Warning: Permanently added '10.128.1.30' (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 [ 63.706945][ T3685] [ 63.709395][ T3685] ====================================================== [ 63.716405][ T3685] WARNING: possible circular locking dependency detected [ 63.723424][ T3685] 6.1.86-syzkaller #0 Not tainted [ 63.728546][ T3685] ------------------------------------------------------ [ 63.735589][ T3685] syz-executor271/3685 is trying to acquire lock: [ 63.741992][ T3685] ffff8880b9835e90 (lock#9){+.+.}-{2:2}, at: __mmap_lock_do_trace_acquire_returned+0x84/0x670 [ 63.752280][ T3685] [ 63.752280][ T3685] but task is already holding lock: [ 63.759639][ T3685] ffff8880b983aa18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 [ 63.769138][ T3685] [ 63.769138][ T3685] which lock already depends on the new lock. [ 63.769138][ T3685] [ 63.779540][ T3685] [ 63.779540][ T3685] the existing dependency chain (in reverse order) is: [ 63.788537][ T3685] [ 63.788537][ T3685] -> #3 (&rq->__lock){-.-.}-{2:2}: [ 63.795844][ T3685] lock_acquire+0x1f8/0x5a0 [ 63.800891][ T3685] _raw_spin_lock_nested+0x2d/0x40 [ 63.806541][ T3685] raw_spin_rq_lock_nested+0x26/0x140 [ 63.812440][ T3685] task_fork_fair+0x5d/0x350 [ 63.817555][ T3685] sched_cgroup_fork+0x374/0x400 [ 63.823014][ T3685] copy_process+0x2442/0x4060 [ 63.828207][ T3685] kernel_clone+0x222/0x920 [ 63.833226][ T3685] user_mode_thread+0x12e/0x190 [ 63.838590][ T3685] rest_init+0x23/0x300 [ 63.843259][ T3685] start_kernel+0x0/0x53f [ 63.848101][ T3685] start_kernel+0x496/0x53f [ 63.853124][ T3685] secondary_startup_64_no_verify+0xcf/0xdb [ 63.859533][ T3685] [ 63.859533][ T3685] -> #2 (&p->pi_lock){-.-.}-{2:2}: [ 63.866821][ T3685] lock_acquire+0x1f8/0x5a0 [ 63.871844][ T3685] _raw_spin_lock_irqsave+0xd1/0x120 [ 63.877644][ T3685] try_to_wake_up+0xad/0x12e0 [ 63.882839][ T3685] complete_signal+0x796/0xbd0 [ 63.888123][ T3685] __send_signal_locked+0xb1a/0xdc0 [ 63.893837][ T3685] do_notify_parent+0xe2b/0x1100 [ 63.899295][ T3685] do_exit+0x172e/0x26a0 [ 63.904096][ T3685] do_group_exit+0x202/0x2b0 [ 63.909217][ T3685] __x64_sys_exit_group+0x3b/0x40 [ 63.914775][ T3685] do_syscall_64+0x3b/0xb0 [ 63.919729][ T3685] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 63.926156][ T3685] [ 63.926156][ T3685] -> #1 (&sighand->siglock){....}-{2:2}: [ 63.933998][ T3685] lock_acquire+0x1f8/0x5a0 [ 63.939046][ T3685] _raw_spin_lock_irqsave+0xd1/0x120 [ 63.944853][ T3685] __lock_task_sighand+0x145/0x2d0 [ 63.950484][ T3685] group_send_sig_info+0x26c/0x300 [ 63.956737][ T3685] bpf_send_signal_common+0x2d8/0x420 [ 63.962636][ T3685] bpf_send_signal_thread+0x12/0x20 [ 63.968352][ T3685] 0xffffffffa0000965 [ 63.972850][ T3685] bpf_trace_run4+0x253/0x470 [ 63.978046][ T3685] __mmap_lock_do_trace_acquire_returned+0x5e3/0x670 [ 63.985244][ T3685] lock_mm_and_find_vma+0x219/0x2e0 [ 63.990964][ T3685] exc_page_fault+0x169/0x660 [ 63.996158][ T3685] asm_exc_page_fault+0x22/0x30 [ 64.001542][ T3685] strncpy_from_user+0x159/0x360 [ 64.006996][ T3685] bpf_prog_load+0x188/0x1bb0 [ 64.012191][ T3685] __sys_bpf+0x382/0x6c0 [ 64.016958][ T3685] __x64_sys_bpf+0x78/0x90 [ 64.021905][ T3685] do_syscall_64+0x3b/0xb0 [ 64.026857][ T3685] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 64.033269][ T3685] [ 64.033269][ T3685] -> #0 (lock#9){+.+.}-{2:2}: [ 64.040145][ T3685] validate_chain+0x1661/0x5950 [ 64.045516][ T3685] __lock_acquire+0x125b/0x1f80 [ 64.050900][ T3685] lock_acquire+0x1f8/0x5a0 [ 64.055922][ T3685] __mmap_lock_do_trace_acquire_returned+0x9d/0x670 [ 64.063022][ T3685] stack_map_get_build_id_offset+0x99e/0x9c0 [ 64.069532][ T3685] __bpf_get_stack+0x495/0x570 [ 64.074812][ T3685] bpf_get_stack_raw_tp+0x1b2/0x220 [ 64.080522][ T3685] bpf_prog_e6cf5f9c69743609+0x3a/0x3e [ 64.086490][ T3685] bpf_trace_run4+0x253/0x470 [ 64.091677][ T3685] __schedule+0x2116/0x4550 [ 64.096697][ T3685] preempt_schedule_irq+0xf7/0x1c0 [ 64.102332][ T3685] irqentry_exit+0x53/0x80 [ 64.107261][ T3685] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 64.113759][ T3685] __sanitizer_cov_trace_pc+0x2c/0x60 [ 64.119830][ T3685] wp_page_copy+0x278/0x18c0 [ 64.124942][ T3685] handle_mm_fault+0x2525/0x5340 [ 64.130413][ T3685] exc_page_fault+0x26f/0x660 [ 64.135600][ T3685] asm_exc_page_fault+0x22/0x30 [ 64.140966][ T3685] [ 64.140966][ T3685] other info that might help us debug this: [ 64.140966][ T3685] [ 64.151179][ T3685] Chain exists of: [ 64.151179][ T3685] lock#9 --> &p->pi_lock --> &rq->__lock [ 64.151179][ T3685] [ 64.162729][ T3685] Possible unsafe locking scenario: [ 64.162729][ T3685] [ 64.170163][ T3685] CPU0 CPU1 [ 64.175514][ T3685] ---- ---- [ 64.180864][ T3685] lock(&rq->__lock); [ 64.184924][ T3685] lock(&p->pi_lock); [ 64.191512][ T3685] lock(&rq->__lock); [ 64.198089][ T3685] lock(lock#9); [ 64.201719][ T3685] [ 64.201719][ T3685] *** DEADLOCK *** [ 64.201719][ T3685] [ 64.209880][ T3685] 4 locks held by syz-executor271/3685: [ 64.215411][ T3685] #0: ffff88802343bd58 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x2e/0x2e0 [ 64.225324][ T3685] #1: ffff8880b983aa18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 [ 64.235240][ T3685] #2: ffffffff8d12ac40 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x16a/0x470 [ 64.244628][ T3685] #3: ffff88802343bd58 (&mm->mmap_lock){++++}-{3:3}, at: stack_map_get_build_id_offset+0x232/0x9c0 [ 64.255410][ T3685] [ 64.255410][ T3685] stack backtrace: [ 64.261284][ T3685] CPU: 0 PID: 3685 Comm: syz-executor271 Not tainted 6.1.86-syzkaller #0 [ 64.269683][ T3685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 64.279731][ T3685] Call Trace: [ 64.283002][ T3685] [ 64.285927][ T3685] dump_stack_lvl+0x1e3/0x2cb [ 64.290607][ T3685] ? nf_tcp_handle_invalid+0x642/0x642 [ 64.296072][ T3685] ? print_circular_bug+0x12b/0x1a0 [ 64.301264][ T3685] check_noncircular+0x2fa/0x3b0 [ 64.306193][ T3685] ? add_chain_block+0x850/0x850 [ 64.311118][ T3685] ? lockdep_lock+0x11f/0x2a0 [ 64.315794][ T3685] ? arch_stack_walk+0xf3/0x140 [ 64.320643][ T3685] validate_chain+0x1661/0x5950 [ 64.325505][ T3685] ? reacquire_held_locks+0x660/0x660 [ 64.330881][ T3685] ? mark_lock+0x9a/0x340 [ 64.335221][ T3685] ? mark_lock+0x9a/0x340 [ 64.339551][ T3685] __lock_acquire+0x125b/0x1f80 [ 64.344406][ T3685] lock_acquire+0x1f8/0x5a0 [ 64.348907][ T3685] ? __mmap_lock_do_trace_acquire_returned+0x84/0x670 [ 64.355662][ T3685] ? 0xffffffffa0002014 [ 64.359810][ T3685] ? read_lock_is_recursive+0x10/0x10 [ 64.365198][ T3685] ? stack_trace_save+0x1c0/0x1c0 [ 64.370220][ T3685] ? kernel_text_address+0x9f/0xd0 [ 64.375329][ T3685] ? __kernel_text_address+0x9/0x40 [ 64.380524][ T3685] ? down_read_trylock+0x24a/0x3b0 [ 64.385627][ T3685] ? stack_map_get_build_id_offset+0x232/0x9c0 [ 64.391777][ T3685] ? __mmap_lock_do_trace_acquire_returned+0x84/0x670 [ 64.398530][ T3685] __mmap_lock_do_trace_acquire_returned+0x9d/0x670 [ 64.405114][ T3685] ? __mmap_lock_do_trace_acquire_returned+0x84/0x670 [ 64.411869][ T3685] stack_map_get_build_id_offset+0x99e/0x9c0 [ 64.417847][ T3685] ? __lock_acquire+0x125b/0x1f80 [ 64.422883][ T3685] ? __bpf_get_stackid+0x910/0x910 [ 64.427991][ T3685] __bpf_get_stack+0x495/0x570 [ 64.432752][ T3685] ? stack_map_get_build_id_offset+0x9c0/0x9c0 [ 64.438911][ T3685] ? __cant_sleep+0x270/0x270 [ 64.443583][ T3685] bpf_get_stack_raw_tp+0x1b2/0x220 [ 64.448789][ T3685] bpf_prog_e6cf5f9c69743609+0x3a/0x3e [ 64.454242][ T3685] ? bpf_trace_run4+0x16a/0x470 [ 64.459083][ T3685] bpf_trace_run4+0x253/0x470 [ 64.463756][ T3685] ? bpf_trace_run3+0x440/0x440 [ 64.468602][ T3685] ? psi_task_switch+0x369/0x770 [ 64.473532][ T3685] __schedule+0x2116/0x4550 [ 64.478049][ T3685] ? __sched_text_start+0x8/0x8 [ 64.483345][ T3685] ? print_irqtrace_events+0x210/0x210 [ 64.488806][ T3685] ? preempt_schedule_irq+0xec/0x1c0 [ 64.494094][ T3685] preempt_schedule_irq+0xf7/0x1c0 [ 64.499203][ T3685] ? preempt_schedule_notrace+0x140/0x140 [ 64.504924][ T3685] ? __lock_acquire+0x125b/0x1f80 [ 64.509947][ T3685] ? rcu_is_watching+0x11/0xb0 [ 64.514703][ T3685] irqentry_exit+0x53/0x80 [ 64.519117][ T3685] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 64.525092][ T3685] RIP: 0010:__sanitizer_cov_trace_pc+0x2c/0x60 [ 64.531244][ T3685] Code: 04 24 65 48 8b 0d e4 df 77 7e 65 8b 15 e5 df 77 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 1c 16 00 00 00 74 2c <8b> 91 f8 15 00 00 83 fa 02 75 21 48 8b 91 00 16 00 00 48 8b 32 48 [ 64.550839][ T3685] RSP: 0000:ffffc90004b3fa78 EFLAGS: 00000246 [ 64.556902][ T3685] RAX: ffffffff81ce1368 RBX: ffffc90004b3fe28 RCX: ffff88807b0d8000 [ 64.564865][ T3685] RDX: 0000000080000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 64.572827][ T3685] RBP: ffffc90004b3fc30 R08: ffffffff81dee611 R09: fffffbfff1ce6ede [ 64.580795][ T3685] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888018fea958 [ 64.588765][ T3685] R13: ffffc90004b3fe10 R14: 000000000000fd84 R15: 000000000000fd84 [ 64.596730][ T3685] ? vma_alloc_folio+0x4c1/0x990 [ 64.601671][ T3685] ? wp_page_copy+0x278/0x18c0 [ 64.606433][ T3685] wp_page_copy+0x278/0x18c0 [ 64.611028][ T3685] ? fault_dirty_shared_page+0x3e0/0x3e0 [ 64.616660][ T3685] ? do_raw_spin_lock+0x14a/0x370 [ 64.621679][ T3685] ? mtree_range_walk+0x673/0x7c0 [ 64.626700][ T3685] handle_mm_fault+0x2525/0x5340 [ 64.631635][ T3685] ? mt_find+0x29a/0xc60 [ 64.635874][ T3685] ? mt_find+0x29a/0xc60 [ 64.640121][ T3685] ? numa_migrate_prep+0x250/0x250 [ 64.645252][ T3685] ? lock_mm_and_find_vma+0xae/0x2e0 [ 64.650533][ T3685] exc_page_fault+0x26f/0x660 [ 64.655204][ T3685] asm_exc_page_fault+0x22/0x30 [ 64.660053][ T3685] RIP: 0033:0x7f8054112bd0 [ 64.664457][ T3685] Code: 84 dd fe ff ff 4c 89 e7 e8 ed 90 00 00 e9 d0 fe ff ff 0f 1f 84 00 00 00 00 00 49 8b 06 48 89 45 00 48 85 c0 0f 85 85 00 00 00 05 39 35 0a 00 01 31 c0 87 05 09 31 0a 00 83 f8 01 0f 8f 84 00 [ 64.684052][ T3685] RSP: 002b:00007ffc78876da0 EFLAGS: 00010246 [ 64.690115][ T3685] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000004 [ 64.698076][ T3685] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 00007f80541b4ad8 executing program executing program [ 64.706038][ T3685] RBP: 00007f80541b3120 R08: 00007ffc78876e0c R09: 00007ffc78876e0c [ 64.714001][ T3685] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f80541b5ce8 [ 64.721963][ T3685] R13: 0000000000000000 R14: 00007f80541b5d00 R15: 00007f805410b6e0 [ 64.729932][ T3685] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program