Warning: Permanently added '10.128.1.63' (ED25519) to the list of known hosts. 2025/08/29 09:13:32 parsed 1 programs [ 52.719885][ T3352] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 54.610997][ T3375] veth0_vlan: entered promiscuous mode 2025/08/29 09:13:35 executed programs: 0 [ 55.143873][ T2035] veth0_vlan: left promiscuous mode [ 58.366939][ T3676] veth0_vlan: entered promiscuous mode [ 58.420834][ T3671] veth0_vlan: entered promiscuous mode [ 58.457545][ T3673] veth0_vlan: entered promiscuous mode [ 58.576678][ T3677] veth0_vlan: entered promiscuous mode 2025/08/29 09:13:40 executed programs: 45 [ 60.014953][ T2035] [ 60.017294][ T2035] ============================================ [ 60.023423][ T2035] WARNING: possible recursive locking detected [ 60.029555][ T2035] syzkaller #0 Not tainted [ 60.033932][ T2035] -------------------------------------------- [ 60.040053][ T2035] kworker/u4:8/2035 is trying to acquire lock: [ 60.046191][ T2035] ffffc900014f90d8 (&rb->spinlock){-.-.}-{2:2}, at: __bpf_ringbuf_reserve+0x92/0x1d0 [ 60.055725][ T2035] [ 60.055725][ T2035] but task is already holding lock: [ 60.063056][ T2035] ffffc90007c050d8 (&rb->spinlock){-.-.}-{2:2}, at: __bpf_ringbuf_reserve+0x92/0x1d0 [ 60.072735][ T2035] [ 60.072735][ T2035] other info that might help us debug this: [ 60.080757][ T2035] Possible unsafe locking scenario: [ 60.080757][ T2035] [ 60.088179][ T2035] CPU0 [ 60.091443][ T2035] ---- [ 60.094700][ T2035] lock(&rb->spinlock); [ 60.098925][ T2035] lock(&rb->spinlock); [ 60.103137][ T2035] [ 60.103137][ T2035] *** DEADLOCK *** [ 60.103137][ T2035] [ 60.111247][ T2035] May be due to missing lock nesting notation [ 60.111247][ T2035] [ 60.119532][ T2035] 8 locks held by kworker/u4:8/2035: [ 60.124779][ T2035] #0: ffff88810006ab38 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x26c/0x590 [ 60.136286][ T2035] #1: ffffc90008833e58 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x26c/0x590 [ 60.148833][ T2035] #2: ffffffff83096718 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_disable+0xd/0x60 [ 60.158529][ T2035] #3: ffffffff831a0b70 (jump_label_mutex){+.+.}-{3:3}, at: static_key_disable+0x27/0x60 [ 60.168304][ T2035] #4: ffffffff8309c518 (text_mutex){+.+.}-{3:3}, at: arch_jump_label_transform_queue+0x22/0x60 [ 60.178685][ T2035] #5: ffffffff83185d48 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x54/0x1a0 [ 60.187950][ T2035] #6: ffffc90007c050d8 (&rb->spinlock){-.-.}-{2:2}, at: __bpf_ringbuf_reserve+0x92/0x1d0 [ 60.197826][ T2035] #7: ffffffff83185d48 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x54/0x1a0 [ 60.207104][ T2035] [ 60.207104][ T2035] stack backtrace: [ 60.213084][ T2035] CPU: 0 PID: 2035 Comm: kworker/u4:8 Not tainted syzkaller #0 [ 60.220590][ T2035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 60.230622][ T2035] Workqueue: events_unbound toggle_allocation_gate [ 60.237091][ T2035] Call Trace: [ 60.240430][ T2035] [ 60.243348][ T2035] dump_stack_lvl+0x83/0xe0 [ 60.247815][ T2035] print_deadlock_bug+0x2ac/0x2f0 [ 60.252814][ T2035] __lock_acquire+0x1146/0x22c0 [ 60.258324][ T2035] ? __lock_acquire+0x4be/0x22c0 [ 60.263227][ T2035] ? __bpf_ringbuf_reserve+0x92/0x1d0 [ 60.268568][ T2035] lock_acquire+0xe9/0x260 [ 60.272945][ T2035] ? __bpf_ringbuf_reserve+0x92/0x1d0 [ 60.278367][ T2035] _raw_spin_lock_irqsave+0x60/0x90 [ 60.283570][ T2035] ? __bpf_ringbuf_reserve+0x92/0x1d0 [ 60.288909][ T2035] __bpf_ringbuf_reserve+0x92/0x1d0 [ 60.294073][ T2035] ? bpf_trace_run2+0x54/0x1a0 [ 60.298797][ T2035] bpf_ringbuf_reserve+0x15/0x20 [ 60.303697][ T2035] ___bpf_prog_run+0xe04/0x24e0 [ 60.308510][ T2035] ? bpf_trace_run2+0x54/0x1a0 [ 60.313235][ T2035] __bpf_prog_run32+0xbb/0xe0 [ 60.317873][ T2035] bpf_trace_run2+0xc7/0x1a0 [ 60.322435][ T2035] ? __bpf_ringbuf_reserve+0x92/0x1d0 [ 60.327768][ T2035] __traceiter_contention_end+0x28/0x40 [ 60.333282][ T2035] __pv_queued_spin_lock_slowpath+0x446/0x460 [ 60.339322][ T2035] ? _raw_spin_lock_irqsave+0x3a/0x90 [ 60.344657][ T2035] do_raw_spin_lock+0xcf/0xe0 [ 60.349297][ T2035] _raw_spin_lock_irqsave+0x6c/0x90 [ 60.354465][ T2035] __bpf_ringbuf_reserve+0x92/0x1d0 [ 60.359624][ T2035] ? bpf_trace_run2+0x54/0x1a0 [ 60.364353][ T2035] bpf_ringbuf_reserve+0x15/0x20 [ 60.369260][ T2035] ___bpf_prog_run+0xe04/0x24e0 [ 60.374073][ T2035] ? bpf_trace_run2+0x54/0x1a0 [ 60.378797][ T2035] __bpf_prog_run32+0xbb/0xe0 [ 60.383447][ T2035] bpf_trace_run2+0xc7/0x1a0 [ 60.388021][ T2035] __traceiter_contention_end+0x28/0x40 [ 60.393530][ T2035] ? arch_jump_label_transform_queue+0x22/0x60 [ 60.399644][ T2035] __mutex_lock+0x886/0xa00 [ 60.404110][ T2035] ? arch_jump_label_transform_queue+0x4a/0x60 [ 60.410224][ T2035] arch_jump_label_transform_queue+0x22/0x60 [ 60.416253][ T2035] __jump_label_update+0x85/0xd0 [ 60.421171][ T2035] ? process_scheduled_works+0x26c/0x590 [ 60.426765][ T2035] static_key_disable+0x3f/0x60 [ 60.431576][ T2035] toggle_allocation_gate+0xe4/0x130 [ 60.436833][ T2035] ? wake_bit_function+0x70/0x70 [ 60.441783][ T2035] process_scheduled_works+0x2c8/0x590 [ 60.447212][ T2035] worker_thread+0x23e/0x300 [ 60.451863][ T2035] ? pr_cont_work+0x1b0/0x1b0 [ 60.456503][ T2035] kthread+0xe3/0x100 [ 60.460472][ T2035] ? kthread_blkcg+0x30/0x30 [ 60.465038][ T2035] ret_from_fork+0x2f/0x40 [ 60.469425][ T2035] ? kthread_blkcg+0x30/0x30 [ 60.473984][ T2035] ret_from_fork_asm+0x11/0x20 [ 60.478722][ T2035] 2025/08/29 09:13:45 executed programs: 375 2025/08/29 09:13:50 executed programs: 728