DUID 00:04:66:e4:01:83:27:57:c7:2c:b4:77:89:67:fd:32:a2:9b
forked to background, child pid 3175
[   26.755359][ T3176] 8021q: adding VLAN 0 to HW filter on device bond0
[   26.766580][ T3176] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.1.94' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   48.323156][ T3598] 
[   48.325520][ T3598] ============================================
[   48.331646][ T3598] WARNING: possible recursive locking detected
[   48.337773][ T3598] 5.17.0-rc8-syzkaller-00003-g56e337f2cf13 #0 Not tainted
[   48.344870][ T3598] --------------------------------------------
[   48.351010][ T3598] syz-executor316/3598 is trying to acquire lock:
[   48.357606][ T3598] ffff888078031068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x132/0x1c00
[   48.366394][ T3598] 
[   48.366394][ T3598] but task is already holding lock:
[   48.373740][ T3598] ffff888078030c68 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_wait_readable+0x39b/0x420
[   48.383119][ T3598] 
[   48.383119][ T3598] other info that might help us debug this:
[   48.391177][ T3598]  Possible unsafe locking scenario:
[   48.391177][ T3598] 
[   48.398607][ T3598]        CPU0
[   48.401868][ T3598]        ----
[   48.405135][ T3598]   lock(&pipe->mutex/1);
[   48.409446][ T3598]   lock(&pipe->mutex/1);
[   48.413755][ T3598] 
[   48.413755][ T3598]  *** DEADLOCK ***
[   48.413755][ T3598] 
[   48.421873][ T3598]  May be due to missing lock nesting notation
[   48.421873][ T3598] 
[   48.430165][ T3598] 1 lock held by syz-executor316/3598:
[   48.435603][ T3598]  #0: ffff888078030c68 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_wait_readable+0x39b/0x420
[   48.445416][ T3598] 
[   48.445416][ T3598] stack backtrace:
[   48.451301][ T3598] CPU: 1 PID: 3598 Comm: syz-executor316 Not tainted 5.17.0-rc8-syzkaller-00003-g56e337f2cf13 #0
[   48.461771][ T3598] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.471805][ T3598] Call Trace:
[   48.475065][ T3598]  <TASK>
[   48.477977][ T3598]  dump_stack_lvl+0xcd/0x134
[   48.482565][ T3598]  __lock_acquire.cold+0x213/0x3a9
[   48.487660][ T3598]  ? lockdep_hardirqs_on_prepare+0x400/0x400
[   48.493661][ T3598]  lock_acquire+0x1ab/0x510
[   48.498142][ T3598]  ? pipe_write+0x132/0x1c00
[   48.502717][ T3598]  ? lock_release+0x720/0x720
[   48.507390][ T3598]  __mutex_lock+0x12f/0x12f0
[   48.511961][ T3598]  ? pipe_write+0x132/0x1c00
[   48.516529][ T3598]  ? lockdep_hardirqs_on_prepare+0x400/0x400
[   48.522523][ T3598]  ? pipe_write+0x132/0x1c00
[   48.527098][ T3598]  ? mutex_lock_io_nested+0x1150/0x1150
[   48.532626][ T3598]  ? find_held_lock+0x2d/0x110
[   48.537382][ T3598]  ? aa_file_perm+0x56b/0x1230
[   48.542124][ T3598]  ? lock_downgrade+0x6e0/0x6e0
[   48.546955][ T3598]  pipe_write+0x132/0x1c00
[   48.551364][ T3598]  ? aa_file_perm+0x595/0x1230
[   48.556110][ T3598]  ? generic_pipe_buf_release+0x240/0x240
[   48.561811][ T3598]  ? aa_path_link+0x2f0/0x2f0
[   48.566482][ T3598]  ? mutex_lock_io_nested+0x1150/0x1150
[   48.572013][ T3598]  ? pipe_wait_readable+0x336/0x420
[   48.577201][ T3598]  ? lock_downgrade+0x6e0/0x6e0
[   48.582033][ T3598]  do_iter_readv_writev+0x47a/0x750
[   48.587212][ T3598]  ? new_sync_write+0x660/0x660
[   48.592067][ T3598]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   48.598292][ T3598]  ? security_file_permission+0xab/0xd0
[   48.603819][ T3598]  do_iter_write+0x188/0x710
[   48.608401][ T3598]  vfs_iter_write+0x70/0xa0
[   48.612915][ T3598]  iter_file_splice_write+0x723/0xc70
[   48.618287][ T3598]  ? generic_splice_sendpage+0x140/0x140
[   48.623913][ T3598]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   48.630155][ T3598]  ? security_file_permission+0xab/0xd0
[   48.635683][ T3598]  ? generic_splice_sendpage+0x140/0x140
[   48.641299][ T3598]  do_splice+0xb7e/0x1960
[   48.645609][ T3598]  ? find_held_lock+0x2d/0x110
[   48.650369][ T3598]  ? __fget_files+0x26a/0x470
[   48.655025][ T3598]  ? splice_file_to_pipe+0x120/0x120
[   48.660294][ T3598]  ? find_held_lock+0x2d/0x110
[   48.665041][ T3598]  __do_splice+0x134/0x250
[   48.669439][ T3598]  ? do_splice+0x1960/0x1960
[   48.674010][ T3598]  __x64_sys_splice+0x198/0x250
[   48.678855][ T3598]  do_syscall_64+0x35/0xb0
[   48.683268][ T3598]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   48.689169][ T3598] RIP: 0033:0x7f452a8fdca9
[   48.693572][ T3598] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 14 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[   48.713174][ T3598] RSP: 002b:00007f452a8b0308 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
[   48.721581][ T3598] RAX: fffffffff