€: renamed from tunl0 (while UP)
------------[ cut here ]------------
WARNING: CPU: 0 PID: 29658 at net/core/dev.c:10876 netdev_has_any_lower_dev net/core/dev.c:6836 [inline]
WARNING: CPU: 0 PID: 29658 at net/core/dev.c:10876 unregister_netdevice_many_notify+0xed4/0x137c net/core/dev.c:10877
Modules linked in:
CPU: 0 PID: 29658 Comm: syz-executor.0 Not tainted 6.5.0-rc6-syzkaller-00036-g4853c74bd7ab #0
Hardware name: linux,dummy-virt (DT)
pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : unregister_netdevice_many_notify+0xed4/0x137c net/core/dev.c:10876
lr : unregister_netdevice_many_notify+0xa00/0x137c net/core/dev.c:10876
sp : ffff80008c2977e0
x29: ffff80008c2977f0 x28: ffff000015e720d0 x27: 0000000000000002
x26: ffff00000fb89880 x25: ffff00000fb89880 x24: ffff00000fb89880
x23: ffff80008c297940 x22: ffff8000859db580 x21: dfff800000000000
x20: ffff000015e72000 x19: ffff80008c2979b0 x18: ffff00000e84a620
x17: 1ffff00011852ec2 x16: 0000000000000002 x15: 1fffe00001d094c3
x14: 000000000000011b x13: 1fffe00001d094c0 x12: ffff700010ee65d1
x11: 1ffff00010ee65d0 x10: ffff700010ee65d0 x9 : dfff800000000000
x8 : 00008fffef119a30 x7 : ffff800087732e87 x6 : 0000000000000001
x5 : ffff800087732e80 x4 : ffff700010ee65d1 x3 : ffff80008029e5f0
x2 : 1fffe00002bce414 x1 : ffff000016285120 x0 : 0000000000000001
Call trace:
 netdev_has_any_lower_dev net/core/dev.c:6836 [inline]
 unregister_netdevice_many_notify+0xed4/0x137c net/core/dev.c:10877
 unregister_netdevice_many net/core/dev.c:10906 [inline]
 unregister_netdevice_queue+0x24c/0x30c net/core/dev.c:10786
 unregister_vlan_dev+0x1e4/0x3d8 net/8021q/vlan.c:118
 vlan_ioctl_handler+0x294/0x924 net/8021q/vlan.c:627
 sock_ioctl+0x484/0x5f4 net/socket.c:1271
 compat_sock_ioctl_trans net/socket.c:3362 [inline]
 compat_sock_ioctl+0x25c/0x508 net/socket.c:3435
 __do_compat_sys_ioctl fs/ioctl.c:968 [inline]
 __se_compat_sys_ioctl fs/ioctl.c:910 [inline]
 __arm64_compat_sys_ioctl+0x1d4/0x220 fs/ioctl.c:910
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:52
 el0_svc_common.constprop.0+0xc4/0x244 arch/arm64/kernel/syscall.c:139
 do_el0_svc_compat+0x40/0x70 arch/arm64/kernel/syscall.c:194
 el0_svc_compat+0x4c/0x134 arch/arm64/kernel/entry-common.c:786
 el0t_32_sync_handler+0x98/0x13c arch/arm64/kernel/entry-common.c:796
 el0t_32_sync+0x194/0x198 arch/arm64/kernel/entry.S:596
irq event stamp: 8094
hardirqs last  enabled at (8093): [<ffff800084c2e670>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (8093): [<ffff800084c2e670>] _raw_spin_unlock_irqrestore+0x80/0xac kernel/locking/spinlock.c:194
hardirqs last disabled at (8094): [<ffff800084c06d44>] el1_dbg+0x24/0x9c arch/arm64/kernel/entry-common.c:407
softirqs last  enabled at (8066): [<ffff800080011028>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last  enabled at (8066): [<ffff800080011028>] __do_softirq+0x888/0xe1c kernel/softirq.c:582
softirqs last disabled at (8061): [<ffff80008001961c>] ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
unregister_netdevice: waiting for vlan0 to become free. Usage count = 3
ref_tracker: vlan0@00000000dbbad917 has 1/2 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4077 [inline]
     netdev_hold include/linux/netdevice.h:4106 [inline]
     netdev_hold include/linux/netdevice.h:4101 [inline]
     __netdev_adjacent_dev_insert+0x2e8/0x864 net/core/dev.c:7464
     __netdev_adjacent_dev_link_lists net/core/dev.c:7552 [inline]
     __netdev_adjacent_dev_link_neighbour net/core/dev.c:7576 [inline]
     __netdev_upper_dev_link+0x2b4/0x594 net/core/dev.c:7636
     netdev_upper_dev_link+0x80/0xb0 net/core/dev.c:7682
     register_vlan_dev+0x270/0x69c net/8021q/vlan.c:183
     register_vlan_device net/8021q/vlan.c:277 [inline]
     vlan_ioctl_handler+0x590/0x924 net/8021q/vlan.c:620
     sock_ioctl+0x484/0x5f4 net/socket.c:1271
     compat_sock_ioctl_trans net/socket.c:3362 [inline]
     compat_sock_ioctl+0x25c/0x508 net/socket.c:3435
     __do_compat_sys_ioctl fs/ioctl.c:968 [inline]
     __se_compat_sys_ioctl fs/ioctl.c:910 [inline]
     __arm64_compat_sys_ioctl+0x1d4/0x220 fs/ioctl.c:910
     __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
     invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:52
     el0_svc_common.constprop.0+0xc4/0x244 arch/arm64/kernel/syscall.c:139
     do_el0_svc_compat+0x40/0x70 arch/arm64/kernel/syscall.c:194
     el0_svc_compat+0x4c/0x134 arch/arm64/kernel/entry-common.c:786
     el0t_32_sync_handler+0x98/0x13c arch/arm64/kernel/entry-common.c:796
     el0t_32_sync+0x194/0x198 arch/arm64/kernel/entry.S:596

ref_tracker: vlan0@00000000dbbad917 has 1/2 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4077 [inline]
     netdev_hold include/linux/netdevice.h:4106 [inline]
     vlan_dev_init+0x7dc/0xb60 net/8021q/vlan_dev.c:622
     register_netdevice+0x420/0x1048 net/core/dev.c:9981
     register_vlan_dev+0x258/0x69c net/8021q/vlan.c:179
     register_vlan_device net/8021q/vlan.c:277 [inline]
     vlan_ioctl_handler+0x590/0x924 net/8021q/vlan.c:620
     sock_ioctl+0x484/0x5f4 net/socket.c:1271
     compat_sock_ioctl_trans net/socket.c:3362 [inline]
     compat_sock_ioctl+0x25c/0x508 net/socket.c:3435
     __do_compat_sys_ioctl fs/ioctl.c:968 [inline]
     __se_compat_sys_ioctl fs/ioctl.c:910 [inline]
     __arm64_compat_sys_ioctl+0x1d4/0x220 fs/ioctl.c:910
     __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
     invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:52
     el0_svc_common.constprop.0+0xc4/0x244 arch/arm64/kernel/syscall.c:139
     do_el0_svc_compat+0x40/0x70 arch/arm64/kernel/syscall.c:194
     el0_svc_compat+0x4c/0x134 arch/arm64/kernel/entry-common.c:786
     el0t_32_sync_handler+0x98/0x13c arch/arm64/kernel/entry-common.c:796
     el0t_32_sync+0x194/0x198 arch/arm64/kernel/entry.S:596

unregister_netdevice: waiting for vlan0 to become free. Usage count = 3
ref_tracker: vlan0@00000000dbbad917 has 1/2 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4077 [inline]
     netdev_hold include/linux/netdevice.h:4106 [inline]
     netdev_hold include/linux/netdevice.h:4101 [inline]
     __netdev_adjacent_dev_insert+0x2e8/0x864 net/core/dev.c:7464
     __netdev_adjacent_dev_link_lists net/core/dev.c:7552 [inline]
     __netdev_adjacent_dev_link_neighbour net/core/dev.c:7576 [inline]
     __netdev_upper_dev_link+0x2b4/0x594 net/core/dev.c:7636
     netdev_upper_dev_link+0x80/0xb0 net/core/dev.c:7682
     register_vlan_dev+0x270/0x69c net/8021q/vlan.c:183
     register_vlan_device net/8021q/vlan.c:277 [inline]
     vlan_ioctl_handler+0x590/0x924 net/8021q/vlan.c:620
     sock_ioctl+0x484/0x5f4 net/socket.c:1271
     compat_sock_ioctl_trans net/socket.c:3362 [inline]
     compat_sock_ioctl+0x25c/0x508 net/socket.c:3435
     __do_compat_sys_ioctl fs/ioctl.c:968 [inline]
     __se_compat_sys_ioctl fs/ioctl.c:910 [inline]
     __arm64_compat_sys_ioctl+0x1d4/0x220 fs/ioctl.c:910
     __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
     invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:52
     el0_svc_common.constprop.0+0xc4/0x244 arch/arm64/kernel/syscall.c:139
     do_el0_svc_compat+0x40/0x70 arch/arm64/kernel/syscall.c:194
     el0_svc_compat+0x4c/0x134 arch/arm64/kernel/entry-common.c:786
     el0t_32_sync_handler+0x98/0x13c arch/arm64/kernel/entry-common.c:796
     el0t_32_sync+0x194/0x198 arch/arm64/kernel/entry.S:596

ref_tracker: vlan0@00000000dbbad917 has 1/2 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4077 [inline]
     netdev_hold include/linux/netdevice.h:4106 [inline]
     vlan_dev_init+0x7dc/0xb60 net/8021q/vlan_dev.c:622
     register_netdevice+0x420/0x1048 net/core/dev.c:9981
     register_vlan_dev+0x258/0x69c net/8021q/vlan.c:179
     register_vlan_device net/8021q/vlan.c:277 [inline]
     vlan_ioctl_handler+0x590/0x924 net/8021q/vlan.c:620
     sock_ioctl+0x484/0x5f4 net/socket.c:1271
     compat_sock_ioctl_trans net/socket.c:3362 [inline]
     compat_sock_ioctl+0x25c/0x508 net/socket.c:3435
     __do_compat_sys_ioctl fs/ioctl.c:968 [inline]
     __se_compat_sys_ioctl fs/ioctl.c:910 [inline]
     __arm64_compat_sys_ioctl+0x1d4/0x220 fs/ioctl.c:910
     __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
     invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:52
     el0_svc_common.constprop.0+0xc4/0x244 arch/arm64/kernel/syscall.c:139
     do_el0_svc_compat+0x40/0x70 arch/arm64/kernel/syscall.c:194
     el0_svc_compat+0x4c/0x134 arch/arm64/kernel/entry-common.c:786
     el0t_32_sync_handler+0x98/0x13c arch/arm64/kernel/entry-common.c:796
     el0t_32_sync+0x194/0x198 arch/arm64/kernel/entry.S:596