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
[   26.491260][ T3176] 8021q: adding VLAN 0 to HW filter on device bond0
[   26.503702][ T3176] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.1.81' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   49.304620][ T3592] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor387/3592
[   49.314476][ T3592] caller is netdev_core_stats_alloc+0x98/0x110
[   49.320636][ T3592] CPU: 0 PID: 3592 Comm: syz-executor387 Not tainted 5.17.0-rc7-syzkaller-02426-g97aeb877de7f #0
[   49.331115][ T3592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.341168][ T3592] Call Trace:
[   49.344432][ T3592]  <TASK>
[   49.347346][ T3592]  dump_stack_lvl+0xcd/0x134
[   49.351921][ T3592]  check_preemption_disabled+0x16b/0x170
[   49.357540][ T3592]  netdev_core_stats_alloc+0x98/0x110
[   49.362900][ T3592]  tun_get_user+0x342b/0x3ab0
[   49.367584][ T3592]  ? tun_build_skb+0x1010/0x1010
[   49.372514][ T3592]  ? lock_downgrade+0x6e0/0x6e0
[   49.377356][ T3592]  tun_chr_write_iter+0xe1/0x200
[   49.382278][ T3592]  new_sync_write+0x431/0x660
[   49.386939][ T3592]  ? new_sync_read+0x6e0/0x6e0
[   49.391694][ T3592]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   49.397918][ T3592]  ? security_file_permission+0xab/0xd0
[   49.403449][ T3592]  vfs_write+0x7cd/0xae0
[   49.407689][ T3592]  ksys_write+0x12d/0x250
[   49.412001][ T3592]  ? __ia32_sys_read+0xb0/0xb0
[   49.416750][ T3592]  ? syscall_enter_from_user_mode+0x21/0x70
[   49.422642][ T3592]  do_syscall_64+0x35/0xb0
[   49.427052][ T3592]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   49.432940][ T3592] RIP: 0033:0x7fb3d6eed7e3
[   49.437365][ T3592] 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
[   49.456952][ T3592] RSP: 002b:00007ffc0e25b538 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   49.465345][ T3592] RAX: ffffffffffffffda RBX: 00007ffc0e25b560 RCX: 00007fb3d6eed7e3
[   49.473295][ T3592] RDX: 0000000013999fbc RSI: 0000000000000000 RDI: 00000000000000c8
[   49.481244][ T3592] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
[   49.489298][ T3592] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   49.497248][ T3592] R13: 00007ffc0e25b550 R14: 00007ffc0e25b548 R15: 00007ffc0e25b544
[   49.505210][ T3592]  </TASK>