Warning: Permanently added '10.128.0.212' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.466988][ T5088] [ 63.469348][ T5088] ====================================================== [ 63.476342][ T5088] WARNING: possible circular locking dependency detected [ 63.483333][ T5088] 6.10.0-rc5-syzkaller-00169-gdc6be0b73f4f #0 Not tainted [ 63.490419][ T5088] ------------------------------------------------------ [ 63.497419][ T5088] syz-executor329/5088 is trying to acquire lock: [ 63.503815][ T5088] ffff8880b94387e8 (lock#9){+.+.}-{2:2}, at: __mmap_lock_do_trace_acquire_returned+0x8f/0x630 [ 63.514105][ T5088] [ 63.514105][ T5088] but task is already holding lock: [ 63.521438][ T5088] ffff8880b943e798 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [ 63.530892][ T5088] [ 63.530892][ T5088] which lock already depends on the new lock. [ 63.530892][ T5088] [ 63.541266][ T5088] [ 63.541266][ T5088] the existing dependency chain (in reverse order) is: [ 63.550337][ T5088] [ 63.550337][ T5088] -> #3 (&rq->__lock){-.-.}-{2:2}: [ 63.557603][ T5088] lock_acquire+0x1ed/0x550 [ 63.562603][ T5088] _raw_spin_lock_nested+0x31/0x40 [ 63.568214][ T5088] raw_spin_rq_lock_nested+0x2a/0x140 [ 63.574085][ T5088] task_fork_fair+0x61/0x1e0 [ 63.579168][ T5088] sched_cgroup_fork+0x37c/0x410 [ 63.584704][ T5088] copy_process+0x2217/0x3dc0 [ 63.589871][ T5088] kernel_clone+0x226/0x8f0 [ 63.594868][ T5088] user_mode_thread+0x132/0x1a0 [ 63.600209][ T5088] rest_init+0x23/0x300 [ 63.604855][ T5088] start_kernel+0x47a/0x500 [ 63.609862][ T5088] x86_64_start_reservations+0x2a/0x30 [ 63.615818][ T5088] x86_64_start_kernel+0x99/0xa0 [ 63.621247][ T5088] common_startup_64+0x13e/0x147 [ 63.626680][ T5088] [ 63.626680][ T5088] -> #2 (&p->pi_lock){-.-.}-{2:2}: [ 63.633950][ T5088] lock_acquire+0x1ed/0x550 [ 63.638955][ T5088] _raw_spin_lock_irqsave+0xd5/0x120 [ 63.644743][ T5088] try_to_wake_up+0xb0/0x1470 [ 63.649917][ T5088] signal_wake_up_state+0xb4/0x120 [ 63.655526][ T5088] complete_signal+0x94a/0xcf0 [ 63.660786][ T5088] __send_signal_locked+0xb1b/0xdc0 [ 63.666478][ T5088] do_notify_parent+0xd96/0x10a0 [ 63.671913][ T5088] do_exit+0x181d/0x27e0 [ 63.676648][ T5088] do_group_exit+0x207/0x2c0 [ 63.681730][ T5088] __x64_sys_exit_group+0x3f/0x40 [ 63.687249][ T5088] do_syscall_64+0xf3/0x230 [ 63.692247][ T5088] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 63.698635][ T5088] [ 63.698635][ T5088] -> #1 (&sighand->siglock){-...}-{2:2}: [ 63.706438][ T5088] lock_acquire+0x1ed/0x550 [ 63.711450][ T5088] _raw_spin_lock_irqsave+0xd5/0x120 [ 63.717231][ T5088] __lock_task_sighand+0x149/0x2d0 [ 63.722850][ T5088] group_send_sig_info+0x274/0x310 [ 63.728479][ T5088] bpf_send_signal_common+0x2dd/0x430 [ 63.734359][ T5088] bpf_send_signal_thread+0x16/0x20 [ 63.740053][ T5088] 0xffffffffa000086d [ 63.744535][ T5088] bpf_trace_run4+0x334/0x590 [ 63.749708][ T5088] __mmap_lock_do_trace_acquire_returned+0x5c8/0x630 [ 63.756879][ T5088] lock_mm_and_find_vma+0x213/0x2f0 [ 63.762575][ T5088] exc_page_fault+0x1bf/0x8c0 [ 63.767752][ T5088] asm_exc_page_fault+0x26/0x30 [ 63.773100][ T5088] __put_user_8+0x11/0x20 [ 63.777939][ T5088] __rseq_handle_notify_resume+0x666/0x14e0 [ 63.784327][ T5088] syscall_exit_to_user_mode+0x114/0x370 [ 63.790460][ T5088] do_syscall_64+0x100/0x230 [ 63.795548][ T5088] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 63.801939][ T5088] [ 63.801939][ T5088] -> #0 (lock#9){+.+.}-{2:2}: [ 63.808778][ T5088] validate_chain+0x18e0/0x5900 [ 63.814129][ T5088] __lock_acquire+0x1346/0x1fd0 [ 63.819477][ T5088] lock_acquire+0x1ed/0x550 [ 63.824476][ T5088] __mmap_lock_do_trace_acquire_returned+0xa8/0x630 [ 63.831571][ T5088] stack_map_get_build_id_offset+0x9af/0x9d0 [ 63.838053][ T5088] __bpf_get_stack+0x4ad/0x5a0 [ 63.843312][ T5088] bpf_get_stack_raw_tp+0x1a3/0x240 [ 63.849009][ T5088] bpf_prog_ec3b2eefa702d8d3+0x42/0x46 [ 63.854960][ T5088] bpf_trace_run2+0x2ec/0x540 [ 63.860135][ T5088] trace_tlb_flush+0x118/0x140 [ 63.865396][ T5088] switch_mm_irqs_off+0x7cb/0xae0 [ 63.870921][ T5088] __schedule+0x1066/0x4a20 [ 63.875920][ T5088] schedule+0x14b/0x320 [ 63.880572][ T5088] do_nanosleep+0x197/0x600 [ 63.885572][ T5088] hrtimer_nanosleep+0x227/0x470 [ 63.891005][ T5088] __se_sys_clock_nanosleep+0x32b/0x3c0 [ 63.897047][ T5088] do_syscall_64+0xf3/0x230 [ 63.902048][ T5088] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 63.908440][ T5088] [ 63.908440][ T5088] other info that might help us debug this: [ 63.908440][ T5088] [ 63.918637][ T5088] Chain exists of: [ 63.918637][ T5088] lock#9 --> &p->pi_lock --> &rq->__lock [ 63.918637][ T5088] [ 63.930168][ T5088] Possible unsafe locking scenario: [ 63.930168][ T5088] [ 63.937593][ T5088] CPU0 CPU1 [ 63.942931][ T5088] ---- ---- [ 63.948267][ T5088] lock(&rq->__lock); [ 63.952309][ T5088] lock(&p->pi_lock); [ 63.958868][ T5088] lock(&rq->__lock); [ 63.965428][ T5088] lock(lock#9); [ 63.969039][ T5088] [ 63.969039][ T5088] *** DEADLOCK *** [ 63.969039][ T5088] [ 63.977152][ T5088] 3 locks held by syz-executor329/5088: [ 63.982662][ T5088] #0: ffff8880b943e798 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [ 63.992549][ T5088] #1: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x1fc/0x540 [ 64.001913][ T5088] #2: ffff888020ea0198 (&mm->mmap_lock){++++}-{3:3}, at: stack_map_get_build_id_offset+0x237/0x9d0 [ 64.012664][ T5088] [ 64.012664][ T5088] stack backtrace: [ 64.018531][ T5088] CPU: 0 PID: 5088 Comm: syz-executor329 Not tainted 6.10.0-rc5-syzkaller-00169-gdc6be0b73f4f #0 [ 64.028996][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 64.039025][ T5088] Call Trace: [ 64.042280][ T5088] [ 64.045186][ T5088] dump_stack_lvl+0x241/0x360 [ 64.049839][ T5088] ? __pfx_dump_stack_lvl+0x10/0x10 [ 64.055013][ T5088] ? print_circular_bug+0x130/0x1a0 [ 64.060186][ T5088] check_noncircular+0x36a/0x4a0 [ 64.065100][ T5088] ? __pfx_check_noncircular+0x10/0x10 [ 64.070535][ T5088] ? queued_spin_lock_slowpath+0x42/0x50 [ 64.076139][ T5088] ? lockdep_lock+0x1b0/0x2b0 [ 64.080790][ T5088] ? __lock_acquire+0x1346/0x1fd0 [ 64.085785][ T5088] validate_chain+0x18e0/0x5900 [ 64.090627][ T5088] ? __pfx_validate_chain+0x10/0x10 [ 64.095808][ T5088] ? validate_chain+0x11e/0x5900 [ 64.100720][ T5088] ? page_ext_put+0x97/0xc0 [ 64.105199][ T5088] ? __pfx_validate_chain+0x10/0x10 [ 64.110371][ T5088] ? validate_chain+0x11e/0x5900 [ 64.115285][ T5088] ? __pfx_validate_chain+0x10/0x10 [ 64.120459][ T5088] ? mark_lock+0x9a/0x350 [ 64.124782][ T5088] ? mark_lock+0x9a/0x350 [ 64.129093][ T5088] __lock_acquire+0x1346/0x1fd0 [ 64.133925][ T5088] lock_acquire+0x1ed/0x550 [ 64.138405][ T5088] ? __mmap_lock_do_trace_acquire_returned+0x8f/0x630 [ 64.145153][ T5088] ? __pfx_lock_acquire+0x10/0x10 [ 64.150159][ T5088] ? validate_chain+0x11e/0x5900 [ 64.155075][ T5088] ? validate_chain+0x11e/0x5900 [ 64.159998][ T5088] ? exc_int3+0xe/0x80 [ 64.164048][ T5088] ? __mmap_lock_do_trace_acquire_returned+0x8f/0x630 [ 64.170783][ T5088] __mmap_lock_do_trace_acquire_returned+0xa8/0x630 [ 64.177956][ T5088] ? __mmap_lock_do_trace_acquire_returned+0x8f/0x630 [ 64.184710][ T5088] stack_map_get_build_id_offset+0x9af/0x9d0 [ 64.190667][ T5088] ? __pfx_stack_map_get_build_id_offset+0x10/0x10 [ 64.197145][ T5088] __bpf_get_stack+0x4ad/0x5a0 [ 64.201885][ T5088] ? __pfx___bpf_get_stack+0x10/0x10 [ 64.207143][ T5088] ? __pfx___cant_migrate+0x10/0x10 [ 64.212315][ T5088] bpf_get_stack_raw_tp+0x1a3/0x240 [ 64.217490][ T5088] ? bpf_trace_run2+0x1fc/0x540 [ 64.222315][ T5088] bpf_prog_ec3b2eefa702d8d3+0x42/0x46 [ 64.227756][ T5088] bpf_trace_run2+0x2ec/0x540 [ 64.232415][ T5088] ? __pfx_bpf_trace_run2+0x10/0x10 [ 64.237588][ T5088] trace_tlb_flush+0x118/0x140 [ 64.242331][ T5088] switch_mm_irqs_off+0x7cb/0xae0 [ 64.247332][ T5088] ? __pfx_switch_mm_irqs_off+0x10/0x10 [ 64.252854][ T5088] __schedule+0x1066/0x4a20 [ 64.257335][ T5088] ? __pfx___schedule+0x10/0x10 [ 64.262157][ T5088] ? __pfx_lock_release+0x10/0x10 [ 64.267153][ T5088] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 64.273017][ T5088] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 64.278881][ T5088] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 64.285178][ T5088] ? schedule+0x90/0x320 [ 64.289390][ T5088] schedule+0x14b/0x320 [ 64.293532][ T5088] do_nanosleep+0x197/0x600 [ 64.298012][ T5088] ? do_nanosleep+0x80/0x600 [ 64.302574][ T5088] ? __pfx_do_nanosleep+0x10/0x10 [ 64.307572][ T5088] ? __asan_memset+0x23/0x50 [ 64.312133][ T5088] ? __hrtimer_init+0x170/0x250 [ 64.316967][ T5088] hrtimer_nanosleep+0x227/0x470 [ 64.321881][ T5088] ? __pfx_hrtimer_nanosleep+0x10/0x10 [ 64.327314][ T5088] ? __pfx_hrtimer_wakeup+0x10/0x10 [ 64.332485][ T5088] ? __pfx_get_timespec64+0x10/0x10 [ 64.337661][ T5088] __se_sys_clock_nanosleep+0x32b/0x3c0 [ 64.343180][ T5088] ? __pfx___se_sys_clock_nanosleep+0x10/0x10 [ 64.349222][ T5088] ? do_syscall_64+0x100/0x230 [ 64.353966][ T5088] ? do_syscall_64+0xb6/0x230 [ 64.358620][ T5088] do_syscall_64+0xf3/0x230 [ 64.363099][ T5088] ? clear_bhb_loop+0x35/0x90 [ 64.367748][ T5088] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 64.373628][ T5088] RIP: 0033:0x7f05e0d9cdf3 [ 64.378017][ T5088] Code: Unable to access opcode bytes at 0x7f05e0d9cdc9. [ 64.385017][ T5088] RSP: 002b:00007ffc5ca73888 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6 [ 64.393403][ T5088] RAX: ffffffffffffffda RBX: 00000000000014f5 RCX: 00007f05e0d9cdf3 [ 64.401347][ T5088] RDX: 00007ffc5ca738a0 RSI: 0000000000000000 RDI: 0000000000000000 [ 64.409290][ T5088] RBP: 000000000000f7c8 R08: 000000001a6917cc R09: 7fffffffffffffff executing program executing program [ 64.417233][ T5088] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc5ca738dc [ 64.425176][ T5088] R13: 431bde82d7b634db R14: 00007ffc5ca738f0 R15: 0000000000000001 [ 64.433123][ T5088] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program