DUID 00:04:2f:bc:f2:2f:e4:1d:55:f7:99:3b:0f:15:66:5c:e9:07
forked to background, child pid 3187
[   25.740162][ T3188] 8021q: adding VLAN 0 to HW filter on device bond0
[   25.750508][ T3188] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
syzkaller login: [   76.246845][  T141] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.1.5' (ECDSA) to the list of known hosts.
[  174.156069][ T3619] cgroup: Unknown subsys name 'net'
[  174.290692][ T3619] cgroup: Unknown subsys name 'rlimit'
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[  194.366590][   T14] ==================================================================
[  194.374686][   T14] BUG: KASAN: use-after-free in kill_fasync+0x3a/0x430
[  194.381557][   T14] Read of size 8 at addr ffff888021947568 by task kworker/0:1/14
[  194.389256][   T14] 
[  194.391588][   T14] CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 5.19.0-rc5-syzkaller-00187-ge8a4e1c1bb69 #0
[  194.401569][   T14] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
[  194.411605][   T14] Workqueue: events key_garbage_collector
[  194.417314][   T14] Call Trace:
[  194.420580][   T14]  <TASK>
[  194.423494][   T14]  dump_stack_lvl+0x1e3/0x2cb
[  194.428174][   T14]  ? bfq_pos_tree_add_move+0x436/0x436
[  194.433623][   T14]  ? _printk+0xcf/0x10f
[  194.437764][   T14]  ? __wake_up_klogd+0xd6/0x100
[  194.442606][   T14]  ? __wake_up_klogd+0xcd/0x100
[  194.447447][   T14]  ? panic+0x76e/0x76e
[  194.451519][   T14]  ? _printk+0xcf/0x10f
[  194.455664][   T14]  print_address_description+0x65/0x4b0
[  194.461213][   T14]  print_report+0xf4/0x210
[  194.465619][   T14]  ? preempt_schedule_thunk+0x16/0x18
[  194.470978][   T14]  ? kill_fasync+0x3a/0x430
[  194.475475][   T14]  kasan_report+0xfb/0x130
[  194.479881][   T14]  ? kill_fasync+0x3a/0x430
[  194.484389][   T14]  kill_fasync+0x3a/0x430
[  194.488709][   T14]  remove_watch_from_object+0x4d0/0xa70
[  194.494249][   T14]  ? add_watch_to_object+0x660/0x660
[  194.499521][   T14]  ? key_gc_unused_keys+0x4ca/0x5b0
[  194.504710][   T14]  ? kfree+0xc6/0x210
[  194.508684][   T14]  key_gc_unused_keys+0x1c3/0x5b0
[  194.513701][   T14]  key_garbage_collector+0x8cc/0xa10
[  194.518993][   T14]  process_one_work+0x81c/0xd10
[  194.523856][   T14]  ? worker_detach_from_pool+0x260/0x260
[  194.529478][   T14]  ? _raw_spin_lock_irqsave+0x120/0x120
[  194.535014][   T14]  ? kthread_data+0x4d/0xc0
[  194.539512][   T14]  ? wq_worker_running+0x95/0x190
[  194.544523][   T14]  worker_thread+0xb14/0x1330
[  194.549537][   T14]  ? _raw_spin_unlock_irqrestore+0xd9/0x130
[  194.555421][   T14]  kthread+0x266/0x300
[  194.559479][   T14]  ? rcu_lock_release+0x20/0x20
[  194.564322][   T14]  ? kthread_blkcg+0xd0/0xd0
[  194.568898][   T14]  ret_from_fork+0x1f/0x30
[  194.573310][   T14]  </TASK>
[  194.576331][   T14] 
[  194.578643][   T14] Allocated by task 4039:
[  194.582954][   T14]  ____kasan_kmalloc+0xdc/0x110
[  194.587796][   T14]  kmem_cache_alloc_trace+0x94/0x310
[  194.593066][   T14]  alloc_pipe_info+0xe2/0x4a0
[  194.597735][   T14]  create_pipe_files+0x84/0x6e0
[  194.602568][   T14]  __do_pipe_flags+0x46/0x200
[  194.607241][   T14]  do_pipe2+0xd0/0x300
[  194.611293][   T14]  __x64_sys_pipe2+0x56/0x60
[  194.615868][   T14]  do_syscall_64+0x2b/0x70
[  194.620271][   T14]  entry_SYSCALL_64_after_hwframe+0x46/0xb0
[  194.626149][   T14] 
[  194.628461][   T14] Freed by task 4039:
[  194.632425][   T14]  kasan_set_track+0x4c/0x70
[  194.637000][   T14]  kasan_set_free_info+0x1f/0x40
[  194.641949][   T14]  ____kasan_slab_free+0xd8/0x110
[  194.646962][   T14]  slab_free_freelist_hook+0x12e/0x1a0
[  194.652427][   T14]  kfree+0xc6/0x210
[  194.656226][   T14]  pipe_release+0x232/0x310
[  194.660717][   T14]  __fput+0x3b9/0x820
[  194.664697][   T14]  task_work_run+0x146/0x1c0
[  194.669289][   T14]  exit_to_user_mode_loop+0x134/0x160
[  194.674683][   T14]  exit_to_user_mode_prepare+0xad/0x110
[  194.680221][   T14]  syscall_exit_to_user_mode+0x2e/0x60
[  194.685690][   T14]  entry_SYSCALL_64_after_hwframe+0x46/0xb0
[  194.691586][   T14] 
[  194.693903][   T14] The buggy address belongs to the object at ffff888021947400
[  194.693903][   T14]  which belongs to the cache kmalloc-cg-512 of size 512
[  194.708219][   T14] The buggy address is located 360 bytes inside of
[  194.708219][   T14]  512-byte region [ffff888021947400, ffff888021947600)
[  194.721517][   T14] 
[  194.723837][   T14] The buggy address belongs to the physical page:
[  194.730238][   T14] page:ffffea0000865100 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x21944
[  194.740395][   T14] head:ffffea0000865100 order:2 compound_mapcount:0 compound_pincount:0
[  194.748707][   T14] memcg:ffff88801cf27601
[  194.752930][   T14] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
[  194.760897][   T14] raw: 00fff00000010200 ffffea000092fb00 dead000000000002 ffff888011c42dc0
[  194.769486][   T14] raw: 0000000000000000 0000000080100010 00000001ffffffff ffff88801cf27601
[  194.778051][   T14] page dumped because: kasan: bad access detected
[  194.784446][   T14] page_owner tracks the page as allocated
[  194.790169][   T14] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 2980, tgid 2980 (udevd), ts 14961157220, free_ts 14944740310
[  194.810903][   T14]  get_page_from_freelist+0x72b/0x7a0
[  194.816270][   T14]  __alloc_pages+0x259/0x560
[  194.820848][   T14]  alloc_slab_page+0x70/0xf0
[  194.825429][   T14]  allocate_slab+0x5e/0x520
[  194.829918][   T14]  ___slab_alloc+0x42e/0xce0
[  194.834493][   T14]  __kmalloc_node_track_caller+0x2bb/0x3f0
[  194.840306][   T14]  __alloc_skb+0x11d/0x660
[  194.844723][   T14]  alloc_skb_with_frags+0xac/0x800
[  194.849828][   T14]  sock_alloc_send_pskb+0x930/0xa70
[  194.855012][   T14]  unix_dgram_sendmsg+0x5ca/0x1fc0
[  194.860110][   T14]  sock_write_iter+0x3e7/0x560
[  194.864861][   T14]  vfs_write+0xa22/0xd40
[  194.869090][   T14]  ksys_write+0x19b/0x2c0
[  194.873405][   T14]  do_syscall_64+0x2b/0x70
[  194.877806][   T14]  entry_SYSCALL_64_after_hwframe+0x46/0xb0
[  194.883692][   T14] page last free stack trace:
[  194.888347][   T14]  free_pcp_prepare+0x812/0x900
[  194.893183][   T14]  free_unref_page+0x7d/0x390
[  194.897845][   T14]  __unfreeze_partials+0x1ab/0x200
[  194.902939][   T14]  put_cpu_partial+0x116/0x180
[  194.907699][   T14]  ___cache_free+0x118/0x1a0
[  194.912283][   T14]  qlist_free_all+0x2b/0x70
[  194.916775][   T14]  kasan_quarantine_reduce+0x169/0x180
[  194.922228][   T14]  __kasan_slab_alloc+0x2f/0xe0
[  194.927076][   T14]  kmem_cache_alloc_trace+0x1db/0x310
[  194.932443][   T14]  smk_fetch+0x91/0x140
[  194.936634][   T14]  smack_d_instantiate+0x5c4/0xa10
[  194.941737][   T14]  security_d_instantiate+0xa5/0x100
[  194.947010][   T14]  d_splice_alias+0x6e/0x3b0
[  194.951590][   T14]  __lookup_slow+0x27f/0x3d0
[  194.956166][   T14]  lookup_slow+0x53/0x70
[  194.960395][   T14]  walk_component+0x425/0x5a0
[  194.965235][   T14] 
[  194.967549][   T14] Memory state around the buggy address:
[  194.973178][   T14]  ffff888021947400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  194.981226][   T14]  ffff888021947480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  194.989273][   T14] >ffff888021947500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  194.997317][   T14]                                                           ^
[  195.004751][   T14]  ffff888021947580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  195.012796][   T14]  ffff888021947600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  195.020837][   T14] ==================================================================
[  195.029952][   T14] Kernel panic - not syncing: panic_on_warn set ...
[  195.036555][   T14] CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 5.19.0-rc5-syzkaller-00187-ge8a4e1c1bb69 #0
[  195.046531][   T14] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
[  195.056571][   T14] Workqueue: events key_garbage_collector
[  195.062281][   T14] Call Trace:
[  195.065545][   T14]  <TASK>
[  195.068460][   T14]  dump_stack_lvl+0x1e3/0x2cb
[  195.073125][   T14]  ? bfq_pos_tree_add_move+0x436/0x436
[  195.078568][   T14]  ? panic+0x76e/0x76e
[  195.082620][   T14]  ? preempt_schedule_common+0xb7/0xe0
[  195.088065][   T14]  ? preempt_schedule+0xd9/0xe0
[  195.092902][   T14]  ? vscnprintf+0x59/0x80
[  195.097239][   T14]  panic+0x312/0x76e
[  195.101121][   T14]  ? fb_is_primary_device+0xcc/0xcc
[  195.106301][   T14]  ? _raw_spin_unlock_irqrestore+0x128/0x130
[  195.112277][   T14]  ? kill_fasync+0x3a/0x430
[  195.116778][   T14]  end_report+0x91/0xa0
[  195.120932][   T14]  kasan_report+0x108/0x130
[  195.125419][   T14]  ? kill_fasync+0x3a/0x430
[  195.129906][   T14]  kill_fasync+0x3a/0x430
[  195.134218][   T14]  remove_watch_from_object+0x4d0/0xa70
[  195.139748][   T14]  ? add_watch_to_object+0x660/0x660
[  195.145013][   T14]  ? key_gc_unused_keys+0x4ca/0x5b0
[  195.150196][   T14]  ? kfree+0xc6/0x210
[  195.154161][   T14]  key_gc_unused_keys+0x1c3/0x5b0
[  195.159186][   T14]  key_garbage_collector+0x8cc/0xa10
[  195.164462][   T14]  process_one_work+0x81c/0xd10
[  195.169313][   T14]  ? worker_detach_from_pool+0x260/0x260
[  195.175018][   T14]  ? _raw_spin_lock_irqsave+0x120/0x120
[  195.180566][   T14]  ? kthread_data+0x4d/0xc0
[  195.185070][   T14]  ? wq_worker_running+0x95/0x190
[  195.190078][   T14]  worker_thread+0xb14/0x1330
[  195.194739][   T14]  ? _raw_spin_unlock_irqrestore+0xd9/0x130
[  195.200616][   T14]  kthread+0x266/0x300
[  195.204674][   T14]  ? rcu_lock_release+0x20/0x20
[  195.209510][   T14]  ? kthread_blkcg+0xd0/0xd0
[  195.214086][   T14]  ret_from_fork+0x1f/0x30
[  195.218489][   T14]  </TASK>
[  195.221567][   T14] Kernel Offset: disabled
[  195.225886][   T14] Rebooting in 86400 seconds..