==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x74/0x1ff0 kernel/locking/lockdep.c:4882
Read of size 8 at addr ffff8880228627e8 by task kworker/1:14/5094

CPU: 1 PID: 5094 Comm: kworker/1:14 Not tainted 5.15.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: rcu_gp process_srcu
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 print_address_description+0x63/0x3b0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x16b/0x1c0 mm/kasan/report.c:451
 __lock_acquire+0x74/0x1ff0 kernel/locking/lockdep.c:4882
 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
 try_to_wake_up+0xae/0x1300 kernel/sched/core.c:4030
 call_timer_fn+0x16d/0x560 kernel/time/timer.c:1451
 expire_timers kernel/time/timer.c:1496 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1767
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
 __do_softirq+0x3b3/0x93a kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x155/0x240 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:delay_tsc+0x58/0xd0 arch/x86/lib/delay.c:79
Code: 90 48 89 d5 48 c1 e5 20 48 09 c5 48 29 dd 4c 39 f5 73 67 bf 01 00 00 00 e8 25 d1 26 fd 65 8b 05 f6 de d1 7b 85 c0 74 2f f3 90 <bf> 01 00 00 00 e8 8e cf 26 fd e8 79 20 ed 05 41 39 c7 75 20 0f 01
RSP: 0018:ffffc90003827ae0 EFLAGS: 00000286
RAX: 0000000080000000 RBX: 0000003a590339be RCX: 0000000000000001
RDX: 000000000000003a RSI: ffffffff8ad8f360 RDI: 0000000000000001
RBP: 0000000000001e06 R08: ffffffff842b3404 R09: fffff52000704f2d
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000005036
R13: 1ffffffff1bc8b9f R14: 0000000000002af9 R15: 0000000000000001
 try_check_zero+0x2f2/0x360 kernel/rcu/srcutree.c:702
 srcu_advance_state kernel/rcu/srcutree.c:1227 [inline]
 process_srcu+0x1aa/0xc20 kernel/rcu/srcutree.c:1325
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300
 </TASK>

Allocated by task 2:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 __kasan_slab_alloc+0x8e/0xc0 mm/kasan/common.c:467
 kasan_slab_alloc include/linux/kasan.h:254 [inline]
 slab_post_alloc_hook+0x53/0x380 mm/slab.h:519
 slab_alloc_node mm/slub.c:3220 [inline]
 kmem_cache_alloc_node+0x121/0x2c0 mm/slub.c:3256
 alloc_task_struct_node kernel/fork.c:171 [inline]
 dup_task_struct+0x57/0xb60 kernel/fork.c:894
 copy_process+0x5eb/0x3ef0 kernel/fork.c:2038
 kernel_clone+0x210/0x960 kernel/fork.c:2604
 kernel_thread+0x168/0x1e0 kernel/fork.c:2656
 create_kthread kernel/kthread.c:357 [inline]
 kthreadd+0x57a/0x740 kernel/kthread.c:701
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300

Freed by task 3955:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4b/0x80 mm/kasan/common.c:46
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
 ____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1705 [inline]
 slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731
 slab_free mm/slub.c:3499 [inline]
 kmem_cache_free+0x91/0x1f0 mm/slub.c:3515
 rcu_do_batch kernel/rcu/tree.c:2523 [inline]
 rcu_core+0xa15/0x1650 kernel/rcu/tree.c:2763
 __do_softirq+0x3b3/0x93a kernel/softirq.c:558

Last potentially related work creation:
 kasan_save_stack+0x36/0x60 mm/kasan/common.c:38
 kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:348
 __call_rcu kernel/rcu/tree.c:3007 [inline]
 call_rcu+0x1c4/0xa70 kernel/rcu/tree.c:3087
 context_switch kernel/sched/core.c:5033 [inline]
 __schedule+0x12cc/0x45b0 kernel/sched/core.c:6376
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6780
 irqentry_exit+0x53/0x80 kernel/entry/common.c:432
 asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:643

Second to last potentially related work creation:
 kasan_save_stack+0x36/0x60 mm/kasan/common.c:38
 kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:348
 __call_rcu kernel/rcu/tree.c:3007 [inline]
 call_rcu+0x1c4/0xa70 kernel/rcu/tree.c:3087
 schedule_tail+0xc/0xb0 kernel/sched/core.c:4966
 ret_from_fork+0x8/0x30 arch/x86/entry/entry_64.S:285

The buggy address belongs to the object at ffff888022861dc0
 which belongs to the cache task_struct of size 7360
The buggy address is located 2600 bytes inside of
 7360-byte region [ffff888022861dc0, ffff888022863a80)
The buggy address belongs to the page:
page:ffffea00008a1800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x22860
head:ffffea00008a1800 order:3 compound_mapcount:0 compound_pincount:0
memcg:ffff88801e4f95c1
flags: 0xfff80000010200(slab|head|node=0|zone=1|lastcpupid=0xfff)
raw: 00fff80000010200 0000000000000000 0000000100000001 ffff8881400063c0
raw: 0000000000000000 0000000000040004 00000001ffffffff ffff88801e4f95c1
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, ts 8662522133, free_ts 0
 prep_new_page mm/page_alloc.c:2426 [inline]
 get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159
 __alloc_pages+0x272/0x700 mm/page_alloc.c:5423
 alloc_slab_page mm/slub.c:1775 [inline]
 allocate_slab mm/slub.c:1912 [inline]
 new_slab+0xbb/0x4b0 mm/slub.c:1975
 ___slab_alloc+0x6f6/0xe10 mm/slub.c:3008
 __slab_alloc mm/slub.c:3095 [inline]
 slab_alloc_node mm/slub.c:3186 [inline]
 kmem_cache_alloc_node+0x1ba/0x2c0 mm/slub.c:3256
 alloc_task_struct_node kernel/fork.c:171 [inline]
 dup_task_struct+0x57/0xb60 kernel/fork.c:894
 copy_process+0x5eb/0x3ef0 kernel/fork.c:2038
 kernel_clone+0x210/0x960 kernel/fork.c:2604
 kernel_thread+0x168/0x1e0 kernel/fork.c:2656
 create_kthread kernel/kthread.c:357 [inline]
 kthreadd+0x57a/0x740 kernel/kthread.c:701
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888022862680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888022862700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888022862780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                          ^
 ffff888022862800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888022862880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	48 89 d5             	mov    %rdx,%rbp
   4:	48 c1 e5 20          	shl    $0x20,%rbp
   8:	48 09 c5             	or     %rax,%rbp
   b:	48 29 dd             	sub    %rbx,%rbp
   e:	4c 39 f5             	cmp    %r14,%rbp
  11:	73 67                	jae    0x7a
  13:	bf 01 00 00 00       	mov    $0x1,%edi
  18:	e8 25 d1 26 fd       	call   0xfd26d142
  1d:	65 8b 05 f6 de d1 7b 	mov    %gs:0x7bd1def6(%rip),%eax        # 0x7bd1df1a
  24:	85 c0                	test   %eax,%eax
  26:	74 2f                	je     0x57
  28:	f3 90                	pause
* 2a:	bf 01 00 00 00       	mov    $0x1,%edi <-- trapping instruction
  2f:	e8 8e cf 26 fd       	call   0xfd26cfc2
  34:	e8 79 20 ed 05       	call   0x5ed20b2
  39:	41 39 c7             	cmp    %eax,%r15d
  3c:	75 20                	jne    0x5e
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1