DUID 00:04:80:46:6d:cf:4f:d2:f0:e0:d6:d4:98:c6:35:1e:6d:ad
forked to background, child pid 3175
[   28.635590][ T3176] 8021q: adding VLAN 0 to HW filter on device bond0
[   28.652407][ T3176] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.0.231' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   50.210333][ T3591] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor291/3591
[   50.219897][ T3591] caller is netdev_core_stats_alloc+0x98/0x110
[   50.226330][ T3591] CPU: 0 PID: 3591 Comm: syz-executor291 Not tainted 5.17.0-rc7-syzkaller-02426-g97aeb877de7f #0
[   50.236825][ T3591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.246871][ T3591] Call Trace:
[   50.250175][ T3591]  <TASK>
[   50.253090][ T3591]  dump_stack_lvl+0xcd/0x134
[   50.257671][ T3591]  check_preemption_disabled+0x16b/0x170
[   50.263298][ T3591]  netdev_core_stats_alloc+0x98/0x110
[   50.268672][ T3591]  tun_get_user+0x3455/0x3ab0
[   50.273431][ T3591]  ? tun_build_skb+0x1010/0x1010
[   50.278370][ T3591]  ? lock_downgrade+0x6e0/0x6e0
[   50.283226][ T3591]  tun_chr_write_iter+0xe1/0x200
[   50.288170][ T3591]  new_sync_write+0x431/0x660
[   50.292838][ T3591]  ? new_sync_read+0x6e0/0x6e0
[   50.297598][ T3591]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   50.303916][ T3591]  ? security_file_permission+0xab/0xd0
[   50.309458][ T3591]  vfs_write+0x7cd/0xae0
[   50.313691][ T3591]  ksys_write+0x12d/0x250
[   50.318006][ T3591]  ? __ia32_sys_read+0xb0/0xb0
[   50.322760][ T3591]  ? syscall_enter_from_user_mode+0x21/0x70
[   50.328657][ T3591]  do_syscall_64+0x35/0xb0
[   50.333058][ T3591]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   50.339045][ T3591] RIP: 0033:0x7f1b39e9d7e3
[   50.343452][ T3591] Code: 5d 41 5c 41 5d 41 5e e9 9b fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18
[   50.363050][ T3591] RSP: 002b:00007ffe9225cf08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   50.371562][ T3591] RAX: ffffffffffffffda RBX: 00007ffe9225cf30 RCX: 00007f1b39e9d7e3
[   50.379529][ T3591] RDX: 000000000000005e RSI: 0000000000000000 RDI: 00000000000000c8
[   50.387485][ T3591] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
[   50.395439][ T3591] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   50.403406][ T3591] R13: 00007ffe9225cf20 R14: 00007ffe9225cf18 R15: 00007ffe9225cf14
[   50.411369][ T3591]  </TASK>