DUID 00:04:dc:6c:a8:75:19:b8:f7:30:df:f1:e8:1e:24:9d:66:1e
forked to background, child pid 4644
[ 34.668390][ T4645] 8021q: adding VLAN 0 to HW filter on device bond0
[ 34.678136][ T4645] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 76.323846][ T898] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.1.102' (ECDSA) to the list of known hosts.
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[ 573.729890][ T7347] ==================================================================
[ 573.737998][ T7347] BUG: KASAN: use-after-free in io_wq_worker_running+0x114/0x130
[ 573.745794][ T7347] Read of size 4 at addr ffff88807d07d004 by task iou-wrk-7345/7347
[ 573.753760][ T7347]
[ 573.756070][ T7347] CPU: 0 PID: 7347 Comm: iou-wrk-7345 Not tainted 6.2.0-rc3-syzkaller-00021-g7dd4b804e080 #0
[ 573.766208][ T7347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 573.776250][ T7347] Call Trace:
[ 573.779519][ T7347]
[ 573.782444][ T7347] dump_stack_lvl+0xd1/0x138
[ 573.787047][ T7347] print_report+0x15e/0x45d
[ 573.791585][ T7347] ? __phys_addr+0xc8/0x140
[ 573.796094][ T7347] ? io_wq_worker_running+0x114/0x130
[ 573.801466][ T7347] kasan_report+0xbf/0x1f0
[ 573.805933][ T7347] ? io_wq_worker_running+0x114/0x130
[ 573.811322][ T7347] io_wq_worker_running+0x114/0x130
[ 573.816516][ T7347] schedule_preempt_disabled+0x13/0x20
[ 573.821994][ T7347] __mutex_lock+0xa48/0x1360
[ 573.826612][ T7347] ? io_buffer_select+0x8e5/0xbe0
[ 573.831632][ T7347] ? mutex_lock_io_nested+0x11a0/0x11a0
[ 573.837177][ T7347] ? __xa_clear_mark+0x120/0x120
[ 573.842116][ T7347] io_buffer_select+0x8e5/0xbe0
[ 573.846985][ T7347] io_recv+0x851/0x1140
[ 573.851129][ T7347] ? io_recvmsg+0x1e00/0x1e00
[ 573.855796][ T7347] ? lockdep_hardirqs_on_prepare+0x410/0x410
[ 573.861781][ T7347] ? __lock_acquire+0x166e/0x56d0
[ 573.866802][ T7347] ? find_held_lock+0x2d/0x110
[ 573.871589][ T7347] ? io_recvmsg+0x1e00/0x1e00
[ 573.876255][ T7347] io_issue_sqe+0x156/0x1220
[ 573.880882][ T7347] ? do_raw_spin_lock+0x124/0x2b0
[ 573.885898][ T7347] io_wq_submit_work+0x29c/0xdc0
[ 573.890832][ T7347] io_worker_handle_work+0xc41/0x1c60
[ 573.896212][ T7347] io_wqe_worker+0xa5b/0xe40
[ 573.900799][ T7347] ? io_worker_handle_work+0x1c60/0x1c60
[ 573.906430][ T7347] ? ret_from_fork+0x8/0x30
[ 573.910927][ T7347] ? lock_downgrade+0x6e0/0x6e0
[ 573.915768][ T7347] ? do_raw_spin_lock+0x124/0x2b0
[ 573.920781][ T7347] ? rwlock_bug.part.0+0x90/0x90
[ 573.925711][ T7347] ? _raw_spin_unlock_irq+0x23/0x50
[ 573.930905][ T7347] ? io_worker_handle_work+0x1c60/0x1c60
[ 573.936538][ T7347] ret_from_fork+0x1f/0x30
[ 573.940956][ T7347]
[ 573.943961][ T7347]
[ 573.946270][ T7347] Allocated by task 7345:
[ 573.950575][ T7347] kasan_save_stack+0x22/0x40
[ 573.955240][ T7347] kasan_set_track+0x25/0x30
[ 573.959818][ T7347] __kasan_kmalloc+0xa5/0xb0
[ 573.964452][ T7347] create_io_worker+0x10c/0x630
[ 573.969297][ T7347] io_wqe_enqueue+0x6c3/0xbc0
[ 573.973967][ T7347] io_queue_iowq+0x282/0x5c0
[ 573.978548][ T7347] io_queue_sqe_fallback+0xf3/0x190
[ 573.983740][ T7347] io_submit_sqes+0x11db/0x1e60
[ 573.988583][ T7347] __do_sys_io_uring_enter+0xc1d/0x2540
[ 573.994124][ T7347] do_syscall_64+0x39/0xb0
[ 573.998532][ T7347] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 574.004463][ T7347]
[ 574.006806][ T7347] Freed by task 7347:
[ 574.010771][ T7347] kasan_save_stack+0x22/0x40
[ 574.015456][ T7347] kasan_set_track+0x25/0x30
[ 574.020051][ T7347] kasan_save_free_info+0x2e/0x40
[ 574.025151][ T7347] ____kasan_slab_free+0x160/0x1c0
[ 574.030249][ T7347] slab_free_freelist_hook+0x8b/0x1c0
[ 574.035657][ T7347] __kmem_cache_free+0xaf/0x3b0
[ 574.040521][ T7347] io_queue_worker_create+0x567/0x660
[ 574.045886][ T7347] io_wqe_dec_running+0x1e4/0x240
[ 574.050923][ T7347] io_wq_worker_sleeping+0xa6/0xc0
[ 574.056030][ T7347] schedule+0x16e/0x1b0
[ 574.060201][ T7347] schedule_preempt_disabled+0x13/0x20
[ 574.065668][ T7347] __mutex_lock+0xa48/0x1360
[ 574.070255][ T7347] io_buffer_select+0x8e5/0xbe0
[ 574.075110][ T7347] io_recv+0x851/0x1140
[ 574.079261][ T7347] io_issue_sqe+0x156/0x1220
[ 574.083848][ T7347] io_wq_submit_work+0x29c/0xdc0
[ 574.088777][ T7347] io_worker_handle_work+0xc41/0x1c60
[ 574.094165][ T7347] io_wqe_worker+0xa5b/0xe40
[ 574.098750][ T7347] ret_from_fork+0x1f/0x30
[ 574.103158][ T7347]
[ 574.105468][ T7347] Last potentially related work creation:
[ 574.111163][ T7347] kasan_save_stack+0x22/0x40
[ 574.115926][ T7347] __kasan_record_aux_stack+0xbc/0xd0
[ 574.121291][ T7347] task_work_add+0x7f/0x2c0
[ 574.125792][ T7347] io_queue_worker_create+0x41d/0x660
[ 574.131179][ T7347] io_wqe_dec_running+0x1e4/0x240
[ 574.136217][ T7347] io_wq_worker_sleeping+0xa6/0xc0
[ 574.141335][ T7347] schedule+0x16e/0x1b0
[ 574.145486][ T7347] schedule_preempt_disabled+0x13/0x20
[ 574.150941][ T7347] __mutex_lock+0xa48/0x1360
[ 574.155518][ T7347] io_buffer_select+0x8e5/0xbe0
[ 574.160362][ T7347] io_recv+0x851/0x1140
[ 574.164503][ T7347] io_issue_sqe+0x156/0x1220
[ 574.169090][ T7347] io_wq_submit_work+0x29c/0xdc0
[ 574.174019][ T7347] io_worker_handle_work+0xc41/0x1c60
[ 574.179382][ T7347] io_wqe_worker+0xa5b/0xe40
[ 574.183965][ T7347] ret_from_fork+0x1f/0x30
[ 574.188370][ T7347]
[ 574.190681][ T7347] The buggy address belongs to the object at ffff88807d07d000
[ 574.190681][ T7347] which belongs to the cache kmalloc-512 of size 512
[ 574.204720][ T7347] The buggy address is located 4 bytes inside of
[ 574.204720][ T7347] 512-byte region [ffff88807d07d000, ffff88807d07d200)
[ 574.217804][ T7347]
[ 574.220111][ T7347] The buggy address belongs to the physical page:
[ 574.226504][ T7347] page:ffffea0001f41f00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7d07c
[ 574.236666][ T7347] head:ffffea0001f41f00 order:2 compound_mapcount:0 subpages_mapcount:0 compound_pincount:0
[ 574.246730][ T7347] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
[ 574.254701][ T7347] raw: 00fff00000010200 ffff888012441c80 dead000000000122 0000000000000000
[ 574.263278][ T7347] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
[ 574.271842][ T7347] page dumped because: kasan: bad access detected
[ 574.278238][ T7347] page_owner tracks the page as allocated
[ 574.283936][ T7347] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 7295, tgid 7294 (syz-executor472), ts 573234305610, free_ts 572226277677
[ 574.305719][ T7347] get_page_from_freelist+0x119c/0x2ce0
[ 574.311317][ T7347] __alloc_pages+0x1cb/0x5b0
[ 574.315902][ T7347] allocate_slab+0xa7/0x350
[ 574.320401][ T7347] ___slab_alloc+0xa91/0x1400
[ 574.325082][ T7347] __slab_alloc.constprop.0+0x56/0xa0
[ 574.330441][ T7347] __kmem_cache_alloc_node+0x1a4/0x430
[ 574.335892][ T7347] kmalloc_node_trace+0x21/0x60
[ 574.340778][ T7347] create_io_worker+0x10c/0x630
[ 574.345622][ T7347] io_wqe_enqueue+0x6c3/0xbc0
[ 574.350291][ T7347] io_queue_iowq+0x282/0x5c0
[ 574.354874][ T7347] io_queue_sqe_fallback+0xf3/0x190
[ 574.360063][ T7347] io_submit_sqes+0x11db/0x1e60
[ 574.364905][ T7347] __do_sys_io_uring_enter+0xc1d/0x2540
[ 574.370465][ T7347] do_syscall_64+0x39/0xb0
[ 574.374894][ T7347] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 574.380779][ T7347] page last free stack trace:
[ 574.385440][ T7347] free_pcp_prepare+0x65c/0xc00
[ 574.390282][ T7347] free_unref_page+0x1d/0x490
[ 574.394948][ T7347] __unfreeze_partials+0x17c/0x1a0
[ 574.400056][ T7347] qlist_free_all+0x6a/0x170
[ 574.404679][ T7347] kasan_quarantine_reduce+0x192/0x220
[ 574.410129][ T7347] __kasan_slab_alloc+0x66/0x90
[ 574.414967][ T7347] __kmem_cache_alloc_node+0x1ea/0x430
[ 574.420413][ T7347] kmalloc_node_trace+0x21/0x60
[ 574.425255][ T7347] create_io_worker+0x10c/0x630
[ 574.430103][ T7347] io_wqe_enqueue+0x6c3/0xbc0
[ 574.434770][ T7347] io_queue_iowq+0x282/0x5c0
[ 574.439350][ T7347] io_queue_sqe_fallback+0xf3/0x190
[ 574.444541][ T7347] io_submit_sqes+0x11db/0x1e60
[ 574.449390][ T7347] __do_sys_io_uring_enter+0xc1d/0x2540
[ 574.454927][ T7347] do_syscall_64+0x39/0xb0
[ 574.459360][ T7347] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 574.465246][ T7347]
[ 574.467557][ T7347] Memory state around the buggy address:
[ 574.473168][ T7347] ffff88807d07cf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 574.481219][ T7347] ffff88807d07cf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 574.489274][ T7347] >ffff88807d07d000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 574.497318][ T7347] ^
[ 574.501365][ T7347] ffff88807d07d080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 574.509413][ T7347] ffff88807d07d100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 574.517455][ T7347] ==================================================================
[ 574.560259][ T7347] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 574.567490][ T7347] CPU: 0 PID: 7347 Comm: iou-wrk-7345 Not tainted 6.2.0-rc3-syzkaller-00021-g7dd4b804e080 #0
[ 574.577638][ T7347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 574.587683][ T7347] Call Trace:
[ 574.590951][ T7347]
[ 574.593872][ T7347] dump_stack_lvl+0xd1/0x138
[ 574.598464][ T7347] panic+0x2cc/0x626
[ 574.602378][ T7347] ? panic_print_sys_info.part.0+0x110/0x110
[ 574.608360][ T7347] ? preempt_schedule_thunk+0x1a/0x20
[ 574.613733][ T7347] ? preempt_schedule_common+0x59/0xc0
[ 574.619218][ T7347] check_panic_on_warn.cold+0x19/0x35
[ 574.624593][ T7347] end_report.part.0+0x36/0x73
[ 574.629526][ T7347] ? io_wq_worker_running+0x114/0x130
[ 574.634893][ T7347] kasan_report.cold+0xa/0xf
[ 574.639484][ T7347] ? io_wq_worker_running+0x114/0x130
[ 574.644853][ T7347] io_wq_worker_running+0x114/0x130
[ 574.650048][ T7347] schedule_preempt_disabled+0x13/0x20
[ 574.655504][ T7347] __mutex_lock+0xa48/0x1360
[ 574.660087][ T7347] ? io_buffer_select+0x8e5/0xbe0
[ 574.665109][ T7347] ? mutex_lock_io_nested+0x11a0/0x11a0
[ 574.670654][ T7347] ? __xa_clear_mark+0x120/0x120
[ 574.675584][ T7347] io_buffer_select+0x8e5/0xbe0
[ 574.680430][ T7347] io_recv+0x851/0x1140
[ 574.684574][ T7347] ? io_recvmsg+0x1e00/0x1e00
[ 574.689240][ T7347] ? lockdep_hardirqs_on_prepare+0x410/0x410
[ 574.695239][ T7347] ? __lock_acquire+0x166e/0x56d0
[ 574.700264][ T7347] ? find_held_lock+0x2d/0x110
[ 574.705034][ T7347] ? io_recvmsg+0x1e00/0x1e00
[ 574.709704][ T7347] io_issue_sqe+0x156/0x1220
[ 574.714292][ T7347] ? do_raw_spin_lock+0x124/0x2b0
[ 574.719337][ T7347] io_wq_submit_work+0x29c/0xdc0
[ 574.724275][ T7347] io_worker_handle_work+0xc41/0x1c60
[ 574.729658][ T7347] io_wqe_worker+0xa5b/0xe40
[ 574.734250][ T7347] ? io_worker_handle_work+0x1c60/0x1c60
[ 574.739884][ T7347] ? ret_from_fork+0x8/0x30
[ 574.744382][ T7347] ? lock_downgrade+0x6e0/0x6e0
[ 574.749223][ T7347] ? do_raw_spin_lock+0x124/0x2b0
[ 574.754245][ T7347] ? rwlock_bug.part.0+0x90/0x90
[ 574.759175][ T7347] ? _raw_spin_unlock_irq+0x23/0x50
[ 574.764365][ T7347] ? io_worker_handle_work+0x1c60/0x1c60
[ 574.769992][ T7347] ret_from_fork+0x1f/0x30
[ 574.774408][ T7347]
[ 574.777574][ T7347] Kernel Offset: disabled
[ 574.781894][ T7347] Rebooting in 86400 seconds..