forked to background, child pid 3177
[   26.948991][ T3178] 8021q: adding VLAN 0 to HW filter on device bond0
[   26.964766][ T3178] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: [   27.322116][ T3269] sshd (3269) used greatest stack depth: 22776 bytes left
OK

syzkaller
Warning: Permanently added '10.128.0.72' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   48.376158][ T3600] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor124/3600
[   48.385700][ T3600] caller is netdev_core_stats_alloc+0x98/0x110
[   48.392082][ T3600] CPU: 1 PID: 3600 Comm: syz-executor124 Not tainted 5.17.0-rc7-syzkaller-02426-g97aeb877de7f #0
[   48.402564][ T3600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.412597][ T3600] Call Trace:
[   48.415859][ T3600]  <TASK>
[   48.418779][ T3600]  dump_stack_lvl+0xcd/0x134
[   48.423356][ T3600]  check_preemption_disabled+0x16b/0x170
[   48.428987][ T3600]  netdev_core_stats_alloc+0x98/0x110
[   48.434356][ T3600]  tun_get_user+0x3455/0x3ab0
[   48.439033][ T3600]  ? tun_build_skb+0x1010/0x1010
[   48.443956][ T3600]  ? lock_downgrade+0x6e0/0x6e0
[   48.448810][ T3600]  tun_chr_write_iter+0xe1/0x200
[   48.453748][ T3600]  new_sync_write+0x431/0x660
[   48.458418][ T3600]  ? new_sync_read+0x6e0/0x6e0
[   48.463177][ T3600]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   48.469400][ T3600]  ? security_file_permission+0xab/0xd0
[   48.474932][ T3600]  vfs_write+0x7cd/0xae0
[   48.479162][ T3600]  ksys_write+0x12d/0x250
[   48.483474][ T3600]  ? __ia32_sys_read+0xb0/0xb0
[   48.488220][ T3600]  ? syscall_enter_from_user_mode+0x21/0x70
[   48.494106][ T3600]  do_syscall_64+0x35/0xb0
[   48.498503][ T3600]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   48.504403][ T3600] RIP: 0033:0x7f8926fd37e3
[   48.508798][ T3600] 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
[   48.528388][ T3600] RSP: 002b:00007ffdd390bd28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   48.536783][ T3600] RAX: ffffffffffffffda RBX: 00007ffdd390bd50 RCX: 00007f8926fd37e3
[   48.544737][ T3600] RDX: 0000000000000d00 RSI: 0000000000000000 RDI: 00000000000000c8
[   48.552698][ T3600] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
[   48.560651][ T3600] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   48.568600][ T3600] R13: 00007ffdd390bd40 R14: 00007ffdd390bd38 R15: 00007ffdd390bd34
[   48.576558][ T3600]  </TASK>