Warning: Permanently added '10.128.1.155' (ED25519) to the list of known hosts. 2026/03/07 08:38:09 parsed 1 programs [ 43.071371][ T24] kauditd_printk_skb: 30 callbacks suppressed [ 43.071392][ T24] audit: type=1400 audit(1772872690.390:104): avc: denied { unlink } for pid=418 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" [ 43.171118][ T418] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 43.820084][ T435] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.827409][ T435] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.834668][ T435] device bridge_slave_0 entered promiscuous mode [ 43.841762][ T435] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.848845][ T435] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.856159][ T435] device bridge_slave_1 entered promiscuous mode [ 43.886041][ T435] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.893273][ T435] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.900799][ T435] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.908041][ T435] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.924809][ T224] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.932155][ T224] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.939671][ T224] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 43.947187][ T224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.957229][ T224] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 43.965476][ T224] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.972618][ T224] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.981032][ T224] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 43.989387][ T224] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.996607][ T224] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.008924][ T224] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 44.018407][ T224] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 44.031576][ T224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 44.043337][ T224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 44.051812][ T224] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 44.060120][ T224] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 44.068785][ T435] device veth0_vlan entered promiscuous mode [ 44.080435][ T224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 44.090264][ T435] device veth1_macvtap entered promiscuous mode [ 44.099624][ T224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 44.109677][ T224] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 44.143404][ T24] audit: type=1400 audit(1772872691.460:105): avc: denied { create } for pid=442 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bluetooth_socket permissive=1 [ 44.529291][ T24] audit: type=1401 audit(1772872691.850:106): op=setxattr invalid_context="u:object_r:app_data_file:s0:c512,c768" 2026/03/07 08:38:12 executed programs: 0 [ 44.669648][ T24] audit: type=1400 audit(1772872691.990:107): avc: denied { write } for pid=409 comm="syz-execprog" path="pipe:[15069]" dev="pipefs" ino=15069 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 44.715963][ T479] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.723135][ T479] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.730967][ T479] device bridge_slave_0 entered promiscuous mode [ 44.738368][ T479] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.745782][ T479] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.753509][ T479] device bridge_slave_1 entered promiscuous mode [ 44.782792][ T479] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.789943][ T479] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.797482][ T479] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.804498][ T479] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.820937][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.828562][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.835669][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.844682][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.853266][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.862085][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.869288][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.877887][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.886280][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.894717][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.901869][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.912447][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 44.920621][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 44.929955][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 44.938135][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 44.950974][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 44.959320][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 44.970446][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 44.978550][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 44.986534][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 44.994240][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.002435][ T479] device veth0_vlan entered promiscuous mode [ 45.011849][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 45.020254][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 45.034643][ T479] device veth1_macvtap entered promiscuous mode [ 45.043529][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 45.052017][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 45.060488][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 45.070748][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 45.079365][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 45.104825][ T24] audit: type=1400 audit(1772872692.420:108): avc: denied { create } for pid=483 comm="syz.2.16" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=tipc_socket permissive=1 [ 45.124394][ T24] audit: type=1400 audit(1772872692.440:109): avc: denied { write } for pid=483 comm="syz.2.16" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=tipc_socket permissive=1 [ 45.168514][ T24] audit: type=1400 audit(1772872692.490:110): avc: denied { setopt } for pid=483 comm="syz.2.16" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=tipc_socket permissive=1 [ 145.246888][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 145.253609][ C0] rcu: 0-...!: (1 GPs behind) idle=7c2/1/0x4000000000000000 softirq=2748/2749 fqs=37 last_accelerate: 9c2b/c33c dyntick_enabled: 1 [ 145.267394][ C0] (t=10000 jiffies g=1449 q=108) [ 145.272404][ C0] rcu: rcu_preempt kthread starved for 9924 jiffies! g1449 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 145.283746][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 145.293791][ C0] rcu: RCU grace-period kthread stack dump: [ 145.299660][ C0] task:rcu_preempt state:I stack: 0 pid: 13 ppid: 2 flags:0x00004000 [ 145.309079][ C0] Call Trace: [ 145.312401][ C0] __schedule+0xb53/0x1320 [ 145.316811][ C0] ? __sched_text_start+0x8/0x8 [ 145.321667][ C0] ? __mod_timer+0x7da/0xb50 [ 145.326246][ C0] schedule+0x13c/0x1d0 [ 145.330384][ C0] schedule_timeout+0x159/0x330 [ 145.335303][ C0] ? console_conditional_schedule+0x10/0x10 [ 145.341189][ C0] ? run_local_timers+0x160/0x160 [ 145.346364][ C0] ? prepare_to_swait_event+0x320/0x340 [ 145.351975][ C0] rcu_gp_kthread+0x1045/0x2730 [ 145.356804][ C0] ? dyntick_save_progress_counter+0x1b0/0x1b0 [ 145.363059][ C0] ? rcu_barrier_callback+0x50/0x50 [ 145.368497][ C0] ? __kasan_check_read+0x11/0x20 [ 145.373498][ C0] ? __kthread_parkme+0xb9/0x1c0 [ 145.378504][ C0] kthread+0x346/0x3d0 [ 145.382563][ C0] ? rcu_barrier_callback+0x50/0x50 [ 145.387745][ C0] ? kthread_blkcg+0xd0/0xd0 [ 145.392516][ C0] ret_from_fork+0x1f/0x30 [ 145.396944][ C0] NMI backtrace for cpu 0 [ 145.401257][ C0] CPU: 0 PID: 487 Comm: syz.2.17 Not tainted syzkaller #0 [ 145.408340][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 145.418470][ C0] Call Trace: [ 145.421772][ C0] [ 145.424638][ C0] __dump_stack+0x21/0x24 [ 145.429137][ C0] dump_stack_lvl+0x1a7/0x208 [ 145.434057][ C0] ? show_regs_print_info+0x18/0x18 [ 145.439458][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 145.444935][ C0] ? _raw_spin_lock+0xf0/0xf0 [ 145.449665][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 145.455741][ C0] dump_stack+0x15/0x1c [ 145.459883][ C0] nmi_trigger_cpumask_backtrace+0x27f/0x2c0 [ 145.465843][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 145.471901][ C0] rcu_dump_cpu_stacks+0x19c/0x2c0 [ 145.477071][ C0] rcu_sched_clock_irq+0xf88/0x1880 [ 145.482254][ C0] ? rcutree_dead_cpu+0x310/0x310 [ 145.487274][ C0] ? hrtimer_run_queues+0x166/0x430 [ 145.492488][ C0] update_process_times+0x198/0x200 [ 145.497666][ C0] tick_sched_timer+0x17c/0x240 [ 145.502532][ C0] ? tick_setup_sched_timer+0x450/0x450 [ 145.508161][ C0] __hrtimer_run_queues+0x380/0x970 [ 145.513357][ C0] ? hrtimer_interrupt+0xdc0/0xdc0 [ 145.518535][ C0] ? ktime_get_update_offsets_now+0x293/0x2b0 [ 145.524714][ C0] hrtimer_interrupt+0x3a6/0xdc0 [ 145.529800][ C0] ? do_sync_core+0x22/0x30 [ 145.534503][ C0] __sysvec_apic_timer_interrupt+0xfa/0x3f0 [ 145.540744][ C0] asm_call_irq_on_stack+0xf/0x20 [ 145.546001][ C0] [ 145.549125][ C0] sysvec_apic_timer_interrupt+0x85/0xe0 [ 145.554782][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 145.560931][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x36/0x60 [ 145.567167][ C0] Code: 20 b7 9d 7e 65 8b 15 25 b7 9d 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 dc 0a 00 00 00 74 2c 8b 91 b8 0a 00 00 <83> fa 02 75 21 48 8b 91 c0 0a 00 00 48 8b 32 48 8d 7e 01 8b 89 bc [ 145.587001][ C0] RSP: 0018:ffffc90000f66970 EFLAGS: 00000246 [ 145.593263][ C0] RAX: ffffffff8466ad1e RBX: 1ffff920001ecd3c RCX: ffff8881173362c0 [ 145.601216][ C0] RDX: 0000000000000000 RSI: ffffc90000f66c40 RDI: ffff888129986040 [ 145.609168][ C0] RBP: ffffc90000f66970 R08: ffff8881120f408b R09: 1ffff1102241e811 [ 145.617231][ C0] R10: dffffc0000000000 R11: ffffed102241e812 R12: ffffc90000f66ec0 [ 145.625325][ C0] R13: ffffc90000f66c40 R14: dffffc0000000000 R15: ffffc90000f66c40 [ 145.633481][ C0] ? tipc_node_distr_xmit+0xae/0x3b0 [ 145.638847][ C0] tipc_node_distr_xmit+0xae/0x3b0 [ 145.644084][ C0] ? tipc_sk_lookup+0x544/0x5f0 [ 145.648938][ C0] ? tipc_sk_rcv+0x37a/0x1dc0 [ 145.653606][ C0] ? tipc_node_xmit_skb+0x150/0x150 [ 145.658784][ C0] ? _raw_spin_trylock_bh+0xe5/0x150 [ 145.664391][ C0] ? _raw_spin_trylock+0x150/0x150 [ 145.669614][ C0] ? tipc_sk_rcv+0x193c/0x1dc0 [ 145.674368][ C0] tipc_sk_rcv+0x18ed/0x1dc0 [ 145.678937][ C0] ? __stack_depot_save+0x47d/0x4c0 [ 145.684147][ C0] ? kasan_set_track+0x5b/0x70 [ 145.688989][ C0] ? kasan_set_track+0x4a/0x70 [ 145.693747][ C0] ? ____kasan_slab_free+0x125/0x160 [ 145.699198][ C0] ? __kasan_slab_free+0x11/0x20 [ 145.704204][ C0] ? slab_free_freelist_hook+0xc5/0x190 [ 145.709728][ C0] ? kmem_cache_free+0x100/0x2d0 [ 145.714736][ C0] ? kfree_skbmem+0x10c/0x180 [ 145.719502][ C0] ? kfree_skb+0xc1/0x2f0 [ 145.723823][ C0] ? tipc_msg_reverse+0x698/0x900 [ 145.728988][ C0] ? tipc_node_xmit+0x26c/0xd80 [ 145.733922][ C0] ? tipc_sk_filter_rcv+0x15e5/0x3910 [ 145.739377][ C0] ? tipc_sk_rcv+0x742/0x1dc0 [ 145.744051][ C0] ? tipc_node_xmit+0x26c/0xd80 [ 145.748987][ C0] ? exit_to_user_mode_prepare+0x76/0xa0 [ 145.754771][ C0] ? syscall_exit_to_user_mode+0x1d/0x40 [ 145.760741][ C0] ? do_syscall_64+0x3d/0x40 [ 145.765312][ C0] ? __skb_queue_purge+0x170/0x170 [ 145.770413][ C0] tipc_node_xmit+0x26c/0xd80 [ 145.775082][ C0] ? kmem_cache_free+0x100/0x2d0 [ 145.780032][ C0] ? ____kasan_slab_free+0x130/0x160 [ 145.785311][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 145.790933][ C0] ? slab_free_freelist_hook+0xc5/0x190 [ 145.796455][ C0] ? kfree_skbmem+0x10c/0x180 [ 145.801110][ C0] ? kmem_cache_free+0x100/0x2d0 [ 145.806039][ C0] tipc_node_xmit_skb+0xf7/0x150 [ 145.811092][ C0] ? kfree_skb+0xc1/0x2f0 [ 145.815401][ C0] ? __skb_queue_purge+0x170/0x170 [ 145.820719][ C0] ? trace_tipc_sk_rej_msg+0x2c/0x6d0 [ 145.826082][ C0] tipc_sk_rcv+0x1c46/0x1dc0 [ 145.830789][ C0] ? set_next_entity+0xb4/0x5d0 [ 145.835854][ C0] ? compat_start_thread+0x80/0x80 [ 145.841220][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 145.846505][ C0] ? finish_task_switch+0x12e/0x5a0 [ 145.851727][ C0] ? __skb_queue_purge+0x170/0x170 [ 145.856983][ C0] ? __switch_to_asm+0x34/0x60 [ 145.861902][ C0] ? __schedule+0xb5b/0x1320 [ 145.866756][ C0] tipc_node_xmit+0x26c/0xd80 [ 145.871473][ C0] ? __kasan_check_read+0x11/0x20 [ 145.876503][ C0] ? preempt_schedule_irq+0xca/0x120 [ 145.882017][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 145.887747][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 145.893295][ C0] ? _raw_spin_lock+0xf0/0xf0 [ 145.897990][ C0] tipc_sk_filter_rcv+0x15e5/0x3910 [ 145.903392][ C0] ? tipc_sk_dump+0xfc0/0xfc0 [ 145.908152][ C0] ? __kasan_check_write+0x14/0x20 [ 145.913387][ C0] ? _raw_spin_lock_bh+0x94/0xf0 [ 145.918412][ C0] tipc_sk_rcv+0x742/0x1dc0 [ 145.922908][ C0] ? kfree_skbmem+0x10c/0x180 [ 145.927593][ C0] ? __skb_queue_purge+0x170/0x170 [ 145.932699][ C0] ? tipc_sk_filter_rcv+0x30d7/0x3910 [ 145.938321][ C0] ? ____fput+0x15/0x20 [ 145.942457][ C0] ? task_work_run+0x127/0x190 [ 145.947206][ C0] tipc_node_xmit+0x26c/0xd80 [ 145.951890][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 145.957450][ C0] tipc_node_distr_xmit+0x2a3/0x3b0 [ 145.963389][ C0] ? tipc_node_xmit_skb+0x150/0x150 [ 145.968755][ C0] tipc_sk_backlog_rcv+0x17d/0x210 [ 145.973951][ C0] ? tipc_sk_timeout+0x990/0x990 [ 145.979045][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 145.984485][ C0] __release_sock+0x146/0x360 [ 145.989217][ C0] ? _raw_write_lock_irq+0xf0/0xf0 [ 145.994505][ C0] release_sock+0x60/0x1b0 [ 145.998929][ C0] tipc_release+0xbd4/0x1490 [ 146.003683][ C0] ? down_read_killable+0xe0/0xe0 [ 146.009039][ C0] sock_close+0xe0/0x270 [ 146.013434][ C0] ? sock_mmap+0xa0/0xa0 [ 146.017866][ C0] __fput+0x2fb/0x770 [ 146.022132][ C0] ____fput+0x15/0x20 [ 146.026103][ C0] task_work_run+0x127/0x190 [ 146.030795][ C0] exit_to_user_mode_loop+0xcb/0xe0 [ 146.035987][ C0] exit_to_user_mode_prepare+0x76/0xa0 [ 146.041731][ C0] syscall_exit_to_user_mode+0x1d/0x40 [ 146.047196][ C0] do_syscall_64+0x3d/0x40 [ 146.051635][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 146.057624][ C0] RIP: 0033:0x7f83043fe0b9 [ 146.062126][ 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 [ 146.082097][ C0] RSP: 002b:00007f8303e64028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 146.090674][ C0] RAX: 00000000000203a0 RBX: 00007f830462afa0 RCX: 00007f83043fe0b9 [ 146.098716][ C0] RDX: 0000000000000000 RSI: 00002000000003c0 RDI: 0000000000000003 [ 146.106758][ C0] RBP: 00007f83044909c4 R08: 0000000000000000 R09: 0000000000000000 [ 146.114875][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 146.122858][ C0] R13: 0000000000000000 R14: 00007f830462afa0 R15: 00007ffd50693848 [ 198.998057][ C1] watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.2.17:486] [ 199.006075][ C1] Modules linked in: [ 199.010130][ C1] CPU: 1 PID: 486 Comm: syz.2.17 Not tainted syzkaller #0 [ 199.017416][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 199.027502][ C1] RIP: 0010:kvm_wait+0xce/0x130 [ 199.032448][ 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 [ 199.052563][ C1] RSP: 0018:ffffc90000f479a0 EFLAGS: 00000246 [ 199.059604][ C1] RAX: 0000000000000003 RBX: ffff8881120f4088 RCX: ffffffff814bed9a [ 199.067933][ C1] RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff8881120f4088 [ 199.075939][ C1] RBP: ffffc90000f47a50 R08: ffff8881120f4088 R09: 1ffff1102241e811 [ 199.083916][ C1] R10: dffffc0000000000 R11: ffffed102241e812 R12: 0000000000000246 [ 199.092256][ C1] R13: 1ffff1102241e811 R14: dffffc0000000000 R15: 1ffff920001e8f38 [ 199.100425][ C1] FS: 00005555754a7500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 199.109885][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 199.116549][ C1] CR2: 00003bd43ffa8000 CR3: 000000011741f000 CR4: 00000000003506a0 [ 199.125177][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 199.133178][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 199.141338][ C1] Call Trace: [ 199.144629][ C1] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 199.150814][ C1] ? kvm_arch_para_hints+0x30/0x30 [ 199.156311][ C1] __pv_queued_spin_lock_slowpath+0x714/0xb70 [ 199.162684][ C1] ? __pv_queued_spin_unlock_slowpath+0x280/0x280 [ 199.169186][ C1] ? kasan_save_stack+0x49/0x60 [ 199.174140][ C1] ? __kasan_record_aux_stack+0xd2/0x100 [ 199.179889][ C1] ? kasan_record_aux_stack+0xe/0x10 [ 199.185452][ C1] ? task_work_add+0x27/0x1e0 [ 199.190436][ C1] ? fput+0x1a/0x20 [ 199.194341][ C1] ? filp_close+0x105/0x150 [ 199.199419][ C1] ? __close_range+0x1f4/0x450 [ 199.204189][ C1] ? __x64_sys_close_range+0x7a/0x90 [ 199.209795][ C1] queued_spin_lock_slowpath+0x47/0x50 [ 199.215589][ C1] _raw_spin_lock_bh+0xe4/0xf0 [ 199.220369][ C1] ? _raw_spin_lock_irq+0xf0/0xf0 [ 199.225403][ C1] lock_sock_nested+0x90/0x2a0 [ 199.230253][ C1] ? sock_init_data+0xc0/0xc0 [ 199.235205][ C1] ? fsnotify+0x19ab/0x1a70 [ 199.240296][ C1] tipc_release+0x56/0x1490 [ 199.245258][ C1] ? down_read_killable+0xe0/0xe0 [ 199.250452][ C1] sock_close+0xe0/0x270 [ 199.254938][ C1] ? sock_mmap+0xa0/0xa0 [ 199.259270][ C1] __fput+0x2fb/0x770 [ 199.263261][ C1] ____fput+0x15/0x20 [ 199.267356][ C1] task_work_run+0x127/0x190 [ 199.272188][ C1] exit_to_user_mode_loop+0xcb/0xe0 [ 199.277424][ C1] exit_to_user_mode_prepare+0x76/0xa0 [ 199.283014][ C1] syscall_exit_to_user_mode+0x1d/0x40 [ 199.288568][ C1] do_syscall_64+0x3d/0x40 [ 199.293333][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 199.299341][ C1] RIP: 0033:0x7f83043fe0b9 [ 199.303848][ 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 [ 199.323885][ C1] RSP: 002b:00007ffd506939a8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 199.332577][ C1] RAX: 0000000000000000 RBX: 00007f830462cba0 RCX: 00007f83043fe0b9 [ 199.340550][ C1] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 199.348621][ C1] RBP: 00007f830462cba0 R08: 0000000000000006 R09: 0000000000000000 [ 199.356901][ C1] R10: 00007f830462cac0 R11: 0000000000000246 R12: 000000000000b3ae [ 199.365398][ C1] R13: 00007f830462b08c R14: 000000000000b0d3 R15: 00007f830462b080 [ 199.373762][ C1] Sending NMI from CPU 1 to CPUs 0: [ 199.380413][ C0] NMI backtrace for cpu 0 [ 199.380419][ C0] CPU: 0 PID: 487 Comm: syz.2.17 Not tainted syzkaller #0 [ 199.380423][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 199.380427][ C0] RIP: 0010:preempt_count_sub+0xf7/0x170 [ 199.380435][ C0] Code: 00 75 96 48 c7 c7 a0 0f e8 84 48 c7 c6 80 10 e8 84 e8 dd fa 34 03 0f 0b e9 7c ff ff ff 48 c7 c1 c0 08 e8 86 80 e1 07 80 c1 03 <38> c1 0f 8c 29 ff ff ff 41 89 fe 48 c7 c7 c0 08 e8 86 e8 52 64 5a [ 199.380439][ C0] RSP: 0018:ffffc90000f66a58 EFLAGS: 00000206 [ 199.380446][ C0] RAX: 0000000000000004 RBX: dffffc0000000000 RCX: ffffffff86e80803 [ 199.380450][ C0] RDX: 0000000000000000 RSI: 0000000000000201 RDI: 0000000000000001 [ 199.380454][ C0] RBP: ffffc90000f66a68 R08: 0000000000000003 R09: 0000000000000004 [ 199.380458][ C0] R10: dffffc0000000000 R11: fffff520001ecd44 R12: ffffc90000f66ec0 [ 199.380462][ C0] R13: ffff8881120f4001 R14: 00000000ad92ae92 R15: 00000000ad92ae92 [ 199.380467][ C0] FS: 00007f8303e646c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 199.380470][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 199.380474][ C0] CR2: 00007f8303e42ff8 CR3: 000000011741f000 CR4: 00000000003506b0 [ 199.380478][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 199.380482][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 199.380485][ C0] Call Trace: [ 199.380488][ C0] __local_bh_enable_ip+0x53/0x80 [ 199.380491][ C0] _raw_spin_unlock_bh+0x51/0x60 [ 199.380493][ C0] tipc_sk_rcv+0x33d/0x1dc0 [ 199.380497][ C0] ? __stack_depot_save+0x47d/0x4c0 [ 199.380500][ C0] ? kasan_set_track+0x5b/0x70 [ 199.380502][ C0] ? kasan_set_track+0x4a/0x70 [ 199.380505][ C0] ? ____kasan_slab_free+0x125/0x160 [ 199.380508][ C0] ? __kasan_slab_free+0x11/0x20 [ 199.380512][ C0] ? slab_free_freelist_hook+0xc5/0x190 [ 199.380514][ C0] ? kmem_cache_free+0x100/0x2d0 [ 199.380517][ C0] ? kfree_skbmem+0x10c/0x180 [ 199.380520][ C0] ? kfree_skb+0xc1/0x2f0 [ 199.380523][ C0] ? tipc_msg_reverse+0x698/0x900 [ 199.380526][ C0] ? tipc_node_xmit+0x26c/0xd80 [ 199.380529][ C0] ? tipc_sk_filter_rcv+0x15e5/0x3910 [ 199.380532][ C0] ? tipc_sk_rcv+0x742/0x1dc0 [ 199.380535][ C0] ? tipc_node_xmit+0x26c/0xd80 [ 199.380538][ C0] ? exit_to_user_mode_prepare+0x76/0xa0 [ 199.380541][ C0] ? syscall_exit_to_user_mode+0x1d/0x40 [ 199.380544][ C0] ? do_syscall_64+0x3d/0x40 [ 199.380547][ C0] ? __skb_queue_purge+0x170/0x170 [ 199.380550][ C0] tipc_node_xmit+0x26c/0xd80 [ 199.380553][ C0] ? kmem_cache_free+0x100/0x2d0 [ 199.380556][ C0] ? ____kasan_slab_free+0x130/0x160 [ 199.380559][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 199.380562][ C0] ? slab_free_freelist_hook+0xc5/0x190 [ 199.380565][ C0] ? kfree_skbmem+0x10c/0x180 [ 199.380568][ C0] ? kmem_cache_free+0x100/0x2d0 [ 199.380571][ C0] tipc_node_xmit_skb+0xf7/0x150 [ 199.380574][ C0] ? kfree_skb+0xc1/0x2f0 [ 199.380577][ C0] ? __skb_queue_purge+0x170/0x170 [ 199.380580][ C0] ? trace_tipc_sk_rej_msg+0x2c/0x6d0 [ 199.380583][ C0] tipc_sk_rcv+0x1c46/0x1dc0 [ 199.380585][ C0] ? set_next_entity+0xb4/0x5d0 [ 199.380588][ C0] ? compat_start_thread+0x80/0x80 [ 199.380592][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 199.380595][ C0] ? finish_task_switch+0x12e/0x5a0 [ 199.380598][ C0] ? __skb_queue_purge+0x170/0x170 [ 199.380601][ C0] ? __switch_to_asm+0x34/0x60 [ 199.380603][ C0] ? __schedule+0xb5b/0x1320 [ 199.380606][ C0] tipc_node_xmit+0x26c/0xd80 [ 199.380609][ C0] ? __kasan_check_read+0x11/0x20 [ 199.380612][ C0] ? preempt_schedule_irq+0xca/0x120 [ 199.380615][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 199.380619][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 199.380621][ C0] ? _raw_spin_lock+0xf0/0xf0 [ 199.380624][ C0] tipc_sk_filter_rcv+0x15e5/0x3910 [ 199.380627][ C0] ? tipc_sk_dump+0xfc0/0xfc0 [ 199.380630][ C0] ? __kasan_check_write+0x14/0x20 [ 199.380633][ C0] ? _raw_spin_lock_bh+0x94/0xf0 [ 199.380636][ C0] tipc_sk_rcv+0x742/0x1dc0 [ 199.380639][ C0] ? kfree_skbmem+0x10c/0x180 [ 199.380642][ C0] ? __skb_queue_purge+0x170/0x170 [ 199.380645][ C0] ? tipc_sk_filter_rcv+0x30d7/0x3910 [ 199.380648][ C0] ? ____fput+0x15/0x20 [ 199.380650][ C0] ? task_work_run+0x127/0x190 [ 199.380653][ C0] tipc_node_xmit+0x26c/0xd80 [ 199.380656][ C0] ? tipc_node_get_linkname+0x1a0/0x1a0 [ 199.380660][ C0] tipc_node_distr_xmit+0x2a3/0x3b0 [ 199.380663][ C0] ? tipc_node_xmit_skb+0x150/0x150 [ 199.380666][ C0] tipc_sk_backlog_rcv+0x17d/0x210 [ 199.380668][ C0] ? tipc_sk_timeout+0x990/0x990 [ 199.380672][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 199.380674][ C0] __release_sock+0x146/0x360 [ 199.380677][ C0] ? _raw_write_lock_irq+0xf0/0xf0 [ 199.380679][ C0] release_sock+0x60/0x1b0 [ 199.380682][ C0] tipc_release+0xbd4/0x1490 [ 199.380684][ C0] ? down_read_killable+0xe0/0xe0 [ 199.380687][ C0] sock_close+0xe0/0x270 [ 199.380689][ C0] ? sock_mmap+0xa0/0xa0 [ 199.380691][ C0] __fput+0x2fb/0x770 [ 199.380693][ C0] ____fput+0x15/0x20 [ 199.380696][ C0] task_work_run+0x127/0x190 [ 199.380698][ C0] exit_to_user_mode_loop+0xcb/0xe0 [ 199.380701][ C0] exit_to_user_mode_prepare+0x76/0xa0 [ 199.380704][ C0] syscall_exit_to_user_mode+0x1d/0x40 [ 199.380706][ C0] do_syscall_64+0x3d/0x40 [ 199.380709][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 199.380712][ C0] RIP: 0033:0x7f83043fe0b9 [ 199.380719][ 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 [ 199.380722][ C0] RSP: 002b:00007f8303e64028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 199.380729][ C0] RAX: 00000000000203a0 RBX: 00007f830462afa0 RCX: 00007f83043fe0b9 [ 199.380733][ C0] RDX: 0000000000000000 RSI: 00002000000003c0 RDI: 0000000000000003 [ 199.380736][ C0] RBP: 00007f83044909c4 R08: 0000000000000000 R09: 0000000000000000 [ 199.380740][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 199.380743][ C0] R13: 0000000000000000 R14: 00007f830462afa0 R15: 00007ffd50693848