INFO: task kworker/0:1:9 blocked for more than 143 seconds.
Not tainted 6.10.0-rc7-syzkaller-00012-g34afb82a3c67 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1 state:D stack:26368 pid:9 tgid:9 ppid:2 flags:0x00004000
Workqueue: events drain_vmap_area_work
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
drain_vmap_area_work+0x17/0x40 mm/vmalloc.c:2322
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3248
process_scheduled_works kernel/workqueue.c:3329 [inline]
worker_thread+0x6c8/0xf30 kernel/workqueue.c:3409
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
Showing all locks held in the system:
3 locks held by kworker/0:1/9:
#0: ffff888015480948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223
#1: ffffc900000e7d80 (drain_vmap_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224
#2: ffffffff8dd2d168 (vmap_purge_lock){+.+.}-{3:3}, at: drain_vmap_area_work+0x17/0x40 mm/vmalloc.c:2322
3 locks held by kworker/u8:0/11:
#0: ffff88802a0f6148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223
#1: ffffc90000107d80 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224
#2: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4733
2 locks held by kworker/u8:1/12:
6 locks held by kworker/u8:2/29:
#0: ffff8880162d3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223
#1: ffffc90000a57d80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224
#2: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbb/0xbf0 net/core/net_namespace.c:594
#3: ffff8880252890e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#3: ffff8880252890e8 (&dev->mutex){....}-{3:3}, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline]
#3: ffff8880252890e8 (&dev->mutex){....}-{3:3}, at: devlink_pernet_pre_exit+0x12d/0x2b0 net/devlink/core.c:506
#4: ffff88802528c250 (&devlink->lock_key#7){+.+.}-{3:3}, at: devl_lock net/devlink/core.c:276 [inline]
#4: ffff88802528c250 (&devlink->lock_key#7){+.+.}-{3:3}, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline]
#4: ffff88802528c250 (&devlink->lock_key#7){+.+.}-{3:3}, at: devlink_pernet_pre_exit+0x137/0x2b0 net/devlink/core.c:506
#5: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdevice_notifier_net+0x1c/0xf0 net/core/dev.c:1913
1 lock held by khungtaskd/31:
#0: ffffffff8dbb1620 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8dbb1620 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8dbb1620 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
2 locks held by getty/4837:
#0: ffff88802af710a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2211
5 locks held by kworker/u9:2/5090:
#0: ffff888025385948 ((wq_completion)hci11){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223
#1: ffffc9000320fd80 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224
#2: ffff888050ca0d88 (&hdev->req_lock){+.+.}-{3:3}, at: hci_cmd_sync_work+0x170/0x410 net/bluetooth/hci_sync.c:322
#3: ffff888050ca0078 (&hdev->lock){+.+.}-{3:3}, at: hci_abort_conn_sync+0x150/0xb50 net/bluetooth/hci_sync.c:5444
#4: ffffffff8dbbcdb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x282/0x3b0 kernel/rcu/tree_exp.h:291
2 locks held by kworker/1:3/5092:
3 locks held by kworker/1:4/5135:
3 locks held by kworker/0:5/5137:
#0: ffff888015480948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223
#1: ffffc9000354fd80 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224
#2: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:276
3 locks held by kworker/0:6/5167:
#0: ffff888015480948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223
#1: ffffc90003c07d80 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224
#2: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104
6 locks held by kworker/1:7/5189:
4 locks held by syz.3.153/5888:
2 locks held by syz-executor/5895:
#0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504
#1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: cangw_pernet_exit_batch+0x15/0xa0 net/can/gw.c:1257
2 locks held by syz-executor/5897:
#0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504
#1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: cangw_pernet_exit_batch+0x15/0xa0 net/can/gw.c:1257
2 locks held by syz-executor/5899:
#0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504
#1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: cangw_pernet_exit_batch+0x15/0xa0 net/can/gw.c:1257
2 locks held by syz-executor/5903:
#0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504
#1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: mpls_net_exit+0x83/0x350 net/mpls/af_mpls.c:2708
2 locks held by kworker/u8:11/5911:
2 locks held by syz-executor/5923:
#0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504
#1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: setup_net+0x621/0xb40 net/core/net_namespace.c:365
2 locks held by syz-executor/5929:
#0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504
#1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: setup_net+0x621/0xb40 net/core/net_namespace.c:365
3 locks held by syz-executor/5930:
#0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504
#1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: setup_net+0x621/0xb40 net/core/net_namespace.c:365
#2: ffffffff8da555d0 (cpu_hotplug_lock){++++}-{0:0}, at: flush_all_backlogs net/core/dev.c:5984 [inline]
#2: ffffffff8da555d0 (cpu_hotplug_lock){++++}-{0:0}, at: unregister_netdevice_many_notify+0x531/0x19f0 net/core/dev.c:11201
2 locks held by syz-executor/5939:
#0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504
#1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x218/0x780 net/ipv4/ip_tunnel.c:1159
2 locks held by syz-executor/5940:
#0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504
#1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: wg_netns_pre_exit+0x1b/0x230 drivers/net/wireguard/device.c:414
2 locks held by syz-executor/5948:
#0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504
#1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: setup_net+0x621/0xb40 net/core/net_namespace.c:365
2 locks held by syz-executor/5955:
#0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504
#1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x218/0x780 net/ipv4/ip_tunnel.c:1159
2 locks held by syz-executor/5958:
#0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504
#1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x218/0x780 net/ipv4/ip_tunnel.c:1159
1 lock held by syz-executor/5964:
#0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6632
2 locks held by syz-executor/5968:
#0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504
#1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: register_nexthop_notifier+0x1b/0x70 net/ipv4/nexthop.c:3871
1 lock held by syz-executor/5978:
#0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6632
1 lock held by syz-executor/5985:
#0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6632
1 lock held by syz-executor/5988:
#0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6632
1 lock held by syz-executor/5994:
#0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6632
1 lock held by syz-executor/5995:
#0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6632
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 31 Comm: khungtaskd Not tainted 6.10.0-rc7-syzkaller-00012-g34afb82a3c67 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xf86/0x1240 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5888 Comm: syz.3.153 Not tainted 6.10.0-rc7-syzkaller-00012-g34afb82a3c67 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: be b0 01 00 00 e8 a0 ff ff ff 31 c0 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 65 48 8b 15 64 f4 75 7e 65 8b 05 65 f4 75 7e a9 00 01
RSP: 0018:ffffc90000a17a60 EFLAGS: 00000046
RAX: 0000000000000002 RBX: ffffc90000a17ae8 RCX: ffffffff813ce5be
RDX: ffff888027a1da00 RSI: 0000000000000004 RDI: 0000000000000001
RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000004
R10: 0000000000000001 R11: 0000000000000002 R12: ffffffff90fc596e
R13: ffffc90000a18cf8 R14: 0000000000000001 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000a000 CR3: 000000000d97a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
</NMI>
<IRQ>
unwind_next_frame+0x1b21/0x23a0 arch/x86/kernel/unwind_orc.c:648
arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:387
kmalloc_noprof include/linux/slab.h:660 [inline]
dummy_urb_enqueue+0x8d/0x8a0 drivers/usb/gadget/udc/dummy_hcd.c:1271
usb_hcd_submit_urb+0x2d1/0x2090 drivers/usb/core/hcd.c:1533
usb_submit_urb+0x87c/0x1730 drivers/usb/core/urb.c:581
ath9k_hif_usb_reg_in_cb+0x494/0x690 drivers/net/wireless/ath/ath9k/hif_usb.c:792
__usb_hcd_giveback_urb+0x389/0x6e0 drivers/usb/core/hcd.c:1650
usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734
dummy_timer+0x17f6/0x3900 drivers/usb/gadget/udc/dummy_hcd.c:1987
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1753
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1815
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x43/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:write_comp_data+0x18/0x90 kernel/kcov.c:236
Code: 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 49 89 d2 49 89 f8 49 89 f1 65 48 8b 15 1f fb 75 7e 65 8b 05 20 fb 75 7e <a9> 00 01 ff 00 74 0f f6 c4 01 74 59 8b 82 1c 16 00 00 85 c0 74 4f
RSP: 0018:ffffc90000a18610 EFLAGS: 00000246
RAX: 0000000000000102 RBX: ffffc90000a186e0 RCX: ffffffff813cd516
RDX: ffff888027a1da00 RSI: 0000000000000000 RDI: 0000000000000005
RBP: ffffc90000a18f00 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000002 R12: ffffc90000a186e8
R13: ffffc90000a186f0 R14: ffffc90000a11000 R15: 0000000000000002
on_stack arch/x86/include/asm/stacktrace.h:60 [inline]
stack_access_ok+0x96/0x270 arch/x86/kernel/unwind_orc.c:393
deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline]
unwind_next_frame+0x1b94/0x23a0 arch/x86/kernel/unwind_orc.c:648
arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579
poison_slab_object+0xf7/0x160 mm/kasan/common.c:240
__kasan_slab_free+0x32/0x50 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2196 [inline]
slab_free mm/slub.c:4438 [inline]
kmem_cache_free+0x12f/0x3a0 mm/slub.c:4513
kfree_skbmem+0x10e/0x200 net/core/skbuff.c:1131
__kfree_skb net/core/skbuff.c:1188 [inline]
kfree_skb_reason+0x138/0x210 net/core/skbuff.c:1223
kfree_skb include/linux/skbuff.h:1257 [inline]
ip6_mc_input+0x7ad/0xfd0 net/ipv6/ip6_input.c:589
dst_input include/net/dst.h:460 [inline]
dst_input include/net/dst.h:458 [inline]
ip6_rcv_finish net/ipv6/ip6_input.c:79 [inline]
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
ipv6_rcv+0x45a/0x680 net/ipv6/ip6_input.c:310
__netif_receive_skb_one_core+0x12e/0x1e0 net/core/dev.c:5625
__netif_receive_skb+0x1d/0x160 net/core/dev.c:5739
process_backlog+0x133/0x760 net/core/dev.c:6068
__napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6722
napi_poll net/core/dev.c:6791 [inline]
net_rx_action+0x9b6/0xf10 net/core/dev.c:6907
handle_softirqs+0x216/0x8f0 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu kernel/softirq.c:637 [inline]
irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 06 c8 80 f6 48 89 df e8 ee 44 81 f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 <bf> 01 00 00 00 e8 05 87 72 f6 65 8b 05 d6 d3 18 75 85 c0 74 16 5b
RSP: 0018:ffffc9000317f660 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffffffff8dbbce80 RCX: 1ffffffff284f65d
RDX: 0000000000000000 RSI: ffffffff8b2caf00 RDI: ffffffff8b8ff640
RBP: 0000000000000296 R08: 0000000000000001 R09: fffffbfff284ca5e
R10: ffffffff942652f7 R11: 0000000000000001 R12: 0000000000000246
R13: 0000000000000200 R14: ffffffff8fe46a04 R15: ffff88804114db88
rcu_read_unlock_special kernel/rcu/tree_plugin.h:681 [inline]
__rcu_read_unlock+0x2b4/0x580 kernel/rcu/tree_plugin.h:426
pte_unmap include/linux/pgtable.h:115 [inline]
zap_pte_range mm/memory.c:1676 [inline]
zap_pmd_range mm/memory.c:1724 [inline]
zap_pud_range mm/memory.c:1753 [inline]
zap_p4d_range mm/memory.c:1774 [inline]
unmap_page_range+0xbcc/0x3f20 mm/memory.c:1795
unmap_single_vma+0x194/0x2b0 mm/memory.c:1841
unmap_vmas+0x22f/0x490 mm/memory.c:1885
exit_mmap+0x1b8/0xb20 mm/mmap.c:3341
__mmput+0x12a/0x4d0 kernel/fork.c:1346
mmput+0x62/0x70 kernel/fork.c:1368
exit_mm kernel/exit.c:567 [inline]
do_exit+0x9b7/0x2ba0 kernel/exit.c:863
do_group_exit+0xd3/0x2a0 kernel/exit.c:1025
get_signal+0x2616/0x2710 kernel/signal.c:2909
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x14a/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f40eeb75bd9
Code: Unable to access opcode bytes at 0x7f40eeb75baf.
RSP: 002b:00007f40ef8d3048 EFLAGS: 00000246 ORIG_RAX: 00000000000000cb
RAX: 0000000000000000 RBX: 00007f40eed04038 RCX: 00007f40eeb75bd9
RDX: 0000000020000200 RSI: 0000000000000008 RDI: 0000000000000000
RBP: 00007f40eebe4e60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f40eed04038 R15: 00007ffeb5153ef8
</TASK>