forked to background, child pid 4645
[ 34.140931][ T4646] 8021q: adding VLAN 0 to HW filter on device bond0
[ 34.170200][ T4646] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: [ 34.457337][ T4734] ssh-keygen (4734) used greatest stack depth: 22344 bytes left
OK
syzkaller
Warning: Permanently added '10.128.0.94' (ECDSA) to the list of known hosts.
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syzkaller login: [ 76.251410][ T26] cfg80211: failed to load regulatory.db
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[ 82.588624][ T6430] ==================================================================
[ 82.596744][ T6430] BUG: KASAN: use-after-free in io_wq_worker_running+0x114/0x130
[ 82.604532][ T6430] Read of size 4 at addr ffff888020e9f404 by task iou-wrk-6429/6430
[ 82.612536][ T6430]
[ 82.614877][ T6430] CPU: 1 PID: 6430 Comm: iou-wrk-6429 Not tainted 6.2.0-rc2-syzkaller-00256-ga689b938df39 #0
[ 82.625057][ T6430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 82.635137][ T6430] Call Trace:
[ 82.638431][ T6430]
[ 82.641379][ T6430] dump_stack_lvl+0xd1/0x138
[ 82.646005][ T6430] print_report+0x15e/0x45d
[ 82.650540][ T6430] ? __phys_addr+0xc8/0x140
[ 82.655040][ T6430] ? io_wq_worker_running+0x114/0x130
[ 82.660411][ T6430] kasan_report+0xbf/0x1f0
[ 82.664819][ T6430] ? io_wq_worker_running+0x114/0x130
[ 82.670197][ T6430] io_wq_worker_running+0x114/0x130
[ 82.675416][ T6430] schedule_preempt_disabled+0x13/0x20
[ 82.680870][ T6430] __mutex_lock+0xa48/0x1360
[ 82.685450][ T6430] ? io_poll_cancel+0x1ae/0x1e0
[ 82.690304][ T6430] ? mutex_lock_io_nested+0x11a0/0x11a0
[ 82.695856][ T6430] ? io_wq_hash_work+0x60/0x60
[ 82.700652][ T6430] ? __lock_acquire+0x166e/0x56d0
[ 82.705702][ T6430] io_poll_cancel+0x1ae/0x1e0
[ 82.710376][ T6430] io_try_cancel+0x176/0x230
[ 82.715031][ T6430] __io_async_cancel+0xa0/0x3f0
[ 82.719880][ T6430] io_async_cancel+0x27a/0x480
[ 82.724638][ T6430] ? io_async_cancel_prep+0x300/0x300
[ 82.730007][ T6430] ? find_held_lock+0x2d/0x110
[ 82.734776][ T6430] ? io_async_cancel_prep+0x300/0x300
[ 82.740478][ T6430] io_issue_sqe+0x156/0x1220
[ 82.745077][ T6430] ? do_raw_spin_lock+0x124/0x2b0
[ 82.750098][ T6430] io_wq_submit_work+0x29c/0xdc0
[ 82.755037][ T6430] io_worker_handle_work+0xc41/0x1c60
[ 82.760435][ T6430] io_wqe_worker+0xa5b/0xe40
[ 82.765026][ T6430] ? io_worker_handle_work+0x1c60/0x1c60
[ 82.770677][ T6430] ? ret_from_fork+0x8/0x30
[ 82.775209][ T6430] ? lock_downgrade+0x6e0/0x6e0
[ 82.780067][ T6430] ? do_raw_spin_lock+0x124/0x2b0
[ 82.785080][ T6430] ? rwlock_bug.part.0+0x90/0x90
[ 82.790014][ T6430] ? _raw_spin_unlock_irq+0x23/0x50
[ 82.795207][ T6430] ? io_worker_handle_work+0x1c60/0x1c60
[ 82.800840][ T6430] ret_from_fork+0x1f/0x30
[ 82.805255][ T6430]
[ 82.808262][ T6430]
[ 82.810578][ T6430] Allocated by task 6429:
[ 82.814901][ T6430] kasan_save_stack+0x22/0x40
[ 82.819566][ T6430] kasan_set_track+0x25/0x30
[ 82.824141][ T6430] __kasan_kmalloc+0xa5/0xb0
[ 82.828716][ T6430] create_io_worker+0x10c/0x630
[ 82.833559][ T6430] io_wqe_enqueue+0x6c3/0xbc0
[ 82.838228][ T6430] io_queue_iowq+0x282/0x5c0
[ 82.842814][ T6430] io_queue_sqe_fallback+0xf3/0x190
[ 82.848011][ T6430] io_submit_sqes+0x11db/0x1e60
[ 82.852861][ T6430] __do_sys_io_uring_enter+0xc1d/0x2540
[ 82.858411][ T6430] do_syscall_64+0x39/0xb0
[ 82.862832][ T6430] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 82.868718][ T6430]
[ 82.871025][ T6430] Freed by task 6430:
[ 82.874999][ T6430] kasan_save_stack+0x22/0x40
[ 82.879709][ T6430] kasan_set_track+0x25/0x30
[ 82.884308][ T6430] kasan_save_free_info+0x2e/0x40
[ 82.889322][ T6430] ____kasan_slab_free+0x160/0x1c0
[ 82.894421][ T6430] slab_free_freelist_hook+0x8b/0x1c0
[ 82.899787][ T6430] __kmem_cache_free+0xaf/0x3b0
[ 82.904630][ T6430] io_queue_worker_create+0x567/0x660
[ 82.909995][ T6430] io_wqe_dec_running+0x1e4/0x240
[ 82.915018][ T6430] io_wq_worker_sleeping+0xa6/0xc0
[ 82.920137][ T6430] schedule+0x16e/0x1b0
[ 82.924284][ T6430] schedule_preempt_disabled+0x13/0x20
[ 82.929736][ T6430] __mutex_lock+0xa48/0x1360
[ 82.934348][ T6430] io_poll_cancel+0x1ae/0x1e0
[ 82.939014][ T6430] io_try_cancel+0x176/0x230
[ 82.943590][ T6430] __io_async_cancel+0xa0/0x3f0
[ 82.948434][ T6430] io_async_cancel+0x27a/0x480
[ 82.953187][ T6430] io_issue_sqe+0x156/0x1220
[ 82.957778][ T6430] io_wq_submit_work+0x29c/0xdc0
[ 82.962744][ T6430] io_worker_handle_work+0xc41/0x1c60
[ 82.968124][ T6430] io_wqe_worker+0xa5b/0xe40
[ 82.972717][ T6430] ret_from_fork+0x1f/0x30
[ 82.977160][ T6430]
[ 82.979494][ T6430] Last potentially related work creation:
[ 82.985193][ T6430] kasan_save_stack+0x22/0x40
[ 82.989869][ T6430] __kasan_record_aux_stack+0xbc/0xd0
[ 82.995237][ T6430] task_work_add+0x7f/0x2c0
[ 82.999737][ T6430] io_queue_worker_create+0x41d/0x660
[ 83.005107][ T6430] io_wqe_dec_running+0x1e4/0x240
[ 83.010121][ T6430] io_wq_worker_sleeping+0xa6/0xc0
[ 83.015224][ T6430] schedule+0x16e/0x1b0
[ 83.019373][ T6430] schedule_preempt_disabled+0x13/0x20
[ 83.024824][ T6430] __mutex_lock+0xa48/0x1360
[ 83.029406][ T6430] io_poll_cancel+0x1ae/0x1e0
[ 83.034090][ T6430] io_try_cancel+0x176/0x230
[ 83.038683][ T6430] __io_async_cancel+0xa0/0x3f0
[ 83.043526][ T6430] io_async_cancel+0x27a/0x480
[ 83.048278][ T6430] io_issue_sqe+0x156/0x1220
[ 83.052867][ T6430] io_wq_submit_work+0x29c/0xdc0
[ 83.057798][ T6430] io_worker_handle_work+0xc41/0x1c60
[ 83.063163][ T6430] io_wqe_worker+0xa5b/0xe40
[ 83.067746][ T6430] ret_from_fork+0x1f/0x30
[ 83.072154][ T6430]
[ 83.074462][ T6430] The buggy address belongs to the object at ffff888020e9f400
[ 83.074462][ T6430] which belongs to the cache kmalloc-512 of size 512
[ 83.088522][ T6430] The buggy address is located 4 bytes inside of
[ 83.088522][ T6430] 512-byte region [ffff888020e9f400, ffff888020e9f600)
[ 83.101695][ T6430]
[ 83.104003][ T6430] The buggy address belongs to the physical page:
[ 83.110399][ T6430] page:ffffea000083a700 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x20e9c
[ 83.120566][ T6430] head:ffffea000083a700 order:2 compound_mapcount:0 subpages_mapcount:0 compound_pincount:0
[ 83.130636][ T6430] ksm flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
[ 83.138951][ T6430] raw: 00fff00000010200 ffff888012441c80 ffffea000078b400 dead000000000003
[ 83.147524][ T6430] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
[ 83.156087][ T6430] page dumped because: kasan: bad access detected
[ 83.162479][ T6430] page_owner tracks the page as allocated
[ 83.168174][ T6430] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd2000(__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 9022994950, free_ts 0
[ 83.186217][ T6430] get_page_from_freelist+0x119c/0x2ce0
[ 83.191757][ T6430] __alloc_pages+0x1cb/0x5b0
[ 83.196337][ T6430] alloc_page_interleave+0x1e/0x200
[ 83.201523][ T6430] alloc_pages+0x233/0x270
[ 83.205927][ T6430] allocate_slab+0x25f/0x350
[ 83.210511][ T6430] ___slab_alloc+0xa91/0x1400
[ 83.215172][ T6430] __slab_alloc.constprop.0+0x56/0xa0
[ 83.220529][ T6430] __kmem_cache_alloc_node+0x1a4/0x430
[ 83.225975][ T6430] kmalloc_trace+0x26/0x60
[ 83.230382][ T6430] usb_cache_string+0x62/0x150
[ 83.235141][ T6430] usb_new_device+0x167/0x7b0
[ 83.239819][ T6430] register_root_hub+0x421/0x573
[ 83.244754][ T6430] usb_add_hcd.cold+0x100c/0x13a1
[ 83.249772][ T6430] dummy_hcd_probe+0x1a3/0x314
[ 83.254532][ T6430] platform_probe+0x100/0x1f0
[ 83.259209][ T6430] really_probe+0x249/0xb90
[ 83.263713][ T6430] page_owner free stack trace missing
[ 83.269064][ T6430]
[ 83.271370][ T6430] Memory state around the buggy address:
[ 83.276992][ T6430] ffff888020e9f300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 83.285037][ T6430] ffff888020e9f380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 83.293081][ T6430] >ffff888020e9f400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 83.301134][ T6430] ^
[ 83.305183][ T6430] ffff888020e9f480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 83.313227][ T6430] ffff888020e9f500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 83.321269][ T6430] ==================================================================
[ 83.460801][ T6430] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 83.468041][ T6430] CPU: 1 PID: 6430 Comm: iou-wrk-6429 Not tainted 6.2.0-rc2-syzkaller-00256-ga689b938df39 #0
[ 83.478214][ T6430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 83.488284][ T6430] Call Trace:
[ 83.491552][ T6430]
[ 83.494473][ T6430] dump_stack_lvl+0xd1/0x138
[ 83.499084][ T6430] panic+0x2cc/0x626
[ 83.503007][ T6430] ? panic_print_sys_info.part.0+0x110/0x110
[ 83.508992][ T6430] ? preempt_schedule_thunk+0x1a/0x20
[ 83.514366][ T6430] ? preempt_schedule_common+0x59/0xc0
[ 83.519827][ T6430] check_panic_on_warn.cold+0x19/0x35
[ 83.525296][ T6430] end_report.part.0+0x36/0x73
[ 83.530065][ T6430] ? io_wq_worker_running+0x114/0x130
[ 83.535450][ T6430] kasan_report.cold+0xa/0xf
[ 83.540044][ T6430] ? io_wq_worker_running+0x114/0x130
[ 83.545423][ T6430] io_wq_worker_running+0x114/0x130
[ 83.550628][ T6430] schedule_preempt_disabled+0x13/0x20
[ 83.556096][ T6430] __mutex_lock+0xa48/0x1360
[ 83.560697][ T6430] ? io_poll_cancel+0x1ae/0x1e0
[ 83.565543][ T6430] ? mutex_lock_io_nested+0x11a0/0x11a0
[ 83.571166][ T6430] ? io_wq_hash_work+0x60/0x60
[ 83.575953][ T6430] ? __lock_acquire+0x166e/0x56d0
[ 83.581663][ T6430] io_poll_cancel+0x1ae/0x1e0
[ 83.586360][ T6430] io_try_cancel+0x176/0x230
[ 83.590954][ T6430] __io_async_cancel+0xa0/0x3f0
[ 83.595799][ T6430] io_async_cancel+0x27a/0x480
[ 83.600561][ T6430] ? io_async_cancel_prep+0x300/0x300
[ 83.605984][ T6430] ? find_held_lock+0x2d/0x110
[ 83.610752][ T6430] ? io_async_cancel_prep+0x300/0x300
[ 83.616116][ T6430] io_issue_sqe+0x156/0x1220
[ 83.620701][ T6430] ? do_raw_spin_lock+0x124/0x2b0
[ 83.625721][ T6430] io_wq_submit_work+0x29c/0xdc0
[ 83.630657][ T6430] io_worker_handle_work+0xc41/0x1c60
[ 83.636027][ T6430] io_wqe_worker+0xa5b/0xe40
[ 83.640613][ T6430] ? io_worker_handle_work+0x1c60/0x1c60
[ 83.646240][ T6430] ? ret_from_fork+0x8/0x30
[ 83.650762][ T6430] ? lock_downgrade+0x6e0/0x6e0
[ 83.655621][ T6430] ? do_raw_spin_lock+0x124/0x2b0
[ 83.660637][ T6430] ? rwlock_bug.part.0+0x90/0x90
[ 83.665565][ T6430] ? _raw_spin_unlock_irq+0x23/0x50
[ 83.670761][ T6430] ? io_worker_handle_work+0x1c60/0x1c60
[ 83.676390][ T6430] ret_from_fork+0x1f/0x30
[ 83.680808][ T6430]
[ 83.683984][ T6430] Kernel Offset: disabled
[ 83.688336][ T6430] Rebooting in 86400 seconds..