[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.101' (ECDSA) to the list of known hosts. 2020/09/04 04:06:06 parsed 1 programs 2020/09/04 04:06:07 executed programs: 0 syzkaller login: [ 1052.421960] audit: type=1400 audit(1599192367.307:8): avc: denied { execmem } for pid=6502 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 1053.545194] IPVS: ftp: loaded support on port[0] = 21 [ 1053.665258] chnl_net:caif_netlink_parms(): no params data found [ 1053.767798] bridge0: port 1(bridge_slave_0) entered blocking state [ 1053.774465] bridge0: port 1(bridge_slave_0) entered disabled state [ 1053.782189] device bridge_slave_0 entered promiscuous mode [ 1053.791507] bridge0: port 2(bridge_slave_1) entered blocking state [ 1053.797854] bridge0: port 2(bridge_slave_1) entered disabled state [ 1053.805701] device bridge_slave_1 entered promiscuous mode [ 1053.822353] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 1053.831104] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 1053.848171] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 1053.855948] team0: Port device team_slave_0 added [ 1053.861712] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 1053.869098] team0: Port device team_slave_1 added [ 1053.883554] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1053.889824] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1053.915072] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1053.926266] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1053.933182] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1053.959472] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1053.970343] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 1053.977628] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 1053.997068] device hsr_slave_0 entered promiscuous mode [ 1054.003019] device hsr_slave_1 entered promiscuous mode [ 1054.009406] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 1054.016404] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 1054.081300] bridge0: port 2(bridge_slave_1) entered blocking state [ 1054.087691] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1054.094521] bridge0: port 1(bridge_slave_0) entered blocking state [ 1054.100926] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1054.132849] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 1054.140132] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1054.147762] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 1054.156830] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1054.166255] bridge0: port 1(bridge_slave_0) entered disabled state [ 1054.173421] bridge0: port 2(bridge_slave_1) entered disabled state [ 1054.180805] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1054.191962] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 1054.198010] 8021q: adding VLAN 0 to HW filter on device team0 [ 1054.206950] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1054.214999] bridge0: port 1(bridge_slave_0) entered blocking state [ 1054.221376] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1054.231155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1054.239204] bridge0: port 2(bridge_slave_1) entered blocking state [ 1054.245546] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1054.259753] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1054.267733] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1054.276929] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1054.290261] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 1054.300136] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 1054.311223] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 1054.317520] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1054.325870] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1054.334562] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1054.347098] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 1054.354435] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1054.361215] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1054.372236] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1054.384230] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 1054.394736] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1054.425436] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 1054.433766] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 1054.441104] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 1054.450571] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1054.457906] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1054.465280] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1054.473887] device veth0_vlan entered promiscuous mode [ 1054.482727] device veth1_vlan entered promiscuous mode [ 1054.488705] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 1054.496838] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 1054.509243] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 1054.518155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1054.526136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1054.533971] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1054.542875] device veth0_macvtap entered promiscuous mode [ 1054.550421] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 1054.558898] device veth1_macvtap entered promiscuous mode [ 1054.567007] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 1054.576781] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 1054.587863] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1054.594952] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1054.603320] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1054.613488] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1054.620359] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1055.599369] Bluetooth: hci0: command 0x0409 tx timeout 2020/09/04 04:06:12 executed programs: 168 [ 1057.668516] Bluetooth: hci0: command 0x041b tx timeout [ 1059.748039] Bluetooth: hci0: command 0x040f tx timeout [ 1061.827788] Bluetooth: hci0: command 0x0419 tx timeout 2020/09/04 04:06:17 executed programs: 466 2020/09/04 04:06:22 executed programs: 774 2020/09/04 04:06:27 executed programs: 1086 2020/09/04 04:06:32 executed programs: 1400 2020/09/04 04:06:37 executed programs: 1706 2020/09/04 04:06:42 executed programs: 2012 2020/09/04 04:06:47 executed programs: 2310 2020/09/04 04:06:52 executed programs: 2804 2020/09/04 04:06:57 executed programs: 3392 2020/09/04 04:07:02 executed programs: 3991 2020/09/04 04:07:07 executed programs: 4614 2020/09/04 04:07:12 executed programs: 5231 2020/09/04 04:07:17 executed programs: 5864 2020/09/04 04:07:22 executed programs: 6487 2020/09/04 04:07:27 executed programs: 7105 2020/09/04 04:07:32 executed programs: 7720 2020/09/04 04:07:37 executed programs: 8341 [ 1145.979816] NOHZ: local_softirq_pending 08 [ 1145.984104] NOHZ: local_softirq_pending 08 2020/09/04 04:07:42 executed programs: 8966 2020/09/04 04:07:47 executed programs: 9593 2020/09/04 04:07:52 executed programs: 10209 2020/09/04 04:07:57 executed programs: 10825 [ 1166.468506] NOHZ: local_softirq_pending 08 2020/09/04 04:08:02 executed programs: 11442 2020/09/04 04:08:07 executed programs: 12004 2020/09/04 04:08:12 executed programs: 12566 [ 1180.055691] Bluetooth: hci0: command 0x0406 tx timeout 2020/09/04 04:08:17 executed programs: 13137 [ 1183.549476] ------------[ cut here ]------------ [ 1183.555071] ODEBUG: free active (active state 1) object type: rcu_head hint: (null) [ 1183.563928] WARNING: CPU: 0 PID: 16649 at lib/debugobjects.c:325 debug_print_object+0x160/0x250 [ 1183.572777] Kernel panic - not syncing: panic_on_warn set ... [ 1183.572777] [ 1183.580121] CPU: 0 PID: 16649 Comm: syz-executor.0 Not tainted 4.19.143-syzkaller #0 [ 1183.587988] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1183.597313] Call Trace: [ 1183.599876] dump_stack+0x1fc/0x2fe [ 1183.603481] panic+0x26a/0x50e [ 1183.606650] ? __warn_printk+0xf3/0xf3 [ 1183.610512] ? debug_print_object+0x160/0x250 [ 1183.614999] ? __probe_kernel_read+0x16c/0x1b0 [ 1183.619570] ? __warn.cold+0x5/0x61 [ 1183.623170] ? __warn+0xe4/0x200 [ 1183.626511] ? debug_print_object+0x160/0x250 [ 1183.630977] __warn.cold+0x20/0x61 [ 1183.634527] ? debug_print_object+0x160/0x250 [ 1183.639043] report_bug+0x262/0x2b0 [ 1183.642681] do_error_trap+0x1d7/0x310 [ 1183.646543] ? math_error+0x310/0x310 [ 1183.650318] ? irq_work_claim+0xa6/0xc0 [ 1183.654264] ? irq_work_queue+0x29/0x80 [ 1183.658215] ? wake_up_klogd.part.0+0x8c/0xc0 [ 1183.662684] ? trace_hardirqs_off_caller+0x69/0x210 [ 1183.667678] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 1183.672497] invalid_op+0x14/0x20 [ 1183.675926] RIP: 0010:debug_print_object+0x160/0x250 [ 1183.681001] Code: dd 40 1b cb 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd 40 1b cb 87 48 c7 c7 c0 10 cb 87 e8 bb f0 dc fd <0f> 0b 83 05 43 01 4e 06 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 [ 1183.699878] RSP: 0018:ffff88808f53fd98 EFLAGS: 00010086 [ 1183.705212] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 1183.712455] RDX: 0000000000000000 RSI: ffffffff8154d001 RDI: ffffed1011ea7fa5 [ 1183.719818] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ 1183.727069] R10: 0000000000000005 R11: ffffffff8ad3801b R12: ffffffff88d93700 [ 1183.734311] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 1183.741560] ? vprintk_func+0x81/0x17e [ 1183.745423] ? debug_print_object+0x160/0x250 [ 1183.749933] debug_check_no_obj_freed+0x271/0x482 [ 1183.754752] kmem_cache_free+0xff/0x260 [ 1183.758744] task_work_run+0x148/0x1c0 [ 1183.762608] exit_to_usermode_loop+0x251/0x2a0 [ 1183.767167] do_syscall_64+0x538/0x620 [ 1183.771030] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1183.776191] RIP: 0033:0x45d5b9 [ 1183.779358] Code: 5d b4 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 1183.798229] RSP: 002b:00007f3c511aec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9 [ 1183.805909] RAX: 0000000000000000 RBX: 0000000000002ac0 RCX: 000000000045d5b9 [ 1183.813153] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000005 [ 1183.820483] RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000 [ 1183.827725] R10: 0000000020000100 R11: 0000000000000246 R12: 000000000118cf4c [ 1183.834969] R13: 00007fff27b0030f R14: 00007f3c511af9c0 R15: 000000000118cf4c [ 1183.842227] [ 1183.842230] ====================================================== [ 1183.842233] WARNING: possible circular locking dependency detected [ 1183.842235] 4.19.143-syzkaller #0 Not tainted [ 1183.842238] ------------------------------------------------------ [ 1183.842241] syz-executor.0/16649 is trying to acquire lock: [ 1183.842243] 00000000ede76640 ((console_sem).lock){-...}, at: down_trylock+0xe/0x60 [ 1183.842250] [ 1183.842252] but task is already holding lock: [ 1183.842254] 0000000064b08f20 (&obj_hash[i].lock){-.-.}, at: debug_check_no_obj_freed+0xb5/0x482 [ 1183.842262] [ 1183.842264] which lock already depends on the new lock. [ 1183.842265] [ 1183.842267] [ 1183.842269] the existing dependency chain (in reverse order) is: [ 1183.842270] [ 1183.842272] -> #5 (&obj_hash[i].lock){-.-.}: [ 1183.842279] debug_object_activate+0x12f/0x450 [ 1183.842281] enqueue_hrtimer+0x27/0x3d0 [ 1183.842284] hrtimer_start_range_ns+0x5a1/0xc10 [ 1183.842286] watchdog_enable+0x13b/0x1f0 [ 1183.842288] softlockup_start_fn+0x11/0x20 [ 1183.842290] smp_call_on_cpu_callback+0xde/0x1f0 [ 1183.842293] process_one_work+0x864/0x1570 [ 1183.842295] worker_thread+0x64c/0x1130 [ 1183.842297] kthread+0x33f/0x460 [ 1183.842299] ret_from_fork+0x24/0x30 [ 1183.842300] [ 1183.842301] -> #4 (hrtimer_bases.lock){-.-.}: [ 1183.842308] hrtimer_start_range_ns+0xe6/0xc10 [ 1183.842310] enqueue_task_rt+0x5a4/0xea0 [ 1183.842313] __sched_setscheduler.constprop.0+0xd9c/0x20a0 [ 1183.842315] sched_setscheduler+0xef/0x170 [ 1183.842317] watchdog_dev_init+0xdd/0x1ae [ 1183.842319] watchdog_init+0x14/0x17a [ 1183.842322] do_one_initcall+0xf1/0x734 [ 1183.842324] kernel_init_freeable+0x9ab/0xa9d [ 1183.842326] kernel_init+0xd/0x1bd [ 1183.842328] ret_from_fork+0x24/0x30 [ 1183.842329] [ 1183.842330] -> #3 (&rt_b->rt_runtime_lock){-...}: [ 1183.842337] rq_online_rt+0xaf/0x390 [ 1183.842340] set_rq_online.part.0+0xe0/0x130 [ 1183.842342] sched_cpu_activate+0x172/0x280 [ 1183.842344] cpuhp_invoke_callback+0x201/0x1b80 [ 1183.842346] cpuhp_thread_fun+0x467/0x850 [ 1183.842348] smpboot_thread_fn+0x655/0x9e0 [ 1183.842350] kthread+0x33f/0x460 [ 1183.842352] ret_from_fork+0x24/0x30 [ 1183.842353] [ 1183.842355] -> #2 (&rq->lock){-.-.}: [ 1183.842361] task_fork_fair+0x6a/0x4c0 [ 1183.842363] sched_fork+0x3d5/0xb70 [ 1183.842366] copy_process.part.0+0x188b/0x7f40 [ 1183.842368] _do_fork+0x22f/0xf30 [ 1183.842370] kernel_thread+0x2f/0x40 [ 1183.842372] rest_init+0x1f/0x323 [ 1183.842374] start_kernel+0x8d6/0x911 [ 1183.842376] secondary_startup_64+0xa4/0xb0 [ 1183.842377] [ 1183.842378] -> #1 (&p->pi_lock){-.-.}: [ 1183.842385] try_to_wake_up+0x7b/0x1050 [ 1183.842387] up+0x75/0xb0 [ 1183.842389] __up_console_sem+0xb3/0x1c0 [ 1183.842391] console_unlock+0x633/0x1110 [ 1183.842393] vprintk_emit+0x2d1/0x740 [ 1183.842395] printk_emit+0xc0/0xfc [ 1183.842397] devkmsg_write.cold+0x72/0xc2 [ 1183.842400] do_iter_readv_writev+0x668/0x790 [ 1183.842402] do_iter_write+0x182/0x5d0 [ 1183.842404] vfs_writev+0x153/0x2e0 [ 1183.842406] do_writev+0x136/0x330 [ 1183.842408] do_syscall_64+0xf9/0x620 [ 1183.842410] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1183.842411] [ 1183.842413] -> #0 ((console_sem).lock){-...}: [ 1183.842420] _raw_spin_lock_irqsave+0x8c/0xc0 [ 1183.842422] down_trylock+0xe/0x60 [ 1183.842424] __down_trylock_console_sem+0xa3/0x210 [ 1183.842426] vprintk_emit+0x283/0x740 [ 1183.842428] vprintk_func+0x79/0x17e [ 1183.842430] printk+0xba/0xed [ 1183.842432] __warn_printk+0x9b/0xf3 [ 1183.842434] debug_print_object+0x160/0x250 [ 1183.842437] debug_check_no_obj_freed+0x271/0x482 [ 1183.842439] kmem_cache_free+0xff/0x260 [ 1183.842441] task_work_run+0x148/0x1c0 [ 1183.842443] exit_to_usermode_loop+0x251/0x2a0 [ 1183.842445] do_syscall_64+0x538/0x620 [ 1183.842448] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1183.842449] [ 1183.842451] other info that might help us debug this: [ 1183.842453] [ 1183.842454] Chain exists of: [ 1183.842455] (console_sem).lock --> hrtimer_bases.lock --> &obj_hash[i].lock [ 1183.842465] [ 1183.842467] Possible unsafe locking scenario: [ 1183.842468] [ 1183.842470] CPU0 CPU1 [ 1183.842472] ---- ---- [ 1183.842473] lock(&obj_hash[i].lock); [ 1183.842478] lock(hrtimer_bases.lock); [ 1183.842483] lock(&obj_hash[i].lock); [ 1183.842487] lock((console_sem).lock); [ 1183.842491] [ 1183.842493] *** DEADLOCK *** [ 1183.842494] [ 1183.842496] 1 lock held by syz-executor.0/16649: [ 1183.842497] #0: 0000000064b08f20 (&obj_hash[i].lock){-.-.}, at: debug_check_no_obj_freed+0xb5/0x482 [ 1183.842506] [ 1183.842508] stack backtrace: [ 1183.842511] CPU: 0 PID: 16649 Comm: syz-executor.0 Not tainted 4.19.143-syzkaller #0 [ 1183.842515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1183.842517] Call Trace: [ 1183.842519] dump_stack+0x1fc/0x2fe [ 1183.842522] print_circular_bug.constprop.0.cold+0x2d7/0x41e [ 1183.842524] __lock_acquire+0x30c9/0x3ff0 [ 1183.842526] ? format_decode+0x230/0xad0 [ 1183.842528] ? mark_held_locks+0xf0/0xf0 [ 1183.842530] ? enable_ptr_key_workfn+0x30/0x30 [ 1183.842532] ? memcpy+0x35/0x50 [ 1183.842534] ? kvm_sched_clock_read+0x14/0x40 [ 1183.842536] ? sched_clock+0x2a/0x40 [ 1183.842539] ? sched_clock_cpu+0x18/0x1b0 [ 1183.842541] lock_acquire+0x170/0x3c0 [ 1183.842543] ? down_trylock+0xe/0x60 [ 1183.842545] ? vprintk_func+0x79/0x17e [ 1183.842547] _raw_spin_lock_irqsave+0x8c/0xc0 [ 1183.842549] ? down_trylock+0xe/0x60 [ 1183.842551] down_trylock+0xe/0x60 [ 1183.842553] ? vprintk_func+0x79/0x17e [ 1183.842555] ? vprintk_func+0x79/0x17e [ 1183.842557] __down_trylock_console_sem+0xa3/0x210 [ 1183.842559] vprintk_emit+0x283/0x740 [ 1183.842561] vprintk_func+0x79/0x17e [ 1183.842563] ? lock_downgrade+0x720/0x720 [ 1183.842565] printk+0xba/0xed [ 1183.842567] ? log_store.cold+0x16/0x16 [ 1183.842570] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 1183.842572] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 1183.842574] ? debug_object_active_state+0x254/0x330 [ 1183.842576] ? __warn_printk+0x8f/0xf3 [ 1183.842578] __warn_printk+0x9b/0xf3 [ 1183.842580] ? add_taint.cold+0x16/0x16 [ 1183.842583] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 1183.842585] ? lock_acquire+0x170/0x3c0 [ 1183.842587] debug_print_object+0x160/0x250 [ 1183.842590] debug_check_no_obj_freed+0x271/0x482 [ 1183.842592] kmem_cache_free+0xff/0x260 [ 1183.842594] task_work_run+0x148/0x1c0 [ 1183.842596] exit_to_usermode_loop+0x251/0x2a0 [ 1183.842598] do_syscall_64+0x538/0x620 [ 1183.842601] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1183.842602] RIP: 0033:0x45d5b9 [ 1183.842610] Code: 5d b4 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 1183.842612] RSP: 002b:00007f3c511aec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9 [ 1183.842618] RAX: 0000000000000000 RBX: 0000000000002ac0 RCX: 000000000045d5b9 [ 1183.842621] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000005 [ 1183.842624] RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000 [ 1183.842627] R10: 0000000020000100 R11: 0000000000000246 R12: 000000000118cf4c [ 1183.842630] R13: 00007fff27b0030f R14: 00007f3c511af9c0 R15: 000000000118cf4c [ 1183.844012] Kernel Offset: disabled [ 1184.568244] Rebooting in 86400 seconds..