------------[ cut here ]------------
lockdep bfs error:-1
WARNING: CPU: 0 PID: 22830 at kernel/locking/lockdep.c:2070 print_bfs_bug+0x24/0x30 kernel/locking/lockdep.c:2070
Modules linked in:
CPU: 0 UID: 0 PID: 22830 Comm: syz-executor.0 Not tainted 6.11.0-rc4-syzkaller-00255-gd2bafcf224f3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:print_bfs_bug+0x24/0x30 kernel/locking/lockdep.c:2070
Code: 90 90 90 90 90 90 55 53 89 fb e8 97 93 34 03 89 c5 e8 70 1a ff ff 85 ed 74 14 90 48 c7 c7 c0 ec ea 8b 89 de e8 8d 48 e5 ff 90 <0f> 0b 90 90 5b 5d c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000abf6708 EFLAGS: 00010046
RAX: 8c01eb7a5697f700 RBX: 00000000ffffffff RCX: ffff88806dd2bc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8155b3f2 R09: 1ffff1101724519a
R10: dffffc0000000000 R11: ffffed101724519b R12: dffffc0000000001
R13: ffffffff947fdd68 R14: ffffffff9333ef58 R15: ffffffff947fdcf8
FS:  0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f24e341df00 CR3: 000000007a066000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 check_irq_usage kernel/locking/lockdep.c:2805 [inline]
 check_prev_add kernel/locking/lockdep.c:3137 [inline]
 check_prevs_add kernel/locking/lockdep.c:3252 [inline]
 validate_chain+0x47f5/0x5900 kernel/locking/lockdep.c:3868
 __lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5142
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 alloc_object+0x1ba/0x6d0 lib/debugobjects.c:234
 lookup_object_or_alloc lib/debugobjects.c:588 [inline]
 debug_object_activate+0x249/0x510 lib/debugobjects.c:711
 debug_rcu_head_queue kernel/rcu/rcu.h:227 [inline]
 __call_rcu_common kernel/rcu/tree.c:3091 [inline]
 call_rcu+0x97/0xa70 kernel/rcu/tree.c:3210
 thread_stack_delayed_free kernel/fork.c:234 [inline]
 free_thread_stack kernel/fork.c:340 [inline]
 release_task_stack kernel/fork.c:575 [inline]
 put_task_stack+0x1a5/0x230 kernel/fork.c:582
 finish_task_switch+0x37a/0x870 kernel/sched/core.c:5095
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x17b6/0x4a10 kernel/sched/core.c:6529
 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708
 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 zap_pte_range mm/memory.c:1688 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x3818/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x264/0xc80 mm/mmap.c:3412
 __mmput+0x115/0x380 kernel/fork.c:1345
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x27f0 kernel/exit.c:869
 do_group_exit+0x207/0x2c0 kernel/exit.c:1031
 get_signal+0x1695/0x1730 kernel/signal.c:2917
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f24e267dda9
Code: Unable to access opcode bytes at 0x7f24e267dd7f.
RSP: 002b:00007f24e341e178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f24e27abf88 RCX: 00007f24e267dda9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f24e27abf88
RBP: 00007f24e27abf80 R08: 00007f24e341e6c0 R09: 00007f24e341e6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f24e27abf8c
R13: 000000000000000b R14: 00007ffe58248400 R15: 00007ffe582484e8
 </TASK>