[ 397.179854][ T335] syz-executor.0 (335) used greatest stack depth: 21216 bytes left
[ 398.140232][ T8] device bridge_slave_1 left promiscuous mode
[ 398.146627][ T8] bridge0: port 2(bridge_slave_1) entered disabled state
[ 398.154355][ T8] device bridge_slave_0 left promiscuous mode
[ 398.160569][ T8] bridge0: port 1(bridge_slave_0) entered disabled state
[ 398.168666][ T8] device veth1_macvtap left promiscuous mode
[ 398.174968][ T8] device veth0_vlan left promiscuous mode
Warning: Permanently added '10.128.1.126' (ED25519) to the list of known hosts.
[ 513.329251][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 513.336880][ C1] (detected by 1, t=10002 jiffies, g=238917, q=154)
[ 513.343755][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10002 (4294988539-4294978537), jiffies_till_next_fqs=1, root ->qsmask 0x0
[ 513.358026][ C1] rcu: rcu_preempt kthread starved for 10002 jiffies! g238917 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
[ 513.369813][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
[ 513.379950][ C1] rcu: RCU grace-period kthread stack dump:
[ 513.386025][ C1] task:rcu_preempt state:R running task stack:28752 pid: 14 ppid: 2 flags:0x00004000
[ 513.397016][ C1] Call Trace:
[ 513.400456][ C1]
[ 513.403515][ C1] __schedule+0xb6e/0x14c0
[ 513.408340][ C1] ? release_firmware_map_entry+0x190/0x190
[ 513.415293][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 513.421600][ C1] ? __mod_timer+0x7ae/0xb30
[ 513.426503][ C1] schedule+0x11e/0x1e0
[ 513.430776][ C1] schedule_timeout+0x12c/0x2e0
[ 513.435819][ C1] ? console_conditional_schedule+0x30/0x30
[ 513.442257][ C1] ? update_process_times+0x200/0x200
[ 513.447838][ C1] ? prepare_to_swait_event+0x308/0x320
[ 513.453811][ C1] rcu_gp_fqs_loop+0x293/0xf60
[ 513.458757][ C1] ? debug_smp_processor_id+0x17/0x20
[ 513.464471][ C1] ? __note_gp_changes+0x4e2/0x9e0
[ 513.469659][ C1] ? rcu_gp_init+0xc00/0xc00
[ 513.474334][ C1] ? _raw_spin_unlock_irq+0x4e/0x70
[ 513.479530][ C1] ? rcu_gp_init+0x9a7/0xc00
[ 513.484274][ C1] rcu_gp_kthread+0x98/0x330
[ 513.488848][ C1] ? wake_nocb_gp+0x1d0/0x1d0
[ 513.493505][ C1] ? __kasan_check_read+0x11/0x20
[ 513.498608][ C1] ? __kthread_parkme+0xac/0x200
[ 513.503891][ C1] ? preempt_count_add+0x90/0x1b0
[ 513.509321][ C1] kthread+0x411/0x500
[ 513.513672][ C1] ? wake_nocb_gp+0x1d0/0x1d0
[ 513.518953][ C1] ? kthread_blkcg+0xd0/0xd0
[ 513.523618][ C1] ret_from_fork+0x1f/0x30
[ 513.528176][ C1]
[ 513.531591][ C1] rcu: Stack dump where RCU GP kthread last ran:
[ 513.538184][ C1] NMI backtrace for cpu 1
[ 513.542861][ C1] CPU: 1 PID: 14717 Comm: syz-executor249 Not tainted syzkaller #0
[ 513.550830][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 513.561051][ C1] Call Trace:
[ 513.564324][ C1]
[ 513.567195][ C1] __dump_stack+0x21/0x30
[ 513.571554][ C1] dump_stack_lvl+0xee/0x150
[ 513.576390][ C1] ? show_regs_print_info+0x20/0x20
[ 513.581581][ C1] dump_stack+0x15/0x20
[ 513.585913][ C1] nmi_cpu_backtrace+0x2b4/0x2c0
[ 513.590974][ C1] ? nmi_trigger_cpumask_backtrace+0x240/0x240
[ 513.597494][ C1] ? load_image+0x3a0/0x3a0
[ 513.602023][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 513.608500][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 513.614741][ C1] nmi_trigger_cpumask_backtrace+0x138/0x240
[ 513.620787][ C1] arch_trigger_cpumask_backtrace+0x10/0x20
[ 513.626769][ C1] rcu_check_gp_kthread_starvation+0x1e0/0x260
[ 513.632900][ C1] print_other_cpu_stall+0xded/0xfd0
[ 513.638176][ C1] ? smp_call_function_single_async+0xb5/0x110
[ 513.644582][ C1] ? print_cpu_stall+0x600/0x600
[ 513.649620][ C1] ? tick_nohz_handler+0x300/0x300
[ 513.655042][ C1] ? accumulate_nsecs_to_secs+0xb1/0x230
[ 513.660760][ C1] ? pvclock_gtod_notify+0x29b/0x390
[ 513.666113][ C1] rcu_sched_clock_irq+0x8a3/0x12b0
[ 513.672074][ C1] ? rcu_boost_kthread_setaffinity+0x310/0x310
[ 513.678402][ C1] ? raise_softirq+0x71/0xe0
[ 513.683428][ C1] ? __raise_softirq_irqoff+0xd0/0xd0
[ 513.688798][ C1] ? hrtimer_run_queues+0x166/0x430
[ 513.694269][ C1] update_process_times+0x198/0x200
[ 513.699815][ C1] tick_sched_timer+0x17c/0x240
[ 513.704677][ C1] ? tick_setup_sched_timer+0x450/0x450
[ 513.710868][ C1] __hrtimer_run_queues+0x3b5/0x9e0
[ 513.717281][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 513.723676][ C1] ? hrtimer_interrupt+0x8c0/0x8c0
[ 513.729738][ C1] ? ktime_get_update_offsets_now+0x2fa/0x310
[ 513.736276][ C1] hrtimer_interrupt+0x3c7/0x8c0
[ 513.741595][ C1] __sysvec_apic_timer_interrupt+0xfa/0x3e0
[ 513.747950][ C1] sysvec_apic_timer_interrupt+0xa4/0xc0
[ 513.754471][ C1]
[ 513.757418][ C1]
[ 513.760605][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 513.766891][ C1] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x0/0x90
[ 513.774063][ C1] Code: 44 02 08 03 00 00 00 4a 89 7c 02 10 4a 89 74 02 18 4a 89 44 02 20 48 ff c1 48 89 0a 5d c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 <55> 48 89 e5 48 8b 45 08 65 48 8b 0d e0 aa 99 7e 65 8b 15 e1 aa 99
[ 513.793846][ C1] RSP: 0018:ffffc90005d2e6b8 EFLAGS: 00000246
[ 513.800132][ C1] RAX: 0000000091c9ba57 RBX: 0000000000000057 RCX: 00000000dc443acc
[ 513.808188][ C1] RDX: 00000000652885f0 RSI: 0000000000000000 RDI: 0000000000000000
[ 513.816366][ C1] RBP: ffffc90005d2e7b0 R08: 0000000000000004 R09: 0000000000000003
[ 513.825021][ C1] R10: fffff52000ba5ce8 R11: 1ffff92000ba5ce8 R12: 0000000000000000
[ 513.834433][ C1] R13: ffff88810bdd0004 R14: 00000000261908f0 R15: ffff88810c2d50de
[ 513.842786][ C1] ? tipc_sk_lookup+0x204/0x5f0
[ 513.847846][ C1] ? _raw_spin_lock_bh+0x8e/0xe0
[ 513.852850][ C1] ? tipc_sk_rcv+0x2c60/0x2c60
[ 513.857700][ C1] tipc_sk_rcv+0x3fe/0x2c60
[ 513.862769][ C1] ? stack_trace_save+0x98/0xe0
[ 513.868010][ C1] ? __stack_depot_save+0x442/0x480
[ 513.873703][ C1] ? kasan_set_free_info+0x23/0x40
[ 513.878991][ C1] ? __kasan_slab_free+0x11/0x20
[ 513.884096][ C1] ? tipc_node_xmit+0x256/0xce0
[ 513.889005][ C1] ? tipc_sk_backlog_rcv+0x16f/0x1f0
[ 513.894468][ C1] ? __release_sock+0x143/0x350
[ 513.900902][ C1] ? sock_setsockopt+0x1b65/0x2270
[ 513.906156][ C1] ? __skb_queue_purge+0x170/0x170
[ 513.911993][ C1] tipc_node_xmit+0x256/0xce0
[ 513.917136][ C1] ? kasan_quarantine_put+0x34/0x190
[ 513.922655][ C1] ? tipc_node_get_linkname+0x1a0/0x1a0
[ 513.928284][ C1] ? ____kasan_slab_free+0x130/0x160
[ 513.933759][ C1] ? __kasan_slab_free+0x11/0x20
[ 513.938914][ C1] ? slab_free_freelist_hook+0xc2/0x190
[ 513.944498][ C1] ? kfree_skbmem+0x10c/0x180
[ 513.949176][ C1] tipc_node_distr_xmit+0x292/0x390
[ 513.954758][ C1] ? tipc_node_xmit_skb+0x130/0x130
[ 513.960201][ C1] tipc_sk_rcv+0x19de/0x2c60
[ 513.965128][ C1] ? __skb_queue_purge+0x170/0x170
[ 513.970310][ C1] tipc_node_xmit+0x256/0xce0
[ 513.975056][ C1] ? tipc_node_get_linkname+0x1a0/0x1a0
[ 513.980595][ C1] tipc_sk_push_backlog+0x4dd/0x790
[ 513.986260][ C1] tipc_sk_proto_rcv+0x98d/0x1540
[ 513.991904][ C1] ? tipc_sk_filter_rcv+0x2c40/0x2c40
[ 513.997264][ C1] ? unwind_get_return_address+0x4d/0x90
[ 514.002906][ C1] ? stack_trace_save+0xe0/0xe0
[ 514.007828][ C1] ? arch_stack_walk+0xd0/0x140
[ 514.012998][ C1] tipc_sk_filter_rcv+0x2a55/0x2c40
[ 514.018631][ C1] ? stack_trace_save+0x98/0xe0
[ 514.023703][ C1] ? __stack_depot_save+0x34/0x480
[ 514.029321][ C1] ? kasan_set_track+0x5b/0x70
[ 514.034077][ C1] ? kasan_set_track+0x4a/0x70
[ 514.039082][ C1] ? kasan_set_free_info+0x23/0x40
[ 514.044392][ C1] ? kasan_set_track+0x5b/0x70
[ 514.049279][ C1] ? kasan_set_track+0x4a/0x70
[ 514.054031][ C1] ? kasan_set_free_info+0x23/0x40
[ 514.059179][ C1] ? ____kasan_slab_free+0x125/0x160
[ 514.064541][ C1] ? __kasan_slab_free+0x11/0x20
[ 514.069470][ C1] ? slab_free_freelist_hook+0xc2/0x190
[ 514.075343][ C1] ? kmem_cache_free+0x100/0x320
[ 514.080269][ C1] ? kfree_skbmem+0x10c/0x180
[ 514.084929][ C1] ? kfree_skb+0xc1/0x2f0
[ 514.089233][ C1] ? tipc_msg_reverse+0x698/0x900
[ 514.094648][ C1] ? tipc_sk_filter_rcv+0xbe5/0x2c40
[ 514.100490][ C1] ? tipc_sk_backlog_rcv+0x109/0x1f0
[ 514.106632][ C1] ? __release_sock+0x143/0x350
[ 514.111696][ C1] ? __sys_setsockopt+0x268/0x460
[ 514.116981][ C1] ? __x64_sys_setsockopt+0xbf/0xd0
[ 514.122270][ C1] ? do_syscall_64+0x4c/0xa0
[ 514.126969][ C1] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 514.133326][ C1] ? tipc_sk_publish+0x440/0x440
[ 514.138522][ C1] ? __kasan_check_write+0x14/0x20
[ 514.144134][ C1] ? _raw_spin_lock_bh+0x8e/0xe0
[ 514.149815][ C1] tipc_sk_rcv+0x7b7/0x2c60
[ 514.154518][ C1] ? kfree_skbmem+0x10c/0x180
[ 514.159270][ C1] ? skb_release_data+0x814/0xa10
[ 514.164297][ C1] ? __skb_queue_purge+0x170/0x170
[ 514.169846][ C1] ? tipc_sk_filter_rcv+0x29de/0x2c40
[ 514.175320][ C1] tipc_node_xmit+0x256/0xce0
[ 514.180340][ C1] ? tipc_node_get_linkname+0x1a0/0x1a0
[ 514.185870][ C1] tipc_node_distr_xmit+0x292/0x390
[ 514.191302][ C1] ? tipc_node_xmit_skb+0x130/0x130
[ 514.196677][ C1] ? do_futex+0xcb2/0x2620
[ 514.201284][ C1] ? selinux_capable+0x29c/0x380
[ 514.207175][ C1] tipc_sk_backlog_rcv+0x16f/0x1f0
[ 514.213264][ C1] ? tipc_sk_timeout+0x970/0x970
[ 514.218304][ C1] ? lock_sock_nested+0x1f1/0x290
[ 514.223668][ C1] __release_sock+0x143/0x350
[ 514.228349][ C1] sock_setsockopt+0x1b65/0x2270
[ 514.233374][ C1] ? security_file_alloc+0x33/0x120
[ 514.238845][ C1] ? __sock_set_mark+0x160/0x160
[ 514.243773][ C1] ? selinux_socket_setsockopt+0x21c/0x300
[ 514.249647][ C1] ? selinux_socket_getsockopt+0x2e0/0x2e0
[ 514.255428][ C1] ? memcpy+0x56/0x70
[ 514.259716][ C1] ? __fget_files+0x2c4/0x320
[ 514.264418][ C1] ? security_socket_setsockopt+0x82/0xa0
[ 514.270723][ C1] __sys_setsockopt+0x268/0x460
[ 514.275737][ C1] ? __ia32_sys_recv+0xb0/0xb0
[ 514.280496][ C1] ? fd_install+0x169/0x2a0
[ 514.285007][ C1] ? __kasan_check_write+0x14/0x20
[ 514.290327][ C1] __x64_sys_setsockopt+0xbf/0xd0
[ 514.295361][ C1] x64_sys_call+0x982/0x9a0
[ 514.299858][ C1] do_syscall_64+0x4c/0xa0
[ 514.304268][ C1] ? clear_bhb_loop+0x50/0xa0
[ 514.309388][ C1] ? clear_bhb_loop+0x50/0xa0
[ 514.314246][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 514.320327][ C1] RIP: 0033:0x7fb8e6942b69
[ 514.324737][ C1] 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
[ 514.345394][ C1] RSP: 002b:00007fb8e6903168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 514.354121][ C1] RAX: ffffffffffffffda RBX: 00007fb8e69cc328 RCX: 00007fb8e6942b69
[ 514.362316][ C1] RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000003
[ 514.370403][ C1] RBP: 00007fb8e69cc320 R08: 0000000000000004 R09: 00007fb8e69cc328
[ 514.378604][ C1] R10: 0000000020000540 R11: 0000000000000246 R12: 00007fb8e69cc32c
[ 514.386660][ C1] R13: 0000000000000000 R14: 00007ffd418cbdd0 R15: 00007ffd418cbeb8
[ 514.394985][ C1]