Warning: Permanently added '10.128.0.31' (ED25519) to the list of known hosts. executing program executing program [ 193.692770][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 193.699499][ C0] rcu: 0-....: (1 GPs behind) idle=ba4c/1/0x4000000000000000 softirq=10398/10399 fqs=5247 [ 193.710166][ C0] rcu: hardirqs softirqs csw/system [ 193.717201][ C0] rcu: number: 5261 0 0 [ 193.723724][ C0] rcu: cputime: 200 0 52253 ==> 52510(ms) [ 193.731642][ C0] rcu: (t=10502 jiffies g=9785 q=209 ncpus=2) [ 193.737888][ C0] CPU: 0 PID: 5792 Comm: syz-executor657 Not tainted syzkaller #0 [ 193.745710][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 193.755951][ C0] RIP: 0010:lock_acquire+0x1f2/0x410 [ 193.761311][ C0] Code: 00 9c 8f 84 24 80 00 00 00 f6 84 24 81 00 00 00 02 0f 85 f5 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 3c 00 00 00 00 66 43 c7 44 3c 09 00 00 43 c6 44 3c 0b 00 [ 193.780964][ C0] RSP: 0018:ffffc900044fe360 EFLAGS: 00000206 [ 193.787052][ C0] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 705cae5b7129e500 [ 193.795072][ C0] RDX: 0000000000000000 RSI: ffffffff8aaacee0 RDI: ffffffff8afc6a80 [ 193.803169][ C0] RBP: ffffc900044fe478 R08: dffffc0000000000 R09: 1ffffffff21b50a0 [ 193.811181][ C0] R10: dffffc0000000000 R11: fffffbfff21b50a1 R12: 1ffff9200089fc78 [ 193.819273][ C0] R13: ffffffff8cd2ff20 R14: 0000000000000246 R15: dffffc0000000000 [ 193.827260][ C0] FS: 00007f23785636c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 [ 193.836383][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 193.843164][ C0] CR2: 00007f2378542d58 CR3: 0000000021a54000 CR4: 00000000003506f0 [ 193.851243][ C0] Call Trace: [ 193.854527][ C0] [ 193.857480][ C0] ? read_lock_is_recursive+0x20/0x20 [ 193.862879][ C0] ? mark_lock+0x94/0x320 [ 193.867252][ C0] ? net_generic+0x1e/0x240 [ 193.871786][ C0] net_generic+0x3a/0x240 [ 193.876128][ C0] ? net_generic+0x1e/0x240 [ 193.880921][ C0] tipc_sk_lookup+0xaa/0x910 [ 193.885532][ C0] ? __local_bh_enable_ip+0x12e/0x1c0 [ 193.890910][ C0] ? lockdep_hardirqs_on+0x98/0x150 [ 193.896117][ C0] ? __local_bh_enable_ip+0x12e/0x1c0 [ 193.901499][ C0] ? tipc_sk_rcv+0x2b80/0x2b80 [ 193.906459][ C0] tipc_sk_rcv+0x3fa/0x2b80 [ 193.911284][ C0] ? verify_lock_unused+0x140/0x140 [ 193.916593][ C0] ? mark_lock+0x94/0x320 [ 193.920967][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x760 [ 193.927249][ C0] ? stack_trace_save+0xe0/0xe0 [ 193.932319][ C0] ? lockdep_hardirqs_on+0x98/0x150 [ 193.937816][ C0] ? __skb_queue_purge+0x170/0x170 [ 193.943161][ C0] ? __asan_memset+0x22/0x40 [ 193.948104][ C0] ? lockdep_init_map_type+0xa1/0x880 [ 193.953948][ C0] ? kasan_set_track+0x5f/0x70 [ 193.959111][ C0] ? kasan_set_track+0x4e/0x70 [ 193.964089][ C0] ? net_generic+0x1e/0x240 [ 193.968647][ C0] ? __raw_spin_lock_init+0x45/0x100 [ 193.973993][ C0] tipc_node_xmit+0x1e4/0xee0 [ 193.978703][ C0] ? do_syscall_64+0x61/0xb0 [ 193.983340][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 193.988990][ C0] ? mark_lock+0x94/0x320 [ 193.993360][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x760 [ 193.999450][ C0] ? lock_chain_count+0x20/0x20 [ 194.004319][ C0] ? lockdep_hardirqs_on+0x98/0x150 [ 194.009540][ C0] tipc_node_xmit_skb+0xf5/0x140 [ 194.014610][ C0] ? __skb_queue_purge+0x170/0x170 [ 194.019782][ C0] ? kmem_cache_free+0xf8/0x280 [ 194.024686][ C0] ? trace_tipc_sk_rej_msg+0x98/0x200 [ 194.030087][ C0] tipc_sk_rcv+0x29a9/0x2b80 [ 194.034697][ C0] ? __lock_acquire+0x1260/0x7c80 [ 194.039751][ C0] ? verify_lock_unused+0x140/0x140 [ 194.044993][ C0] ? __skb_queue_purge+0x170/0x170 [ 194.050145][ C0] ? __asan_memset+0x22/0x40 [ 194.054758][ C0] ? lockdep_init_map_type+0xa1/0x880 [ 194.060252][ C0] ? net_generic+0x1e/0x240 [ 194.064770][ C0] ? __raw_spin_lock_init+0x45/0x100 [ 194.070078][ C0] tipc_node_xmit+0x1e4/0xee0 [ 194.074780][ C0] ? __lock_acquire+0x1260/0x7c80 [ 194.079836][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 194.085400][ C0] ? mark_lock+0x94/0x320 [ 194.089749][ C0] tipc_sk_filter_rcv+0x1280/0x3030 [ 194.094994][ C0] ? tipc_sk_publish+0x440/0x440 [ 194.099953][ C0] ? __local_bh_enable_ip+0x12e/0x1c0 [ 194.105431][ C0] tipc_sk_rcv+0x8a6/0x2b80 [ 194.109982][ C0] ? __skb_queue_purge+0x170/0x170 [ 194.115209][ C0] ? __asan_memset+0x22/0x40 [ 194.119954][ C0] ? lockdep_init_map_type+0xa1/0x880 [ 194.125458][ C0] ? kmem_cache_free+0xf8/0x280 [ 194.130335][ C0] ? net_generic+0x1e/0x240 [ 194.134851][ C0] ? __raw_spin_lock_init+0x45/0x100 [ 194.140147][ C0] tipc_node_xmit+0x1e4/0xee0 [ 194.144868][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 194.150449][ C0] tipc_node_distr_xmit+0x29e/0x3b0 [ 194.155762][ C0] ? tipc_node_xmit_skb+0x140/0x140 [ 194.161093][ C0] ? mark_lock+0x94/0x320 [ 194.165528][ C0] tipc_sk_backlog_rcv+0x1a2/0x230 [ 194.170704][ C0] ? tipc_sk_timeout+0x9f0/0x9f0 [ 194.175693][ C0] ? __local_bh_enable_ip+0x12e/0x1c0 [ 194.181197][ C0] ? _local_bh_enable+0xa0/0xa0 [ 194.186070][ C0] ? do_raw_spin_unlock+0x121/0x230 [ 194.191286][ C0] __release_sock+0x1bd/0x430 [ 194.196081][ C0] release_sock+0x5f/0x1c0 [ 194.200507][ C0] tipc_release+0x16e8/0x2140 [ 194.205382][ C0] ? tipc_release+0x814/0x2140 [ 194.210201][ C0] ? tipc_sock_destruct+0x180/0x180 [ 194.215632][ C0] ? down_write+0x162/0x1f0 [ 194.220398][ C0] ? down_read_killable+0x340/0x340 [ 194.225650][ C0] sock_close+0xbd/0x230 [ 194.229948][ C0] ? sock_mmap+0xa0/0xa0 [ 194.234216][ C0] __fput+0x234/0x970 [ 194.238409][ C0] task_work_run+0x1ce/0x250 [ 194.243023][ C0] ? task_work_cancel+0x240/0x240 [ 194.248150][ C0] ? exit_to_user_mode_loop+0x3b/0x110 [ 194.253650][ C0] exit_to_user_mode_loop+0xe6/0x110 [ 194.259061][ C0] exit_to_user_mode_prepare+0xf6/0x180 [ 194.264653][ C0] syscall_exit_to_user_mode+0x1a/0x50 [ 194.270317][ C0] do_syscall_64+0x61/0xb0 [ 194.274791][ C0] ? clear_bhb_loop+0x40/0x90 [ 194.279536][ C0] ? clear_bhb_loop+0x40/0x90 [ 194.284347][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 194.290277][ C0] RIP: 0033:0x7f23785a2969 [ 194.294735][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 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 b0 ff ff ff f7 d8 64 89 01 48 [ 194.316852][ C0] RSP: 002b:00007f2378563218 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 194.325353][ C0] RAX: 00000000000203a0 RBX: 00007f237862e328 RCX: 00007f23785a2969 [ 194.333377][ C0] RDX: 0000000000000000 RSI: 00002000000003c0 RDI: 0000000000000003 [ 194.341479][ C0] RBP: 00007f237862e320 R08: 0000000000000000 R09: 0000000000000000 [ 194.349495][ C0] R10: 00002000000003c0 R11: 0000000000000246 R12: 00007f23785fb518 [ 194.357482][ C0] R13: 00002000000075c0 R14: 0000200000000d10 R15: 0000200000000c40 [ 194.365487][ C0]