DUID 00:04:e7:a9:54:ba:d6:ca:b0:a9:a8:44:aa:dd:15:41:58:fb
forked to background, child pid 3175
[   26.979055][ T3176] 8021q: adding VLAN 0 to HW filter on device bond0
[   26.988822][ T3176] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.0.252' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   48.842586][ T3591] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor114/3591
[   48.852229][ T3591] caller is netdev_core_stats_alloc+0x98/0x110
[   48.858627][ T3591] CPU: 1 PID: 3591 Comm: syz-executor114 Not tainted 5.17.0-rc7-syzkaller-02426-g97aeb877de7f #0
[   48.869148][ T3591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.879286][ T3591] Call Trace:
[   48.882555][ T3591]  <TASK>
[   48.885474][ T3591]  dump_stack_lvl+0xcd/0x134
[   48.890055][ T3591]  check_preemption_disabled+0x16b/0x170
[   48.895681][ T3591]  netdev_core_stats_alloc+0x98/0x110
[   48.901045][ T3591]  tun_get_user+0x342b/0x3ab0
[   48.905716][ T3591]  ? tun_build_skb+0x1010/0x1010
[   48.910641][ T3591]  ? lock_downgrade+0x6e0/0x6e0
[   48.915503][ T3591]  tun_chr_write_iter+0xe1/0x200
[   48.920512][ T3591]  new_sync_write+0x431/0x660
[   48.925186][ T3591]  ? new_sync_read+0x6e0/0x6e0
[   48.930041][ T3591]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   48.936271][ T3591]  ? security_file_permission+0xab/0xd0
[   48.941831][ T3591]  vfs_write+0x7cd/0xae0
[   48.946060][ T3591]  ksys_write+0x12d/0x250
[   48.950381][ T3591]  ? __ia32_sys_read+0xb0/0xb0
[   48.955131][ T3591]  ? syscall_enter_from_user_mode+0x21/0x70
[   48.961029][ T3591]  do_syscall_64+0x35/0xb0
[   48.965429][ T3591]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   48.971309][ T3591] RIP: 0033:0x7f95dcbc18a3
[   48.975713][ 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
[   48.995312][ T3591] RSP: 002b:00007fffcfcfe1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   49.003720][ T3591] RAX: ffffffffffffffda RBX: 00007fffcfcfe210 RCX: 00007f95dcbc18a3
[   49.011677][ T3591] RDX: 000000005cf5d964 RSI: 0000000020000180 RDI: 00000000000000c8
[   49.019712][ T3591] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
[   49.027667][ T3591] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   49.035623][ T3591] R13: 00007fffcfcfe200 R14: 00007fffcfcfe1f8 R15: 00007fffcfcfe1f4
[   49.043589][ T3591]  </TASK>