202592] kvmalloc_node+0xb9/0xf0 [ 166.202604] vhost_vsock_dev_open+0xa2/0x5a0 [ 166.202615] misc_open+0x3ca/0x560 [ 166.202626] chrdev_open+0x25a/0x710 [ 166.202643] do_dentry_open+0x499/0x1250 [ 166.224879] vfs_open+0xa0/0xd0 [ 166.224910] path_openat+0x12bf/0x5160 [ 166.224922] do_filp_open+0x255/0x380 [ 166.224934] do_sys_open+0x568/0x700 [ 166.224946] __x64_sys_openat+0x9d/0x100 [ 166.224959] do_syscall_64+0x1b9/0x820 [ 166.224973] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.224976] [ 166.224982] Freed by task 10974: [ 166.224998] save_stack+0x43/0xd0 [ 166.318412] __kasan_slab_free+0x102/0x150 [ 166.322639] kasan_slab_free+0xe/0x10 [ 166.326445] kfree+0xcf/0x230 [ 166.329552] kvfree+0x61/0x70 [ 166.329565] vhost_vsock_dev_release+0x4f4/0x720 [ 166.329574] __fput+0x385/0xa30 [ 166.329583] ____fput+0x15/0x20 [ 166.329601] task_work_run+0x1e8/0x2a0 [ 166.337444] exit_to_usermode_loop+0x318/0x380 [ 166.337457] do_syscall_64+0x6be/0x820 [ 166.337471] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.337475] [ 166.337486] The buggy address belongs to the object at ffff8801a93a44c0 [ 166.337486] which belongs to the cache kmalloc-65536 of size 65536 [ 166.337498] The buggy address is located 36112 bytes inside of [ 166.337498] 65536-byte region [ffff8801a93a44c0, ffff8801a93b44c0) [ 166.337501] The buggy address belongs to the page: [ 166.337513] page:ffffea0006a4e800 count:1 mapcount:0 mapping:ffff8801da802500 index:0x0 compound_mapcount: 0 [ 166.337534] flags: 0x2fffc0000008100(slab|head) [ 166.384646] kobject: 'loop0' (0000000014267a7b): kobject_uevent_env [ 166.388397] raw: 02fffc0000008100 ffffea0006a45008 ffffea0006a4a808 ffff8801da802500 [ 166.388411] raw: 0000000000000000 ffff8801a93a44c0 0000000100000001 0000000000000000 [ 166.388417] page dumped because: kasan: bad access detected [ 166.388420] [ 166.388424] Memory state around the buggy address: [ 166.388437] ffff8801a93ad080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 166.397533] kobject: 'loop0' (0000000014267a7b): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 166.403313] ffff8801a93ad100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 166.403324] >ffff8801a93ad180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 166.403329] ^ [ 166.403339] ffff8801a93ad200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 166.403350] ffff8801a93ad280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 166.403354] ================================================================== [ 166.403359] Disabling lock debugging due to kernel taint [ 166.403366] Kernel panic - not syncing: panic_on_warn set ... [ 166.403366] [ 166.403382] CPU: 1 PID: 10978 Comm: syz-executor4 Tainted: G B 4.19.0-rc8+ #293 [ 166.403388] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 166.403392] Call Trace: [ 166.403413] dump_stack+0x1c4/0x2b4 [ 166.403430] ? dump_stack_print_info.cold.2+0x52/0x52 [ 166.403450] ? lock_downgrade+0x900/0x900 [ 166.517197] kobject: 'loop1' (00000000b2cf6858): kobject_uevent_env [ 166.523333] panic+0x238/0x4e7 [ 166.523347] ? add_taint.cold.5+0x16/0x16 [ 166.523360] ? add_taint.cold.5+0x5/0x16 [ 166.523373] ? trace_hardirqs_off+0xaf/0x310 [ 166.523392] kasan_end_report+0x47/0x4f [ 166.538940] kobject: 'loop1' (00000000b2cf6858): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 166.544120] kasan_report.cold.9+0x76/0x309 [ 166.544145] ? __lock_acquire+0x37c2/0x4ec0 [ 166.544160] __asan_report_load8_noabort+0x14/0x20 [ 166.544173] __lock_acquire+0x37c2/0x4ec0 [ 166.544184] ? lockdep_hardirqs_on+0x421/0x5c0 [ 166.544199] ? trace_hardirqs_on+0xbd/0x310 [ 166.544215] ? kasan_check_read+0x11/0x20 [ 166.614749] ? finish_task_switch+0x1f5/0x900 [ 166.619236] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 166.624678] ? compat_start_thread+0x80/0x80 [ 166.629075] ? mark_held_locks+0x130/0x130 [ 166.633295] ? _raw_spin_unlock_irq+0x60/0x80 [ 166.637778] ? finish_task_switch+0x1f5/0x900 [ 166.642260] ? finish_task_switch+0x1b5/0x900 [ 166.646742] ? __switch_to_asm+0x34/0x70 [ 166.650805] ? preempt_notifier_register+0x200/0x200 [ 166.655911] ? __switch_to_asm+0x34/0x70 [ 166.659958] ? __switch_to_asm+0x34/0x70 [ 166.664006] ? __switch_to_asm+0x40/0x70 [ 166.668051] ? __switch_to_asm+0x34/0x70 [ 166.672093] ? __switch_to_asm+0x40/0x70 [ 166.676151] ? __switch_to_asm+0x34/0x70 [ 166.680204] ? __switch_to_asm+0x40/0x70 [ 166.684264] ? __switch_to_asm+0x34/0x70 [ 166.688340] ? __switch_to_asm+0x34/0x70 [ 166.692439] ? __switch_to_asm+0x40/0x70 [ 166.693202] kobject: 'loop1' (00000000b2cf6858): kobject_uevent_env [ 166.696509] ? __switch_to_asm+0x34/0x70 [ 166.696522] ? __switch_to_asm+0x40/0x70 [ 166.696533] ? __switch_to_asm+0x34/0x70 [ 166.696544] ? __switch_to_asm+0x40/0x70 [ 166.696564] ? __schedule+0x874/0x1ed0 [ 166.707848] kobject: 'loop1' (00000000b2cf6858): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 166.711085] ? __sched_text_start+0x8/0x8 [ 166.711101] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 166.711117] ? lockdep_hardirqs_on+0x19e/0x5c0 [ 166.711129] ? retint_kernel+0x2d/0x2d [ 166.711160] ? trace_hardirqs_on_caller+0xc0/0x310 [ 166.754742] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 166.759494] ? mark_held_locks+0xc7/0x130 [ 166.763627] lock_acquire+0x1ed/0x520 [ 166.767414] ? vhost_transport_send_pkt+0x12e/0x380 [ 166.772427] ? lock_release+0x970/0x970 [ 166.776428] ? preempt_schedule+0x4d/0x60 [ 166.780562] ? ___preempt_schedule+0x16/0x18 [ 166.784959] ? __local_bh_enable_ip+0x1a3/0x260 [ 166.789635] _raw_spin_lock_bh+0x31/0x40 [ 166.793693] ? vhost_transport_send_pkt+0x12e/0x380 [ 166.798699] vhost_transport_send_pkt+0x12e/0x380 [ 166.803524] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 166.809041] ? vhost_vsock_dev_open+0x5a0/0x5a0 [ 166.813703] ? virtio_transport_send_pkt_info+0x2e7/0x460 [ 166.819252] ? __local_bh_enable_ip+0x160/0x260 [ 166.823922] virtio_transport_send_pkt_info+0x31d/0x460 [ 166.829281] virtio_transport_connect+0x17c/0x220 [ 166.834122] ? virtio_transport_send_pkt_info+0x460/0x460 [ 166.839652] ? vsock_auto_bind+0xa9/0xe0 [ 166.843713] ? __local_bh_enable_ip+0x160/0x260 [ 166.848374] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 166.853906] vsock_stream_connect+0x4ed/0xe40 [ 166.858388] ? vsock_dgram_connect+0x500/0x500 [ 166.862958] ? finish_wait+0x430/0x430 [ 166.866832] ? aa_af_perm+0x5a0/0x5a0 [ 166.870621] ? apparmor_socket_connect+0xb6/0x160 [ 166.875447] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 166.880983] ? security_socket_connect+0x94/0xc0 [ 166.885746] __sys_connect+0x37d/0x4c0 [ 166.889643] ? __ia32_sys_accept+0xb0/0xb0 [ 166.892760] kobject: 'loop1' (00000000b2cf6858): kobject_uevent_env [ 166.893881] ? kasan_check_read+0x11/0x20 [ 166.893902] ? _copy_to_user+0xc8/0x110 [ 166.893922] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 166.902265] kobject: 'loop1' (00000000b2cf6858): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 166.904467] ? put_timespec64+0x10f/0x1b0 [ 166.904485] ? do_syscall_64+0x9a/0x820 [ 166.904503] ? do_syscall_64+0x9a/0x820 [ 166.935434] ? lockdep_hardirqs_on+0x421/0x5c0 [ 166.940023] ? trace_hardirqs_on+0xbd/0x310 [ 166.944354] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 166.949890] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.955245] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 166.960682] __x64_sys_connect+0x73/0xb0 [ 166.964733] do_syscall_64+0x1b9/0x820 [ 166.968605] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 166.973964] ? syscall_return_slowpath+0x5e0/0x5e0 [ 166.978876] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 166.983726] ? trace_hardirqs_on_caller+0x310/0x310 [ 166.988740] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 166.993748] ? prepare_exit_to_usermode+0x291/0x3b0 [ 166.998761] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 167.003590] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 167.008760] RIP: 0033:0x457569 [ 167.011948] 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 [ 167.030834] RSP: 002b:00007f5572f14c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 167.038524] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 167.045775] RDX: 0000000000000010 RSI: 0000000020000200 RDI: 0000000000000006 [ 167.053028] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 167.060279] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5572f156d4 [ 167.067530] R13: 00000000004bdb06 R14: 00000000004cc658 R15: 00000000ffffffff [ 167.075673] Kernel Offset: disabled [ 167.079297] Rebooting in 86400 seconds..