==================================================================
BUG: KASAN: slab-use-after-free in __lock_acquire+0x77/0x1fd0 kernel/locking/lockdep.c:5005
Read of size 8 at addr ffff88801e8209f8 by task syz-executor.1/5087

CPU: 0 PID: 5087 Comm: syz-executor.1 Not tainted 6.7.0-rc7-syzkaller-00049-g453f5db0619e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0x163/0x540 mm/kasan/report.c:475
 kasan_report+0x142/0x170 mm/kasan/report.c:588
 __lock_acquire+0x77/0x1fd0 kernel/locking/lockdep.c:5005
 lock_acquire+0x1e3/0x530 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:518 [inline]
 try_to_wake_up+0xb5/0x1440 kernel/sched/core.c:4226
 call_timer_fn+0x17a/0x5f0 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x64f/0x860 kernel/time/timer.c:2022
 run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2035
 __do_softirq+0x2b8/0x939 kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu+0xf1/0x1b0 kernel/softirq.c:632
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x97/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:console_flush_all+0x9c3/0xeb0 kernel/printk/printk.c:2973
Code: 48 21 c3 0f 85 fa 01 00 00 e8 f9 7b 1d 00 48 8b 5c 24 38 4d 85 f6 75 07 e8 ea 7b 1d 00 eb 06 e8 e3 7b 1d 00 fb 48 8b 44 24 58 <42> 0f b6 04 28 84 c0 0f 85 4a 02 00 00 0f b6 1b 31 ff 89 de e8 54
RSP: 0018:ffffc9000446ebc0 EFLAGS: 00000293
RAX: 1ffff9200088ddc4 RBX: ffffc9000446ee20 RCX: ffff88806fdebb80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000446ed70 R08: ffffffff8170fde4 R09: 1ffffffff21bb26c
R10: dffffc0000000000 R11: fffffbfff21bb26d R12: ffffffff8e0cf340
R13: dffffc0000000000 R14: 0000000000000200 R15: ffffffff8e0cf398
 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3036
 vprintk_emit+0x508/0x720 kernel/printk/printk.c:2303
 _printk+0xd5/0x120 kernel/printk/printk.c:2328
 __nilfs_msg+0x34d/0x410 fs/nilfs2/super.c:79
 nilfs_clear_dirty_page+0x6a1/0x1110 fs/nilfs2/page.c:421
 nilfs_clear_dirty_pages+0x1e0/0x370 fs/nilfs2/page.c:382
 nilfs_writepages+0x11c/0x160 fs/nilfs2/inode.c:165
 do_writepages+0x3a6/0x670 mm/page-writeback.c:2553
 __writeback_single_inode+0x155/0xfc0 fs/fs-writeback.c:1625
 writeback_single_inode+0x21b/0x7a0 fs/fs-writeback.c:1746
 write_inode_now+0x1d3/0x260 fs/fs-writeback.c:2788
 iput_final fs/inode.c:1764 [inline]
 iput+0x5a0/0x900 fs/inode.c:1803
 nilfs_dispose_list+0x51d/0x5c0 fs/nilfs2/segment.c:820
 nilfs_segctor_destroy fs/nilfs2/segment.c:2774 [inline]
 nilfs_detach_log_writer+0x7d3/0xbe0 fs/nilfs2/segment.c:2849
 nilfs_put_super+0x4d/0x160 fs/nilfs2/super.c:499
 generic_shutdown_super+0x13a/0x2c0 fs/super.c:696
 kill_block_super+0x44/0x90 fs/super.c:1667
 deactivate_locked_super+0xc1/0x130 fs/super.c:484
 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256
 task_work_run+0x24a/0x300 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x69/0x2a0 kernel/entry/common.c:296
 do_syscall_64+0x52/0x110 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fd46747e017
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffc740ba718 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd46747e017
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffc740ba7d0
RBP: 00007ffc740ba7d0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc740bb890
R13: 00007fd4674c83b9 R14: 00000000002b02ae R15: 0000000000000008
 </TASK>

Allocated by task 2:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
 __kasan_slab_alloc+0x66/0x70 mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:188 [inline]
 slab_post_alloc_hook+0x6c/0x3c0 mm/slab.h:763
 slab_alloc_node mm/slub.c:3478 [inline]
 kmem_cache_alloc_node+0x1dd/0x310 mm/slub.c:3523
 alloc_task_struct_node kernel/fork.c:173 [inline]
 dup_task_struct+0x57/0x7d0 kernel/fork.c:1110
 copy_process+0x5d1/0x3fb0 kernel/fork.c:2332
 kernel_clone+0x222/0x840 kernel/fork.c:2907
 kernel_thread+0x1bc/0x230 kernel/fork.c:2969
 create_kthread kernel/kthread.c:411 [inline]
 kthreadd+0x60c/0x810 kernel/kthread.c:764
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242

Freed by task 15867:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522
 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:164 [inline]
 slab_free_hook mm/slub.c:1800 [inline]
 slab_free_freelist_hook mm/slub.c:1826 [inline]
 slab_free mm/slub.c:3809 [inline]
 kmem_cache_free+0x299/0x470 mm/slub.c:3831
 put_task_struct include/linux/sched/task.h:136 [inline]
 delayed_put_task_struct+0x115/0x2c0 kernel/exit.c:227
 rcu_do_batch kernel/rcu/tree.c:2158 [inline]
 rcu_core+0xad8/0x17c0 kernel/rcu/tree.c:2431
 __do_softirq+0x2b8/0x939 kernel/softirq.c:553

Last potentially related work creation:
 kasan_save_stack+0x3f/0x60 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xad/0xc0 mm/kasan/generic.c:492
 __call_rcu_common kernel/rcu/tree.c:2681 [inline]
 call_rcu+0x167/0xa80 kernel/rcu/tree.c:2795
 context_switch kernel/sched/core.c:5379 [inline]
 __schedule+0x1969/0x4ab0 kernel/sched/core.c:6688
 preempt_schedule_irq+0xfb/0x1b0 kernel/sched/core.c:7008
 irqentry_exit+0x5a/0x80 kernel/entry/common.c:432
 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:654

Second to last potentially related work creation:
 kasan_save_stack+0x3f/0x60 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xad/0xc0 mm/kasan/generic.c:492
 __call_rcu_common kernel/rcu/tree.c:2681 [inline]
 call_rcu+0x167/0xa80 kernel/rcu/tree.c:2795
 context_switch kernel/sched/core.c:5379 [inline]
 __schedule+0x1969/0x4ab0 kernel/sched/core.c:6688
 preempt_schedule_common+0x83/0xc0 kernel/sched/core.c:6865
 preempt_schedule+0xdd/0xf0 kernel/sched/core.c:6889
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
 unwind_next_frame+0x211e/0x29e0 arch/x86/kernel/unwind_orc.c:672
 arch_stack_walk+0x146/0x1a0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122
 save_stack+0xfa/0x1e0 mm/page_owner.c:128
 __reset_page_owner+0x4f/0x190 mm/page_owner.c:149
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1137 [inline]
 free_unref_page_prepare+0x931/0xa60 mm/page_alloc.c:2347
 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2487
 discard_slab mm/slub.c:2116 [inline]
 __unfreeze_partials+0x1e0/0x220 mm/slub.c:2655
 put_cpu_partial+0x17b/0x250 mm/slub.c:2731
 __slab_free+0x2b6/0x390 mm/slub.c:3679
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x75/0xe0 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x23/0x70 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:188 [inline]
 slab_post_alloc_hook+0x6c/0x3c0 mm/slab.h:763
 slab_alloc_node mm/slub.c:3478 [inline]
 slab_alloc mm/slub.c:3486 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3493 [inline]
 kmem_cache_alloc+0x19e/0x2b0 mm/slub.c:3502
 getname_flags+0xbc/0x4f0 fs/namei.c:140
 vfs_fstatat+0x11c/0x190 fs/stat.c:298
 __do_sys_newfstatat fs/stat.c:463 [inline]
 __se_sys_newfstatat fs/stat.c:457 [inline]
 __x64_sys_newfstatat+0x117/0x190 fs/stat.c:457
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

The buggy address belongs to the object at ffff88801e820000
 which belongs to the cache task_struct of size 7360
The buggy address is located 2552 bytes inside of
 freed 7360-byte region [ffff88801e820000, ffff88801e821cc0)

The buggy address belongs to the physical page:
page:ffffea00007a0800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1e820
head:ffffea00007a0800 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff88807a9e5881
flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff888014e51500 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000040004 00000001ffffffff ffff88807a9e5881
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 58, tgid 58 (kworker/u4:4), ts 6791862903, free_ts 0
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1544 [inline]
 get_page_from_freelist+0x33ea/0x3570 mm/page_alloc.c:3312
 __alloc_pages+0x255/0x680 mm/page_alloc.c:4568
 alloc_pages_mpol+0x3de/0x640 mm/mempolicy.c:2133
 alloc_slab_page+0x6a/0x170 mm/slub.c:1870
 allocate_slab mm/slub.c:2017 [inline]
 new_slab+0x84/0x2f0 mm/slub.c:2070
 ___slab_alloc+0xc8a/0x1330 mm/slub.c:3223
 __slab_alloc mm/slub.c:3322 [inline]
 __slab_alloc_node mm/slub.c:3375 [inline]
 slab_alloc_node mm/slub.c:3468 [inline]
 kmem_cache_alloc_node+0x22b/0x310 mm/slub.c:3523
 alloc_task_struct_node kernel/fork.c:173 [inline]
 dup_task_struct+0x57/0x7d0 kernel/fork.c:1110
 copy_process+0x5d1/0x3fb0 kernel/fork.c:2332
 kernel_clone+0x222/0x840 kernel/fork.c:2907
 user_mode_thread+0x132/0x190 kernel/fork.c:2985
 call_usermodehelper_exec_work+0x5c/0x220 kernel/umh.c:172
 process_one_work kernel/workqueue.c:2627 [inline]
 process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2700
 worker_thread+0xa5f/0x1000 kernel/workqueue.c:2781
 kthread+0x2d3/0x370 kernel/kthread.c:388
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88801e820880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88801e820900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88801e820980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                                ^
 ffff88801e820a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88801e820a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
   0:	48 21 c3             	and    %rax,%rbx
   3:	0f 85 fa 01 00 00    	jne    0x203
   9:	e8 f9 7b 1d 00       	call   0x1d7c07
   e:	48 8b 5c 24 38       	mov    0x38(%rsp),%rbx
  13:	4d 85 f6             	test   %r14,%r14
  16:	75 07                	jne    0x1f
  18:	e8 ea 7b 1d 00       	call   0x1d7c07
  1d:	eb 06                	jmp    0x25
  1f:	e8 e3 7b 1d 00       	call   0x1d7c07
  24:	fb                   	sti
  25:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
* 2a:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 4a 02 00 00    	jne    0x281
  37:	0f b6 1b             	movzbl (%rbx),%ebx
  3a:	31 ff                	xor    %edi,%edi
  3c:	89 de                	mov    %ebx,%esi
  3e:	e8                   	.byte 0xe8
  3f:	54                   	push   %rsp