Warning: Permanently added '10.128.1.85' (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 [ 66.244945][ T3561] [ 66.247426][ T3561] ====================================================== [ 66.254456][ T3561] WARNING: possible circular locking dependency detected [ 66.261477][ T3561] 6.1.90-syzkaller #0 Not tainted [ 66.266499][ T3561] ------------------------------------------------------ [ 66.273508][ T3561] syz-executor172/3561 is trying to acquire lock: [ 66.279916][ T3561] ffff88813fedc598 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xad/0x12e0 [ 66.288900][ T3561] [ 66.288900][ T3561] but task is already holding lock: [ 66.296259][ T3561] ffff8880b9835e90 (lock#9){+.+.}-{2:2}, at: __mmap_lock_do_trace_acquire_returned+0x84/0x670 [ 66.306531][ T3561] [ 66.306531][ T3561] which lock already depends on the new lock. [ 66.306531][ T3561] [ 66.316930][ T3561] [ 66.316930][ T3561] the existing dependency chain (in reverse order) is: [ 66.325945][ T3561] [ 66.325945][ T3561] -> #2 (lock#9){+.+.}-{2:2}: [ 66.332850][ T3561] lock_acquire+0x1f8/0x5a0 [ 66.337976][ T3561] __mmap_lock_do_trace_acquire_returned+0x9d/0x670 [ 66.345090][ T3561] stack_map_get_build_id_offset+0x99e/0x9c0 [ 66.351790][ T3561] __bpf_get_stack+0x495/0x570 [ 66.357192][ T3561] bpf_get_stack_raw_tp+0x1b2/0x220 [ 66.362961][ T3561] bpf_prog_29a9b850630374f8+0xa/0x25 [ 66.368858][ T3561] bpf_trace_run2+0x1fd/0x410 [ 66.374077][ T3561] trace_tlb_flush+0x151/0x1a0 [ 66.379364][ T3561] switch_mm_irqs_off+0x84a/0xc20 [ 66.384938][ T3561] __schedule+0x1140/0x4550 [ 66.389999][ T3561] preempt_schedule_common+0x83/0xd0 [ 66.395831][ T3561] preempt_schedule+0xd9/0xe0 [ 66.401076][ T3561] preempt_schedule_thunk+0x16/0x18 [ 66.406799][ T3561] _raw_spin_unlock+0x36/0x40 [ 66.412004][ T3561] __text_poke+0x81a/0x9a0 [ 66.416946][ T3561] text_poke_copy+0x65/0x90 [ 66.421980][ T3561] bpf_arch_text_copy+0x21/0x40 [ 66.427372][ T3561] bpf_jit_binary_pack_finalize+0x36/0x80 [ 66.433625][ T3561] bpf_int_jit_compile+0xbdf3/0xca80 [ 66.439448][ T3561] bpf_prog_select_runtime+0x86d/0xb40 [ 66.445446][ T3561] bpf_prog_load+0x1348/0x1bb0 [ 66.450749][ T3561] __sys_bpf+0x382/0x6c0 [ 66.455521][ T3561] __x64_sys_bpf+0x78/0x90 [ 66.460465][ T3561] do_syscall_64+0x3b/0xb0 [ 66.465508][ T3561] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 66.472032][ T3561] [ 66.472032][ T3561] -> #1 (&rq->__lock){-.-.}-{2:2}: [ 66.479350][ T3561] lock_acquire+0x1f8/0x5a0 [ 66.484390][ T3561] _raw_spin_lock_nested+0x2d/0x40 [ 66.490040][ T3561] raw_spin_rq_lock_nested+0x26/0x140 [ 66.495939][ T3561] task_fork_fair+0x5d/0x350 [ 66.501143][ T3561] sched_cgroup_fork+0x374/0x400 [ 66.506604][ T3561] copy_process+0x2442/0x4060 [ 66.511798][ T3561] kernel_clone+0x222/0x920 [ 66.516909][ T3561] user_mode_thread+0x12e/0x190 [ 66.522274][ T3561] rest_init+0x23/0x300 [ 66.526968][ T3561] start_kernel+0x0/0x53f [ 66.531821][ T3561] start_kernel+0x496/0x53f [ 66.536852][ T3561] secondary_startup_64_no_verify+0xcf/0xdb [ 66.543269][ T3561] [ 66.543269][ T3561] -> #0 (&p->pi_lock){-.-.}-{2:2}: [ 66.550565][ T3561] validate_chain+0x1661/0x5950 [ 66.555949][ T3561] __lock_acquire+0x125b/0x1f80 [ 66.561415][ T3561] lock_acquire+0x1f8/0x5a0 [ 66.566443][ T3561] _raw_spin_lock_irqsave+0xd1/0x120 [ 66.572258][ T3561] try_to_wake_up+0xad/0x12e0 [ 66.577507][ T3561] rcu_read_unlock_special+0x3d2/0x540 [ 66.583512][ T3561] __rcu_read_unlock+0x92/0x100 [ 66.588892][ T3561] put_memcg_path_buf+0xde/0x110 [ 66.594350][ T3561] __mmap_lock_do_trace_acquire_returned+0x1f7/0x670 [ 66.601817][ T3561] lock_mm_and_find_vma+0x219/0x2e0 [ 66.607542][ T3561] exc_page_fault+0x169/0x660 [ 66.613521][ T3561] asm_exc_page_fault+0x22/0x30 [ 66.618900][ T3561] [ 66.618900][ T3561] other info that might help us debug this: [ 66.618900][ T3561] [ 66.629122][ T3561] Chain exists of: [ 66.629122][ T3561] &p->pi_lock --> &rq->__lock --> lock#9 [ 66.629122][ T3561] [ 66.640704][ T3561] Possible unsafe locking scenario: [ 66.640704][ T3561] [ 66.648150][ T3561] CPU0 CPU1 [ 66.653592][ T3561] ---- ---- [ 66.658973][ T3561] lock(lock#9); [ 66.662623][ T3561] lock(&rq->__lock); [ 66.669224][ T3561] lock(lock#9); [ 66.675404][ T3561] lock(&p->pi_lock); [ 66.679472][ T3561] [ 66.679472][ T3561] *** DEADLOCK *** [ 66.679472][ T3561] [ 66.687609][ T3561] 3 locks held by syz-executor172/3561: [ 66.693151][ T3561] #0: ffff8880289588d8 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x2e/0x2e0 [ 66.703079][ T3561] #1: ffff8880b9835e90 (lock#9){+.+.}-{2:2}, at: __mmap_lock_do_trace_acquire_returned+0x84/0x670 [ 66.713791][ T3561] #2: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: get_mm_memcg_path+0xb1/0x600 [ 66.723378][ T3561] [ 66.723378][ T3561] stack backtrace: [ 66.729267][ T3561] CPU: 0 PID: 3561 Comm: syz-executor172 Not tainted 6.1.90-syzkaller #0 [ 66.737691][ T3561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 66.747857][ T3561] Call Trace: [ 66.751140][ T3561] [ 66.754070][ T3561] dump_stack_lvl+0x1e3/0x2cb [ 66.758783][ T3561] ? nf_tcp_handle_invalid+0x642/0x642 [ 66.764753][ T3561] ? print_circular_bug+0x12b/0x1a0 [ 66.769963][ T3561] check_noncircular+0x2fa/0x3b0 [ 66.774915][ T3561] ? reacquire_held_locks+0x660/0x660 [ 66.780353][ T3561] ? add_chain_block+0x850/0x850 [ 66.785322][ T3561] ? lockdep_lock+0x11f/0x2a0 [ 66.790113][ T3561] ? _find_first_zero_bit+0xd0/0x100 [ 66.795498][ T3561] validate_chain+0x1661/0x5950 [ 66.800374][ T3561] ? validate_chain+0x112/0x5950 [ 66.805347][ T3561] ? reacquire_held_locks+0x660/0x660 [ 66.810756][ T3561] ? reacquire_held_locks+0x660/0x660 [ 66.816350][ T3561] ? page_ext_put+0x98/0xb0 [ 66.820962][ T3561] ? mark_lock+0x9a/0x340 [ 66.825306][ T3561] __lock_acquire+0x125b/0x1f80 [ 66.830195][ T3561] lock_acquire+0x1f8/0x5a0 [ 66.834754][ T3561] ? try_to_wake_up+0xad/0x12e0 [ 66.839638][ T3561] ? read_lock_is_recursive+0x10/0x10 [ 66.845050][ T3561] ? mark_lock+0x9a/0x340 [ 66.849479][ T3561] ? __lock_acquire+0x125b/0x1f80 [ 66.854536][ T3561] _raw_spin_lock_irqsave+0xd1/0x120 [ 66.859849][ T3561] ? try_to_wake_up+0xad/0x12e0 [ 66.864715][ T3561] ? _raw_spin_lock+0x40/0x40 [ 66.869416][ T3561] ? bpf_trace_run4+0x16a/0x470 [ 66.874282][ T3561] try_to_wake_up+0xad/0x12e0 [ 66.878970][ T3561] ? bpf_trace_run4+0x16a/0x470 [ 66.883823][ T3561] ? cpu_curr_snapshot+0xd0/0xd0 [ 66.888773][ T3561] rcu_read_unlock_special+0x3d2/0x540 [ 66.894236][ T3561] ? __rcu_read_unlock+0x100/0x100 [ 66.899352][ T3561] ? audit_tree_destroy_watch+0x20/0x20 [ 66.904904][ T3561] __rcu_read_unlock+0x92/0x100 [ 66.909779][ T3561] put_memcg_path_buf+0xde/0x110 [ 66.914745][ T3561] __mmap_lock_do_trace_acquire_returned+0x1f7/0x670 [ 66.921556][ T3561] ? __mmap_lock_do_trace_acquire_returned+0x84/0x670 [ 66.928475][ T3561] lock_mm_and_find_vma+0x219/0x2e0 [ 66.933690][ T3561] exc_page_fault+0x169/0x660 [ 66.938412][ T3561] asm_exc_page_fault+0x22/0x30 [ 66.943288][ T3561] RIP: 0033:0x7f68ca1ea3df [ 66.947712][ T3561] Code: 00 00 00 0f 1f 84 00 00 00 00 00 c5 f9 6e c6 89 f8 25 ff 0f 00 00 c4 e2 7d 78 c0 c5 f1 ef c9 3d e0 0f 00 00 0f 87 91 01 00 00 fe 6f 17 c5 fd 74 da c5 f5 74 d2 c5 ed eb db c5 fd d7 c3 85 c0 [ 66.967414][ T3561] RSP: 002b:00007ffd2fb9c998 EFLAGS: 00010283 [ 66.973515][ T3561] RAX: 000000000000001d RBX: 00007ffd2fb9cf00 RCX: 0000000000000000 [ 66.981519][ T3561] RDX: 00007ffd2fb9d088 RSI: 0000000000000025 RDI: 00007f68ca24001d [ 66.989501][ T3561] RBP: 00000000fbad8001 R08: 0000000000000000 R09: 0000000000000000 executing program executing program executing program [ 66.997583][ T3561] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f68ca24001d [ 67.005565][ T3561] R13: 00007ffd2fb9d088 R14: 0000000000000000 R15: 00007ffd2fb9cf00 [ 67.013570][ T3561] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program