==================================================================
BUG: KASAN: slab-use-after-free in __lock_acquire+0x78/0x1fd0 kernel/locking/lockdep.c:5005
Read of size 8 at addr ffff88802a18c610 by task syz-executor.2/5081

CPU: 0 PID: 5081 Comm: syz-executor.2 Not tainted 6.9.0-rc4-syzkaller-00266-g977b1ef51866 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:488
 kasan_report+0x143/0x180 mm/kasan/report.c:601
 __lock_acquire+0x78/0x1fd0 kernel/locking/lockdep.c:5005
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
 class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:553 [inline]
 try_to_wake_up+0xb0/0x1470 kernel/sched/core.c:4262
 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1793
 expire_timers kernel/time/timer.c:1844 [inline]
 __run_timers kernel/time/timer.c:2418 [inline]
 __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2429
 run_timer_base kernel/time/timer.c:2438 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2448
 __do_softirq+0x2c6/0x980 kernel/softirq.c:554
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:645
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 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:_compound_head include/linux/page-flags.h:249 [inline]
RIP: 0010:virt_to_folio include/linux/mm.h:1306 [inline]
RIP: 0010:virt_to_slab+0x1c/0xb0 mm/slab.h:204
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e8 3b c7 4b ff 48 c1 e8 06 48 83 e0 c0 48 ba 00 00 00 00 00 ea ff ff 48 8b 4c 10 08 <f6> c1 01 75 43 48 01 d0 66 90 48 8b 48 08 f6 c1 01 75 64 66 90 48
RSP: 0018:ffffc9000375fc10 EFLAGS: 00000206
RAX: 00000000011957c0 RBX: ffff88804655f298 RCX: ffffea0001195601
RDX: ffffea0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000375fd58 R08: ffffffff81429eac R09: 1ffffffff1f4f6d5
R10: dffffc0000000000 R11: fffffbfff1f4f6d6 R12: ffffffff821020c0
R13: 1ffff920006ebf94 R14: 0000000000000000 R15: ffffc9000375fce0
 __kasan_record_aux_stack+0x11/0xc0 mm/kasan/generic.c:526
 __call_rcu_common kernel/rcu/tree.c:2734 [inline]
 call_rcu+0x167/0xa70 kernel/rcu/tree.c:2838
 d_delete_notify include/linux/fsnotify.h:307 [inline]
 vfs_rmdir+0x38f/0x4c0 fs/namei.c:4219
 do_rmdir+0x3b5/0x580 fs/namei.c:4265
 __do_sys_unlinkat fs/namei.c:4441 [inline]
 __se_sys_unlinkat fs/namei.c:4435 [inline]
 __x64_sys_unlinkat+0xe0/0xf0 fs/namei.c:4435
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff85007d687
Code: 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 07 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffda9e27b38 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007ff85007d687
RDX: 0000000000000200 RSI: 00007ffda9e28cb0 RDI: 00000000ffffff9c
RBP: 00007ff8500c93b9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000207 R12: 00007ffda9e28cb0
R13: 00007ff8500c93b9 R14: 000000000001d0a4 R15: 0000000000000005
 </TASK>

Allocated by task 2:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:312 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3798 [inline]
 slab_alloc_node mm/slub.c:3845 [inline]
 kmem_cache_alloc_node+0x194/0x380 mm/slub.c:3888
 alloc_task_struct_node kernel/fork.c:176 [inline]
 dup_task_struct+0x57/0x7d0 kernel/fork.c:1107
 copy_process+0x5d1/0x3df0 kernel/fork.c:2220
 kernel_clone+0x223/0x870 kernel/fork.c:2797
 kernel_thread+0x1bc/0x240 kernel/fork.c:2859
 create_kthread kernel/kthread.c:411 [inline]
 kthreadd+0x60d/0x810 kernel/kthread.c:764
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Freed by task 781:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
 poison_slab_object+0xa6/0xe0 mm/kasan/common.c:240
 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2106 [inline]
 slab_free mm/slub.c:4280 [inline]
 kmem_cache_free+0x10b/0x2c0 mm/slub.c:4344
 put_task_struct include/linux/sched/task.h:138 [inline]
 delayed_put_task_struct+0x125/0x2f0 kernel/exit.c:229
 rcu_do_batch kernel/rcu/tree.c:2196 [inline]
 rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2471
 __do_softirq+0x2c6/0x980 kernel/softirq.c:554

Last potentially related work creation:
 kasan_save_stack+0x3f/0x60 mm/kasan/common.c:47
 __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:541
 __call_rcu_common kernel/rcu/tree.c:2734 [inline]
 call_rcu+0x167/0xa70 kernel/rcu/tree.c:2838
 context_switch kernel/sched/core.c:5412 [inline]
 __schedule+0x179e/0x4a00 kernel/sched/core.c:6746
 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6925
 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6949
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:12
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock_irqrestore+0x130/0x140 kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 __wake_up_common_lock+0x18c/0x1e0 kernel/sched/wait.c:108
 nilfs_segctor_sync+0x315/0x5e0 fs/nilfs2/segment.c:2185
 nilfs_construct_segment fs/nilfs2/segment.c:2253 [inline]
 nilfs_transaction_commit+0x5e3/0x7d0 fs/nilfs2/segment.c:285
 nilfs_evict_inode+0x41b/0x500 fs/nilfs2/inode.c:958
 evict+0x2a8/0x630 fs/inode.c:667
 nilfs_dispose_list+0x51d/0x5c0 fs/nilfs2/segment.c:820
 process_one_work kernel/workqueue.c:3254 [inline]
 process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3335
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

The buggy address belongs to the object at ffff88802a18bc00
 which belongs to the cache task_struct of size 7424
The buggy address is located 2576 bytes inside of
 freed 7424-byte region [ffff88802a18bc00, ffff88802a18d900)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a188
head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff88802c3ca1c1
ksm flags: 0xfff80000000840(slab|head|node=0|zone=1|lastcpupid=0xfff)
page_type: 0xffffffff()
raw: 00fff80000000840 ffff8880162a6500 ffffea0001ed8200 dead000000000003
raw: 0000000000000000 0000000000040004 00000001ffffffff ffff88802c3ca1c1
head: 00fff80000000840 ffff8880162a6500 ffffea0001ed8200 dead000000000003
head: 0000000000000000 0000000000040004 00000001ffffffff ffff88802c3ca1c1
head: 00fff80000000003 ffffea0000a86201 ffffea0000a86248 00000000ffffffff
head: 0000000800000000 0000000000000000 00000000ffffffff 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 2, tgid -1570642926 (kthreadd), ts 2, free_ts 62847656464
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1ea/0x210 mm/page_alloc.c:1534
 prep_new_page mm/page_alloc.c:1541 [inline]
 get_page_from_freelist+0x3410/0x35b0 mm/page_alloc.c:3317
 __alloc_pages+0x256/0x6c0 mm/page_alloc.c:4575
 __alloc_pages_node include/linux/gfp.h:238 [inline]
 alloc_pages_node include/linux/gfp.h:261 [inline]
 alloc_slab_page+0x5f/0x160 mm/slub.c:2175
 allocate_slab mm/slub.c:2338 [inline]
 new_slab+0x84/0x2f0 mm/slub.c:2391
 ___slab_alloc+0xc73/0x1260 mm/slub.c:3525
 __slab_alloc mm/slub.c:3610 [inline]
 __slab_alloc_node mm/slub.c:3663 [inline]
 slab_alloc_node mm/slub.c:3835 [inline]
 kmem_cache_alloc_node+0x24a/0x380 mm/slub.c:3888
 alloc_task_struct_node kernel/fork.c:176 [inline]
 dup_task_struct+0x57/0x7d0 kernel/fork.c:1107
 copy_process+0x5d1/0x3df0 kernel/fork.c:2220
 kernel_clone+0x223/0x870 kernel/fork.c:2797
 kernel_thread+0x1bc/0x240 kernel/fork.c:2859
 create_kthread kernel/kthread.c:411 [inline]
 kthreadd+0x60d/0x810 kernel/kthread.c:764
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
page last free pid 5083 tgid 5083 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1141 [inline]
 free_unref_page_prepare+0x97b/0xaa0 mm/page_alloc.c:2347
 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2487
 discard_slab mm/slub.c:2437 [inline]
 __put_partials+0xeb/0x130 mm/slub.c:2906
 put_cpu_partial+0x17c/0x250 mm/slub.c:2981
 __slab_free+0x2ea/0x3d0 mm/slub.c:4151
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x5e/0xc0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3798 [inline]
 slab_alloc_node mm/slub.c:3845 [inline]
 kmalloc_trace+0x16f/0x360 mm/slub.c:3992
 kmalloc include/linux/slab.h:628 [inline]
 kzalloc include/linux/slab.h:749 [inline]
 kset_create lib/kobject.c:965 [inline]
 kset_create_and_add+0x5b/0x170 lib/kobject.c:1008
 register_queue_kobjects net/core/net-sysfs.c:1887 [inline]
 netdev_register_kobject+0x1a8/0x320 net/core/net-sysfs.c:2140
 register_netdevice+0x1208/0x1a20 net/core/dev.c:10283
 br_dev_newlink+0x27/0x100 net/bridge/br_netlink.c:1563
 rtnl_newlink_create net/core/rtnetlink.c:3494 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3714 [inline]
 rtnl_newlink+0x158f/0x20a0 net/core/rtnetlink.c:3727
 rtnetlink_rcv_msg+0x89b/0x10d0 net/core/rtnetlink.c:6595
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2559

Memory state around the buggy address:
 ffff88802a18c500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802a18c580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802a18c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                         ^
 ffff88802a18c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802a18c700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	e8 3b c7 4b ff       	call   0xff4bc74e
  13:	48 c1 e8 06          	shr    $0x6,%rax
  17:	48 83 e0 c0          	and    $0xffffffffffffffc0,%rax
  1b:	48 ba 00 00 00 00 00 	movabs $0xffffea0000000000,%rdx
  22:	ea ff ff
  25:	48 8b 4c 10 08       	mov    0x8(%rax,%rdx,1),%rcx
* 2a:	f6 c1 01             	test   $0x1,%cl <-- trapping instruction
  2d:	75 43                	jne    0x72
  2f:	48 01 d0             	add    %rdx,%rax
  32:	66 90                	xchg   %ax,%ax
  34:	48 8b 48 08          	mov    0x8(%rax),%rcx
  38:	f6 c1 01             	test   $0x1,%cl
  3b:	75 64                	jne    0xa1
  3d:	66 90                	xchg   %ax,%ax
  3f:	48                   	rex.W