Warning: Permanently added '10.128.0.116' (ED25519) to the list of known hosts.
executing program
[   82.392206][   T51] 
[   82.395826][   T51] ============================================
[   82.402704][   T51] WARNING: possible recursive locking detected
[   82.411524][   T51] 6.9.0-rc2-next-20240404-syzkaller #0 Not tainted
[   82.420782][   T51] --------------------------------------------
[   82.428161][   T51] kworker/u8:3/51 is trying to acquire lock:
[   82.435243][   T51] ffffffff8f6dc178 (unix_gc_lock){+.+.}-{2:2}, at: unix_del_edges+0x30/0x590
[   82.447741][   T51] 
[   82.447741][   T51] but task is already holding lock:
[   82.457042][   T51] ffffffff8f6dc178 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0xc5/0x1830
[   82.467762][   T51] 
[   82.467762][   T51] other info that might help us debug this:
[   82.476408][   T51]  Possible unsafe locking scenario:
[   82.476408][   T51] 
[   82.487279][   T51]        CPU0
[   82.491941][   T51]        ----
[   82.496008][   T51]   lock(unix_gc_lock);
[   82.502062][   T51]   lock(unix_gc_lock);
[   82.508165][   T51] 
[   82.508165][   T51]  *** DEADLOCK ***
[   82.508165][   T51] 
[   82.520323][   T51]  May be due to missing lock nesting notation
[   82.520323][   T51] 
[   82.530703][   T51] 4 locks held by kworker/u8:3/51:
[   82.536238][   T51]  #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830
[   82.550245][   T51]  #1: ffffc90000bb7d00 (unix_gc_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830
[   82.560842][   T51]  #2: ffffffff8f6dc178 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0xc5/0x1830
[   82.572862][   T51]  #3: ffff88802bd76118 (rlock-AF_UNIX){+.+.}-{2:2}, at: unix_collect_skb+0xb8/0x700
[   82.583015][   T51] 
[   82.583015][   T51] stack backtrace:
[   82.591116][   T51] CPU: 0 PID: 51 Comm: kworker/u8:3 Not tainted 6.9.0-rc2-next-20240404-syzkaller #0
[   82.601227][   T51] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[   82.612219][   T51] Workqueue: events_unbound __unix_gc
[   82.617773][   T51] Call Trace:
[   82.621362][   T51]  <TASK>
[   82.624547][   T51]  dump_stack_lvl+0x241/0x360
[   82.629572][   T51]  ? __pfx_dump_stack_lvl+0x10/0x10
[   82.636448][   T51]  ? print_deadlock_bug+0x479/0x620
[   82.641932][   T51]  ? _find_first_zero_bit+0xd4/0x100
[   82.648324][   T51]  validate_chain+0x15c1/0x58e0
[   82.654553][   T51]  ? stack_trace_save+0x118/0x1d0
[   82.660149][   T51]  ? __pfx_stack_trace_save+0x10/0x10
[   82.665662][   T51]  ? check_noncircular+0x259/0x4a0
[   82.672654][   T51]  ? __pfx_validate_chain+0x10/0x10
[   82.678939][   T51]  ? __pfx_check_noncircular+0x10/0x10
[   82.685486][   T51]  ? lockdep_unlock+0x16a/0x300
[   82.691234][   T51]  ? __pfx_lockdep_unlock+0x10/0x10
[   82.696598][   T51]  ? add_lock_to_list+0x1de/0x2e0
[   82.701930][   T51]  ? validate_chain+0x15a2/0x58e0
[   82.710788][   T51]  ? mark_lock+0x9a/0x350
[   82.715356][   T51]  __lock_acquire+0x1346/0x1fd0
[   82.720798][   T51]  lock_acquire+0x1ed/0x550
[   82.725525][   T51]  ? unix_del_edges+0x30/0x590
[   82.730630][   T51]  ? __pfx_lock_acquire+0x10/0x10
[   82.735990][   T51]  ? mark_lock+0x9a/0x350
[   82.740486][   T51]  _raw_spin_lock+0x2e/0x40
[   82.746674][   T51]  ? unix_del_edges+0x30/0x590
[   82.751865][   T51]  unix_del_edges+0x30/0x590
[   82.756476][   T51]  unix_destroy_fpl+0x59/0x210
[   82.761267][   T51]  unix_destruct_scm+0x13e/0x210
[   82.766295][   T51]  ? __pfx_lock_acquire+0x10/0x10
[   82.772001][   T51]  ? __pfx_unix_destruct_scm+0x10/0x10
[   82.777703][   T51]  skb_release_head_state+0x100/0x250
[   82.783163][   T51]  ? unix_collect_skb+0x5e4/0x700
[   82.788717][   T51]  kfree_skb_reason+0x16d/0x3b0
[   82.793949][   T51]  unix_collect_skb+0x5e4/0x700
[   82.799564][   T51]  __unix_gc+0x108c/0x1830
[   82.804374][   T51]  ? __pfx___unix_gc+0x10/0x10
[   82.809382][   T51]  ? __pfx_lock_acquire+0x10/0x10
[   82.814783][   T51]  ? lockdep_hardirqs_on_prepare+0x43d/0x780
[   82.821074][   T51]  ? process_scheduled_works+0x945/0x1830
[   82.827295][   T51]  process_scheduled_works+0xa2c/0x1830
[   82.834244][   T51]  ? __pfx_process_scheduled_works+0x10/0x10
[   82.840931][   T51]  ? assign_work+0x364/0x3d0
[   82.845868][   T51]  worker_thread+0x86d/0xd70
[   82.851571][   T51]  ? __kthread_parkme+0x169/0x1d0
[   82.857529][   T51]  ? __pfx_worker_thread+0x10/0x10
[   82.862893][   T51]  kthread+0x2f0/0x390
[   82.867305][   T51]  ? __pfx_worker_thread+0x10/0x10
[   82.873464][   T51]  ? __pfx_kthread+0x10/0x10
[   82.878657][   T51]  ret_from_fork+0x4b/0x80
[   82.884164][   T51]  ? __pfx_kthread+0x10/0x10
[   82.889198][   T51]  ret_from_fork_asm+0x1a/0x30
[   82.894652][   T51]  </TASK>