Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.103' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 63.577807][ T8508] FAULT_INJECTION: forcing a failure. [ 63.577807][ T8508] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 63.591741][ T8508] CPU: 0 PID: 8508 Comm: syz-executor080 Not tainted 5.9.0-syzkaller #0 [ 63.600081][ T8508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.610140][ T8508] Call Trace: [ 63.613445][ T8508] dump_stack+0x107/0x163 [ 63.617778][ T8508] should_fail.cold+0x5/0xa [ 63.622288][ T8508] __alloc_pages_nodemask+0x189/0x730 [ 63.627664][ T8508] ? lock_release+0x710/0x710 [ 63.632342][ T8508] ? __alloc_pages_slowpath.constprop.0+0x2510/0x2510 [ 63.639133][ T8508] ? unlock_page_memcg+0x9f/0x160 [ 63.644193][ T8508] alloc_pages_current+0x191/0x2a0 [ 63.649312][ T8508] __get_free_pages+0x8/0x40 [ 63.653900][ T8508] __tlb_remove_page_size+0x253/0x420 [ 63.659276][ T8508] unmap_page_range+0xea7/0x2640 [ 63.664238][ T8508] ? vm_normal_page_pmd+0x510/0x510 [ 63.669455][ T8508] ? lock_downgrade+0x6d0/0x6d0 [ 63.674304][ T8508] ? uprobe_munmap+0x1c/0x560 [ 63.678986][ T8508] unmap_single_vma+0x198/0x300 [ 63.683859][ T8508] unmap_vmas+0x168/0x2e0 [ 63.688196][ T8508] ? zap_vma_ptes+0x100/0x100 [ 63.692905][ T8508] exit_mmap+0x2b1/0x530 [ 63.697153][ T8508] ? __ia32_sys_remap_file_pages+0x150/0x150 [ 63.703158][ T8508] ? __khugepaged_exit+0x2d9/0x3f0 [ 63.708277][ T8508] __mmput+0x122/0x470 [ 63.712352][ T8508] mmput+0x53/0x60 [ 63.716088][ T8508] do_exit+0xa31/0x2930 [ 63.720308][ T8508] ? mm_update_next_owner+0x7a0/0x7a0 [ 63.725710][ T8508] do_group_exit+0x125/0x310 [ 63.730333][ T8508] __x64_sys_exit_group+0x3a/0x50 [ 63.735368][ T8508] do_syscall_64+0x2d/0x70 [ 63.742049][ T8508] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.747959][ T8508] RIP: 0033:0x440198 [ 63.751848][ T8508] Code: Unable to access opcode bytes at RIP 0x44016e. [ 63.758687][ T8508] RSP: 002b:00007fff9fff8ed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 63.767103][ T8508] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440198 executing program executing program executing program [ 63.775071][ T8508] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 63.783041][ T8508] RBP: 00000000004bfe90 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 63.791014][ T8508] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 63.798986][ T8508] R13: 00000000006d2180 R14: 0000000000000000 R15: 0000000000000000 [ 63.811294][ T8513] FAULT_INJECTION: forcing a failure. [ 63.811294][ T8513] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 63.824613][ T8513] CPU: 1 PID: 8513 Comm: syz-executor080 Not tainted 5.9.0-syzkaller #0 [ 63.832945][ T8513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.842995][ T8513] Call Trace: [ 63.846292][ T8513] dump_stack+0x107/0x163 [ 63.850648][ T8513] should_fail.cold+0x5/0xa [ 63.855158][ T8513] __alloc_pages_nodemask+0x189/0x730 [ 63.860536][ T8513] ? lock_release+0x710/0x710 [ 63.865217][ T8513] ? __alloc_pages_slowpath.constprop.0+0x2510/0x2510 [ 63.871990][ T8513] ? unlock_page_memcg+0x9f/0x160 [ 63.877022][ T8513] alloc_pages_current+0x191/0x2a0 [ 63.882139][ T8513] __get_free_pages+0x8/0x40 [ 63.886729][ T8513] __tlb_remove_page_size+0x253/0x420 [ 63.892368][ T8513] unmap_page_range+0xea7/0x2640 [ 63.897333][ T8513] ? vm_normal_page_pmd+0x510/0x510 [ 63.902535][ T8513] ? lock_downgrade+0x6d0/0x6d0 [ 63.907382][ T8513] ? uprobe_munmap+0x1c/0x560 [ 63.912067][ T8513] unmap_single_vma+0x198/0x300 [ 63.916926][ T8513] unmap_vmas+0x168/0x2e0 [ 63.921257][ T8513] ? zap_vma_ptes+0x100/0x100 [ 63.925952][ T8513] exit_mmap+0x2b1/0x530 [ 63.930197][ T8513] ? __ia32_sys_remap_file_pages+0x150/0x150 [ 63.936199][ T8513] ? __khugepaged_exit+0x2d9/0x3f0 [ 63.941334][ T8513] __mmput+0x122/0x470 [ 63.945407][ T8513] mmput+0x53/0x60 [ 63.949132][ T8513] do_exit+0xa31/0x2930 [ 63.953300][ T8513] ? mm_update_next_owner+0x7a0/0x7a0 [ 63.958687][ T8513] do_group_exit+0x125/0x310 [ 63.963287][ T8513] __x64_sys_exit_group+0x3a/0x50 [ 63.968313][ T8513] do_syscall_64+0x2d/0x70 [ 63.972731][ T8513] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.978623][ T8513] RIP: 0033:0x440198 [ 63.982507][ T8513] Code: Unable to access opcode bytes at RIP 0x44016e. [ 63.989344][ T8513] RSP: 002b:00007fff9fff8ed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 63.997772][ T8513] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440198 [ 64.005749][ T8513] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 64.013728][ T8513] RBP: 00000000004bfe90 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 64.021698][ T8513] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 executing program [ 64.029674][ T8513] R13: 00000000006d2180 R14: 0000000000000000 R15: 0000000000000000 [ 64.041796][ T8516] FAULT_INJECTION: forcing a failure. [ 64.041796][ T8516] name failslab, interval 1, probability 0, space 0, times 1 [ 64.055918][ T8516] CPU: 0 PID: 8516 Comm: syz-executor080 Not tainted 5.9.0-syzkaller #0 [ 64.064258][ T8516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.074316][ T8516] Call Trace: [ 64.077622][ T8516] dump_stack+0x107/0x163 [ 64.081970][ T8516] should_fail.cold+0x5/0xa [ 64.086655][ T8516] ? tracepoint_probe_unregister+0x1cf/0x890 [ 64.093167][ T8516] should_failslab+0x5/0x10 [ 64.097671][ T8516] __kmalloc+0x2d6/0x3f0 [ 64.101927][ T8516] ? __bpf_trace_sched_kthread_stop_ret+0xb0/0xb0 [ 64.109159][ T8516] tracepoint_probe_unregister+0x1cf/0x890 [ 64.114976][ T8516] ? __bpf_trace_sched_kthread_stop_ret+0xb0/0xb0 [ 64.122014][ T8516] bpf_raw_tp_link_release+0x51/0xa0 [ 64.127418][ T8516] ? __local_bh_enable_ip+0x9c/0x110 [ 64.132706][ T8516] bpf_link_free+0xe6/0x1b0 [ 64.137212][ T8516] bpf_link_put+0x15e/0x1b0 [ 64.141716][ T8516] bpf_link_release+0x33/0x40 [ 64.146397][ T8516] __fput+0x285/0x920 [ 64.150382][ T8516] ? bpf_link_put+0x1b0/0x1b0 [ 64.155068][ T8516] task_work_run+0xdd/0x190 [ 64.159583][ T8516] exit_to_user_mode_prepare+0x17e/0x1a0 [ 64.165229][ T8516] syscall_exit_to_user_mode+0x38/0x260 [ 64.170808][ T8516] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.176703][ T8516] RIP: 0033:0x441529 [ 64.180606][ T8516] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 8b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 64.200233][ T8516] RSP: 002b:00007fff9fff8f18 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 64.208653][ T8516] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000441529 [ 64.217059][ T8516] RDX: fffffffffffffffd RSI: 0000000000000001 RDI: 0000000000000004 executing program executing program [ 64.225031][ T8516] RBP: 00007fff9fff8f30 R08: 0000000000000001 R09: 0000000000000000 [ 64.233001][ T8516] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 64.240972][ T8516] R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000 [ 64.262116][ T8518] FAULT_INJECTION: forcing a failure. [ 64.262116][ T8518] name failslab, interval 1, probability 0, space 0, times 0 [ 64.279786][ T8518] CPU: 0 PID: 8518 Comm: syz-executor080 Not tainted 5.9.0-syzkaller #0 [ 64.288211][ T8518] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.298282][ T8518] Call Trace: [ 64.301574][ T8518] dump_stack+0x107/0x163 [ 64.305910][ T8518] should_fail.cold+0x5/0xa [ 64.310420][ T8518] ? tracepoint_probe_unregister+0x1cf/0x890 [ 64.316398][ T8518] should_failslab+0x5/0x10 [ 64.320898][ T8518] __kmalloc+0x2d6/0x3f0 [ 64.325148][ T8518] ? __bpf_trace_sched_kthread_stop_ret+0xb0/0xb0 [ 64.331568][ T8518] tracepoint_probe_unregister+0x1cf/0x890 [ 64.337405][ T8518] ? __bpf_trace_sched_kthread_stop_ret+0xb0/0xb0 [ 64.343833][ T8518] bpf_raw_tp_link_release+0x51/0xa0 [ 64.349117][ T8518] ? __local_bh_enable_ip+0x9c/0x110 [ 64.354401][ T8518] bpf_link_free+0xe6/0x1b0 [ 64.358907][ T8518] bpf_link_put+0x15e/0x1b0 [ 64.363410][ T8518] bpf_link_release+0x33/0x40 [ 64.368111][ T8518] __fput+0x285/0x920 [ 64.372093][ T8518] ? bpf_link_put+0x1b0/0x1b0 [ 64.376776][ T8518] task_work_run+0xdd/0x190 [ 64.381291][ T8518] exit_to_user_mode_prepare+0x17e/0x1a0 [ 64.386947][ T8518] syscall_exit_to_user_mode+0x38/0x260 [ 64.392495][ T8518] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.398384][ T8518] RIP: 0033:0x441529 [ 64.402280][ T8518] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 8b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 64.421883][ T8518] RSP: 002b:00007fff9fff8f18 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 64.430312][ T8518] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000441529 [ 64.438282][ T8518] RDX: fffffffffffffffd RSI: 0000000000000001 RDI: 0000000000000004 [ 64.446270][ T8518] RBP: 00007fff9fff8f30 R08: 0000000000000001 R09: 0000000000000000 [ 64.454252][ T8518] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 64.462222][ T8518] R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000 [ 64.473252][ T3754] ================================================================== [ 64.483716][ T3754] BUG: KASAN: vmalloc-out-of-bounds in bpf_trace_run3+0x3e0/0x3f0 [ 64.491493][ T3754] Read of size 8 at addr ffffc90000e6c030 by task kworker/0:3/3754 [ 64.499359][ T3754] [ 64.501668][ T3754] CPU: 0 PID: 3754 Comm: kworker/0:3 Not tainted 5.9.0-syzkaller #0 [ 64.509628][ T3754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.519662][ T3754] Workqueue: 0x0 (events) [ 64.524065][ T3754] Call Trace: [ 64.527333][ T3754] dump_stack+0x107/0x163 [ 64.531639][ T3754] ? bpf_trace_run3+0x3e0/0x3f0 [ 64.536476][ T3754] ? bpf_trace_run3+0x3e0/0x3f0 [ 64.541305][ T3754] print_address_description.constprop.0.cold+0x5/0x4c8 [ 64.548229][ T3754] ? lock_release+0x710/0x710 [ 64.552882][ T3754] ? vprintk_func+0x95/0x1e0 [ 64.557448][ T3754] ? bpf_trace_run3+0x3e0/0x3f0 [ 64.562274][ T3754] ? bpf_trace_run3+0x3e0/0x3f0 [ 64.567108][ T3754] kasan_report.cold+0x1f/0x37 [ 64.571862][ T3754] ? bpf_trace_run3+0x3e0/0x3f0 [ 64.576732][ T3754] bpf_trace_run3+0x3e0/0x3f0 [ 64.581386][ T3754] ? bpf_trace_run2+0x3d0/0x3d0 [ 64.586215][ T3754] ? sched_clock_cpu+0x18/0x1f0 [ 64.591047][ T3754] __bpf_trace_sched_switch+0xdc/0x120 [ 64.596483][ T3754] ? __bpf_trace_sched_kthread_stop_ret+0xb0/0xb0 [ 64.602872][ T3754] ? psi_group_change+0x5bf/0x870 [ 64.607891][ T3754] ? __bpf_trace_sched_kthread_stop_ret+0xb0/0xb0 [ 64.614280][ T3754] __traceiter_sched_switch+0x64/0xb0 [ 64.619743][ T3754] __schedule+0xeb8/0x2130 [ 64.624151][ T3754] ? io_schedule_timeout+0x140/0x140 [ 64.629412][ T3754] ? rwlock_bug.part.0+0x90/0x90 [ 64.634338][ T3754] schedule+0xcf/0x270 [ 64.638384][ T3754] worker_thread+0x14c/0x1120 [ 64.643052][ T3754] ? __kthread_parkme+0x13f/0x1e0 [ 64.648067][ T3754] ? process_one_work+0x15a0/0x15a0 [ 64.653241][ T3754] kthread+0x3af/0x4a0 [ 64.657289][ T3754] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 64.663196][ T3754] ret_from_fork+0x1f/0x30 [ 64.667585][ T3754] [ 64.669886][ T3754] [ 64.672229][ T3754] Memory state around the buggy address: [ 64.677838][ T3754] ffffc90000e6bf00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 [ 64.685877][ T3754] ffffc90000e6bf80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 [ 64.693913][ T3754] >ffffc90000e6c000: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 [ 64.701944][ T3754] ^ [ 64.707563][ T3754] ffffc90000e6c080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 [ 64.715612][ T3754] ffffc90000e6c100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 [ 64.723645][ T3754] ================================================================== [ 64.731687][ T3754] Kernel panic - not syncing: panic_on_warn set ... [ 64.738285][ T3754] CPU: 0 PID: 3754 Comm: kworker/0:3 Tainted: G B 5.9.0-syzkaller #0 [ 64.747729][ T3754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.757784][ T3754] Workqueue: 0x0 (events) [ 64.762177][ T3754] Call Trace: [ 64.765448][ T3754] dump_stack+0x107/0x163 [ 64.769757][ T3754] ? bpf_trace_run3+0x350/0x3f0 [ 64.774584][ T3754] panic+0x306/0x73d [ 64.778454][ T3754] ? __warn_printk+0xf3/0xf3 [ 64.783032][ T3754] ? bpf_trace_run3+0x3e0/0x3f0 [ 64.787878][ T3754] ? bpf_trace_run3+0x3e0/0x3f0 [ 64.792725][ T3754] end_report+0x58/0x5e [ 64.796859][ T3754] kasan_report.cold+0xd/0x37 [ 64.801529][ T3754] ? bpf_trace_run3+0x3e0/0x3f0 [ 64.806373][ T3754] bpf_trace_run3+0x3e0/0x3f0 [ 64.811031][ T3754] ? bpf_trace_run2+0x3d0/0x3d0 [ 64.815876][ T3754] ? sched_clock_cpu+0x18/0x1f0 [ 64.820716][ T3754] __bpf_trace_sched_switch+0xdc/0x120 [ 64.826166][ T3754] ? __bpf_trace_sched_kthread_stop_ret+0xb0/0xb0 [ 64.832553][ T3754] ? psi_group_change+0x5bf/0x870 [ 64.837571][ T3754] ? __bpf_trace_sched_kthread_stop_ret+0xb0/0xb0 [ 64.843965][ T3754] __traceiter_sched_switch+0x64/0xb0 [ 64.849313][ T3754] __schedule+0xeb8/0x2130 [ 64.853716][ T3754] ? io_schedule_timeout+0x140/0x140 [ 64.858978][ T3754] ? rwlock_bug.part.0+0x90/0x90 [ 64.863891][ T3754] schedule+0xcf/0x270 [ 64.867948][ T3754] worker_thread+0x14c/0x1120 [ 64.872619][ T3754] ? __kthread_parkme+0x13f/0x1e0 [ 64.877632][ T3754] ? process_one_work+0x15a0/0x15a0 [ 64.882806][ T3754] kthread+0x3af/0x4a0 [ 64.886867][ T3754] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 64.892737][ T3754] ret_from_fork+0x1f/0x30 [ 64.897142][ T3754] [ 64.897146][ T3754] ====================================================== [ 64.897150][ T3754] WARNING: possible circular locking dependency detected [ 64.897152][ T3754] 5.9.0-syzkaller #0 Not tainted [ 64.897156][ T3754] ------------------------------------------------------ [ 64.897159][ T3754] kworker/0:3/3754 is trying to acquire lock: [ 64.897162][ T3754] ffffffff8b328558 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x60 [ 64.897172][ T3754] [ 64.897175][ T3754] but task is already holding lock: [ 64.897177][ T3754] ffffffff8b459e38 (report_lock){....}-{2:2}, at: kasan_report+0x94/0x160 [ 64.897186][ T3754] [ 64.897189][ T3754] which lock already depends on the new lock. [ 64.897190][ T3754] [ 64.897192][ T3754] [ 64.897195][ T3754] the existing dependency chain (in reverse order) is: [ 64.897196][ T3754] [ 64.897198][ T3754] -> #3 (report_lock){....}-{2:2}: [ 64.897207][ T3754] _raw_spin_lock_irqsave+0x39/0x50 [ 64.897210][ T3754] kasan_report+0x94/0x160 [ 64.897212][ T3754] bpf_trace_run3+0x3e0/0x3f0 [ 64.897215][ T3754] __bpf_trace_sched_switch+0xdc/0x120 [ 64.897218][ T3754] __traceiter_sched_switch+0x64/0xb0 [ 64.897220][ T3754] __schedule+0xeb8/0x2130 [ 64.897222][ T3754] schedule+0xcf/0x270 [ 64.897225][ T3754] worker_thread+0x14c/0x1120 [ 64.897227][ T3754] kthread+0x3af/0x4a0 [ 64.897229][ T3754] ret_from_fork+0x1f/0x30 [ 64.897231][ T3754] [ 64.897232][ T3754] -> #2 (&rq->lock){-.-.}-{2:2}: [ 64.897241][ T3754] _raw_spin_lock+0x2a/0x40 [ 64.897244][ T3754] task_fork_fair+0x74/0x4d0 [ 64.897246][ T3754] sched_fork+0x3f3/0xbd0 [ 64.897248][ T3754] copy_process+0x1e1b/0x6e90 [ 64.897251][ T3754] kernel_clone+0xe7/0xab0 [ 64.897254][ T3754] kernel_thread+0xb5/0xf0 [ 64.897258][ T3754] rest_init+0x23/0x388 [ 64.897260][ T3754] start_kernel+0x470/0x491 [ 64.897263][ T3754] secondary_startup_64_no_verify+0xa6/0xab [ 64.897264][ T3754] [ 64.897266][ T3754] -> #1 (&p->pi_lock){-.-.}-{2:2}: [ 64.897275][ T3754] _raw_spin_lock_irqsave+0x39/0x50 [ 64.897278][ T3754] try_to_wake_up+0x98/0x1300 [ 64.897280][ T3754] up+0x75/0xb0 [ 64.897283][ T3754] __up_console_sem+0x4a/0x80 [ 64.897285][ T3754] console_unlock+0x591/0xbb0 [ 64.897287][ T3754] do_con_write+0xceb/0x1dd0 [ 64.897290][ T3754] con_write+0x22/0xb0 [ 64.897292][ T3754] n_tty_write+0x3ce/0xf80 [ 64.897294][ T3754] tty_write+0x4d9/0x870 [ 64.897296][ T3754] vfs_write+0x28e/0x700 [ 64.897299][ T3754] ksys_write+0x12d/0x250 [ 64.897301][ T3754] do_syscall_64+0x2d/0x70 [ 64.897304][ T3754] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.897305][ T3754] [ 64.897307][ T3754] -> #0 ((console_sem).lock){....}-{2:2}: [ 64.897316][ T3754] __lock_acquire+0x2828/0x5590 [ 64.897319][ T3754] lock_acquire+0x1af/0x8b0 [ 64.897321][ T3754] _raw_spin_lock_irqsave+0x39/0x50 [ 64.897324][ T3754] down_trylock+0xe/0x60 [ 64.897326][ T3754] __down_trylock_console_sem+0x3e/0xd0 [ 64.897329][ T3754] vprintk_emit+0x14f/0x4c0 [ 64.897331][ T3754] vprintk_func+0x8d/0x1e0 [ 64.897333][ T3754] printk+0xba/0xed [ 64.897336][ T3754] kasan_report+0xa4/0x160 [ 64.897338][ T3754] bpf_trace_run3+0x3e0/0x3f0 [ 64.897341][ T3754] __bpf_trace_sched_switch+0xdc/0x120 [ 64.897344][ T3754] __traceiter_sched_switch+0x64/0xb0 [ 64.897346][ T3754] __schedule+0xeb8/0x2130 [ 64.897349][ T3754] schedule+0xcf/0x270 [ 64.897351][ T3754] worker_thread+0x14c/0x1120 [ 64.897353][ T3754] kthread+0x3af/0x4a0 [ 64.897356][ T3754] ret_from_fork+0x1f/0x30 [ 64.897357][ T3754] [ 64.897360][ T3754] other info that might help us debug this: [ 64.897361][ T3754] [ 64.897363][ T3754] Chain exists of: [ 64.897365][ T3754] (console_sem).lock --> &rq->lock --> report_lock [ 64.897377][ T3754] [ 64.897379][ T3754] Possible unsafe locking scenario: [ 64.897380][ T3754] [ 64.897383][ T3754] CPU0 CPU1 [ 64.897386][ T3754] ---- ---- [ 64.897387][ T3754] lock(report_lock); [ 64.897393][ T3754] lock(&rq->lock); [ 64.897399][ T3754] lock(report_lock); [ 64.897404][ T3754] lock((console_sem).lock); [ 64.897408][ T3754] [ 64.897410][ T3754] *** DEADLOCK *** [ 64.897412][ T3754] [ 64.897414][ T3754] 3 locks held by kworker/0:3/3754: [ 64.897416][ T3754] #0: ffff8880b9e34cd8 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x21a/0x2130 [ 64.897427][ T3754] #1: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run3+0x0/0x3f0 [ 64.897438][ T3754] #2: ffffffff8b459e38 (report_lock){....}-{2:2}, at: kasan_report+0x94/0x160 [ 64.897449][ T3754] [ 64.897451][ T3754] stack backtrace: [ 64.897454][ T3754] CPU: 0 PID: 3754 Comm: kworker/0:3 Not tainted 5.9.0-syzkaller #0 [ 64.897459][ T3754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.897461][ T3754] Workqueue: 0x0 (events) [ 64.897465][ T3754] Call Trace: [ 64.897467][ T3754] dump_stack+0x107/0x163 [ 64.897470][ T3754] check_noncircular+0x25f/0x2e0 [ 64.897472][ T3754] ? print_circular_bug+0x360/0x360 [ 64.897474][ T3754] ? lockdep_lock+0xea/0x200 [ 64.897477][ T3754] ? alloc_chain_hlocks+0x230/0x770 [ 64.897479][ T3754] __lock_acquire+0x2828/0x5590 [ 64.897482][ T3754] ? info_print_ext_header.constprop.0+0x280/0x280 [ 64.897485][ T3754] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 64.897487][ T3754] lock_acquire+0x1af/0x8b0 [ 64.897489][ T3754] ? down_trylock+0xe/0x60 [ 64.897491][ T3754] ? lock_release+0x710/0x710 [ 64.897493][ T3754] ? find_held_lock+0x2d/0x110 [ 64.897496][ T3754] ? vprintk_emit+0xdf/0x4c0 [ 64.897498][ T3754] ? lock_downgrade+0x6d0/0x6d0 [ 64.897500][ T3754] ? vprintk_func+0x8d/0x1e0 [ 64.897502][ T3754] _raw_spin_lock_irqsave+0x39/0x50 [ 64.897505][ T3754] ? down_trylock+0xe/0x60 [ 64.897507][ T3754] down_trylock+0xe/0x60 [ 64.897509][ T3754] ? vprintk_func+0x8d/0x1e0 [ 64.897511][ T3754] __down_trylock_console_sem+0x3e/0xd0 [ 64.897514][ T3754] vprintk_emit+0x14f/0x4c0 [ 64.897516][ T3754] ? bpf_trace_run3+0x3e0/0x3f0 [ 64.897518][ T3754] vprintk_func+0x8d/0x1e0 [ 64.897520][ T3754] printk+0xba/0xed [ 64.897523][ T3754] ? record_print_text.cold+0x16/0x16 [ 64.897525][ T3754] ? lock_release+0x710/0x710 [ 64.897527][ T3754] ? do_raw_spin_lock+0x120/0x2b0 [ 64.897530][ T3754] kasan_report+0xa4/0x160 [ 64.897532][ T3754] ? bpf_trace_run3+0x3e0/0x3f0 [ 64.897534][ T3754] bpf_trace_run3+0x3e0/0x3f0 [ 64.897536][ T3754] ? bpf_trace_run2+0x3d0/0x3d0 [ 64.897539][ T3754] ? sched_clock_cpu+0x18/0x1f0 [ 64.897541][ T3754] __bpf_trace_sched_switch+0xdc/0x120 [ 64.897544][ T3754] ? __bpf_trace_sched_kthread_stop_ret+0xb0/0xb0 [ 64.897546][ T3754] ? psi_group_change+0x5bf/0x870 [ 64.897549][ T3754] ? __bpf_trace_sched_kthread_stop_ret+0xb0/0xb0 [ 64.897552][ T3754] __traceiter_sched_switch+0x64/0xb0 [ 64.897554][ T3754] __schedule+0xeb8/0x2130 [ 64.897556][ T3754] ? io_schedule_timeout+0x140/0x140 [ 64.897559][ T3754] ? rwlock_bug.part.0+0x90/0x90 [ 64.897561][ T3754] schedule+0xcf/0x270 [ 64.897563][ T3754] worker_thread+0x14c/0x1120 [ 64.897565][ T3754] ? __kthread_parkme+0x13f/0x1e0 [ 64.897568][ T3754] ? process_one_work+0x15a0/0x15a0 [ 64.897570][ T3754] kthread+0x3af/0x4a0 [ 64.897572][ T3754] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 64.897574][ T3754] ret_from_fork+0x1f/0x30 [ 65.970836][ T3754] Shutting down cpus with NMI [ 66.701940][ T3754] Kernel Offset: disabled [ 66.706255][ T3754] Rebooting in 86400 seconds..