[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 42.006835][ T25] audit: type=1800 audit(1575404224.616:25): pid=8005 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 42.045374][ T25] audit: type=1800 audit(1575404224.616:26): pid=8005 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.071888][ T25] audit: type=1800 audit(1575404224.616:27): pid=8005 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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 '10.128.0.178' (ECDSA) to the list of known hosts. 2019/12/03 20:17:15 fuzzer started 2019/12/03 20:17:17 dialing manager at 10.128.0.26:42111 2019/12/03 20:17:17 syscalls: 2689 2019/12/03 20:17:17 code coverage: enabled 2019/12/03 20:17:17 comparison tracing: enabled 2019/12/03 20:17:17 extra coverage: extra coverage is not supported by the kernel 2019/12/03 20:17:17 setuid sandbox: enabled 2019/12/03 20:17:17 namespace sandbox: enabled 2019/12/03 20:17:17 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 20:17:17 fault injection: enabled 2019/12/03 20:17:17 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 20:17:17 net packet injection: enabled 2019/12/03 20:17:17 net device setup: enabled 2019/12/03 20:17:17 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 20:17:17 devlink PCI setup: PCI device 0000:00:10.0 is not available 20:17:18 executing program 0: r0 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000000)=@newspdinfo={0x1c, 0x24, 0x12d, 0x0, 0x0, 0x0, [@ipv6_hthresh={0x8}]}, 0x1c}}, 0x0) 20:17:18 executing program 1: r0 = socket$inet6(0xa, 0x2, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r1, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) bind$inet6(r0, &(0x7f0000f13000)={0xa, 0x4e22}, 0x1c) connect$inet6(r0, &(0x7f0000000c40)={0xa, 0x0, 0x0, @dev, 0xe53d}, 0x1c) r4 = socket$netlink(0x10, 0x3, 0x8000000004) writev(r4, &(0x7f00000001c0)=[{&(0x7f0000000080)="580000001500add427323b472545b4560a117fffffff81004e22000d00ff0028925aa80020007b00090080000efffeffe809000000ff0000f03ac7103de50000ffffffffffffffffffe7ee00000000000000000200000000", 0x58}], 0x1) syzkaller login: [ 55.933394][ T8171] IPVS: ftp: loaded support on port[0] = 21 [ 56.036216][ T8171] chnl_net:caif_netlink_parms(): no params data found [ 56.077288][ T8171] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.085102][ T8171] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.094402][ T8171] device bridge_slave_0 entered promiscuous mode [ 56.102787][ T8171] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.111689][ T8171] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.119802][ T8171] device bridge_slave_1 entered promiscuous mode [ 56.142271][ T8171] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.154600][ T8171] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.176858][ T8174] IPVS: ftp: loaded support on port[0] = 21 [ 56.179053][ T8171] team0: Port device team_slave_0 added 20:17:18 executing program 2: r0 = socket$pppoe(0x18, 0x1, 0x0) connect$pppoe(r0, &(0x7f0000000140)={0x18, 0x0, {0x5, @empty, 'bridge0\x00'}}, 0x1e) sendmmsg(r0, &(0x7f0000003540)=[{{0x0, 0x0, &(0x7f0000000580)=[{0x0}, {&(0x7f00000000c0)="01", 0x1}], 0x2}}], 0x1, 0x0) [ 56.191188][ T8171] team0: Port device team_slave_1 added 20:17:19 executing program 3: mkdir(&(0x7f0000000240)='./file1\x00', 0x0) mkdir(&(0x7f0000000180)='./bus\x00', 0x0) creat(&(0x7f0000000040)='./bus/file0\x00', 0x0) mkdir(&(0x7f0000000280)='./file0\x00', 0x0) link(&(0x7f00000000c0)='./bus/file0\x00', &(0x7f0000000200)='./bus/file1\x00') mount$overlay(0x400000, &(0x7f0000000000)='./bus\x00', &(0x7f0000000400)='overlay\x00', 0x0, &(0x7f0000000300)=ANY=[@ANYBLOB='lowerdir=./bus,workdir=./file1,upperdir=./file0']) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) unlink(&(0x7f00000001c0)='./bus/file0\x00') [ 56.378062][ T8171] device hsr_slave_0 entered promiscuous mode [ 56.435623][ T8171] device hsr_slave_1 entered promiscuous mode [ 56.513075][ T8177] IPVS: ftp: loaded support on port[0] = 21 20:17:19 executing program 4: r0 = socket$netlink(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000180)='TIPCv2\x00') sendmsg$TIPC_NL_BEARER_ENABLE(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000100)={0x28, r1, 0x1, 0x0, 0x0, {}, [@TIPC_NLA_BEARER={0x14, 0x1, [@TIPC_NLA_BEARER_NAME={0x10, 0x1, @udp='\ndp:syz0@'}]}]}, 0x28}}, 0x0) [ 56.607169][ T8171] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.619041][ T8179] IPVS: ftp: loaded support on port[0] = 21 [ 56.637313][ T8171] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.703367][ T8171] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.747349][ T8171] netdevsim netdevsim0 netdevsim3: renamed from eth3 20:17:19 executing program 5: r0 = syz_open_dev$usbfs(&(0x7f0000000000)='/dev/bus/usb/00#/00#\x00', 0x77, 0x1) syz_open_procfs(0x0, 0x0) syz_open_procfs(0x0, 0x0) ioctl$USBDEVFS_CLAIMINTERFACE(r0, 0x8004550f, 0xffffffffffffffff) ioctl$USBDEVFS_CONTROL(0xffffffffffffffff, 0x5523, 0x0) [ 56.824604][ T8171] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.831835][ T8171] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.839918][ T8171] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.844651][ T8182] IPVS: ftp: loaded support on port[0] = 21 [ 56.847039][ T8171] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.865947][ T8174] chnl_net:caif_netlink_parms(): no params data found [ 56.956619][ T8174] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.963697][ T8174] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.974142][ T8174] device bridge_slave_0 entered promiscuous mode [ 56.983840][ T8174] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.993345][ T8174] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.001158][ T8174] device bridge_slave_1 entered promiscuous mode [ 57.082369][ T8185] IPVS: ftp: loaded support on port[0] = 21 [ 57.100665][ T8177] chnl_net:caif_netlink_parms(): no params data found [ 57.119701][ T43] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.138412][ T43] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.157852][ T8171] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.171833][ T8179] chnl_net:caif_netlink_parms(): no params data found [ 57.181562][ T8174] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.194960][ T8174] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.230029][ T8171] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.244808][ T8174] team0: Port device team_slave_0 added [ 57.254512][ T8174] team0: Port device team_slave_1 added [ 57.264214][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.272579][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.334867][ T8179] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.345171][ T8179] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.353150][ T8179] device bridge_slave_0 entered promiscuous mode [ 57.362494][ T8177] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.370036][ T8177] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.377990][ T8177] device bridge_slave_0 entered promiscuous mode [ 57.385088][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 57.394147][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.402508][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.409561][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.418044][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 57.426561][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.434795][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.441861][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.468661][ T8179] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.476538][ T8179] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.484088][ T8179] device bridge_slave_1 entered promiscuous mode [ 57.491545][ T8177] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.498903][ T8177] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.507166][ T8177] device bridge_slave_1 entered promiscuous mode [ 57.522741][ T8184] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 57.534625][ T8182] chnl_net:caif_netlink_parms(): no params data found [ 57.586950][ T8174] device hsr_slave_0 entered promiscuous mode [ 57.625946][ T8174] device hsr_slave_1 entered promiscuous mode [ 57.685860][ T8174] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.701942][ T8177] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.714082][ T8177] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.727617][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 57.749904][ T8179] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.762026][ T8179] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.783533][ T8177] team0: Port device team_slave_0 added [ 57.791650][ T8177] team0: Port device team_slave_1 added [ 57.820778][ T8179] team0: Port device team_slave_0 added [ 57.844507][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 57.853511][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.862500][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.871528][ T8179] team0: Port device team_slave_1 added [ 57.891753][ T8182] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.901992][ T8182] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.909800][ T8182] device bridge_slave_0 entered promiscuous mode [ 57.977996][ T8177] device hsr_slave_0 entered promiscuous mode [ 58.045872][ T8177] device hsr_slave_1 entered promiscuous mode [ 58.085553][ T8177] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.118865][ T8182] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.128440][ T8182] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.136393][ T8182] device bridge_slave_1 entered promiscuous mode [ 58.149997][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 58.158656][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.167117][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 58.175476][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.189844][ T8171] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 58.204769][ T8171] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.247586][ T8179] device hsr_slave_0 entered promiscuous mode [ 58.285574][ T8179] device hsr_slave_1 entered promiscuous mode [ 58.335526][ T8179] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.352506][ T8174] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 58.400493][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 58.409136][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.422187][ T8182] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.432167][ T8174] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 58.480361][ T8174] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 58.537360][ T8185] chnl_net:caif_netlink_parms(): no params data found [ 58.562850][ T8182] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.576599][ T8174] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 58.673020][ T8185] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.681026][ T8185] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.689293][ T8185] device bridge_slave_0 entered promiscuous mode [ 58.716242][ T8182] team0: Port device team_slave_0 added [ 58.724199][ T8182] team0: Port device team_slave_1 added [ 58.738612][ T8185] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.746237][ T8185] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.753773][ T8185] device bridge_slave_1 entered promiscuous mode [ 58.760753][ T8177] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 58.816833][ T8179] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 58.898759][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.906234][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.933623][ T8185] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.944376][ T8177] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 58.977604][ T8179] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 59.077163][ T8182] device hsr_slave_0 entered promiscuous mode [ 59.126377][ T8182] device hsr_slave_1 entered promiscuous mode [ 59.165475][ T8182] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.174137][ T8185] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.194216][ T8177] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 59.236736][ T8179] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 59.278741][ T8171] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.302338][ T8185] team0: Port device team_slave_0 added [ 59.308802][ T8177] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 59.390790][ T8179] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 59.455454][ T8185] team0: Port device team_slave_1 added [ 59.517520][ T8185] device hsr_slave_0 entered promiscuous mode [ 59.566577][ T8185] device hsr_slave_1 entered promiscuous mode [ 59.625847][ T8185] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.730946][ T8182] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 164.735276][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 164.742051][ C1] rcu: 1-...!: (10499 ticks this GP) idle=95e/1/0x4000000000000002 softirq=11336/11336 fqs=1 [ 164.752511][ C1] (t=10500 jiffies g=6085 q=150) [ 164.757524][ C1] rcu: rcu_preempt kthread starved for 10498 jiffies! g6085 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 164.770514][ C1] rcu: RCU grace-period kthread stack dump: [ 164.776386][ C1] rcu_preempt R running task 29104 10 2 0x80004000 [ 164.784285][ C1] Call Trace: [ 164.787580][ C1] __schedule+0x9a0/0xcc0 [ 164.791915][ C1] schedule+0x181/0x210 [ 164.796061][ C1] schedule_timeout+0x14f/0x240 [ 164.800900][ C1] ? run_local_timers+0x120/0x120 [ 164.805916][ C1] rcu_gp_kthread+0xed8/0x1770 [ 164.810678][ C1] kthread+0x332/0x350 [ 164.814729][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 164.819827][ C1] ? kthread_blkcg+0xe0/0xe0 [ 164.824408][ C1] ret_from_fork+0x24/0x30 [ 164.828825][ C1] NMI backtrace for cpu 1 [ 164.833146][ C1] CPU: 1 PID: 8177 Comm: syz-executor.2 Not tainted 5.4.0-syzkaller #0 [ 164.841360][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 164.851399][ C1] Call Trace: [ 164.854665][ C1] [ 164.857502][ C1] dump_stack+0x1fb/0x318 [ 164.861821][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 164.866662][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 164.872798][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 164.878853][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 164.884822][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 164.890785][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 164.895886][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 164.901070][ C1] ? trace_hardirqs_off+0x74/0x80 [ 164.906081][ C1] update_process_times+0x12d/0x180 [ 164.911267][ C1] tick_sched_timer+0x263/0x420 [ 164.916105][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 164.921634][ C1] __hrtimer_run_queues+0x403/0x840 [ 164.926830][ C1] hrtimer_interrupt+0x38c/0xda0 [ 164.931770][ C1] ? debug_smp_processor_id+0x9/0x20 [ 164.937121][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 164.942650][ C1] apic_timer_interrupt+0xf/0x20 [ 164.947566][ C1] [ 164.950492][ C1] RIP: 0010:mod_memcg_page_state+0x0/0x190 [ 164.956282][ C1] Code: 48 8b 3b e8 12 c1 5f 00 eb 0c e8 0b 29 2e 00 eb 05 e8 04 29 2e 00 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 44 00 00 <55> 48 89 e5 41 57 41 56 41 54 53 41 89 f6 48 89 fb e8 da 28 2e 00 [ 164.975880][ C1] RSP: 0018:ffffc90001e57a88 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 164.984275][ C1] RAX: 1ffff110119027a1 RBX: ffff88808c813d08 RCX: 0000000000000000 [ 164.992321][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea000297bdc0 [ 165.000274][ C1] RBP: ffffc90001e57ac8 R08: 000000000003a768 R09: ffffed101517df37 [ 165.008228][ C1] R10: ffffed101517df37 R11: 0000000000000000 R12: ffff88808c813da0 [ 165.016183][ C1] R13: dffffc0000000000 R14: 1ffff110119027b4 R15: ffff8880a8bef9a8 [ 165.024156][ C1] ? free_thread_stack+0x168/0x590 [ 165.029252][ C1] put_task_stack+0xa3/0x130 [ 165.033827][ C1] finish_task_switch+0x3f1/0x550 [ 165.038874][ C1] __schedule+0x9a8/0xcc0 [ 165.043197][ C1] ? ___preempt_schedule+0x16/0x18 [ 165.048294][ C1] preempt_schedule+0xdb/0x120 [ 165.053042][ C1] ___preempt_schedule+0x16/0x18 [ 165.057977][ C1] ? debug_object_activate+0x118/0x6f0 [ 165.063425][ C1] _raw_spin_unlock_irqrestore+0xcc/0xe0 [ 165.069041][ C1] debug_object_activate+0x118/0x6f0 [ 165.074409][ C1] ? __fput+0x740/0x740 [ 165.078552][ C1] __call_rcu+0x3d/0x670 [ 165.082779][ C1] ? percpu_counter_add_batch+0x153/0x170 [ 165.088570][ C1] call_rcu+0xb/0x10 [ 165.092447][ C1] __fput+0x581/0x740 [ 165.096425][ C1] ____fput+0x15/0x20 [ 165.100529][ C1] task_work_run+0x17e/0x1b0 [ 165.105131][ C1] prepare_exit_to_usermode+0x483/0x5b0 [ 165.110685][ C1] syscall_return_slowpath+0x113/0x4a0 [ 165.116136][ C1] do_syscall_64+0x11f/0x1c0 [ 165.120715][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 165.126593][ C1] RIP: 0033:0x45e433 [ 165.130475][ C1] Code: 48 89 ee 48 89 e7 e8 2c 1f fa ff 31 c0 48 89 e2 be 33 89 00 00 89 df e8 bb c0 ff ff 85 c0 78 17 48 63 fb b8 03 00 00 00 0f 05 <8b> 44 24 10 48 83 c4 38 5b 5d c3 66 90 48 c7 c2 d4 ff ff ff 48 63 [ 165.150068][ C1] RSP: 002b:00007ffd2758b630 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 165.158465][ C1] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 000000000045e433 [ 165.166422][ C1] RDX: 00007ffd2758b630 RSI: 0000000000008933 RDI: 0000000000000004 [ 165.174377][ C1] RBP: 00000000004bfb87 R08: 0000000000000008 R09: 0000000000000005 [ 165.182336][ C1] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000003 [ 165.190291][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffd2758b880