==================================================================
BUG: KASAN: use-after-free in hlist_move_list include/linux/list.h:1014 [inline]
BUG: KASAN: use-after-free in collect_expired_timers kernel/time/timer.c:1576 [inline]
BUG: KASAN: use-after-free in __run_timers+0x32b/0x9a0 kernel/time/timer.c:1812
Write of size 8 at addr ffff88810e3cca00 by task syz.7.409/1817

CPU: 0 PID: 1817 Comm: syz.7.409 Not tainted 6.1.134-syzkaller-00039-g3c6d0251e1fb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <IRQ>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106
 print_address_description+0x71/0x210 mm/kasan/report.c:316
 print_report+0x4a/0x60 mm/kasan/report.c:427
 kasan_report+0x122/0x150 mm/kasan/report.c:531
 __asan_report_store8_noabort+0x17/0x20 mm/kasan/report_generic.c:356
 hlist_move_list include/linux/list.h:1014 [inline]
 collect_expired_timers kernel/time/timer.c:1576 [inline]
 __run_timers+0x32b/0x9a0 kernel/time/timer.c:1812
 run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1839
 handle_softirqs+0x1d7/0x600 kernel/softirq.c:624
 __do_softirq kernel/softirq.c:662 [inline]
 invoke_softirq kernel/softirq.c:479 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:711
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:723
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:update_stack_state+0x123/0x480 arch/x86/kernel/unwind_frame.c:-1
Code: ff ff 48 8d 53 18 48 8d 43 28 48 8d 73 20 48 89 b5 60 ff ff ff 4c 89 f6 48 c1 ee 03 48 89 b5 40 ff ff ff 48 89 8d 70 ff ff ff <48> c1 e9 03 48 89 8d 48 ff ff ff 48 89 95 58 ff ff ff 48 c1 ea 03
RSP: 0018:ffffc9000f77ebb8 EFLAGS: 00000a02
RAX: ffffc9000f77ed30 RBX: ffffc9000f77ed08 RCX: ffffc9000f77ed18
RDX: ffffc9000f77ed20 RSI: 1ffff92001eefda2 RDI: ffffc9000f77ed60
RBP: ffffc9000f77ec78 R08: ffffc9000f77edd0 R09: ffffc9000f77edc8
R10: 000000000000000e R11: 1ffff92001eefda1 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc9000f77ed10 R15: ffffc9000f77f9d0
 unwind_next_frame+0x3d5/0x700 arch/x86/kernel/unwind_frame.c:315
 arch_stack_walk+0x124/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x98/0xe0 kernel/stacktrace.c:122
 save_stack+0xf3/0x1e0 mm/page_owner.c:147
 __reset_page_owner+0x54/0x190 mm/page_owner.c:168
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1545 [inline]
 free_pcp_prepare mm/page_alloc.c:1619 [inline]
 free_unref_page_prepare+0x742/0x750 mm/page_alloc.c:3581
 free_unref_page_list+0xba/0x7c0 mm/page_alloc.c:3729
 release_pages+0xad1/0xb20 mm/swap.c:1043
 __pagevec_release+0x71/0xe0 mm/swap.c:1063
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 shmem_undo_range+0x51a/0x1470 mm/shmem.c:955
 shmem_truncate_range mm/shmem.c:1071 [inline]
 shmem_evict_inode+0x242/0xa10 mm/shmem.c:1180
 evict+0x493/0x890 fs/inode.c:705
 iput_final fs/inode.c:1834 [inline]
 iput+0x620/0x670 fs/inode.c:1860
 dentry_unlink_inode+0x33d/0x3f0 fs/dcache.c:405
 __dentry_kill+0x460/0x670 fs/dcache.c:611
 dentry_kill+0xc0/0x2a0 fs/dcache.c:-1
 dput+0x42/0x80 fs/dcache.c:918
 __fput+0x5be/0x8f0 fs/file_table.c:328
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x1db/0x240 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0xa1d/0x2650 kernel/exit.c:877
 do_group_exit+0x210/0x2d0 kernel/exit.c:1027
 get_signal+0x13b5/0x1520 kernel/signal.c:2889
 arch_do_signal_or_restart+0xb0/0x1030 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x7a/0xb0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ff827b8e969
Code: Unable to access opcode bytes at 0x7ff827b8e93f.
RSP: 002b:00007ff828a780e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007ff827db6088 RCX: 00007ff827b8e969
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff827db6088
RBP: 00007ff827db6080 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff827db608c
R13: 0000000000000000 R14: 00007ffdd23c6560 R15: 00007ffdd23c6648
 </TASK>

Allocated by task 1757:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_alloc_info+0x25/0x30 mm/kasan/generic.c:505
 ____kasan_kmalloc mm/kasan/common.c:379 [inline]
 __kasan_kmalloc+0x95/0xb0 mm/kasan/common.c:388
 kasan_kmalloc include/linux/kasan.h:212 [inline]
 __do_kmalloc_node mm/slab_common.c:938 [inline]
 __kmalloc+0xb1/0x1e0 mm/slab_common.c:951
 kmalloc include/linux/slab.h:568 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 hci_alloc_dev_priv+0x27/0x1bd0 net/bluetooth/hci_core.c:2435
 hci_alloc_dev include/net/bluetooth/hci_core.h:1484 [inline]
 hci_uart_register_dev drivers/bluetooth/hci_ldisc.c:636 [inline]
 hci_uart_set_proto drivers/bluetooth/hci_ldisc.c:712 [inline]
 hci_uart_tty_ioctl+0x3c8/0xa00 drivers/bluetooth/hci_ldisc.c:765
 tty_ioctl+0x8ef/0xc60 drivers/tty/tty_io.c:2785
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0x12f/0x1b0 fs/ioctl.c:856
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856
 x64_sys_call+0x58b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Freed by task 1766:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x31/0x50 mm/kasan/generic.c:516
 ____kasan_slab_free+0x132/0x180 mm/kasan/common.c:241
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:249
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1745 [inline]
 slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1771
 slab_free mm/slub.c:3686 [inline]
 __kmem_cache_free+0xb7/0x1b0 mm/slub.c:3702
 kfree+0x6f/0xf0 mm/slab_common.c:990
 hci_release_dev+0x13ad/0x1500 net/bluetooth/hci_core.c:2763
 bt_host_release+0x82/0x90 net/bluetooth/hci_sysfs.c:85
 device_release+0xa4/0x1d0 drivers/base/core.c:-1
 kobject_cleanup lib/kobject.c:681 [inline]
 kobject_release lib/kobject.c:712 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x19d/0x280 lib/kobject.c:729
 put_device+0x1f/0x30 drivers/base/core.c:3806
 hci_dev_put include/net/bluetooth/hci_core.h:1444 [inline]
 hci_dev_cmd+0x265/0x720 net/bluetooth/hci_core.c:795
 hci_sock_ioctl+0x41e/0x7f0 net/bluetooth/hci_sock.c:1096
 sock_do_ioctl+0x101/0x310 net/socket.c:1194
 sock_ioctl+0x4d8/0x6e0 net/socket.c:1311
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0x12f/0x1b0 fs/ioctl.c:856
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856
 x64_sys_call+0x58b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Last potentially related work creation:
 kasan_save_stack+0x3a/0x60 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xb6/0xc0 mm/kasan/generic.c:486
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:496
 insert_work+0x51/0x300 kernel/workqueue.c:1368
 __queue_work+0x9b1/0xd30 kernel/workqueue.c:1527
 queue_work_on+0xd2/0x140 kernel/workqueue.c:1555
 queue_work include/linux/workqueue.h:510 [inline]
 hci_cmd_sync_run net/bluetooth/hci_sync.c:140 [inline]
 __hci_cmd_sync_sk+0xa3e/0xcf0 net/bluetooth/hci_sync.c:162
 __hci_cmd_sync_status_sk net/bluetooth/hci_sync.c:253 [inline]
 __hci_cmd_sync_status net/bluetooth/hci_sync.c:277 [inline]
 hci_cmd_sync_status+0x53/0x120 net/bluetooth/hci_sync.c:288
 hci_dev_cmd+0x628/0x720 net/bluetooth/hci_core.c:-1
 hci_sock_ioctl+0x41e/0x7f0 net/bluetooth/hci_sock.c:1096
 sock_do_ioctl+0x101/0x310 net/socket.c:1194
 sock_ioctl+0x4d8/0x6e0 net/socket.c:1311
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0x12f/0x1b0 fs/ioctl.c:856
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856
 x64_sys_call+0x58b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Second to last potentially related work creation:
 kasan_save_stack+0x3a/0x60 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xb6/0xc0 mm/kasan/generic.c:486
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:496
 insert_work+0x51/0x300 kernel/workqueue.c:1368
 __queue_work+0x9b1/0xd30 kernel/workqueue.c:1527
 queue_work_on+0xd2/0x140 kernel/workqueue.c:1555
 queue_work include/linux/workqueue.h:510 [inline]
 hci_cmd_timeout+0x191/0x200 net/bluetooth/hci_core.c:1468
 process_one_work+0x71f/0xc40 kernel/workqueue.c:2299
 worker_thread+0xa29/0x11f0 kernel/workqueue.c:2446
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

The buggy address belongs to the object at ffff88810e3cc000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 2560 bytes inside of
 8192-byte region [ffff88810e3cc000, ffff88810e3ce000)

The buggy address belongs to the physical page:
page:ffffea000438f200 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88810e3c8000 pfn:0x10e3c8
head:ffffea000438f200 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 ffffea0004851c00 dead000000000003 ffff888100043500
raw: ffff88810e3c8000 0000000080020001 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 763, tgid 762 (syz.2.121), ts 73416198892, free_ts 73412986778
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f5/0x210 mm/page_alloc.c:2637
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2644
 get_page_from_freelist+0x2c6e/0x2ce0 mm/page_alloc.c:4539
 __alloc_pages+0x19e/0x3a0 mm/page_alloc.c:5842
 alloc_slab_page+0x6e/0xf0 include/linux/gfp.h:-1
 allocate_slab mm/slub.c:1962 [inline]
 new_slab+0x98/0x3d0 mm/slub.c:2015
 ___slab_alloc+0x6f6/0xb50 mm/slub.c:3203
 __slab_alloc+0x5e/0xa0 mm/slub.c:3302
 slab_alloc_node mm/slub.c:3387 [inline]
 __kmem_cache_alloc_node+0x203/0x2c0 mm/slub.c:3462
 __do_kmalloc_node mm/slab_common.c:937 [inline]
 __kmalloc_node+0xa1/0x1e0 mm/slab_common.c:945
 kmalloc_node include/linux/slab.h:589 [inline]
 kvmalloc_node+0x294/0x480 mm/util.c:592
 kvmalloc include/linux/slab.h:716 [inline]
 kvmalloc_array include/linux/slab.h:734 [inline]
 __ptr_ring_init_queue_alloc include/linux/ptr_ring.h:471 [inline]
 ptr_ring_resize include/linux/ptr_ring.h:594 [inline]
 tun_attach+0x845/0x1460 drivers/net/tun.c:791
 tun_net_init+0x44b/0x5a0 drivers/net/tun.c:1007
 register_netdevice+0x3f4/0x14a0 net/core/dev.c:10086
 tun_set_iff+0x82a/0xe90 drivers/net/tun.c:2851
 __tun_chr_ioctl+0x806/0x1e70 drivers/net/tun.c:3114
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1545 [inline]
 free_pcp_prepare mm/page_alloc.c:1619 [inline]
 free_unref_page_prepare+0x742/0x750 mm/page_alloc.c:3581
 free_unref_page+0x8f/0x530 mm/page_alloc.c:3677
 free_the_page mm/page_alloc.c:830 [inline]
 __free_pages+0x67/0x100 mm/page_alloc.c:5931
 __free_slab+0xca/0x1a0 mm/slub.c:2039
 free_slab mm/slub.c:2054 [inline]
 discard_slab mm/slub.c:2060 [inline]
 __unfreeze_partials+0x160/0x190 mm/slub.c:2609
 put_cpu_partial+0xa9/0x100 mm/slub.c:2685
 __slab_free+0x1c4/0x280 mm/slub.c:3563
 do_slab_free mm/slub.c:3640 [inline]
 ___cache_free+0xbf/0xd0 mm/slub.c:3696
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0xc6/0x140 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x14a/0x170 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x24/0x80 mm/kasan/common.c:310
 kasan_slab_alloc include/linux/kasan.h:202 [inline]
 slab_post_alloc_hook+0x4f/0x2d0 mm/slab.h:768
 slab_alloc_node mm/slub.c:3421 [inline]
 slab_alloc mm/slub.c:3431 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3438 [inline]
 kmem_cache_alloc+0x16e/0x330 mm/slub.c:3447
 getname_flags+0xb9/0x500 fs/namei.c:139
 getname+0x19/0x20 fs/namei.c:218
 do_sys_openat2+0xcb/0x7e0 fs/open.c:1335

Memory state around the buggy address:
 ffff88810e3cc900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88810e3cc980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88810e3cca00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff88810e3cca80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88810e3ccb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 1817 Comm: syz.7.409 Tainted: G    B              6.1.134-syzkaller-00039-g3c6d0251e1fb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__queue_work+0x575/0xd30 kernel/workqueue.c:-1
Code: 39 2b 0f 84 b9 00 00 00 e8 28 d0 28 00 4c 89 ff e8 30 8d a8 03 49 bc 00 00 00 00 00 fc ff df 4c 8b 6d d0 4c 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ef e8 7c 21 6d 00 49 8b 7d 00 e8 13 89
RSP: 0018:ffffc90000007c70 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffff88810cd75100
RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc90000007d08 R08: fffffffffffffffb R09: 0000000000000007
R10: ffffed1021c79939 R11: 1ffff11021c79939 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff88810e3cc9c8 R15: 0000000000000008
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555f7eb4a8 CR3: 0000000006e0f000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 delayed_work_timer_fn+0x61/0x80 kernel/workqueue.c:1653
 call_timer_fn+0x46/0x2a0 kernel/time/timer.c:1510
 expire_timers kernel/time/timer.c:1550 [inline]
 __run_timers+0x667/0x9a0 kernel/time/timer.c:1826
 run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1839
 handle_softirqs+0x1d7/0x600 kernel/softirq.c:624
 __do_softirq kernel/softirq.c:662 [inline]
 invoke_softirq kernel/softirq.c:479 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:711
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:723
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:update_stack_state+0x123/0x480 arch/x86/kernel/unwind_frame.c:-1
Code: ff ff 48 8d 53 18 48 8d 43 28 48 8d 73 20 48 89 b5 60 ff ff ff 4c 89 f6 48 c1 ee 03 48 89 b5 40 ff ff ff 48 89 8d 70 ff ff ff <48> c1 e9 03 48 89 8d 48 ff ff ff 48 89 95 58 ff ff ff 48 c1 ea 03
RSP: 0018:ffffc9000f77ebb8 EFLAGS: 00000a02
RAX: ffffc9000f77ed30 RBX: ffffc9000f77ed08 RCX: ffffc9000f77ed18
RDX: ffffc9000f77ed20 RSI: 1ffff92001eefda2 RDI: ffffc9000f77ed60
RBP: ffffc9000f77ec78 R08: ffffc9000f77edd0 R09: ffffc9000f77edc8
R10: 000000000000000e R11: 1ffff92001eefda1 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc9000f77ed10 R15: ffffc9000f77f9d0
 unwind_next_frame+0x3d5/0x700 arch/x86/kernel/unwind_frame.c:315
 arch_stack_walk+0x124/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x98/0xe0 kernel/stacktrace.c:122
 save_stack+0xf3/0x1e0 mm/page_owner.c:147
 __reset_page_owner+0x54/0x190 mm/page_owner.c:168
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1545 [inline]
 free_pcp_prepare mm/page_alloc.c:1619 [inline]
 free_unref_page_prepare+0x742/0x750 mm/page_alloc.c:3581
 free_unref_page_list+0xba/0x7c0 mm/page_alloc.c:3729
 release_pages+0xad1/0xb20 mm/swap.c:1043
 __pagevec_release+0x71/0xe0 mm/swap.c:1063
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 shmem_undo_range+0x51a/0x1470 mm/shmem.c:955
 shmem_truncate_range mm/shmem.c:1071 [inline]
 shmem_evict_inode+0x242/0xa10 mm/shmem.c:1180
 evict+0x493/0x890 fs/inode.c:705
 iput_final fs/inode.c:1834 [inline]
 iput+0x620/0x670 fs/inode.c:1860
 dentry_unlink_inode+0x33d/0x3f0 fs/dcache.c:405
 __dentry_kill+0x460/0x670 fs/dcache.c:611
 dentry_kill+0xc0/0x2a0 fs/dcache.c:-1
 dput+0x42/0x80 fs/dcache.c:918
 __fput+0x5be/0x8f0 fs/file_table.c:328
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x1db/0x240 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0xa1d/0x2650 kernel/exit.c:877
 do_group_exit+0x210/0x2d0 kernel/exit.c:1027
 get_signal+0x13b5/0x1520 kernel/signal.c:2889
 arch_do_signal_or_restart+0xb0/0x1030 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x7a/0xb0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ff827b8e969
Code: Unable to access opcode bytes at 0x7ff827b8e93f.
RSP: 002b:00007ff828a780e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007ff827db6088 RCX: 00007ff827b8e969
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff827db6088
RBP: 00007ff827db6080 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff827db608c
R13: 0000000000000000 R14: 00007ffdd23c6560 R15: 00007ffdd23c6648
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__queue_work+0x575/0xd30 kernel/workqueue.c:-1
Code: 39 2b 0f 84 b9 00 00 00 e8 28 d0 28 00 4c 89 ff e8 30 8d a8 03 49 bc 00 00 00 00 00 fc ff df 4c 8b 6d d0 4c 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ef e8 7c 21 6d 00 49 8b 7d 00 e8 13 89
RSP: 0018:ffffc90000007c70 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffff88810cd75100
RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc90000007d08 R08: fffffffffffffffb R09: 0000000000000007
R10: ffffed1021c79939 R11: 1ffff11021c79939 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff88810e3cc9c8 R15: 0000000000000008
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555f7eb4a8 CR3: 0000000006e0f000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	ff 48 8d             	decl   -0x73(%rax)
   3:	53                   	push   %rbx
   4:	18 48 8d             	sbb    %cl,-0x73(%rax)
   7:	43 28 48 8d          	rex.XB sub %cl,-0x73(%r8)
   b:	73 20                	jae    0x2d
   d:	48 89 b5 60 ff ff ff 	mov    %rsi,-0xa0(%rbp)
  14:	4c 89 f6             	mov    %r14,%rsi
  17:	48 c1 ee 03          	shr    $0x3,%rsi
  1b:	48 89 b5 40 ff ff ff 	mov    %rsi,-0xc0(%rbp)
  22:	48 89 8d 70 ff ff ff 	mov    %rcx,-0x90(%rbp)
* 29:	48 c1 e9 03          	shr    $0x3,%rcx <-- trapping instruction
  2d:	48 89 8d 48 ff ff ff 	mov    %rcx,-0xb8(%rbp)
  34:	48 89 95 58 ff ff ff 	mov    %rdx,-0xa8(%rbp)
  3b:	48 c1 ea 03          	shr    $0x3,%rdx