[ 25.903606][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 25.912191][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 25.922225][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 25.930575][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.144642][ T9] device bridge_slave_1 left promiscuous mode [ 28.150897][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.158349][ T9] device bridge_slave_0 left promiscuous mode [ 28.164620][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.172130][ T9] device veth1_macvtap left promiscuous mode [ 28.178180][ T9] device veth0_vlan left promiscuous mode Warning: Permanently added '10.128.1.190' (ED25519) to the list of known hosts. 2026/02/21 06:42:41 parsed 1 programs [ 45.212012][ T24] kauditd_printk_skb: 31 callbacks suppressed [ 45.212022][ T24] audit: type=1400 audit(1771656161.659:105): avc: denied { unlink } for pid=413 comm="syz-executor" name="swap-file" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 45.297877][ T413] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 45.872697][ T430] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.880046][ T430] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.887466][ T430] device bridge_slave_0 entered promiscuous mode [ 45.894346][ T430] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.901356][ T430] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.908910][ T430] device bridge_slave_1 entered promiscuous mode [ 45.938148][ T430] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.945293][ T430] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.952508][ T430] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.959548][ T430] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.975073][ T112] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.982296][ T112] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.989867][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.997491][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.006919][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.015092][ T112] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.022103][ T112] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.030752][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.039290][ T112] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.046336][ T112] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.057497][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.067274][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.080590][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 46.091732][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 46.099866][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 46.107437][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 46.115937][ T430] device veth0_vlan entered promiscuous mode [ 46.124987][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 46.134969][ T430] device veth1_macvtap entered promiscuous mode [ 46.143497][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 46.153208][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 46.489846][ T24] audit: type=1400 audit(1771656162.939:106): avc: denied { create } for pid=463 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bluetooth_socket permissive=1 [ 46.636657][ T24] audit: type=1401 audit(1771656163.089:107): op=setxattr invalid_context="u:object_r:app_data_file:s0:c512,c768" 2026/02/21 06:42:43 executed programs: 0 [ 46.777470][ T24] audit: type=1400 audit(1771656163.229:108): avc: denied { write } for pid=404 comm="syz-execprog" path="pipe:[15292]" dev="pipefs" ino=15292 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 46.814202][ T477] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.821230][ T477] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.828936][ T477] device bridge_slave_0 entered promiscuous mode [ 46.838291][ T477] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.845437][ T477] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.852911][ T477] device bridge_slave_1 entered promiscuous mode [ 46.882374][ T477] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.889643][ T477] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.896917][ T477] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.903944][ T477] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.912506][ T9] device bridge_slave_1 left promiscuous mode [ 46.918910][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.926508][ T9] device bridge_slave_0 left promiscuous mode [ 46.932614][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.940486][ T9] device veth1_macvtap left promiscuous mode [ 46.946734][ T9] device veth0_vlan left promiscuous mode [ 47.067598][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.074815][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.089229][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 47.096739][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 47.105698][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 47.114075][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 47.122270][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.129294][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.138250][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 47.146595][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.154750][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.161754][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.171939][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 47.179977][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 47.189015][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 47.197148][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 47.209144][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 47.217624][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 47.228133][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 47.236141][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 47.244059][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 47.251815][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 47.260026][ T477] device veth0_vlan entered promiscuous mode [ 47.268949][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 47.277468][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 47.286635][ T477] device veth1_macvtap entered promiscuous mode [ 47.296132][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 47.303809][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 47.312133][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 47.322995][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 47.331406][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 47.351213][ T24] audit: type=1400 audit(1771656163.799:109): avc: denied { create } for pid=481 comm="syz.2.17" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=tipc_socket permissive=1 [ 47.370594][ T24] audit: type=1400 audit(1771656163.799:110): avc: denied { write } for pid=481 comm="syz.2.17" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=tipc_socket permissive=1 [ 47.401561][ T24] audit: type=1400 audit(1771656163.849:111): avc: denied { setopt } for pid=481 comm="syz.2.17" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=tipc_socket permissive=1 [ 147.584092][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 147.590725][ C0] rcu: 0-...!: (10000 ticks this GP) idle=fb2/1/0x4000000000000000 softirq=2891/2891 fqs=0 last_accelerate: 9cfc/c40c dyntick_enabled: 1 [ 147.604753][ C0] (t=10000 jiffies g=1453 q=45) [ 147.609689][ C0] rcu: rcu_preempt kthread starved for 10000 jiffies! g1453 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 147.621039][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 147.631158][ C0] rcu: RCU grace-period kthread stack dump: [ 147.637033][ C0] task:rcu_preempt state:I stack: 0 pid: 13 ppid: 2 flags:0x00004000 [ 147.646207][ C0] Call Trace: [ 147.649490][ C0] __schedule+0xb53/0x1320 [ 147.653976][ C0] ? __sched_text_start+0x8/0x8 [ 147.658923][ C0] ? __mod_timer+0x7da/0xb50 [ 147.663494][ C0] schedule+0x13c/0x1d0 [ 147.667644][ C0] schedule_timeout+0x159/0x330 [ 147.672468][ C0] ? console_conditional_schedule+0x10/0x10 [ 147.678338][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 147.683767][ C0] ? run_local_timers+0x160/0x160 [ 147.688782][ C0] ? prepare_to_swait_event+0x320/0x340 [ 147.694316][ C0] rcu_gp_kthread+0x1045/0x2730 [ 147.699151][ C0] ? rcu_barrier_callback+0x50/0x50 [ 147.704320][ C0] ? __kasan_check_read+0x11/0x20 [ 147.709315][ C0] ? __kthread_parkme+0xb9/0x1c0 [ 147.714225][ C0] kthread+0x346/0x3d0 [ 147.718436][ C0] ? rcu_barrier_callback+0x50/0x50 [ 147.723601][ C0] ? kthread_blkcg+0xd0/0xd0 [ 147.728159][ C0] ret_from_fork+0x1f/0x30 [ 147.732609][ C0] NMI backtrace for cpu 0 [ 147.736927][ C0] CPU: 0 PID: 491 Comm: syz.2.20 Not tainted syzkaller #0 [ 147.744015][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 147.754105][ C0] Call Trace: [ 147.757372][ C0] [ 147.760209][ C0] __dump_stack+0x21/0x24 [ 147.764511][ C0] dump_stack_lvl+0x1a7/0x208 [ 147.769246][ C0] ? show_regs_print_info+0x18/0x18 [ 147.774422][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 147.779850][ C0] ? _raw_spin_lock+0xf0/0xf0 [ 147.784501][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 147.790801][ C0] dump_stack+0x15/0x1c [ 147.795086][ C0] nmi_trigger_cpumask_backtrace+0x27f/0x2c0 [ 147.801042][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 147.806904][ C0] rcu_dump_cpu_stacks+0x19c/0x2c0 [ 147.811985][ C0] rcu_sched_clock_irq+0xf88/0x1880 [ 147.817154][ C0] ? rcutree_dead_cpu+0x310/0x310 [ 147.822145][ C0] ? hrtimer_run_queues+0x166/0x430 [ 147.827312][ C0] update_process_times+0x198/0x200 [ 147.832490][ C0] tick_sched_timer+0x17c/0x240 [ 147.837318][ C0] ? tick_setup_sched_timer+0x450/0x450 [ 147.842842][ C0] __hrtimer_run_queues+0x380/0x970 [ 147.848108][ C0] ? process_backlog+0x5e0/0x600 [ 147.853107][ C0] ? hrtimer_interrupt+0xdc0/0xdc0 [ 147.858194][ C0] ? ktime_get_update_offsets_now+0x293/0x2b0 [ 147.864259][ C0] hrtimer_interrupt+0x3a6/0xdc0 [ 147.869175][ C0] ? sched_clock_cpu+0x1b/0x3d0 [ 147.873999][ C0] ? do_sync_core+0x22/0x30 [ 147.878474][ C0] __sysvec_apic_timer_interrupt+0xfa/0x3f0 [ 147.884338][ C0] asm_call_irq_on_stack+0xf/0x20 [ 147.889364][ C0] [ 147.892270][ C0] sysvec_apic_timer_interrupt+0x85/0xe0 [ 147.898043][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 147.903998][ C0] RIP: 0010:tipc_sk_lookup+0x4ec/0x5f0 [ 147.909509][ C0] Code: b7 00 49 29 c5 74 67 49 8d 9d 80 00 00 00 48 89 df be 04 00 00 00 e8 b3 94 37 fd 41 be 01 00 00 00 f0 45 0f c1 b5 80 00 00 00 <31> ff 44 89 f6 e8 3a 15 fd fc 45 85 f6 0f 84 80 00 00 00 bf fe ff [ 147.929127][ C0] RSP: 0018:ffffc90000d969a0 EFLAGS: 00000206 [ 147.935166][ C0] RAX: 0000000000000301 RBX: ffff8881113a3280 RCX: ffffffff8467a4ad [ 147.943105][ C0] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8881113a3280 [ 147.951134][ C0] RBP: ffffc90000d96a90 R08: ffff8881113a3283 R09: 1ffff11022274650 [ 147.959094][ C0] R10: dffffc0000000000 R11: ffffed1022274651 R12: dffffc0000000000 [ 147.967043][ C0] R13: ffff8881113a3200 R14: 0000000000000004 R15: fffffffffffffc18 [ 147.975290][ C0] ? tipc_sk_lookup+0x4dd/0x5f0 [ 147.980117][ C0] ? tipc_sk_rcv+0x1dc0/0x1dc0 [ 147.984933][ C0] tipc_sk_rcv+0x350/0x1dc0 [ 147.989508][ C0] ? __stack_depot_save+0x47d/0x4c0 [ 147.994687][ C0] ? kasan_set_track+0x5b/0x70 [ 147.999435][ C0] ? kasan_set_track+0x4a/0x70 [ 148.004174][ C0] ? ____kasan_slab_free+0x125/0x160 [ 148.009426][ C0] ? __kasan_slab_free+0x11/0x20 [ 148.014336][ C0] ? slab_free_freelist_hook+0xc5/0x190 [ 148.020062][ C0] ? kmem_cache_free+0x100/0x2d0 [ 148.025009][ C0] ? kfree_skbmem+0x10c/0x180 [ 148.029656][ C0] ? kfree_skb+0xc1/0x2f0 [ 148.033963][ C0] ? tipc_msg_reverse+0x698/0x900 [ 148.038966][ C0] ? tipc_node_xmit+0x26c/0xd80 [ 148.043809][ C0] ? tipc_sk_filter_rcv+0x15e5/0x3910 [ 148.049204][ C0] ? tipc_sk_rcv+0x742/0x1dc0 [ 148.053862][ C0] ? tipc_node_xmit+0x26c/0xd80 [ 148.058695][ C0] ? exit_to_user_mode_prepare+0x76/0xa0 [ 148.064303][ C0] ? syscall_exit_to_user_mode+0x1d/0x40 [ 148.069909][ C0] ? do_syscall_64+0x3d/0x40 [ 148.074480][ C0] ? __skb_queue_purge+0x170/0x170 [ 148.079733][ C0] tipc_node_xmit+0x26c/0xd80 [ 148.084410][ C0] ? kmem_cache_free+0x100/0x2d0 [ 148.089415][ C0] ? ____kasan_slab_free+0x130/0x160 [ 148.094675][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 148.100211][ C0] ? slab_free_freelist_hook+0xc5/0x190 [ 148.105824][ C0] ? kfree_skbmem+0x10c/0x180 [ 148.110469][ C0] ? kmem_cache_free+0x100/0x2d0 [ 148.115461][ C0] tipc_node_xmit_skb+0xf7/0x150 [ 148.120454][ C0] ? kfree_skb+0xc1/0x2f0 [ 148.124753][ C0] ? __skb_queue_purge+0x170/0x170 [ 148.129830][ C0] ? trace_tipc_sk_rej_msg+0x2c/0x6d0 [ 148.135167][ C0] tipc_sk_rcv+0x1c46/0x1dc0 [ 148.139723][ C0] ? __stack_depot_save+0x47d/0x4c0 [ 148.145064][ C0] ? __reset_page_owner+0x35/0x140 [ 148.150141][ C0] ? __release_sock+0x146/0x360 [ 148.154955][ C0] ? stack_depot_save+0xe/0x10 [ 148.159704][ C0] ? __reset_page_owner+0x140/0x140 [ 148.164984][ C0] ? __free_pages_ok+0x80b/0x830 [ 148.169978][ C0] ? __free_pages+0xd8/0x3b0 [ 148.174536][ C0] ? __skb_queue_purge+0x170/0x170 [ 148.179632][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 148.185407][ C0] tipc_node_xmit+0x26c/0xd80 [ 148.190057][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 148.195571][ C0] ? __free_pages+0xd8/0x3b0 [ 148.200128][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 148.205553][ C0] ? _raw_spin_lock+0xf0/0xf0 [ 148.210206][ C0] tipc_sk_filter_rcv+0x15e5/0x3910 [ 148.215399][ C0] ? tipc_sk_dump+0xfc0/0xfc0 [ 148.220047][ C0] ? __kasan_check_write+0x14/0x20 [ 148.225127][ C0] ? _raw_spin_lock_bh+0x94/0xf0 [ 148.230140][ C0] tipc_sk_rcv+0x742/0x1dc0 [ 148.234625][ C0] ? kfree_skbmem+0x10c/0x180 [ 148.239281][ C0] ? __skb_queue_purge+0x170/0x170 [ 148.244361][ C0] ? tipc_sk_filter_rcv+0x30d7/0x3910 [ 148.249704][ C0] ? ____fput+0x15/0x20 [ 148.253965][ C0] ? task_work_run+0x127/0x190 [ 148.258697][ C0] tipc_node_xmit+0x26c/0xd80 [ 148.263339][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 148.268855][ C0] tipc_node_distr_xmit+0x2a3/0x3b0 [ 148.274023][ C0] ? tipc_node_xmit_skb+0x150/0x150 [ 148.279191][ C0] tipc_sk_backlog_rcv+0x17d/0x210 [ 148.284357][ C0] ? tipc_sk_timeout+0x990/0x990 [ 148.289289][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 148.294722][ C0] __release_sock+0x146/0x360 [ 148.299463][ C0] ? _raw_write_lock_irq+0xf0/0xf0 [ 148.304546][ C0] release_sock+0x60/0x1b0 [ 148.308930][ C0] tipc_release+0xbd4/0x1490 [ 148.313487][ C0] ? down_read_killable+0xe0/0xe0 [ 148.318658][ C0] sock_close+0xe0/0x270 [ 148.322874][ C0] ? sock_mmap+0xa0/0xa0 [ 148.327091][ C0] __fput+0x2fb/0x770 [ 148.331039][ C0] ____fput+0x15/0x20 [ 148.334988][ C0] task_work_run+0x127/0x190 [ 148.339633][ C0] exit_to_user_mode_loop+0xcb/0xe0 [ 148.344801][ C0] exit_to_user_mode_prepare+0x76/0xa0 [ 148.350235][ C0] syscall_exit_to_user_mode+0x1d/0x40 [ 148.355657][ C0] do_syscall_64+0x3d/0x40 [ 148.360041][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 148.365909][ C0] RIP: 0033:0x7fbefa7ad379 [ 148.370304][ C0] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 148.389963][ C0] RSP: 002b:00007fbefa612028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 148.398346][ C0] RAX: 00000000000203a0 RBX: 00007fbefa9f8fa0 RCX: 00007fbefa7ad379 [ 148.406299][ C0] RDX: 0000000000000000 RSI: 00002000000003c0 RDI: 0000000000000003 [ 148.414261][ C0] RBP: 00007fbefa840d68 R08: 0000000000000000 R09: 0000000000000000 [ 148.422205][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 148.430239][ C0] R13: 00007fbefa9f9038 R14: 00007fbefa9f8fa0 R15: 00007ffd14a024b8 [ 199.227247][ C1] watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.2.20:490] [ 199.235252][ C1] Modules linked in: [ 199.239270][ C1] CPU: 1 PID: 490 Comm: syz.2.20 Not tainted syzkaller #0 [ 199.246441][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 199.256491][ C1] RIP: 0010:kvm_wait+0xce/0x130 [ 199.261332][ C1] Code: 38 f0 75 26 41 f7 c4 00 02 00 00 75 0f 0f 1f 44 00 00 0f 00 2d 33 1e b8 03 f4 eb 0e 0f 1f 44 00 00 0f 00 2d 24 1e b8 03 fb f4 <4c> 89 64 24 18 ff 74 24 18 9d 48 c7 44 24 20 0e 36 e0 45 4b c7 04 [ 199.281093][ C1] RSP: 0018:ffffc90000b379a0 EFLAGS: 00000246 [ 199.287239][ C1] RAX: 0000000000000003 RBX: ffff8881113a3288 RCX: ffffffff814bed9a [ 199.295370][ C1] RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff8881113a3288 [ 199.303509][ C1] RBP: ffffc90000b37a50 R08: ffff8881113a3288 R09: 1ffff11022274651 [ 199.311552][ C1] R10: dffffc0000000000 R11: ffffed1022274652 R12: 0000000000000246 [ 199.319680][ C1] R13: 1ffff11022274651 R14: dffffc0000000000 R15: 1ffff92000166f38 [ 199.327660][ C1] FS: 000055557641e500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 199.336572][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 199.343240][ C1] CR2: 00007fbefa7faac0 CR3: 000000011b5fc000 CR4: 00000000003506a0 [ 199.351286][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 199.359440][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 199.367479][ C1] Call Trace: [ 199.370773][ C1] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 199.376989][ C1] ? kvm_arch_para_hints+0x30/0x30 [ 199.382093][ C1] ? __pv_queued_spin_lock_slowpath+0x6ba/0xb70 [ 199.388408][ C1] __pv_queued_spin_lock_slowpath+0x714/0xb70 [ 199.394464][ C1] ? __pv_queued_spin_unlock_slowpath+0x280/0x280 [ 199.400944][ C1] ? kasan_save_stack+0x49/0x60 [ 199.405788][ C1] ? __kasan_record_aux_stack+0xd2/0x100 [ 199.411413][ C1] ? kasan_record_aux_stack+0xe/0x10 [ 199.416679][ C1] ? task_work_add+0x27/0x1e0 [ 199.421353][ C1] ? fput+0x1a/0x20 [ 199.425144][ C1] ? filp_close+0x105/0x150 [ 199.429641][ C1] ? __close_range+0x1d1/0x440 [ 199.434398][ C1] ? __x64_sys_close_range+0x7a/0x90 [ 199.439865][ C1] queued_spin_lock_slowpath+0x47/0x50 [ 199.445403][ C1] _raw_spin_lock_bh+0xe4/0xf0 [ 199.450261][ C1] ? _raw_spin_lock_irq+0xf0/0xf0 [ 199.455360][ C1] lock_sock_nested+0x90/0x2a0 [ 199.460229][ C1] ? sock_init_data+0xc0/0xc0 [ 199.465086][ C1] ? fsnotify+0x19ab/0x1a70 [ 199.469586][ C1] tipc_release+0x56/0x1490 [ 199.474168][ C1] ? down_read_killable+0xe0/0xe0 [ 199.479184][ C1] sock_close+0xe0/0x270 [ 199.483511][ C1] ? sock_mmap+0xa0/0xa0 [ 199.487741][ C1] __fput+0x2fb/0x770 [ 199.491720][ C1] ____fput+0x15/0x20 [ 199.495688][ C1] task_work_run+0x127/0x190 [ 199.500260][ C1] exit_to_user_mode_loop+0xcb/0xe0 [ 199.505447][ C1] exit_to_user_mode_prepare+0x76/0xa0 [ 199.510897][ C1] syscall_exit_to_user_mode+0x1d/0x40 [ 199.516440][ C1] do_syscall_64+0x3d/0x40 [ 199.520844][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 199.526733][ C1] RIP: 0033:0x7fbefa7ad379 [ 199.531138][ C1] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 199.551409][ C1] RSP: 002b:00007ffd14a02618 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 199.559990][ C1] RAX: 0000000000000000 RBX: 00007fbefa9fada0 RCX: 00007fbefa7ad379 [ 199.568031][ C1] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 199.576098][ C1] RBP: 00007fbefa9fada0 R08: 0000000000000006 R09: 0000000000000000 [ 199.584057][ C1] R10: 00007fbefa9facb0 R11: 0000000000000246 R12: 000000000000bcd8 [ 199.592018][ C1] R13: 00007fbefa9f909c R14: 000000000000b9fd R15: 00007fbefa9f9090 [ 199.600165][ C1] Sending NMI from CPU 1 to CPUs 0: [ 199.606377][ C0] NMI backtrace for cpu 0 [ 199.606386][ C0] CPU: 0 PID: 491 Comm: syz.2.20 Not tainted syzkaller #0 [ 199.606391][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 199.606395][ C0] RIP: 0010:tipc_node_distr_xmit+0x6/0x3b0 [ 199.606404][ C0] Code: 80 00 00 00 75 11 31 c0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b8 c5 16 00 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 <41> 56 41 55 41 54 53 48 83 e4 e0 48 81 ec e0 00 00 00 49 89 f7 48 [ 199.606408][ C0] RSP: 0018:ffffc90000d96a88 EFLAGS: 00000246 [ 199.606415][ C0] RAX: 1ffff11022274646 RBX: dffffc0000000000 RCX: ffff8881185613c0 [ 199.606419][ C0] RDX: 0000000000000000 RSI: ffffc90000d96c40 RDI: ffff88812884e040 [ 199.606424][ C0] RBP: ffffc90000d96a90 R08: ffff8881113a328b R09: 1ffff11022274651 [ 199.606433][ C0] R10: dffffc0000000000 R11: ffffed1022274652 R12: ffffc90000d96ec0 [ 199.606437][ C0] R13: ffff8881113a3200 R14: 0000000000000000 R15: ffff8881113a3200 [ 199.606442][ C0] FS: 00007fbefa6126c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 199.606446][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 199.606450][ C0] CR2: 00007fbefa5f0ff8 CR3: 000000011b5fc000 CR4: 00000000003506b0 [ 199.606455][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 199.606459][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 199.606461][ C0] Call Trace: [ 199.606464][ C0] tipc_sk_rcv+0x18ed/0x1dc0 [ 199.606467][ C0] ? __stack_depot_save+0x47d/0x4c0 [ 199.606470][ C0] ? kasan_set_track+0x5b/0x70 [ 199.606473][ C0] ? kasan_set_track+0x4a/0x70 [ 199.606476][ C0] ? ____kasan_slab_free+0x125/0x160 [ 199.606479][ C0] ? __kasan_slab_free+0x11/0x20 [ 199.606483][ C0] ? slab_free_freelist_hook+0xc5/0x190 [ 199.606485][ C0] ? kmem_cache_free+0x100/0x2d0 [ 199.606488][ C0] ? kfree_skbmem+0x10c/0x180 [ 199.606491][ C0] ? kfree_skb+0xc1/0x2f0 [ 199.606494][ C0] ? tipc_msg_reverse+0x698/0x900 [ 199.606497][ C0] ? tipc_node_xmit+0x26c/0xd80 [ 199.606500][ C0] ? tipc_sk_filter_rcv+0x15e5/0x3910 [ 199.606503][ C0] ? tipc_sk_rcv+0x742/0x1dc0 [ 199.606506][ C0] ? tipc_node_xmit+0x26c/0xd80 [ 199.606509][ C0] ? exit_to_user_mode_prepare+0x76/0xa0 [ 199.606513][ C0] ? syscall_exit_to_user_mode+0x1d/0x40 [ 199.606515][ C0] ? do_syscall_64+0x3d/0x40 [ 199.606518][ C0] ? __skb_queue_purge+0x170/0x170 [ 199.606521][ C0] tipc_node_xmit+0x26c/0xd80 [ 199.606524][ C0] ? kmem_cache_free+0x100/0x2d0 [ 199.606527][ C0] ? ____kasan_slab_free+0x130/0x160 [ 199.606531][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 199.606534][ C0] ? slab_free_freelist_hook+0xc5/0x190 [ 199.606537][ C0] ? kfree_skbmem+0x10c/0x180 [ 199.606540][ C0] ? kmem_cache_free+0x100/0x2d0 [ 199.606543][ C0] tipc_node_xmit_skb+0xf7/0x150 [ 199.606546][ C0] ? kfree_skb+0xc1/0x2f0 [ 199.606549][ C0] ? __skb_queue_purge+0x170/0x170 [ 199.606552][ C0] ? trace_tipc_sk_rej_msg+0x2c/0x6d0 [ 199.606555][ C0] tipc_sk_rcv+0x1c46/0x1dc0 [ 199.606558][ C0] ? __stack_depot_save+0x47d/0x4c0 [ 199.606561][ C0] ? __reset_page_owner+0x35/0x140 [ 199.606564][ C0] ? __release_sock+0x146/0x360 [ 199.606567][ C0] ? stack_depot_save+0xe/0x10 [ 199.606570][ C0] ? __reset_page_owner+0x140/0x140 [ 199.606573][ C0] ? __free_pages_ok+0x80b/0x830 [ 199.606576][ C0] ? __free_pages+0xd8/0x3b0 [ 199.606579][ C0] ? __skb_queue_purge+0x170/0x170 [ 199.606582][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 199.606585][ C0] tipc_node_xmit+0x26c/0xd80 [ 199.606588][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 199.606591][ C0] ? __free_pages+0xd8/0x3b0 [ 199.606594][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 199.606597][ C0] ? _raw_spin_lock+0xf0/0xf0 [ 199.606600][ C0] tipc_sk_filter_rcv+0x15e5/0x3910 [ 199.606603][ C0] ? tipc_sk_dump+0xfc0/0xfc0 [ 199.606606][ C0] ? __kasan_check_write+0x14/0x20 [ 199.606609][ C0] ? _raw_spin_lock_bh+0x94/0xf0 [ 199.606612][ C0] tipc_sk_rcv+0x742/0x1dc0 [ 199.606615][ C0] ? kfree_skbmem+0x10c/0x180 [ 199.606617][ C0] ? __skb_queue_purge+0x170/0x170 [ 199.606619][ C0] ? tipc_sk_filter_rcv+0x30d7/0x3910 [ 199.606621][ C0] ? ____fput+0x15/0x20 [ 199.606623][ C0] ? task_work_run+0x127/0x190 [ 199.606626][ C0] tipc_node_xmit+0x26c/0xd80 [ 199.606628][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 199.606630][ C0] tipc_node_distr_xmit+0x2a3/0x3b0 [ 199.606633][ C0] ? tipc_node_xmit_skb+0x150/0x150 [ 199.606635][ C0] tipc_sk_backlog_rcv+0x17d/0x210 [ 199.606637][ C0] ? tipc_sk_timeout+0x990/0x990 [ 199.606640][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 199.606642][ C0] __release_sock+0x146/0x360 [ 199.606644][ C0] ? _raw_write_lock_irq+0xf0/0xf0 [ 199.606646][ C0] release_sock+0x60/0x1b0 [ 199.606648][ C0] tipc_release+0xbd4/0x1490 [ 199.606651][ C0] ? down_read_killable+0xe0/0xe0 [ 199.606653][ C0] sock_close+0xe0/0x270 [ 199.606655][ C0] ? sock_mmap+0xa0/0xa0 [ 199.606657][ C0] __fput+0x2fb/0x770 [ 199.606659][ C0] ____fput+0x15/0x20 [ 199.606662][ C0] task_work_run+0x127/0x190 [ 199.606664][ C0] exit_to_user_mode_loop+0xcb/0xe0 [ 199.606667][ C0] exit_to_user_mode_prepare+0x76/0xa0 [ 199.606669][ C0] syscall_exit_to_user_mode+0x1d/0x40 [ 199.606671][ C0] do_syscall_64+0x3d/0x40 [ 199.606674][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 199.606676][ C0] RIP: 0033:0x7fbefa7ad379 [ 199.606684][ C0] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 199.606686][ C0] RSP: 002b:00007fbefa612028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 199.606692][ C0] RAX: 00000000000203a0 RBX: 00007fbefa9f8fa0 RCX: 00007fbefa7ad379 [ 199.606696][ C0] RDX: 0000000000000000 RSI: 00002000000003c0 RDI: 0000000000000003 [ 199.606699][ C0] RBP: 00007fbefa840d68 R08: 0000000000000000 R09: 0000000000000000 [ 199.606702][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 199.606706][ C0] R13: 00007fbefa9f9038 R14: 00007fbefa9f8fa0 R15: 00007ffd14a024b8