Warning: Permanently added '10.128.0.155' (ED25519) to the list of known hosts. 2025/11/22 04:13:15 parsed 1 programs [ 57.694998][ T3365] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 60.002914][ T3439] veth0_vlan: entered promiscuous mode 2025/11/22 04:13:18 executed programs: 0 [ 60.530978][ T13] veth0_vlan: left promiscuous mode [ 64.516814][ T3699] veth0_vlan: entered promiscuous mode [ 64.583961][ T3696] veth0_vlan: entered promiscuous mode [ 64.593356][ T3691] veth0_vlan: entered promiscuous mode [ 64.645219][ T3698] veth0_vlan: entered promiscuous mode 2025/11/22 04:13:23 executed programs: 8 [ 66.875890][ T4771] [ 66.878247][ T4771] ============================================ [ 66.884562][ T4771] WARNING: possible recursive locking detected [ 66.890971][ T4771] syzkaller #0 Not tainted [ 66.895604][ T4771] -------------------------------------------- [ 66.902037][ T4771] syz.0.89/4771 is trying to acquire lock: [ 66.908525][ T4771] ffff888123705218 (&qs->lock){-.-.}-{2:2}, at: __queue_map_get+0x68/0x160 [ 66.917537][ T4771] [ 66.917537][ T4771] but task is already holding lock: [ 66.925059][ T4771] ffff888121751218 (&qs->lock){-.-.}-{2:2}, at: __queue_map_get+0x68/0x160 [ 66.934326][ T4771] [ 66.934326][ T4771] other info that might help us debug this: [ 66.942582][ T4771] Possible unsafe locking scenario: [ 66.942582][ T4771] [ 66.950109][ T4771] CPU0 [ 66.953814][ T4771] ---- [ 66.957171][ T4771] lock(&qs->lock); [ 66.961394][ T4771] lock(&qs->lock); [ 66.965559][ T4771] [ 66.965559][ T4771] *** DEADLOCK *** [ 66.965559][ T4771] [ 66.974209][ T4771] May be due to missing lock nesting notation [ 66.974209][ T4771] [ 66.982507][ T4771] 4 locks held by syz.0.89/4771: [ 66.987615][ T4771] #0: ffff8881237b4ba8 (&child->perf_event_mutex){+.+.}-{3:3}, at: perf_event_exit_task+0x34/0x310 [ 66.998907][ T4771] #1: ffffffff83185d88 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x54/0x1a0 [ 67.008967][ T4771] #2: ffff888121751218 (&qs->lock){-.-.}-{2:2}, at: __queue_map_get+0x68/0x160 [ 67.018255][ T4771] #3: ffffffff83185d88 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x54/0x1a0 [ 67.027935][ T4771] [ 67.027935][ T4771] stack backtrace: [ 67.034071][ T4771] CPU: 1 PID: 4771 Comm: syz.0.89 Not tainted syzkaller #0 [ 67.041771][ T4771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 67.052165][ T4771] Call Trace: [ 67.055567][ T4771] [ 67.058578][ T4771] dump_stack_lvl+0x83/0xe0 [ 67.063430][ T4771] print_deadlock_bug+0x2ac/0x2f0 [ 67.068802][ T4771] __lock_acquire+0x1146/0x22c0 [ 67.074540][ T4771] ? page_ext_get+0x18/0x150 [ 67.079563][ T4771] ? __lock_acquire+0x4be/0x22c0 [ 67.084837][ T4771] ? is_module_text_address+0x5a/0x80 [ 67.090417][ T4771] ? __queue_map_get+0x68/0x160 [ 67.095536][ T4771] lock_acquire+0xe9/0x260 [ 67.100099][ T4771] ? __queue_map_get+0x68/0x160 [ 67.105361][ T4771] ? register_lock_class+0x52/0x270 [ 67.110647][ T4771] _raw_spin_lock_irqsave+0x60/0x90 [ 67.116012][ T4771] ? __queue_map_get+0x68/0x160 [ 67.121031][ T4771] __queue_map_get+0x68/0x160 [ 67.125897][ T4771] ? bpf_trace_run2+0x54/0x1a0 [ 67.130818][ T4771] ___bpf_prog_run+0xe04/0x24e0 [ 67.136084][ T4771] ? bpf_trace_run2+0x54/0x1a0 [ 67.140995][ T4771] __bpf_prog_run32+0xbb/0xe0 [ 67.145919][ T4771] bpf_trace_run2+0xc7/0x1a0 [ 67.151280][ T4771] ? __queue_map_get+0x68/0x160 [ 67.156118][ T4771] __traceiter_contention_end+0x28/0x40 [ 67.161895][ T4771] __pv_queued_spin_lock_slowpath+0x446/0x460 [ 67.168263][ T4771] ? _raw_spin_lock_irqsave+0x3a/0x90 [ 67.173733][ T4771] do_raw_spin_lock+0xcf/0xe0 [ 67.178595][ T4771] _raw_spin_lock_irqsave+0x6c/0x90 [ 67.183957][ T4771] __queue_map_get+0x68/0x160 [ 67.188790][ T4771] ? bpf_trace_run2+0x54/0x1a0 [ 67.193698][ T4771] ___bpf_prog_run+0xe04/0x24e0 [ 67.198678][ T4771] ? bpf_trace_run2+0x54/0x1a0 [ 67.203603][ T4771] __bpf_prog_run32+0xbb/0xe0 [ 67.208432][ T4771] bpf_trace_run2+0xc7/0x1a0 [ 67.213241][ T4771] __traceiter_contention_end+0x28/0x40 [ 67.218776][ T4771] ? perf_event_exit_task+0x34/0x310 [ 67.224121][ T4771] __mutex_lock+0x886/0xa00 [ 67.228871][ T4771] perf_event_exit_task+0x34/0x310 [ 67.234487][ T4771] ? _raw_spin_unlock_irqrestore+0x6a/0xb0 [ 67.240465][ T4771] ? taskstats_exit+0x71/0x390 [ 67.245556][ T4771] do_exit+0x234/0xa00 [ 67.249875][ T4771] ? lockdep_hardirqs_on+0x98/0xf0 [ 67.255076][ T4771] do_group_exit+0x9e/0xa0 [ 67.259569][ T4771] __x64_sys_exit_group+0x12/0x20 [ 67.264856][ T4771] do_syscall_64+0x55/0xb0 [ 67.269522][ T4771] ? clear_bhb_loop+0x40/0x90 [ 67.274370][ T4771] ? clear_bhb_loop+0x40/0x90 [ 67.279203][ T4771] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 67.285492][ T4771] RIP: 0033:0x7ff2ae24eba9 [ 67.290171][ T4771] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 67.310997][ T4771] RSP: 002b:00007ffcd55a24d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 67.319790][ T4771] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff2ae24eba9 [ 67.328273][ T4771] RDX: 00007ff2ae24eba9 RSI: 0000000000000000 RDI: 0000000000000000 [ 67.336327][ T4771] RBP: 00007ffcd55a253c R08: 00000004d55a25cf R09: 00000000000927c0 [ 67.345059][ T4771] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000011 [ 67.353281][ T4771] R13: 00000000000927c0 R14: 00000000000104c6 R15: 00007ffcd55a2590 [ 67.361513][ T4771] 2025/11/22 04:13:28 executed programs: 335 2025/11/22 04:13:33 executed programs: 694