[ 25.186402][ T7] device bridge_slave_0 left promiscuous mode [ 25.192644][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.200290][ T7] device veth1_macvtap left promiscuous mode [ 25.206580][ T7] device veth0_vlan left promiscuous mode [ 26.691937][ T7] device bridge_slave_1 left promiscuous mode [ 26.698048][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.705488][ T7] device bridge_slave_0 left promiscuous mode [ 26.711664][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.719217][ T7] device veth1_macvtap left promiscuous mode [ 26.725399][ T7] device veth0_vlan left promiscuous mode Warning: Permanently added '10.128.1.68' (ED25519) to the list of known hosts. 2025/10/04 18:57:49 parsed 1 programs [ 43.068813][ T24] kauditd_printk_skb: 31 callbacks suppressed [ 43.068823][ T24] audit: type=1400 audit(1759604269.950:105): avc: denied { unlink } for pid=425 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" [ 43.118680][ T425] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 43.542699][ T24] audit: type=1401 audit(1759604270.430:106): op=setxattr invalid_context="u:object_r:app_data_file:s0:c512,c768" [ 43.604064][ T24] audit: type=1400 audit(1759604270.490:107): avc: denied { create } for pid=443 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bluetooth_socket permissive=1 [ 43.785549][ T455] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.792806][ T455] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.800459][ T455] device bridge_slave_0 entered promiscuous mode [ 43.808130][ T455] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.815288][ T455] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.822772][ T455] device bridge_slave_1 entered promiscuous mode [ 43.850997][ T455] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.858059][ T455] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.865410][ T455] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.872542][ T455] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.892715][ T298] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.899945][ T298] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.907276][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 43.914654][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.924298][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 43.932562][ T298] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.939576][ T298] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.947778][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 43.956096][ T298] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.963125][ T298] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.974667][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 43.983602][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 43.998110][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 44.008576][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 44.016638][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 44.024394][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 44.032614][ T455] device veth0_vlan entered promiscuous mode [ 44.041177][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 44.050079][ T455] device veth1_macvtap entered promiscuous mode [ 44.059453][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 44.069166][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2025/10/04 18:57:51 executed programs: 0 [ 44.460001][ T24] audit: type=1400 audit(1759604271.340:108): avc: denied { write } for pid=416 comm="syz-execprog" path="pipe:[14880]" dev="pipefs" ino=14880 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 44.500174][ T489] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.507427][ T489] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.514878][ T489] device bridge_slave_0 entered promiscuous mode [ 44.522111][ T489] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.529138][ T489] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.536676][ T489] device bridge_slave_1 entered promiscuous mode [ 44.568049][ T489] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.575094][ T489] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.582340][ T489] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.589345][ T489] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.604418][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.612283][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.619616][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.630517][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.638789][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.645933][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.654344][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.662538][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.669541][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.684740][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 44.693726][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 44.705555][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 44.718400][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 44.726436][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 44.734052][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 44.745795][ T489] device veth0_vlan entered promiscuous mode [ 44.754805][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 44.763992][ T489] device veth1_macvtap entered promiscuous mode [ 44.773268][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 44.786737][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 44.795042][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 44.814588][ T24] audit: type=1400 audit(1759604271.700:109): avc: denied { create } for pid=493 comm="syz.2.17" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=tipc_socket permissive=1 [ 44.833912][ T24] audit: type=1400 audit(1759604271.700:110): avc: denied { write } for pid=493 comm="syz.2.17" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=tipc_socket permissive=1 [ 44.865861][ T24] audit: type=1400 audit(1759604271.750:111): avc: denied { setopt } for pid=493 comm="syz.2.17" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=tipc_socket permissive=1 [ 144.931448][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 144.938284][ C1] rcu: 1-...!: (1 GPs behind) idle=db6/1/0x4000000000000000 softirq=2428/2429 fqs=38 last_accelerate: 9c10/c320 dyntick_enabled: 1 [ 144.952169][ C1] (t=10000 jiffies g=1389 q=59) [ 144.957073][ C1] rcu: rcu_preempt kthread starved for 9922 jiffies! g1389 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 144.968243][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 144.978355][ C1] rcu: RCU grace-period kthread stack dump: [ 144.984324][ C1] task:rcu_preempt state:I stack: 0 pid: 13 ppid: 2 flags:0x00004000 [ 144.993600][ C1] Call Trace: [ 144.996895][ C1] __schedule+0xb47/0x1310 [ 145.001280][ C1] ? release_firmware_map_entry+0x190/0x190 [ 145.007157][ C1] ? __mod_timer+0x7ae/0xb30 [ 145.011974][ C1] schedule+0x13c/0x1d0 [ 145.016108][ C1] schedule_timeout+0x12c/0x2d0 [ 145.020941][ C1] ? console_conditional_schedule+0x10/0x10 [ 145.026890][ C1] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 145.032317][ C1] ? run_local_timers+0x160/0x160 [ 145.037394][ C1] ? prepare_to_swait_event+0x320/0x340 [ 145.042905][ C1] rcu_gp_kthread+0x100a/0x26a0 [ 145.047724][ C1] ? dyntick_save_progress_counter+0x1b0/0x1b0 [ 145.053846][ C1] ? rcu_barrier_callback+0x50/0x50 [ 145.059012][ C1] ? __kasan_check_read+0x11/0x20 [ 145.064031][ C1] ? __kthread_parkme+0xb9/0x1c0 [ 145.069029][ C1] kthread+0x346/0x3d0 [ 145.073067][ C1] ? rcu_barrier_callback+0x50/0x50 [ 145.078233][ C1] ? kthread_blkcg+0xd0/0xd0 [ 145.082790][ C1] ret_from_fork+0x1f/0x30 [ 145.087218][ C1] NMI backtrace for cpu 1 [ 145.091523][ C1] CPU: 1 PID: 507 Comm: syz.2.18 Not tainted syzkaller #0 [ 145.098609][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 145.108633][ C1] Call Trace: [ 145.111885][ C1] [ 145.114711][ C1] __dump_stack+0x21/0x24 [ 145.119089][ C1] dump_stack_lvl+0x169/0x1d8 [ 145.123738][ C1] ? show_regs_print_info+0x18/0x18 [ 145.128900][ C1] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 145.134497][ C1] ? _raw_spin_lock+0xe0/0xe0 [ 145.139154][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 145.145205][ C1] dump_stack+0x15/0x1c [ 145.149372][ C1] nmi_trigger_cpumask_backtrace+0x27f/0x2c0 [ 145.155322][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 145.161178][ C1] rcu_dump_cpu_stacks+0x19c/0x2c0 [ 145.166308][ C1] rcu_sched_clock_irq+0xf79/0x1870 [ 145.171472][ C1] ? rcutree_dead_cpu+0x2f0/0x2f0 [ 145.176476][ C1] ? hrtimer_run_queues+0x166/0x430 [ 145.181642][ C1] update_process_times+0x198/0x200 [ 145.186808][ C1] tick_sched_timer+0x17c/0x240 [ 145.191645][ C1] ? tick_setup_sched_timer+0x450/0x450 [ 145.197160][ C1] __hrtimer_run_queues+0x37a/0x960 [ 145.202325][ C1] ? hrtimer_interrupt+0xdc0/0xdc0 [ 145.207401][ C1] ? ktime_get_update_offsets_now+0x293/0x2b0 [ 145.213433][ C1] hrtimer_interrupt+0x3a6/0xdc0 [ 145.218338][ C1] __sysvec_apic_timer_interrupt+0xfa/0x3f0 [ 145.224306][ C1] asm_call_irq_on_stack+0xf/0x20 [ 145.229313][ C1] [ 145.232227][ C1] sysvec_apic_timer_interrupt+0x85/0xe0 [ 145.237840][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 145.243795][ C1] RIP: 0010:preempt_count_sub+0x67/0x170 [ 145.249399][ C1] Code: ff ff 7f 39 cf 7f 27 81 ff ff 00 00 00 0f 93 c1 84 c0 0f 95 c0 08 c8 74 55 65 8b 05 1f 59 be 7e f7 df 65 01 3d 16 59 be 7e 5b <41> 5e 5d c3 e8 10 8d f3 00 85 c0 74 f2 48 c7 c0 08 7e a3 86 48 c1 [ 145.269170][ C1] RSP: 0018:ffffc90000be6a60 EFLAGS: 00000213 [ 145.275311][ C1] RAX: 0000000000000202 RBX: ffffc90000be6ec0 RCX: 0000000000000200 [ 145.283310][ C1] RDX: 0000000000000000 RSI: 0000000000000201 RDI: 00000000ffffffff [ 145.291298][ C1] RBP: ffffc90000be6a68 R08: 0000000000000004 R09: 0000000000000003 [ 145.299304][ C1] R10: fffff5200017cd44 R11: 1ffff9200017cd44 R12: ffffc90000be6ec0 [ 145.307248][ C1] R13: ffffc90000be6ed0 R14: 00000000330e8c1c R15: 00000000330e8c1c [ 145.315363][ C1] __local_bh_enable_ip+0x53/0x80 [ 145.320429][ C1] _raw_spin_unlock_bh+0x51/0x60 [ 145.325355][ C1] tipc_sk_rcv+0x3db/0x1ef0 [ 145.329831][ C1] ? __stack_depot_save+0x479/0x4c0 [ 145.334999][ C1] ? kasan_set_track+0x5b/0x70 [ 145.339729][ C1] ? kasan_set_track+0x4a/0x70 [ 145.344545][ C1] ? kasan_set_free_info+0x23/0x40 [ 145.349624][ C1] ? ____kasan_slab_free+0x125/0x160 [ 145.354994][ C1] ? slab_free_freelist_hook+0xc5/0x190 [ 145.360517][ C1] ? kmem_cache_free+0x100/0x2d0 [ 145.365430][ C1] ? kfree_skbmem+0x10c/0x180 [ 145.370088][ C1] ? kfree_skb+0xc1/0x2f0 [ 145.374387][ C1] ? tipc_msg_reverse+0x698/0x900 [ 145.379381][ C1] ? tipc_node_xmit+0x256/0xcd0 [ 145.384204][ C1] ? tipc_sk_filter_rcv+0x1581/0x3850 [ 145.389563][ C1] ? tipc_node_xmit+0x256/0xcd0 [ 145.394417][ C1] ? tipc_node_distr_xmit+0x292/0x390 [ 145.399877][ C1] ? tipc_sk_backlog_rcv+0x16f/0x1f0 [ 145.405156][ C1] ? syscall_exit_to_user_mode+0x1d/0x40 [ 145.410759][ C1] ? do_syscall_64+0x3d/0x40 [ 145.415319][ C1] ? __skb_queue_purge+0x170/0x170 [ 145.420545][ C1] tipc_node_xmit+0x256/0xcd0 [ 145.425201][ C1] ? ____kasan_slab_free+0x130/0x160 [ 145.430464][ C1] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 145.435983][ C1] ? slab_free_freelist_hook+0xc5/0x190 [ 145.441504][ C1] ? kfree_skbmem+0x10c/0x180 [ 145.446172][ C1] ? kmem_cache_free+0x100/0x2d0 [ 145.451088][ C1] tipc_node_xmit_skb+0xe9/0x130 [ 145.456002][ C1] ? kfree_skb+0xc1/0x2f0 [ 145.460303][ C1] ? __skb_queue_purge+0x170/0x170 [ 145.465389][ C1] ? trace_tipc_sk_rej_msg+0x2c/0x6d0 [ 145.470754][ C1] tipc_sk_rcv+0x1d77/0x1ef0 [ 145.475344][ C1] ? __skb_queue_purge+0x170/0x170 [ 145.480617][ C1] tipc_node_xmit+0x256/0xcd0 [ 145.485293][ C1] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 145.490828][ C1] ? unwind_get_return_address+0x4d/0x90 [ 145.496443][ C1] ? __kasan_check_write+0x14/0x20 [ 145.501530][ C1] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 145.507230][ C1] ? _raw_spin_lock+0xe0/0xe0 [ 145.511883][ C1] tipc_sk_filter_rcv+0x1581/0x3850 [ 145.517073][ C1] ? tipc_sk_dump+0xfc0/0xfc0 [ 145.521718][ C1] ? __kasan_check_write+0x14/0x20 [ 145.526887][ C1] ? _raw_spin_lock_bh+0x8e/0xe0 [ 145.531795][ C1] tipc_sk_rcv+0x7cc/0x1ef0 [ 145.536265][ C1] ? slab_free_freelist_hook+0xc5/0x190 [ 145.541778][ C1] ? kmem_cache_free+0x100/0x2d0 [ 145.546688][ C1] ? __skb_queue_purge+0x170/0x170 [ 145.551768][ C1] ? tipc_sk_filter_rcv+0x3034/0x3850 [ 145.557103][ C1] ? ____fput+0x15/0x20 [ 145.561223][ C1] ? task_work_run+0x127/0x190 [ 145.565953][ C1] tipc_node_xmit+0x256/0xcd0 [ 145.570611][ C1] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 145.576215][ C1] tipc_node_distr_xmit+0x292/0x390 [ 145.581395][ C1] ? tipc_node_xmit_skb+0x130/0x130 [ 145.586655][ C1] ? kfree_skbmem+0x10c/0x180 [ 145.591297][ C1] tipc_sk_backlog_rcv+0x16f/0x1f0 [ 145.596379][ C1] ? tipc_sk_timeout+0x970/0x970 [ 145.601280][ C1] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 145.606714][ C1] __release_sock+0x146/0x360 [ 145.611356][ C1] ? _raw_write_lock_irq+0xe0/0xe0 [ 145.616435][ C1] release_sock+0x60/0x1b0 [ 145.620816][ C1] tipc_release+0xbd4/0x1490 [ 145.625374][ C1] ? down_read_killable+0xe0/0xe0 [ 145.630480][ C1] sock_close+0xe0/0x270 [ 145.634713][ C1] ? sock_mmap+0xa0/0xa0 [ 145.638923][ C1] __fput+0x2fb/0x770 [ 145.642892][ C1] ____fput+0x15/0x20 [ 145.646839][ C1] task_work_run+0x127/0x190 [ 145.651399][ C1] exit_to_user_mode_loop+0xcb/0xe0 [ 145.656569][ C1] exit_to_user_mode_prepare+0x76/0xa0 [ 145.662022][ C1] syscall_exit_to_user_mode+0x1d/0x40 [ 145.667461][ C1] do_syscall_64+0x3d/0x40 [ 145.671847][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 145.677828][ C1] RIP: 0033:0x7f5f56282be9 [ 145.682305][ C1] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 145.701972][ C1] RSP: 002b:00007f5f560f3038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 145.710455][ C1] RAX: 00000000000203a0 RBX: 00007f5f564a9fa0 RCX: 00007f5f56282be9 [ 145.718400][ C1] RDX: 0000000000000000 RSI: 00002000000003c0 RDI: 0000000000000003 [ 145.726354][ C1] RBP: 00007f5f56305e19 R08: 0000000000000000 R09: 0000000000000000 [ 145.734319][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 145.742296][ C1] R13: 00007f5f564aa038 R14: 00007f5f564a9fa0 R15: 00007ffc3549dcd8 [ 198.922485][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.2.18:506] [ 198.930789][ C0] Modules linked in: [ 198.934691][ C0] CPU: 0 PID: 506 Comm: syz.2.18 Not tainted syzkaller #0 [ 198.941779][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 198.951828][ C0] RIP: 0010:kvm_wait+0xc2/0x120 [ 198.956676][ C0] Code: 38 f0 75 26 41 f7 c4 00 02 00 00 75 0f 0f 1f 44 00 00 0f 00 2d 3f 98 98 03 f4 eb 0e 0f 1f 44 00 00 0f 00 2d 30 98 98 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 [ 198.976479][ C0] RSP: 0018:ffffc900044379a0 EFLAGS: 00000246 [ 198.982567][ C0] RAX: 0000000000000003 RBX: ffff888117d93788 RCX: ffffffff814b263a [ 198.990522][ C0] RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff888117d93788 [ 198.998492][ C0] RBP: ffffc90004437a50 R08: dffffc0000000000 R09: ffffed1022fb26f2 [ 199.006454][ C0] R10: ffffed1022fb26f2 R11: 1ffff11022fb26f1 R12: 0000000000000246 [ 199.014409][ C0] R13: 1ffff11022fb26f1 R14: dffffc0000000000 R15: 1ffff92000886f38 [ 199.022362][ C0] FS: 000055556056c500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 199.031276][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 199.037851][ C0] CR2: 0000200000006000 CR3: 0000000117997000 CR4: 00000000003506b0 [ 199.045837][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 199.053790][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 199.061742][ C0] Call Trace: [ 199.065020][ C0] ? arch_stack_walk+0xee/0x140 [ 199.069854][ C0] ? kvm_arch_para_hints+0x30/0x30 [ 199.074954][ C0] __pv_queued_spin_lock_slowpath+0x714/0xb70 [ 199.081004][ C0] ? __pv_queued_spin_unlock_slowpath+0x280/0x280 [ 199.087440][ C0] ? kasan_save_stack+0x49/0x60 [ 199.092365][ C0] ? __kasan_record_aux_stack+0xd2/0x100 [ 199.097989][ C0] ? kasan_record_aux_stack+0xe/0x10 [ 199.103255][ C0] ? task_work_add+0x27/0x1e0 [ 199.108011][ C0] ? fput+0x1a/0x20 [ 199.111799][ C0] ? filp_close+0x105/0x150 [ 199.116296][ C0] ? __close_range+0x1ca/0x430 [ 199.121040][ C0] ? __x64_sys_close_range+0x7a/0x90 [ 199.126307][ C0] queued_spin_lock_slowpath+0x47/0x50 [ 199.131835][ C0] _raw_spin_lock_bh+0xd8/0xe0 [ 199.136579][ C0] ? _raw_spin_lock_irq+0xe0/0xe0 [ 199.141587][ C0] lock_sock_nested+0x92/0x290 [ 199.146336][ C0] ? locks_remove_posix+0x530/0x530 [ 199.151511][ C0] ? sock_init_data+0xc0/0xc0 [ 199.156193][ C0] ? fsnotify+0x1967/0x1a80 [ 199.160678][ C0] tipc_release+0x56/0x1490 [ 199.165163][ C0] ? down_read_killable+0xe0/0xe0 [ 199.170164][ C0] sock_close+0xe0/0x270 [ 199.174383][ C0] ? sock_mmap+0xa0/0xa0 [ 199.178611][ C0] __fput+0x2fb/0x770 [ 199.182571][ C0] ____fput+0x15/0x20 [ 199.186540][ C0] task_work_run+0x127/0x190 [ 199.191197][ C0] exit_to_user_mode_loop+0xcb/0xe0 [ 199.196460][ C0] exit_to_user_mode_prepare+0x76/0xa0 [ 199.201902][ C0] syscall_exit_to_user_mode+0x1d/0x40 [ 199.207337][ C0] do_syscall_64+0x3d/0x40 [ 199.211733][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 199.217616][ C0] RIP: 0033:0x7f5f56282be9 [ 199.222014][ C0] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 199.241596][ C0] RSP: 002b:00007ffc3549de38 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 199.250074][ C0] RAX: 0000000000000000 RBX: 00007f5f564abda0 RCX: 00007f5f56282be9 [ 199.258042][ C0] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 199.265992][ C0] RBP: 00007f5f564abda0 R08: 0000000000000000 R09: 000000063549e12f [ 199.273944][ C0] R10: 00007f5f564abcb0 R11: 0000000000000246 R12: 000000000000b283 [ 199.281982][ C0] R13: 00007f5f564aa090 R14: ffffffffffffffff R15: 00007ffc3549df50 [ 199.290114][ C0] Sending NMI from CPU 0 to CPUs 1: [ 199.295974][ C1] NMI backtrace for cpu 1 [ 199.295984][ C1] CPU: 1 PID: 507 Comm: syz.2.18 Not tainted syzkaller #0 [ 199.295989][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 199.295992][ C1] RIP: 0010:__rcu_read_unlock+0x8/0xa0 [ 199.296000][ C1] Code: 03 5b 5d c3 89 d9 80 e1 07 80 c1 03 38 c1 7c ef 48 89 df e8 0a cf 4b 00 eb e5 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 <53> 49 be 00 00 00 00 00 fc ff df 65 48 8b 3d d5 a6 b0 7e 48 8d 9f [ 199.296004][ C1] RSP: 0018:ffffc90000be6980 EFLAGS: 00000293 [ 199.296011][ C1] RAX: ffffffff845d580a RBX: ffff888117d93780 RCX: ffff888117e03b40 [ 199.296015][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 000000007ffffffe [ 199.296019][ C1] RBP: ffffc90000be6990 R08: dffffc0000000000 R09: ffffed1022fb26f1 [ 199.296022][ C1] R10: ffffed1022fb26f1 R11: 1ffff11022fb26f0 R12: dffffc0000000000 [ 199.296026][ C1] R13: ffff888117d93700 R14: 0000000000000004 R15: fffffffffffffc18 [ 199.296030][ C1] FS: 00007f5f560f36c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 199.296034][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 199.296038][ C1] CR2: 00007f5f560d1f98 CR3: 0000000117997000 CR4: 00000000003506a0 [ 199.296042][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 199.296045][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 199.296048][ C1] Call Trace: [ 199.296050][ C1] tipc_sk_lookup+0x544/0x5f0 [ 199.296053][ C1] ? tipc_sk_rcv+0x1ef0/0x1ef0 [ 199.296056][ C1] ? tipc_sk_rcv+0x19d1/0x1ef0 [ 199.296058][ C1] tipc_sk_rcv+0x3eb/0x1ef0 [ 199.296061][ C1] ? __stack_depot_save+0x479/0x4c0 [ 199.296064][ C1] ? kasan_set_track+0x5b/0x70 [ 199.296067][ C1] ? kasan_set_track+0x4a/0x70 [ 199.296069][ C1] ? kasan_set_free_info+0x23/0x40 [ 199.296072][ C1] ? ____kasan_slab_free+0x125/0x160 [ 199.296075][ C1] ? slab_free_freelist_hook+0xc5/0x190 [ 199.296078][ C1] ? kmem_cache_free+0x100/0x2d0 [ 199.296081][ C1] ? kfree_skbmem+0x10c/0x180 [ 199.296083][ C1] ? kfree_skb+0xc1/0x2f0 [ 199.296086][ C1] ? tipc_msg_reverse+0x698/0x900 [ 199.296089][ C1] ? tipc_node_xmit+0x256/0xcd0 [ 199.296092][ C1] ? tipc_sk_filter_rcv+0x1581/0x3850 [ 199.296094][ C1] ? tipc_node_xmit+0x256/0xcd0 [ 199.296097][ C1] ? tipc_node_distr_xmit+0x292/0x390 [ 199.296100][ C1] ? tipc_sk_backlog_rcv+0x16f/0x1f0 [ 199.296103][ C1] ? syscall_exit_to_user_mode+0x1d/0x40 [ 199.296105][ C1] ? do_syscall_64+0x3d/0x40 [ 199.296108][ C1] ? __skb_queue_purge+0x170/0x170 [ 199.296111][ C1] tipc_node_xmit+0x256/0xcd0 [ 199.296114][ C1] ? ____kasan_slab_free+0x130/0x160 [ 199.296117][ C1] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 199.296119][ C1] ? slab_free_freelist_hook+0xc5/0x190 [ 199.296122][ C1] ? kfree_skbmem+0x10c/0x180 [ 199.296125][ C1] ? kmem_cache_free+0x100/0x2d0 [ 199.296127][ C1] tipc_node_xmit_skb+0xe9/0x130 [ 199.296130][ C1] ? kfree_skb+0xc1/0x2f0 [ 199.296132][ C1] ? __skb_queue_purge+0x170/0x170 [ 199.296135][ C1] ? trace_tipc_sk_rej_msg+0x2c/0x6d0 [ 199.296138][ C1] tipc_sk_rcv+0x1d77/0x1ef0 [ 199.296140][ C1] ? __skb_queue_purge+0x170/0x170 [ 199.296143][ C1] tipc_node_xmit+0x256/0xcd0 [ 199.296146][ C1] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 199.296149][ C1] ? unwind_get_return_address+0x4d/0x90 [ 199.296152][ C1] ? __kasan_check_write+0x14/0x20 [ 199.296154][ C1] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 199.296157][ C1] ? _raw_spin_lock+0xe0/0xe0 [ 199.296160][ C1] tipc_sk_filter_rcv+0x1581/0x3850 [ 199.296162][ C1] ? tipc_sk_dump+0xfc0/0xfc0 [ 199.296165][ C1] ? __kasan_check_write+0x14/0x20 [ 199.296168][ C1] ? _raw_spin_lock_bh+0x8e/0xe0 [ 199.296171][ C1] tipc_sk_rcv+0x7cc/0x1ef0 [ 199.296174][ C1] ? slab_free_freelist_hook+0xc5/0x190 [ 199.296176][ C1] ? kmem_cache_free+0x100/0x2d0 [ 199.296179][ C1] ? __skb_queue_purge+0x170/0x170 [ 199.296182][ C1] ? tipc_sk_filter_rcv+0x3034/0x3850 [ 199.296185][ C1] ? ____fput+0x15/0x20 [ 199.296187][ C1] ? task_work_run+0x127/0x190 [ 199.296190][ C1] tipc_node_xmit+0x256/0xcd0 [ 199.296193][ C1] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 199.296196][ C1] tipc_node_distr_xmit+0x292/0x390 [ 199.296198][ C1] ? tipc_node_xmit_skb+0x130/0x130 [ 199.296201][ C1] ? kfree_skbmem+0x10c/0x180 [ 199.296204][ C1] tipc_sk_backlog_rcv+0x16f/0x1f0 [ 199.296206][ C1] ? tipc_sk_timeout+0x970/0x970 [ 199.296208][ C1] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 199.296211][ C1] __release_sock+0x146/0x360 [ 199.296214][ C1] ? _raw_write_lock_irq+0xe0/0xe0 [ 199.296216][ C1] release_sock+0x60/0x1b0 [ 199.296219][ C1] tipc_release+0xbd4/0x1490 [ 199.296222][ C1] ? down_read_killable+0xe0/0xe0 [ 199.296224][ C1] sock_close+0xe0/0x270 [ 199.296227][ C1] ? sock_mmap+0xa0/0xa0 [ 199.296229][ C1] __fput+0x2fb/0x770 [ 199.296231][ C1] ____fput+0x15/0x20 [ 199.296234][ C1] task_work_run+0x127/0x190 [ 199.296237][ C1] exit_to_user_mode_loop+0xcb/0xe0 [ 199.296240][ C1] exit_to_user_mode_prepare+0x76/0xa0 [ 199.296243][ C1] syscall_exit_to_user_mode+0x1d/0x40 [ 199.296245][ C1] do_syscall_64+0x3d/0x40 [ 199.296248][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 199.296251][ C1] RIP: 0033:0x7f5f56282be9 [ 199.296259][ C1] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 199.296262][ C1] RSP: 002b:00007f5f560f3038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 199.296269][ C1] RAX: 00000000000203a0 RBX: 00007f5f564a9fa0 RCX: 00007f5f56282be9 [ 199.296273][ C1] RDX: 0000000000000000 RSI: 00002000000003c0 RDI: 0000000000000003 [ 199.296277][ C1] RBP: 00007f5f56305e19 R08: 0000000000000000 R09: 0000000000000000 [ 199.296281][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 199.296285][ C1] R13: 00007f5f564aa038 R14: 00007f5f564a9fa0 R15: 00007ffc3549dcd8