Warning: Permanently added '10.128.10.19' (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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 127.827375][ T127] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2639 jiffies s: 477 root: 0x1/. [ 127.839476][ T127] rcu: blocking rcu_node structures (internal RCU debug): [ 127.846708][ T127] Sending NMI from CPU 1 to CPUs 0: [ 127.851959][ C0] NMI backtrace for cpu 0 [ 127.851983][ C0] CPU: 0 PID: 4633 Comm: syz-executor996 Not tainted 6.1.148-syzkaller #0 [ 127.851997][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 127.852011][ C0] RIP: 0010:lock_acquire+0x16d/0x490 [ 127.852047][ C0] Code: 19 02 00 00 41 83 3e 00 0f 85 02 01 00 00 48 c7 84 24 a0 00 00 00 00 00 00 00 9c 8f 84 24 a0 00 00 00 4c 8b b4 24 a0 00 00 00 48 c7 c7 00 11 8c 8a e8 86 85 b3 08 65 ff 05 4f 97 9f 7e 45 31 [ 127.852063][ C0] RSP: 0018:ffffc90003f06340 EFLAGS: 00000246 [ 127.852076][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 7b69b815a906a400 [ 127.852085][ C0] RDX: 0000000000000000 RSI: ffffffff8adef680 RDI: ffffffff8adef640 [ 127.852095][ C0] RBP: ffffc90003f06450 R08: dffffc0000000000 R09: fffffbfff1c3ea96 [ 127.852105][ C0] R10: fffffbfff1c3ea96 R11: 1ffffffff1c3ea95 R12: 0000000000000000 [ 127.852115][ C0] R13: 1ffff920007e0c74 R14: 0000000000000246 R15: dffffc0000000000 [ 127.852124][ C0] FS: 00007f3fb13c16c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 [ 127.852137][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 127.852146][ C0] CR2: 00007f3fb13c1d58 CR3: 000000002f635000 CR4: 00000000003506f0 [ 127.852159][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 127.852167][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 127.852175][ C0] Call Trace: [ 127.852182][ C0] [ 127.852191][ C0] ? __local_bh_enable_ip+0x12a/0x1b0 [ 127.852213][ C0] ? tipc_node_xmit_skb+0x140/0x140 [ 127.852234][ C0] ? read_lock_is_recursive+0x10/0x10 [ 127.852251][ C0] ? __local_bh_enable_ip+0x12a/0x1b0 [ 127.852270][ C0] ? _local_bh_enable+0xa0/0xa0 [ 127.852289][ C0] ? tipc_sk_rcv+0x2c40/0x2c40 [ 127.852305][ C0] ? __raw_callee_save___pv_queued_spin_unlock+0xc/0x12 [ 127.852328][ C0] ? tipc_sk_rcv+0x24b/0x2c40 [ 127.852344][ C0] _raw_spin_lock_bh+0x32/0x50 [ 127.852362][ C0] ? tipc_sk_rcv+0x24b/0x2c40 [ 127.852378][ C0] tipc_sk_rcv+0x24b/0x2c40 [ 127.852396][ C0] ? verify_lock_unused+0x140/0x140 [ 127.852414][ C0] ? mark_lock+0x94/0x320 [ 127.852432][ C0] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 127.852450][ C0] ? lock_chain_count+0x20/0x20 [ 127.852468][ C0] ? _raw_spin_unlock_irqrestore+0x82/0x100 [ 127.852490][ C0] ? __skb_queue_purge+0x170/0x170 [ 127.852506][ C0] ? memset+0x1e/0x40 [ 127.852525][ C0] ? lockdep_init_map_type+0x9d/0x880 [ 127.852548][ C0] ? net_generic+0x1e/0x240 [ 127.852563][ C0] ? __raw_spin_lock_init+0x41/0x100 [ 127.852583][ C0] tipc_node_xmit+0x1e0/0xea0 [ 127.852597][ C0] ? tipc_sk_backlog_rcv+0x19e/0x230 [ 127.852615][ C0] ? release_sock+0x5b/0x1b0 [ 127.852633][ C0] ? __sys_setsockopt+0x2f6/0x3d0 [ 127.852647][ C0] ? __x64_sys_setsockopt+0xb1/0xc0 [ 127.852662][ C0] ? do_syscall_64+0x4c/0xa0 [ 127.852675][ C0] ? entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 127.852696][ C0] ? tipc_node_get_linkname+0x190/0x190 [ 127.852714][ C0] ? mark_lock+0x94/0x320 [ 127.852732][ C0] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 127.852753][ C0] ? kasan_quarantine_put+0x39/0x220 [ 127.852781][ C0] ? mark_lock+0x94/0x320 [ 127.852799][ C0] tipc_node_distr_xmit+0x29a/0x3a0 [ 127.852819][ C0] ? tipc_node_xmit_skb+0x140/0x140 [ 127.852833][ C0] ? __local_bh_enable_ip+0x12a/0x1b0 [ 127.852861][ C0] tipc_sk_rcv+0x26f6/0x2c40 [ 127.852880][ C0] ? verify_lock_unused+0x140/0x140 [ 127.852909][ C0] ? __skb_queue_purge+0x170/0x170 [ 127.852925][ C0] ? memset+0x1e/0x40 [ 127.852943][ C0] ? lockdep_init_map_type+0x9d/0x880 [ 127.852965][ C0] ? net_generic+0x1e/0x240 [ 127.852980][ C0] ? __raw_spin_lock_init+0x41/0x100 [ 127.853001][ C0] tipc_node_xmit+0x1e0/0xea0 [ 127.853019][ C0] ? mark_lock+0x94/0x320 [ 127.853035][ C0] ? tipc_node_get_linkname+0x190/0x190 [ 127.853063][ C0] tipc_sk_push_backlog+0x4ef/0x8f0 [ 127.853084][ C0] tipc_sk_proto_rcv+0x8ff/0x1760 [ 127.853108][ C0] ? trace_tipc_sk_dump+0x280/0x280 [ 127.853126][ C0] ? __lock_acquire+0x13c0/0x7c50 [ 127.853143][ C0] ? tipc_sk_filtering+0x138/0x510 [ 127.853162][ C0] tipc_sk_filter_rcv+0x2f04/0x31b0 [ 127.853181][ C0] ? preempt_count_add+0x8d/0x190 [ 127.853199][ C0] ? verify_lock_unused+0x140/0x140 [ 127.853221][ C0] ? tipc_sk_lookup+0xb5/0x910 [ 127.853238][ C0] ? mark_lock+0x94/0x320 [ 127.853256][ C0] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 127.853275][ C0] ? tipc_sk_publish+0x440/0x440 [ 127.853292][ C0] ? tipc_sk_rcv+0x77f/0x2c40 [ 127.853308][ C0] ? __local_bh_enable_ip+0x12a/0x1b0 [ 127.853330][ C0] ? tipc_msg_reverse+0x6ab/0x8e0 [ 127.853354][ C0] tipc_sk_rcv+0x8af/0x2c40 [ 127.853372][ C0] ? verify_lock_unused+0x140/0x140 [ 127.853401][ C0] ? __skb_queue_purge+0x170/0x170 [ 127.853417][ C0] ? memset+0x1e/0x40 [ 127.853435][ C0] ? lockdep_init_map_type+0x9d/0x880 [ 127.853458][ C0] ? net_generic+0x1e/0x240 [ 127.853472][ C0] ? __raw_spin_lock_init+0x41/0x100 [ 127.853492][ C0] tipc_node_xmit+0x1e0/0xea0 [ 127.853511][ C0] ? tipc_node_get_linkname+0x190/0x190 [ 127.853539][ C0] tipc_node_distr_xmit+0x29a/0x3a0 [ 127.853558][ C0] ? tipc_node_xmit_skb+0x140/0x140 [ 127.853573][ C0] ? mark_lock+0x94/0x320 [ 127.853593][ C0] ? mark_lock+0x94/0x320 [ 127.853612][ C0] tipc_sk_backlog_rcv+0x19e/0x230 [ 127.853631][ C0] ? tipc_sk_timeout+0x9f0/0x9f0 [ 127.853650][ C0] ? __local_bh_enable_ip+0x12a/0x1b0 [ 127.853669][ C0] ? _local_bh_enable+0xa0/0xa0 [ 127.853688][ C0] ? do_raw_spin_unlock+0x11d/0x230 [ 127.853709][ C0] __release_sock+0x1b9/0x420 [ 127.853726][ C0] release_sock+0x5b/0x1b0 [ 127.853745][ C0] sk_setsockopt+0x152b/0x2720 [ 127.853766][ C0] ? sockopt_capable+0x60/0x60 [ 127.853789][ C0] ? __lock_acquire+0x7c50/0x7c50 [ 127.853804][ C0] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 127.853823][ C0] ? aa_sk_perm+0x7e5/0x920 [ 127.853840][ C0] ? aa_af_perm+0x2b0/0x2b0 [ 127.853853][ C0] ? __fget_files+0x44a/0x4d0 [ 127.853872][ C0] ? aa_sock_opt_perm+0x74/0x100 [ 127.853892][ C0] ? bpf_lsm_socket_setsockopt+0x5/0x10 [ 127.853905][ C0] ? security_socket_setsockopt+0x7a/0xa0 [ 127.853925][ C0] __sys_setsockopt+0x2f6/0x3d0 [ 127.853942][ C0] __x64_sys_setsockopt+0xb1/0xc0 [ 127.853959][ C0] do_syscall_64+0x4c/0xa0 [ 127.853972][ C0] ? clear_bhb_loop+0x60/0xb0 [ 127.853984][ C0] ? clear_bhb_loop+0x60/0xb0 [ 127.853997][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 127.854017][ C0] RIP: 0033:0x7f3fb14213e9 [ 127.854034][ 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 [ 127.854045][ C0] RSP: 002b:00007f3fb13c1218 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 127.854058][ C0] RAX: ffffffffffffffda RBX: 00007f3fb13c16c0 RCX: 00007f3fb14213e9 [ 127.854068][ C0] RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000003 [ 127.854076][ C0] RBP: 00007f3fb14ab338 R08: 0000000000000004 R09: 0000000000000000 [ 127.854085][ C0] R10: 0000200000000540 R11: 0000000000000246 R12: 00002000000002c0 [ 127.854094][ C0] R13: 00007f3fb14ab330 R14: 00007f3fb14ab33c R15: 0000200000000004 [ 127.854110][ C0] [ 127.854116][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.156 msecs