[ 399.583787][T25935] device bridge_slave_1 left promiscuous mode [ 399.590360][T25935] bridge0: port 2(bridge_slave_1) entered disabled state [ 399.597803][T25935] device bridge_slave_0 left promiscuous mode [ 399.604233][T25935] bridge0: port 1(bridge_slave_0) entered disabled state [ 399.611762][T25935] device veth1_macvtap left promiscuous mode [ 399.617807][T25935] device veth0_vlan left promiscuous mode Warning: Permanently added '10.128.0.172' (ED25519) to the list of known hosts. [ 505.353198][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 505.359949][ C0] rcu: 0-...!: (10000 ticks this GP) idle=92e/1/0x4000000000000000 softirq=342918/342922 fqs=0 last_accelerate: 28d8/4fe9 dyntick_enabled: 1 [ 505.374543][ C0] (t=10003 jiffies g=183441 q=318) [ 505.379976][ C0] rcu: rcu_preempt kthread starved for 10003 jiffies! g183441 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 505.391496][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 505.401531][ C0] rcu: RCU grace-period kthread stack dump: [ 505.407418][ C0] task:rcu_preempt state:I stack: 0 pid: 13 ppid: 2 flags:0x00004000 [ 505.416942][ C0] Call Trace: [ 505.420232][ C0] __schedule+0xb47/0x1310 [ 505.424741][ C0] ? release_firmware_map_entry+0x190/0x190 [ 505.430612][ C0] ? __mod_timer+0x7ae/0xb30 [ 505.435187][ C0] schedule+0x13c/0x1d0 [ 505.439314][ C0] schedule_timeout+0x12c/0x2d0 [ 505.444134][ C0] ? console_conditional_schedule+0x10/0x10 [ 505.450519][ C0] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 505.456199][ C0] ? run_local_timers+0x160/0x160 [ 505.461492][ C0] ? prepare_to_swait_event+0x320/0x340 [ 505.467024][ C0] rcu_gp_kthread+0x100a/0x26a0 [ 505.471858][ C0] ? rcu_barrier_callback+0x50/0x50 [ 505.477050][ C0] ? __kasan_check_read+0x11/0x20 [ 505.482062][ C0] ? __kthread_parkme+0xb9/0x1c0 [ 505.487072][ C0] kthread+0x346/0x3d0 [ 505.491136][ C0] ? rcu_barrier_callback+0x50/0x50 [ 505.496439][ C0] ? kthread_blkcg+0xd0/0xd0 [ 505.501010][ C0] ret_from_fork+0x1f/0x30 [ 505.505443][ C0] NMI backtrace for cpu 0 [ 505.509772][ C0] CPU: 0 PID: 31062 Comm: syz-executor233 Not tainted syzkaller #0 [ 505.517627][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025 [ 505.527772][ C0] Call Trace: [ 505.531025][ C0] [ 505.533864][ C0] __dump_stack+0x21/0x24 [ 505.538175][ C0] dump_stack_lvl+0x169/0x1d8 [ 505.542918][ C0] ? show_regs_print_info+0x18/0x18 [ 505.548088][ C0] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 505.553812][ C0] ? _raw_spin_lock+0xe0/0xe0 [ 505.558499][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 505.564626][ C0] dump_stack+0x15/0x1c [ 505.568771][ C0] nmi_trigger_cpumask_backtrace+0x27f/0x2c0 [ 505.574814][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 505.580676][ C0] rcu_dump_cpu_stacks+0x19c/0x2c0 [ 505.585767][ C0] rcu_sched_clock_irq+0xf79/0x1870 [ 505.590938][ C0] ? rcutree_dead_cpu+0x2f0/0x2f0 [ 505.595933][ C0] ? hrtimer_run_queues+0x166/0x430 [ 505.601104][ C0] update_process_times+0x198/0x200 [ 505.606299][ C0] tick_sched_timer+0x17c/0x240 [ 505.611139][ C0] ? tick_setup_sched_timer+0x450/0x450 [ 505.616671][ C0] __hrtimer_run_queues+0x37a/0x960 [ 505.621923][ C0] ? hrtimer_interrupt+0xdc0/0xdc0 [ 505.627002][ C0] ? ktime_get_update_offsets_now+0x293/0x2b0 [ 505.633062][ C0] hrtimer_interrupt+0x3a6/0xdc0 [ 505.637968][ C0] ? sched_clock_cpu+0x1b/0x3d0 [ 505.642992][ C0] __sysvec_apic_timer_interrupt+0xfa/0x3f0 [ 505.649009][ C0] asm_call_irq_on_stack+0xf/0x20 [ 505.654006][ C0] [ 505.657181][ C0] sysvec_apic_timer_interrupt+0x85/0xe0 [ 505.662829][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 505.668787][ C0] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x82/0x90 [ 505.675614][ C0] Code: 8d 50 28 4d 39 ca 77 22 89 ff 89 f6 4a c7 44 01 08 05 00 00 00 4a 89 7c 01 10 4a 89 74 01 18 4a 89 44 01 20 48 ff c2 48 89 11 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 48 89 e5 48 8b 45 08 [ 505.695302][ C0] RSP: 0018:ffffc90000c168d0 EFLAGS: 00000293 [ 505.701459][ C0] RAX: ffffffff845d4fcc RBX: ffff888118060080 RCX: 0000000000000000 [ 505.709430][ C0] RDX: ffff888110948000 RSI: 0000000000000004 RDI: 000000007ffffffe [ 505.717520][ C0] RBP: ffffc90000c168d0 R08: dffffc0000000000 R09: ffffed102300c011 [ 505.725481][ C0] R10: ffffed102300c011 R11: 1ffff1102300c010 R12: dffffc0000000000 [ 505.733520][ C0] R13: ffff888118060000 R14: 0000000000000004 R15: fffffffffffffc18 [ 505.741491][ C0] ? tipc_sk_lookup+0x50c/0x5f0 [ 505.746319][ C0] tipc_sk_lookup+0x50c/0x5f0 [ 505.750979][ C0] ? tipc_sk_rcv+0x1ef0/0x1ef0 [ 505.755713][ C0] ? tipc_sk_rcv+0x19d1/0x1ef0 [ 505.760443][ C0] tipc_sk_rcv+0x3eb/0x1ef0 [ 505.765090][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 505.770951][ C0] ? __stack_depot_save+0x479/0x4c0 [ 505.776149][ C0] ? kasan_set_track+0x5b/0x70 [ 505.781000][ C0] ? kasan_set_track+0x4a/0x70 [ 505.785847][ C0] ? ____kasan_slab_free+0x125/0x160 [ 505.791143][ C0] ? __kasan_slab_free+0x11/0x20 [ 505.796056][ C0] ? kmem_cache_free+0x100/0x2d0 [ 505.800978][ C0] ? kfree_skbmem+0x10c/0x180 [ 505.805649][ C0] ? kfree_skb+0xc1/0x2f0 [ 505.809992][ C0] ? sock_setsockopt+0x125e/0x2350 [ 505.815082][ C0] ? __sys_setsockopt+0x265/0x460 [ 505.820100][ C0] ? do_syscall_64+0x31/0x40 [ 505.824675][ C0] ? __skb_queue_purge+0x170/0x170 [ 505.829766][ C0] tipc_node_xmit+0x256/0xcd0 [ 505.834599][ C0] ? debug_smp_processor_id+0x17/0x20 [ 505.840004][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 505.845651][ C0] ? ____kasan_slab_free+0x130/0x160 [ 505.850942][ C0] ? __kasan_slab_free+0x11/0x20 [ 505.855966][ C0] ? slab_free_freelist_hook+0xc5/0x190 [ 505.861578][ C0] ? kfree_skbmem+0x10c/0x180 [ 505.866246][ C0] tipc_node_distr_xmit+0x292/0x390 [ 505.871527][ C0] ? tipc_node_xmit_skb+0x130/0x130 [ 505.876717][ C0] ? trace_tipc_sk_rej_msg+0x2c/0x6d0 [ 505.882183][ C0] tipc_sk_rcv+0x19b9/0x1ef0 [ 505.886797][ C0] ? __skb_queue_purge+0x170/0x170 [ 505.891913][ C0] tipc_node_xmit+0x256/0xcd0 [ 505.896669][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 505.902372][ C0] ? unwind_get_return_address+0x4d/0x90 [ 505.908060][ C0] ? stack_trace_save+0xe0/0xe0 [ 505.912906][ C0] ? arch_stack_walk+0xee/0x140 [ 505.917751][ C0] tipc_sk_filter_rcv+0x1581/0x3850 [ 505.922969][ C0] ? tipc_sk_dump+0xfc0/0xfc0 [ 505.927712][ C0] ? __kasan_check_write+0x14/0x20 [ 505.932803][ C0] ? _raw_spin_lock_bh+0x8e/0xe0 [ 505.937816][ C0] tipc_sk_rcv+0x7cc/0x1ef0 [ 505.942309][ C0] ? slab_free_freelist_hook+0xc5/0x190 [ 505.947848][ C0] ? kmem_cache_free+0x100/0x2d0 [ 505.952778][ C0] ? __skb_queue_purge+0x170/0x170 [ 505.957972][ C0] ? tipc_sk_filter_rcv+0x3034/0x3850 [ 505.963332][ C0] ? __kasan_check_write+0x14/0x20 [ 505.968455][ C0] tipc_node_xmit+0x256/0xcd0 [ 505.973128][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 505.978815][ C0] tipc_node_distr_xmit+0x292/0x390 [ 505.983993][ C0] ? tipc_node_xmit_skb+0x130/0x130 [ 505.989183][ C0] ? sched_clock_cpu+0x1b/0x3d0 [ 505.994099][ C0] ? selinux_capable+0x29c/0x380 [ 505.999011][ C0] tipc_sk_backlog_rcv+0x16f/0x1f0 [ 506.004251][ C0] ? tipc_sk_timeout+0x970/0x970 [ 506.009191][ C0] __release_sock+0x146/0x360 [ 506.013874][ C0] sock_setsockopt+0x125e/0x2350 [ 506.018792][ C0] ? __sock_set_mark+0x160/0x160 [ 506.023733][ C0] ? selinux_socket_setsockopt+0x21c/0x300 [ 506.029505][ C0] ? selinux_socket_getsockopt+0x2e0/0x2e0 [ 506.035287][ C0] ? __fget_files+0x2c4/0x320 [ 506.039948][ C0] ? security_socket_setsockopt+0x82/0xa0 [ 506.045751][ C0] __sys_setsockopt+0x265/0x460 [ 506.050582][ C0] ? __ia32_sys_recv+0xb0/0xb0 [ 506.055489][ C0] ? switch_fpu_return+0x197/0x340 [ 506.060614][ C0] __x64_sys_setsockopt+0xbf/0xd0 [ 506.065712][ C0] do_syscall_64+0x31/0x40 [ 506.070098][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 506.076330][ C0] RIP: 0033:0x7fb0282f63e9 [ 506.080968][ 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 [ 506.100690][ C0] RSP: 002b:00007fb0282b7228 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 506.109458][ C0] RAX: ffffffffffffffda RBX: 00007fb0282b76c0 RCX: 00007fb0282f63e9 [ 506.117417][ C0] RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000003 [ 506.125368][ C0] RBP: 00007fb028380328 R08: 0000000000000004 R09: 0000000000000000 [ 506.133323][ C0] R10: 0000000020000540 R11: 0000000000000246 R12: 00007fb028380320 [ 506.141521][ C0] R13: 00007fb02838032c R14: 00007fffc021f100 R15: 00007fffc021f1e8