lo: entered allmulticast mode
lo: left allmulticast mode
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 0 PID: 8331 at kernel/locking/lockdep.c:232 hlock_class kernel/locking/lockdep.c:232 [inline]
WARNING: CPU: 0 PID: 8331 at kernel/locking/lockdep.c:232 check_wait_context kernel/locking/lockdep.c:4826 [inline]
WARNING: CPU: 0 PID: 8331 at kernel/locking/lockdep.c:232 __lock_acquire+0x58c/0x2050 kernel/locking/lockdep.c:5152
Modules linked in:
CPU: 0 UID: 0 PID: 8331 Comm: syz.2.740 Not tainted 6.12.0-rc6-syzkaller-01249-g774ca6d3bf24 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:hlock_class kernel/locking/lockdep.c:232 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4826 [inline]
RIP: 0010:__lock_acquire+0x58c/0x2050 kernel/locking/lockdep.c:5152
Code: 00 00 83 3d 15 22 ad 0e 00 75 23 90 48 c7 c7 60 c9 0a 8c 48 c7 c6 00 cc 0a 8c e8 bf 7c e5 ff 48 ba 00 00 00 00 00 fc ff df 90 <0f> 0b 90 90 90 31 db 48 81 c3 c4 00 00 00 48 89 d8 48 c1 e8 03 0f
RSP: 0018:ffffc9000c5cf0f0 EFLAGS: 00010046
RAX: 8fd575aa40bb1100 RBX: 0000000000000dec RCX: ffff888058c00000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000005 R08: ffffffff8155d312 R09: 1ffffffff1d02658
R10: dffffc0000000000 R11: fffffbfff1d02659 R12: ffff888058c00000
R13: 0000000000000dec R14: 1ffff1100b180165 R15: ffff888058c00b28
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efef8c67d60 CR3: 000000000e734000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
 down+0x39/0xc0 kernel/locking/semaphore.c:59
 __dev_close_many+0x107/0x300 net/core/dev.c:1532
 dev_close_many+0x24e/0x4c0 net/core/dev.c:1585
 unregister_netdevice_many_notify+0x530/0x1da0 net/core/dev.c:11455
 unregister_netdevice_many net/core/dev.c:11545 [inline]
 unregister_netdevice_queue+0x303/0x370 net/core/dev.c:11417
 unregister_netdevice include/linux/netdevice.h:3182 [inline]
 __tun_detach+0x6b9/0x1600 drivers/net/tun.c:685
 tun_detach drivers/net/tun.c:701 [inline]
 tun_chr_close+0x105/0x1b0 drivers/net/tun.c:3517
 __fput+0x23f/0x880 fs/file_table.c:431
 task_work_run+0x24f/0x310 kernel/task_work.c:239
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0xa2f/0x28e0 kernel/exit.c:939
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x16a3/0x1740 kernel/signal.c:2917
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 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: 0033:0x7f9aec77e719
Code: Unable to access opcode bytes at 0x7f9aec77e6ef.
RSP: 002b:00007f9aed63b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: 0000000000000000 RBX: 00007f9aec936058 RCX: 00007f9aec77e719
RDX: 0000000000000001 RSI: 0000000000000107 RDI: 00000000000000fa
RBP: 00007f9aec7f139e R08: 0000000000000010 R09: 0000000000000000
R10: 00000000200001c0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9aec936058 R15: 00007ffcb4013a08
 </TASK>