Warning: Permanently added '10.128.0.29' (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 [ 87.766770][ T4263] [ 87.769535][ T4263] ============================================ [ 87.776950][ T4263] WARNING: possible recursive locking detected [ 87.784044][ T4263] 6.1.137-syzkaller #0 Not tainted [ 87.789545][ T4263] -------------------------------------------- [ 87.796942][ T4263] syz-executor209/4263 is trying to acquire lock: [ 87.803739][ T4263] ffff888079d17a38 (&trie->lock){....}-{2:2}, at: trie_delete_elem+0x90/0x690 [ 87.813073][ T4263] [ 87.813073][ T4263] but task is already holding lock: [ 87.820536][ T4263] ffff888079d15238 (&trie->lock){....}-{2:2}, at: trie_update_elem+0xc4/0xe90 [ 87.830457][ T4263] [ 87.830457][ T4263] other info that might help us debug this: [ 87.838871][ T4263] Possible unsafe locking scenario: [ 87.838871][ T4263] [ 87.846987][ T4263] CPU0 [ 87.850543][ T4263] ---- [ 87.853922][ T4263] lock(&trie->lock); [ 87.858529][ T4263] lock(&trie->lock); [ 87.863166][ T4263] [ 87.863166][ T4263] *** DEADLOCK *** [ 87.863166][ T4263] [ 87.872189][ T4263] May be due to missing lock nesting notation [ 87.872189][ T4263] [ 87.882662][ T4263] 3 locks held by syz-executor209/4263: [ 87.888314][ T4263] #0: ffffffff8c92a960 (rcu_read_lock){....}-{1:2}, at: bpf_map_update_value+0x379/0x670 [ 87.899036][ T4263] #1: ffff888079d15238 (&trie->lock){....}-{2:2}, at: trie_update_elem+0xc4/0xe90 [ 87.908474][ T4263] #2: ffffffff8c92a960 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0xf9/0x420 [ 87.917932][ T4263] [ 87.917932][ T4263] stack backtrace: [ 87.924469][ T4263] CPU: 0 PID: 4263 Comm: syz-executor209 Not tainted 6.1.137-syzkaller #0 [ 87.933730][ T4263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 87.944787][ T4263] Call Trace: [ 87.948536][ T4263] [ 87.952016][ T4263] dump_stack_lvl+0x168/0x22e [ 87.957820][ T4263] ? show_regs_print_info+0x12/0x12 [ 87.966434][ T4263] ? load_image+0x3b0/0x3b0 [ 87.971567][ T4263] __lock_acquire+0x122f/0x7c50 [ 87.981401][ T4263] ? mark_lock+0x94/0x320 [ 87.987606][ T4263] ? mark_lock+0x94/0x320 [ 87.992842][ T4263] ? verify_lock_unused+0x140/0x140 [ 87.998846][ T4263] ? __lock_acquire+0x12e5/0x7c50 [ 88.004904][ T4263] ? do_syscall_64+0x4c/0xa0 [ 88.010798][ T4263] ? do_raw_spin_unlock+0x11d/0x230 [ 88.016347][ T4263] lock_acquire+0x1b4/0x490 [ 88.021241][ T4263] ? trie_delete_elem+0x90/0x690 [ 88.026827][ T4263] ? read_lock_is_recursive+0x10/0x10 [ 88.034042][ T4263] _raw_spin_lock_irqsave+0xa4/0xf0 [ 88.040194][ T4263] ? trie_delete_elem+0x90/0x690 [ 88.050758][ T4263] ? _raw_spin_lock+0x40/0x40 [ 88.055853][ T4263] trie_delete_elem+0x90/0x690 [ 88.061637][ T4263] ? __cant_sleep+0x210/0x210 [ 88.067785][ T4263] ? page_ext_get+0x1de/0x2a0 [ 88.073444][ T4263] bpf_prog_d46ba5bef82912c0+0x3d/0x41 [ 88.079307][ T4263] bpf_trace_run4+0x1f5/0x420 [ 88.084607][ T4263] ? bpf_trace_run4+0xf9/0x420 [ 88.089659][ T4263] ? bpf_trace_run3+0x400/0x400 [ 88.094812][ T4263] __bpf_trace_mm_page_alloc+0xbf/0xf0 [ 88.100536][ T4263] __traceiter_mm_page_alloc+0x35/0x50 [ 88.106575][ T4263] __alloc_pages+0x49c/0x4e0 [ 88.113066][ T4263] ? zone_statistics+0x170/0x170 [ 88.118559][ T4263] ? ___slab_alloc+0x20e/0x1220 [ 88.124090][ T4263] ? alloc_pages+0x4d8/0x740 [ 88.128970][ T4263] alloc_slab_page+0x5d/0x160 [ 88.134455][ T4263] ? mempolicy_slab_node+0x117/0x390 [ 88.140596][ T4263] new_slab+0x87/0x2c0 [ 88.144927][ T4263] ___slab_alloc+0xbc6/0x1220 [ 88.150721][ T4263] ? ___slab_alloc+0x20e/0x1220 [ 88.156107][ T4263] ? bpf_map_kmalloc_node+0xb8/0x1a0 [ 88.162472][ T4263] ? bpf_map_kmalloc_node+0xb8/0x1a0 [ 88.169038][ T4263] __kmem_cache_alloc_node+0x1a0/0x260 [ 88.175704][ T4263] ? bpf_map_kmalloc_node+0xb8/0x1a0 [ 88.181813][ T4263] __kmalloc_node+0xa0/0x240 [ 88.187467][ T4263] bpf_map_kmalloc_node+0xb8/0x1a0 [ 88.193961][ T4263] trie_update_elem+0xa88/0xe90 [ 88.200075][ T4263] bpf_map_update_value+0x5a0/0x670 [ 88.205839][ T4263] generic_map_update_batch+0x569/0x850 [ 88.211803][ T4263] ? rcu_read_unlock+0xa0/0xa0 [ 88.216987][ T4263] ? __fdget+0x146/0x200 [ 88.222185][ T4263] ? rcu_read_unlock+0xa0/0xa0 [ 88.227587][ T4263] bpf_map_do_batch+0x466/0x600 [ 88.232571][ T4263] __sys_bpf+0x65f/0x6d0 [ 88.237610][ T4263] ? bpf_link_show_fdinfo+0x310/0x310 [ 88.243565][ T4263] ? lock_chain_count+0x20/0x20 [ 88.249384][ T4263] __x64_sys_bpf+0x78/0x90 [ 88.254914][ T4263] do_syscall_64+0x4c/0xa0 [ 88.260235][ T4263] ? clear_bhb_loop+0x45/0xa0 [ 88.265539][ T4263] ? clear_bhb_loop+0x45/0xa0 [ 88.270768][ T4263] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 88.277924][ T4263] RIP: 0033:0x7f1d34dec0e9 [ 88.283657][ T4263] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 [ 88.304601][ T4263] RSP: 002b:00007ffcc86123a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 executing program executing program [ 88.313677][ T4263] RAX: ffffffffffffffda RBX: 00002000000000c0 RCX: 00007f1d34dec0e9 [ 88.322432][ T4263] RDX: 0000000000000038 RSI: 0000200000000240 RDI: 000000000000001a [ 88.330944][ T4263] RBP: 0000200000000440 R08: 0000000000000000 R09: 00000000000000a0 [ 88.340099][ T4263] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 88.349963][ T4263] R13: 0000200000000240 R14: 00002000000000c8 R15: 0000200000000240 [ 88.360557][ T4263] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 92.019725][ T14] cfg80211: failed to load regulatory.db executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program