==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x77/0x1f80 kernel/locking/lockdep.c:4919
Read of size 8 at addr ffff888019a527d8 by task syz-executor.3/7611

CPU: 1 PID: 7611 Comm: syz-executor.3 Not tainted 6.1.89-syzkaller #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+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x15f/0x4f0 mm/kasan/report.c:395
 kasan_report+0x136/0x160 mm/kasan/report.c:495
 __lock_acquire+0x77/0x1f80 kernel/locking/lockdep.c:4919
 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
 __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+0xad/0x12e0 kernel/sched/core.c:4112
 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1549 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 __do_softirq+0x2e9/0xa4c kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x155/0x240 kernel/softirq.c:650
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:__bpf_prog_run include/linux/filter.h:603 [inline]
RIP: 0010:bpf_prog_run include/linux/filter.h:610 [inline]
RIP: 0010:bpf_test_run+0x3f7/0x8b0 net/bpf/test_run.c:402
Code: 24 38 e8 fc 48 d1 ff 41 89 c6 0f 1f 44 00 00 e8 0f f8 cd f8 eb 2f 0f 1f 44 00 00 e8 03 f8 cd f8 48 8b 44 24 30 42 80 3c 20 00 <74> 08 4c 89 ef e8 2f 6f 25 f9 48 8b 7c 24 28 48 8b 74 24 38 41 ff
RSP: 0018:ffffc900053b79c0 EFLAGS: 00000246
RAX: 1ffff92000a88206 RBX: ffffc900053b7aa0 RCX: 0000000000040000
RDX: ffffc90003ae1000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc900053b7bb0 R08: ffffffff88bcec27 R09: ffffed100efd63b9
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffc90005441030 R14: 0000000000000000 R15: ffffc900053b7cc0
 bpf_prog_test_run_skb+0xaf1/0x13a0 net/bpf/test_run.c:1180
 bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3670
 __sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:5023
 __do_sys_bpf kernel/bpf/syscall.c:5109 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5107 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5107
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f6d7927dea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f6d79f520c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f6d793abf80 RCX: 00007f6d7927dea9
RDX: 0000000000000050 RSI: 0000000020000180 RDI: 000000000000000a
RBP: 00007f6d792ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f6d793abf80 R15: 00007fff07a16568
 </TASK>

Allocated by task 2:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737
 slab_alloc_node mm/slub.c:3398 [inline]
 kmem_cache_alloc_node+0x136/0x310 mm/slub.c:3443
 alloc_task_struct_node kernel/fork.c:171 [inline]
 dup_task_struct+0x57/0x6d0 kernel/fork.c:980
 copy_process+0x637/0x4060 kernel/fork.c:2098
 kernel_clone+0x222/0x920 kernel/fork.c:2682
 kernel_thread+0x152/0x1d0 kernel/fork.c:2742
 create_kthread kernel/kthread.c:399 [inline]
 kthreadd+0x596/0x760 kernel/kthread.c:746
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

Freed by task 4338:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1724 [inline]
 slab_free_freelist_hook mm/slub.c:1750 [inline]
 slab_free mm/slub.c:3661 [inline]
 kmem_cache_free+0x292/0x510 mm/slub.c:3683
 rcu_do_batch kernel/rcu/tree.c:2296 [inline]
 rcu_core+0xad5/0x1810 kernel/rcu/tree.c:2556
 __do_softirq+0x2e9/0xa4c kernel/softirq.c:571

Last potentially related work creation:
 kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486
 call_rcu+0x163/0xa10 kernel/rcu/tree.c:2844
 context_switch kernel/sched/core.c:5248 [inline]
 __schedule+0x1435/0x4550 kernel/sched/core.c:6558
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
 irqentry_exit+0x53/0x80 kernel/entry/common.c:439
 asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:658

Second to last potentially related work creation:
 kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486
 call_rcu+0x163/0xa10 kernel/rcu/tree.c:2844
 context_switch kernel/sched/core.c:5248 [inline]
 __schedule+0x1435/0x4550 kernel/sched/core.c:6558
 preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:6727
 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6751
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x36/0x40 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 copy_pte_range mm/memory.c:1116 [inline]
 copy_pmd_range mm/memory.c:1177 [inline]
 copy_pud_range mm/memory.c:1214 [inline]
 copy_p4d_range mm/memory.c:1238 [inline]
 copy_page_range+0x3ca3/0x4660 mm/memory.c:1336
 dup_mmap kernel/fork.c:696 [inline]
 dup_mm kernel/fork.c:1540 [inline]
 copy_mm+0xf42/0x1990 kernel/fork.c:1589
 copy_process+0x19d5/0x4060 kernel/fork.c:2267
 kernel_clone+0x222/0x920 kernel/fork.c:2682
 __do_sys_clone kernel/fork.c:2823 [inline]
 __se_sys_clone kernel/fork.c:2807 [inline]
 __x64_sys_clone+0x231/0x280 kernel/fork.c:2807
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff888019a51dc0
 which belongs to the cache task_struct of size 7360
The buggy address is located 2584 bytes inside of
 7360-byte region [ffff888019a51dc0, ffff888019a53a80)

The buggy address belongs to the physical page:
page:ffffea0000669400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x19a50
head:ffffea0000669400 order:3 compound_mapcount:0 compound_pincount:0
memcg:ffff88805fdb8601
flags: 0xfff80000010200(slab|head|node=0|zone=1|lastcpupid=0xfff)
raw: 00fff80000010200 dead000000000100 dead000000000122 ffff888140008500
raw: 0000000000000000 0000000000040004 00000001ffffffff ffff88805fdb8601
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 2, tgid 2 (kthreadd), ts 253749475865, free_ts 253123683310
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2513
 prep_new_page mm/page_alloc.c:2520 [inline]
 get_page_from_freelist+0x31a1/0x3320 mm/page_alloc.c:4279
 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5547
 alloc_slab_page+0x6a/0x150 mm/slub.c:1794
 allocate_slab mm/slub.c:1939 [inline]
 new_slab+0x84/0x2d0 mm/slub.c:1992
 ___slab_alloc+0xc20/0x1270 mm/slub.c:3180
 __slab_alloc mm/slub.c:3279 [inline]
 slab_alloc_node mm/slub.c:3364 [inline]
 kmem_cache_alloc_node+0x1cf/0x310 mm/slub.c:3443
 alloc_task_struct_node kernel/fork.c:171 [inline]
 dup_task_struct+0x57/0x6d0 kernel/fork.c:980
 copy_process+0x637/0x4060 kernel/fork.c:2098
 kernel_clone+0x222/0x920 kernel/fork.c:2682
 kernel_thread+0x152/0x1d0 kernel/fork.c:2742
 create_kthread kernel/kthread.c:399 [inline]
 kthreadd+0x596/0x760 kernel/kthread.c:746
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1440 [inline]
 free_pcp_prepare mm/page_alloc.c:1490 [inline]
 free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3358
 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3453
 free_slab mm/slub.c:2031 [inline]
 discard_slab mm/slub.c:2037 [inline]
 __unfreeze_partials+0x1b7/0x210 mm/slub.c:2586
 put_cpu_partial+0x17b/0x250 mm/slub.c:2662
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x156/0x170 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737
 slab_alloc_node mm/slub.c:3398 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc+0x10c/0x2d0 mm/slub.c:3422
 kmem_cache_zalloc include/linux/slab.h:682 [inline]
 jbd2_alloc_handle include/linux/jbd2.h:1594 [inline]
 new_handle fs/jbd2/transaction.c:476 [inline]
 jbd2__journal_start+0x144/0x5c0 fs/jbd2/transaction.c:503
 __ext4_journal_start_sb+0x19b/0x410 fs/ext4/ext4_jbd2.c:105
 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
 __ext4_unlink+0x412/0xba0 fs/ext4/namei.c:3265
 ext4_unlink+0x1d5/0x670 fs/ext4/namei.c:3324
 vfs_unlink+0x359/0x5f0 fs/namei.c:4324
 do_unlinkat+0x4a5/0x820 fs/namei.c:4392
 __do_sys_unlink fs/namei.c:4440 [inline]
 __se_sys_unlink fs/namei.c:4438 [inline]
 __x64_sys_unlink+0x45/0x50 fs/namei.c:4438

Memory state around the buggy address:
 ffff888019a52680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888019a52700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888019a52780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                    ^
 ffff888019a52800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888019a52880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
   0:	24 38                	and    $0x38,%al
   2:	e8 fc 48 d1 ff       	call   0xffd14903
   7:	41 89 c6             	mov    %eax,%r14d
   a:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   f:	e8 0f f8 cd f8       	call   0xf8cdf823
  14:	eb 2f                	jmp    0x45
  16:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  1b:	e8 03 f8 cd f8       	call   0xf8cdf823
  20:	48 8b 44 24 30       	mov    0x30(%rsp),%rax
  25:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
* 2a:	74 08                	je     0x34 <-- trapping instruction
  2c:	4c 89 ef             	mov    %r13,%rdi
  2f:	e8 2f 6f 25 f9       	call   0xf9256f63
  34:	48 8b 7c 24 28       	mov    0x28(%rsp),%rdi
  39:	48 8b 74 24 38       	mov    0x38(%rsp),%rsi
  3e:	41                   	rex.B
  3f:	ff                   	.byte 0xff