------------[ cut here ]------------
kernel BUG at net/core/net-sysfs.c:1631!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 15445 Comm: syz-executor.3 Not tainted 5.1.0-rc4+ #86
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:netdev_release net/core/net-sysfs.c:1631 [inline]
RIP: 0010:netdev_release+0x92/0xb0 net/core/net-sysfs.c:1627
Code: 48 c1 ea 03 80 3c 02 00 75 29 48 8b bb 80 fa ff ff e8 12 e5 20 fc 4c 89 ef e8 ea a8 f5 ff 5b 41 5c 41 5d 5d c3 e8 be ad e8 fb <0f> 0b e8 37 1f 21 fc eb 9c e8 90 1f 21 fc eb d0 0f 1f 40 00 66 2e
RSP: 0018:ffff8880858af9e8 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88808a67c0e0 RCX: ffffc9000c436000
RDX: 0000000000040000 RSI: ffffffff8587e142 RDI: 0000000000000001
RBP: ffff8880858afa00 R08: ffff888066e6a100 R09: ffff888066e6a9a0
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88808a67bb40 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f0a7887e700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000625208 CR3: 0000000099f18000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 device_release+0x7d/0x210 drivers/base/core.c:1064
 kobject_cleanup lib/kobject.c:662 [inline]
 kobject_release lib/kobject.c:691 [inline]
 kref_put include/linux/kref.h:67 [inline]
 kobject_put.cold+0x28f/0x2ec lib/kobject.c:708
 put_device+0x20/0x30 drivers/base/core.c:2205
 netdev_register_kobject+0x1a1/0x3c0 net/core/net-sysfs.c:1763
 register_netdevice+0x878/0xff0 net/core/dev.c:8727
 tun_set_iff drivers/net/tun.c:2842 [inline]
 __tun_chr_ioctl+0x2788/0x3f40 drivers/net/tun.c:3075
 tun_chr_ioctl+0x2b/0x40 drivers/net/tun.c:3355
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:509 [inline]
 do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696
 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl fs/ioctl.c:718 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458c29
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f0a7887dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f0a7887dc90 RCX: 0000000000458c29
RDX: 0000000020000580 RSI: 00000000400454ca RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0a7887e6d4
R13: 00000000004c328b R14: 00000000004d66e0 R15: 0000000000000004
Modules linked in:
---[ end trace 9803f8821a98554d ]---
RIP: 0010:netdev_release net/core/net-sysfs.c:1631 [inline]
RIP: 0010:netdev_release+0x92/0xb0 net/core/net-sysfs.c:1627
Code: 48 c1 ea 03 80 3c 02 00 75 29 48 8b bb 80 fa ff ff e8 12 e5 20 fc 4c 89 ef e8 ea a8 f5 ff 5b 41 5c 41 5d 5d c3 e8 be ad e8 fb <0f> 0b e8 37 1f 21 fc eb 9c e8 90 1f 21 fc eb d0 0f 1f 40 00 66 2e
RSP: 0018:ffff8880858af9e8 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88808a67c0e0 RCX: ffffc9000c436000
RDX: 0000000000040000 RSI: ffffffff8587e142 RDI: 0000000000000001
RBP: ffff8880858afa00 R08: ffff888066e6a100 R09: ffff888066e6a9a0
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88808a67bb40 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f0a7887e700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000738000 CR3: 0000000099f18000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600