------------[ cut here ]------------
WARNING: CPU: 0 PID: 5849 at ./include/net/netdev_lock.h:17 netdev_assert_locked include/net/netdev_lock.h:17 [inline]
WARNING: CPU: 0 PID: 5849 at ./include/net/netdev_lock.h:17 netdev_nl_dev_fill+0x6bc/0x860 net/core/netdev-genl.c:41
Modules linked in:
CPU: 0 UID: 0 PID: 5849 Comm: syz-executor Not tainted 6.15.0-rc1-syzkaller-00412-g4e34a840613b #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:netdev_assert_locked include/net/netdev_lock.h:17 [inline]
RIP: 0010:netdev_nl_dev_fill+0x6bc/0x860 net/core/netdev-genl.c:41
Code: 1c 24 44 29 eb 4c 89 e8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 4a 01 00 00 41 89 5d 00 31 c0 e9 4d fe ff ff e8 85 ec c3 f7 90 <0f> 0b 90 e9 2c fa ff ff e8 77 ec c3 f7 90 0f 0b 90 42 80 3c 3b 00
RSP: 0018:ffffc90003e5f500 EFLAGS: 00010293
RAX: ffffffff89ff68eb RBX: 0000000000000000 RCX: ffff8880635f8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003e5f630 R08: ffffffff89ff630c R09: 1ffff1100fc2b9dc
R10: dffffc0000000000 R11: ffffed100fc2b9dd R12: ffff88807c6c0000
R13: ffff888024771dc0 R14: ffff888024771dc0 R15: ffffc90003e5f680
FS:  0000000000000000(0000) GS:ffff888124fa5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000004d030 CR3: 0000000030b86000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 netdev_genl_dev_notify+0x1fb/0x450 net/core/netdev-genl.c:102
 netdev_genl_netdevice_event+0x81/0xa0 net/core/netdev-genl.c:-1
 notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
 call_netdevice_notifiers_extack net/core/dev.c:2264 [inline]
 call_netdevice_notifiers net/core/dev.c:2278 [inline]
 unregister_netdevice_many_notify+0x1572/0x2500 net/core/dev.c:12025
 unregister_netdevice_many net/core/dev.c:12088 [inline]
 unregister_netdevice_queue+0x383/0x400 net/core/dev.c:11941
 unregister_netdevice include/linux/netdevice.h:3373 [inline]
 __tun_detach+0x6d9/0x15d0 drivers/net/tun.c:620
 tun_detach drivers/net/tun.c:636 [inline]
 tun_chr_close+0x105/0x1b0 drivers/net/tun.c:3390
 __fput+0x3e9/0x9f0 fs/file_table.c:465
 task_work_run+0x251/0x310 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xa11/0x27f0 kernel/exit.c:953
 do_group_exit+0x207/0x2c0 kernel/exit.c:1102
 __do_sys_exit_group kernel/exit.c:1113 [inline]
 __se_sys_exit_group kernel/exit.c:1111 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1111
 x64_sys_call+0x26c3/0x26d0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fecc358e169
Code: Unable to access opcode bytes at 0x7fecc358e13f.
RSP: 002b:00007ffe698a91d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fecc358e169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043
RBP: 00007fecc35ebad8 R08: 00007ffe698a6f77 R09: 00000000000927c0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 0000000000000000 R15: 00007ffe698a9a70
 </TASK>