DUID 00:04:15:32:48:1d:3b:73:54:4f:46:a6:7d:b2:d0:ec:1f:b1
forked to background, child pid 3175
[   26.467199][ T3176] 8021q: adding VLAN 0 to HW filter on device bond0
[   26.477217][ T3176] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.10.7' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   48.546334][ T3591] 
[   48.548712][ T3591] ============================================
[   48.554835][ T3591] WARNING: possible recursive locking detected
[   48.560962][ T3591] 5.17.0-rc8-syzkaller-00003-g56e337f2cf13 #0 Not tainted
[   48.568063][ T3591] --------------------------------------------
[   48.574191][ T3591] syz-executor392/3591 is trying to acquire lock:
[   48.580580][ T3591] ffff88807845a468 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x132/0x1c00
[   48.589364][ T3591] 
[   48.589364][ T3591] but task is already holding lock:
[   48.596704][ T3591] ffff88807845a068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_wait_readable+0x39b/0x420
[   48.606083][ T3591] 
[   48.606083][ T3591] other info that might help us debug this:
[   48.614126][ T3591]  Possible unsafe locking scenario:
[   48.614126][ T3591] 
[   48.621551][ T3591]        CPU0
[   48.624817][ T3591]        ----
[   48.628091][ T3591]   lock(&pipe->mutex/1);
[   48.632423][ T3591]   lock(&pipe->mutex/1);
[   48.636746][ T3591] 
[   48.636746][ T3591]  *** DEADLOCK ***
[   48.636746][ T3591] 
[   48.644875][ T3591]  May be due to missing lock nesting notation
[   48.644875][ T3591] 
[   48.653169][ T3591] 1 lock held by syz-executor392/3591:
[   48.658610][ T3591]  #0: ffff88807845a068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_wait_readable+0x39b/0x420
[   48.668447][ T3591] 
[   48.668447][ T3591] stack backtrace:
[   48.674316][ T3591] CPU: 0 PID: 3591 Comm: syz-executor392 Not tainted 5.17.0-rc8-syzkaller-00003-g56e337f2cf13 #0
[   48.684790][ T3591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.694828][ T3591] Call Trace:
[   48.698092][ T3591]  <TASK>
[   48.701005][ T3591]  dump_stack_lvl+0xcd/0x134
[   48.705593][ T3591]  __lock_acquire.cold+0x213/0x3a9
[   48.710690][ T3591]  ? lockdep_hardirqs_on_prepare+0x400/0x400
[   48.716658][ T3591]  lock_acquire+0x1ab/0x510
[   48.721142][ T3591]  ? pipe_write+0x132/0x1c00
[   48.725711][ T3591]  ? lock_release+0x720/0x720
[   48.730387][ T3591]  __mutex_lock+0x12f/0x12f0
[   48.734959][ T3591]  ? pipe_write+0x132/0x1c00
[   48.739540][ T3591]  ? lockdep_hardirqs_on_prepare+0x400/0x400
[   48.745515][ T3591]  ? pipe_write+0x132/0x1c00
[   48.750084][ T3591]  ? mutex_lock_io_nested+0x1150/0x1150
[   48.755622][ T3591]  ? find_held_lock+0x2d/0x110
[   48.760369][ T3591]  ? aa_file_perm+0x56b/0x1230
[   48.765119][ T3591]  ? lock_downgrade+0x6e0/0x6e0
[   48.770137][ T3591]  pipe_write+0x132/0x1c00
[   48.774553][ T3591]  ? aa_file_perm+0x595/0x1230
[   48.779301][ T3591]  ? generic_pipe_buf_release+0x240/0x240
[   48.785006][ T3591]  ? aa_path_link+0x2f0/0x2f0
[   48.789676][ T3591]  ? mutex_lock_io_nested+0x1150/0x1150
[   48.795204][ T3591]  ? pipe_wait_readable+0x336/0x420
[   48.800382][ T3591]  ? lock_downgrade+0x6e0/0x6e0
[   48.805215][ T3591]  do_iter_readv_writev+0x47a/0x750
[   48.810398][ T3591]  ? new_sync_write+0x660/0x660
[   48.815230][ T3591]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   48.821452][ T3591]  ? security_file_permission+0xab/0xd0
[   48.826978][ T3591]  do_iter_write+0x188/0x710
[   48.831550][ T3591]  vfs_iter_write+0x70/0xa0
[   48.836032][ T3591]  iter_file_splice_write+0x723/0xc70
[   48.841389][ T3591]  ? generic_splice_sendpage+0x140/0x140
[   48.847002][ T3591]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   48.853224][ T3591]  ? security_file_permission+0xab/0xd0
[   48.858751][ T3591]  ? generic_splice_sendpage+0x140/0x140
[   48.864361][ T3591]  do_splice+0xb7e/0x1960
[   48.868674][ T3591]  ? find_held_lock+0x2d/0x110
[   48.873431][ T3591]  ? __fget_files+0x26a/0x470
[   48.878086][ T3591]  ? splice_file_to_pipe+0x120/0x120
[   48.883346][ T3591]  ? find_held_lock+0x2d/0x110
[   48.888088][ T3591]  __do_splice+0x134/0x250
[   48.892483][ T3591]  ? do_splice+0x1960/0x1960
[   48.897055][ T3591]  __x64_sys_splice+0x198/0x250
[   48.901885][ T3591]  do_syscall_64+0x35/0xb0
[   48.906298][ T3591]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   48.912172][ T3591] RIP: 0033:0x7f94a267cca9
[   48.916568][ T3591] 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
[   48.936150][ T3591] RSP: 002b:00007f94a262f308 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
[   48.944537][ T3591] RAX: ffffffffffffffda