======================================
| [   14.583042][  T219] ==================================================================
| [ 14.583373][ T219] BUG: KASAN: use-after-free in page_pool_item_uninit (net/core/page_pool.c:523)
| [   14.583649][  T219] Read of size 8 at addr ffff88800bdbb008 by task bash/219
| [   14.583911][  T219]
[   14.584272][  T219] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.584491][  T219] Call Trace:
[   14.584629][  T219]  <TASK>
[ 14.584726][ T219] dump_stack_lvl (lib/dump_stack.c:123)
[ 14.584914][ T219] print_address_description.constprop.0 (mm/kasan/report.c:379)
[ 14.585155][ T219] ? page_pool_item_uninit (net/core/page_pool.c:523)
[ 14.585341][ T219] print_report (mm/kasan/report.c:490)
[ 14.585517][ T219] ? kasan_addr_to_slab (./include/linux/mm.h:1295 mm/kasan/../slab.h:211 mm/kasan/common.c:38)
[ 14.585703][ T219] kasan_report (mm/kasan/report.c:604)
[ 14.585846][ T219] ? page_pool_item_uninit (net/core/page_pool.c:523)
[ 14.586057][ T219] page_pool_item_uninit (net/core/page_pool.c:523)
[ 14.586236][ T219] page_pool_release (net/core/page_pool.c:1431 net/core/page_pool.c:1484)
[ 14.586425][ T219] ? __pfx_autoremove_wake_function (kernel/sched/wait.c:383)
[ 14.586674][ T219] ? __pfx_page_pool_release (net/core/page_pool.c:1478)
[ 14.586890][ T219] ? napi_disable (./arch/x86/include/asm/bitops.h:75 ./include/asm-generic/bitops/instrumented-atomic.h:42 net/core/dev.c:6832)
[ 14.587079][ T219] page_pool_destroy (net/core/page_pool.c:1555)
[ 14.587264][ T219] nsim_stop (drivers/net/netdevsim/netdev.c:469 drivers/net/netdevsim/netdev.c:483) netdevsim
[ 14.587471][ T219] __dev_close_many (net/core/dev.c:1591)
[ 14.587663][ T219] ? __pfx___dev_close_many (net/core/dev.c:1555)
[ 14.587879][ T219] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860)
[ 14.588086][ T219] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 14.588266][ T219] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 14.588405][ T219] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 14.588588][ T219] dev_close_many (net/core/dev.c:1618)
[ 14.588766][ T219] ? __pfx_dev_close_many (net/core/dev.c:1608)
[ 14.588992][ T219] unregister_netdevice_many_notify (net/core/dev.c:11562)
[ 14.589232][ T219] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:104)
[ 14.589413][ T219] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79)
[ 14.589632][ T219] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11529)
[ 14.589876][ T219] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 14.590059][ T219] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:735)
[ 14.590245][ T219] ? nsim_destroy (drivers/net/netdevsim/netdev.c:827) netdevsim
[ 14.590446][ T219] ? __pfx___mutex_lock (kernel/locking/mutex.c:734)
[ 14.590623][ T219] unregister_netdevice_queue (net/core/dev.c:11524)
[ 14.590815][ T219] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 14.590994][ T219] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11513)
[ 14.591213][ T219] nsim_destroy (drivers/net/netdevsim/netdev.c:832 (discriminator 2)) netdevsim
[ 14.591398][ T219] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:426 drivers/net/netdevsim/dev.c:1429) netdevsim
[ 14.591640][ T219] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1438 drivers/net/netdevsim/dev.c:1661) netdevsim
[ 14.591890][ T219] nsim_drv_remove (drivers/net/netdevsim/dev.c:1678) netdevsim
[ 14.592086][ T219] device_release_driver_internal (drivers/base/dd.c:1275 drivers/base/dd.c:1296)
[ 14.592316][ T219] ? klist_put (lib/klist.c:220)
[ 14.592462][ T219] bus_remove_device (./include/linux/kobject.h:193 drivers/base/base.h:73 drivers/base/bus.c:583)
[ 14.592644][ T219] device_del (drivers/base/core.c:3855)
[ 14.592791][ T219] ? __pfx_device_del (drivers/base/core.c:3809)
[ 14.592969][ T219] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851)
[ 14.593148][ T219] ? kernfs_fop_write_iter (fs/kernfs/file.c:326)
[ 14.593328][ T219] device_unregister (drivers/base/core.c:3772 drivers/base/core.c:3896)
[ 14.593517][ T219] del_device_store (drivers/net/netdevsim/bus.c:230) netdevsim
[ 14.593745][ T219] ? __pfx_del_device_store (drivers/net/netdevsim/bus.c:197) netdevsim
[ 14.593972][ T219] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132)
[ 14.594148][ T219] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1))
[ 14.594339][ T219] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132)
[ 14.594524][ T219] kernfs_fop_write_iter (fs/kernfs/file.c:334)
[ 14.594701][ T219] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
[ 14.594840][ T219] ? __pfx_vfs_write (fs/read_write.c:660)
[ 14.595028][ T219] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 14.595206][ T219] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340)
[ 14.595387][ T219] ? __pfx___up_read (kernel/locking/rwsem.c:1337)
[ 14.595585][ T219] ksys_write (fs/read_write.c:731)
[ 14.595720][ T219] ? __pfx_ksys_write (fs/read_write.c:721)
[ 14.595893][ T219] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340)
[ 14.596099][ T219] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 14.596277][ T219] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   14.596492][  T219] RIP: 0033:0x7f33fec8bb77
[ 14.596677][ T219] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   14.597321][  T219] RSP: 002b:00007ffe9f8db858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   14.597607][  T219] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f33fec8bb77
[   14.597881][  T219] RDX: 0000000000000004 RSI: 000055b0155258c0 RDI: 0000000000000001
[   14.598186][  T219] RBP: 000055b0155258c0 R08: 0000000000000000 R09: 00007f33fecfe4e0
[   14.598452][  T219] R10: 00007f33fecfe3e0 R11: 0000000000000246 R12: 0000000000000004
[   14.598760][  T219] R13: 00007f33fed47760 R14: 0000000000000004 R15: 00007f33fed429c0
| [   14.603054][  T219] Disabling lock debugging due to kernel taint
| [   14.603293][  T219] Oops: general protection fault, probably for non-canonical address 0xf99995999999999c: 0000 [#1] PREEMPT SMP KASAN NOPTI
| [   14.603744][  T219] KASAN: maybe wild-memory-access in range [0xcccccccccccccce0-0xcccccccccccccce7]
| [   14.604356][  T219] Tainted: [B]=BAD_PAGE
[   14.604488][  T219] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 14.604716][ T219] RIP: 0010:page_pool_item_uninit (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 net/core/page_pool.c:524)
[ 14.604951][ T219] Code: b8 48 bb 00 00 00 00 00 fc ff df 48 c1 ed 03 48 01 dd 4d 8d 75 1c be 04 00 00 00 4c 89 f7 e8 5d bc 68 fe 4c 89 f0 48 c1 e8 03 <0f> b6 14 18 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 62 41
All code
========
   0:	b8 48 bb 00 00       	mov    $0xbb48,%eax
   5:	00 00                	add    %al,(%rax)
   7:	00 fc                	add    %bh,%ah
   9:	ff                   	(bad)
   a:	df 48 c1             	fisttps -0x3f(%rax)
   d:	ed                   	in     (%dx),%eax
   e:	03 48 01             	add    0x1(%rax),%ecx
  11:	dd 4d 8d             	fisttpll -0x73(%rbp)
  14:	75 1c                	jne    0x32
  16:	be 04 00 00 00       	mov    $0x4,%esi
  1b:	4c 89 f7             	mov    %r14,%rdi
  1e:	e8 5d bc 68 fe       	call   0xfffffffffe68bc80
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
  2a:*	0f b6 14 18          	movzbl (%rax,%rbx,1),%edx		<-- trapping instruction
  2e:	4c 89 f0             	mov    %r14,%rax
  31:	83 e0 07             	and    $0x7,%eax
  34:	83 c0 03             	add    $0x3,%eax
  37:	38 d0                	cmp    %dl,%al
  39:	7c 04                	jl     0x3f
  3b:	84 d2                	test   %dl,%dl
  3d:	75 62                	jne    0xa1
  3f:	41                   	rex.B

Code starting with the faulting instruction
===========================================
   0:	0f b6 14 18          	movzbl (%rax,%rbx,1),%edx
   4:	4c 89 f0             	mov    %r14,%rax
   7:	83 e0 07             	and    $0x7,%eax
   a:	83 c0 03             	add    $0x3,%eax
   d:	38 d0                	cmp    %dl,%al
   f:	7c 04                	jl     0x15
  11:	84 d2                	test   %dl,%dl
  13:	75 62                	jne    0x77
  15:	41                   	rex.B
[   14.605551][  T219] RSP: 0018:ffffc90000a774f0 EFLAGS: 00010a06
[   14.605765][  T219] RAX: 199999999999999c RBX: dffffc0000000000 RCX: ffffffffb6e37b43
[   14.606031][  T219] RDX: 0000000000000000 RSI: 0000000000000004 RDI: cccccccccccccce0
[   14.606305][  T219] RBP: fffffbfff7058878 R08: 0000000000000000 R09: fffffbfff7419888
[   14.606564][  T219] R10: ffffffffba0cc447 R11: 205d393132542020 R12: ffff888002621220
[   14.606819][  T219] R13: ccccccccccccccc4 R14: cccccccccccccce0 R15: 0000000000000000
[   14.607076][  T219] FS:  00007f33feb4a740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   14.607382][  T219] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.607599][  T219] CR2: 00007f33febd1290 CR3: 0000000008712006 CR4: 0000000000772ef0
[   14.607971][  T219] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   14.608234][  T219] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   14.608607][  T219] PKRU: 55555554
[   14.608736][  T219] Call Trace:
[   14.608864][  T219]  <TASK>
[ 14.608953][ T219] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460)
[ 14.609125][ T219] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693)
[ 14.609396][ T219] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617)
[ 14.609575][ T219] ? page_pool_item_uninit (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 net/core/page_pool.c:524)
[ 14.609759][ T219] ? page_pool_item_uninit (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 net/core/page_pool.c:524)
[ 14.609947][ T219] page_pool_release (net/core/page_pool.c:1431 net/core/page_pool.c:1484)
[ 14.610220][ T219] ? __pfx_autoremove_wake_function (kernel/sched/wait.c:383)
[ 14.610444][ T219] ? __pfx_page_pool_release (net/core/page_pool.c:1478)
[ 14.610630][ T219] ? napi_disable (./arch/x86/include/asm/bitops.h:75 ./include/asm-generic/bitops/instrumented-atomic.h:42 net/core/dev.c:6832)
[ 14.610839][ T219] page_pool_destroy (net/core/page_pool.c:1555)
[ 14.611115][ T219] nsim_stop (drivers/net/netdevsim/netdev.c:469 drivers/net/netdevsim/netdev.c:483) netdevsim
[ 14.611307][ T219] __dev_close_many (net/core/dev.c:1591)
[ 14.611481][ T219] ? __pfx___dev_close_many (net/core/dev.c:1555)
[ 14.611650][ T219] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860)
[ 14.611915][ T219] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 14.612085][ T219] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 14.612237][ T219] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 14.612410][ T219] dev_close_many (net/core/dev.c:1618)
[ 14.612679][ T219] ? __pfx_dev_close_many (net/core/dev.c:1608)
[ 14.612888][ T219] unregister_netdevice_many_notify (net/core/dev.c:11562)
[ 14.613107][ T219] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:104)
[ 14.613283][ T219] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79)
[ 14.613598][ T219] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11529)
[ 14.613809][ T219] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 14.613981][ T219] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:735)
[ 14.614150][ T219] ? nsim_destroy (drivers/net/netdevsim/netdev.c:827) netdevsim
[ 14.614338][ T219] ? __pfx___mutex_lock (kernel/locking/mutex.c:734)
[ 14.614518][ T219] unregister_netdevice_queue (net/core/dev.c:11524)
[ 14.614692][ T219] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 14.614863][ T219] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11513)
[ 14.615176][ T219] nsim_destroy (drivers/net/netdevsim/netdev.c:832 (discriminator 2)) netdevsim
[ 14.615372][ T219] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:426 drivers/net/netdevsim/dev.c:1429) netdevsim
[ 14.615592][ T219] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1438 drivers/net/netdevsim/dev.c:1661) netdevsim
[ 14.615908][ T219] nsim_drv_remove (drivers/net/netdevsim/dev.c:1678) netdevsim
[ 14.616102][ T219] device_release_driver_internal (drivers/base/dd.c:1275 drivers/base/dd.c:1296)
[ 14.616322][ T219] ? klist_put (lib/klist.c:220)
[ 14.616452][ T219] bus_remove_device (./include/linux/kobject.h:193 drivers/base/base.h:73 drivers/base/bus.c:583)
[ 14.616733][ T219] device_del (drivers/base/core.c:3855)
[ 14.616865][ T219] ? __pfx_device_del (drivers/base/core.c:3809)
[ 14.617040][ T219] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851)
[ 14.617214][ T219] ? kernfs_fop_write_iter (fs/kernfs/file.c:326)
[ 14.617492][ T219] device_unregister (drivers/base/core.c:3772 drivers/base/core.c:3896)
[ 14.617670][ T219] del_device_store (drivers/net/netdevsim/bus.c:230) netdevsim
[ 14.617906][ T219] ? __pfx_del_device_store (drivers/net/netdevsim/bus.c:197) netdevsim
[ 14.618142][ T219] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132)
[ 14.618327][ T219] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1))
[ 14.618504][ T219] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132)
[ 14.618680][ T219] kernfs_fop_write_iter (fs/kernfs/file.c:334)
[ 14.618857][ T219] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
[ 14.619087][ T219] ? __pfx_vfs_write (fs/read_write.c:660)
[ 14.619259][ T219] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 14.619436][ T219] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340)
[ 14.619610][ T219] ? __pfx___up_read (kernel/locking/rwsem.c:1337)
[ 14.619876][ T219] ksys_write (fs/read_write.c:731)
[ 14.620005][ T219] ? __pfx_ksys_write (fs/read_write.c:721)
[ 14.620177][ T219] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340)
[ 14.620380][ T219] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 14.620649][ T219] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   14.620862][  T219] RIP: 0033:0x7f33fec8bb77
[ 14.621041][ T219] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   14.621783][  T219] RSP: 002b:00007ffe9f8db858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   14.622041][  T219] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f33fec8bb77
[   14.622400][  T219] RDX: 0000000000000004 RSI: 000055b0155258c0 RDI: 0000000000000001
[   14.622654][  T219] RBP: 000055b0155258c0 R08: 0000000000000000 R09: 00007f33fecfe4e0
[   14.623025][  T219] R10: 00007f33fecfe3e0 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
print_report:kasan_report:page_pool_item_uninit:page_pool_release:page_pool_destroy
page_pool_item_uninit:page_pool_release:page_pool_destroy:nsim_stop:__dev_close_many