Warning: Permanently added '10.128.1.35' (ED25519) to the list of known hosts.
[ 132.247286][ T5639] bridge0: port 1(bridge_slave_0) entered blocking state
[ 132.248611][ T5639] bridge0: port 1(bridge_slave_0) entered disabled state
[ 132.249425][ T5639] bridge_slave_0: entered allmulticast mode
[ 132.251314][ T5639] bridge_slave_0: entered promiscuous mode
[ 132.261383][ T5639] bridge0: port 2(bridge_slave_1) entered blocking state
[ 132.261810][ T5639] bridge0: port 2(bridge_slave_1) entered disabled state
[ 132.262073][ T5639] bridge_slave_1: entered allmulticast mode
[ 132.266654][ T5639] bridge_slave_1: entered promiscuous mode
[ 132.319586][ T5639] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 132.323255][ T5639] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 132.366415][ T5639] team0: Port device team_slave_0 added
[ 132.369425][ T5639] team0: Port device team_slave_1 added
[ 132.401128][ T5639] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 132.401139][ T5639] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 132.401152][ T5639] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 132.405092][ T5639] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 132.405107][ T5639] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 132.405129][ T5639] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 132.495144][ T5639] hsr_slave_0: entered promiscuous mode
[ 132.497248][ T5639] hsr_slave_1: entered promiscuous mode
[ 132.714376][ T5639] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 132.761374][ T5639] 8021q: adding VLAN 0 to HW filter on device netdevsim0
[ 132.762968][ T5639] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 132.794669][ T5639] 8021q: adding VLAN 0 to HW filter on device netdevsim1
[ 132.795594][ T5639] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 132.829353][ T5639] 8021q: adding VLAN 0 to HW filter on device netdevsim2
[ 132.830644][ T5639] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 132.851246][ T5639] 8021q: adding VLAN 0 to HW filter on device netdevsim3
[ 132.901581][ T5639] bridge0: port 2(bridge_slave_1) entered blocking state
[ 132.902271][ T5639] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 132.902917][ T5639] bridge0: port 1(bridge_slave_0) entered blocking state
[ 132.903018][ T5639] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 133.017459][ T5639] 8021q: adding VLAN 0 to HW filter on device bond0
[ 133.088186][ T4374] bridge0: port 1(bridge_slave_0) entered disabled state
[ 133.124286][ T4374] bridge0: port 2(bridge_slave_1) entered disabled state
[ 133.300929][ T5639] 8021q: adding VLAN 0 to HW filter on device team0
[ 133.325488][ T4374] bridge0: port 1(bridge_slave_0) entered blocking state
[ 133.325638][ T4374] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 133.365301][ T12] bridge0: port 2(bridge_slave_1) entered blocking state
[ 133.365769][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 133.662331][ T5639] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 133.744476][ T5639] veth0_vlan: entered promiscuous mode
[ 133.761104][ T5639] veth1_vlan: entered promiscuous mode
[ 133.827934][ T5639] veth0_macvtap: entered promiscuous mode
[ 133.837723][ T5639] veth1_macvtap: entered promiscuous mode
[ 133.871593][ T5639] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 133.895692][ T5639] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 133.920481][ T44] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 133.930087][ T44] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 133.930136][ T44] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 133.930170][ T44] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
executing program
[ 139.173746][ C1] sched: DL replenish lagged too much
[ 239.283686][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 239.283716][ C1] rcu: 1-....: (1 GPs behind) idle=0804/1/0x4000000000000000 softirq=0/0 fqs=5250 rcuc=10504 jiffies(starved)
[ 239.283744][ C1] rcu: hardirqs softirqs csw/system
[ 239.283752][ C1] rcu: number: 827188 1632488 8458
[ 239.283762][ C1] rcu: cputime: 1150 50037 1278 ==> 52490(ms)
[ 239.283770][ C1] rcu: (t=10501 jiffies g=11869 q=1855 ncpus=2)
[ 239.283806][ C1] CPU: 1 UID: 0 PID: 30 Comm: ktimers/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 239.283830][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 239.283846][ C1] RIP: 0010:lock_acquire+0x221/0x350
[ 239.283864][ C1] Code: ff ff ff e8 01 12 8f 09 f7 44 24 08 00 02 00 00 0f 84 3a ff ff ff 65 48 8b 05 3b 7c d4 10 48 3b 44 24 58 75 33 fb 48 83 c4 60 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d b8 7c ef
[ 239.283873][ C1] RSP: 0018:ffffc90000a4f9e0 EFLAGS: 00000282
[ 239.283887][ C1] RAX: 05bc23543a751f00 RBX: 0000000000000000 RCX: 0000000000000046
[ 239.283893][ C1] RDX: 00000000ef863900 RSI: ffffffff8d8af3ac RDI: ffffffff8baa2680
[ 239.283900][ C1] RBP: ffffffff8940d0fa R08: ffffffff8940d0fa R09: ffff8880355ea400
[ 239.283907][ C1] R10: dffffc0000000000 R11: ffffffff8940d040 R12: 0000000000000000
[ 239.283913][ C1] R13: ffff8880355ea400 R14: 0000000000000001 R15: 0000000000000246
[ 239.283919][ C1] FS: 0000000000000000(0000) GS:ffff888125fcd000(0000) knlGS:0000000000000000
[ 239.283927][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 239.283933][ C1] CR2: 00002000000012c0 CR3: 00000000333e8000 CR4: 00000000003526f0
[ 239.283942][ C1] Call Trace:
[ 239.283951][ C1]
[ 239.283956][ C1] ? __pfx_advance_sched+0x10/0x10
[ 239.283969][ C1] rt_spin_lock+0x83/0x400
[ 239.283982][ C1] ? advance_sched+0xba/0xc20
[ 239.283993][ C1] ? __pfx_rt_spin_lock+0x10/0x10
[ 239.284003][ C1] ? do_raw_spin_lock+0x12b/0x2f0
[ 239.284013][ C1] ? lock_acquire+0x106/0x350
[ 239.284025][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 239.284035][ C1] ? do_raw_spin_unlock+0xf5/0x210
[ 239.284045][ C1] ? __pfx_advance_sched+0x10/0x10
[ 239.284056][ C1] advance_sched+0xba/0xc20
[ 239.284071][ C1] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 239.284085][ C1] ? __pfx_advance_sched+0x10/0x10
[ 239.284096][ C1] __hrtimer_run_queues+0x405/0xb10
[ 239.284115][ C1] hrtimer_run_softirq+0x18f/0x260
[ 239.284129][ C1] handle_softirqs+0x1de/0x6d0
[ 239.284143][ C1] ? smpboot_thread_fn+0x4d/0xa50
[ 239.284153][ C1] run_ktimerd+0x69/0x100
[ 239.284163][ C1] smpboot_thread_fn+0x541/0xa50
[ 239.284174][ C1] ? smpboot_thread_fn+0x4d/0xa50
[ 239.284188][ C1] kthread+0x388/0x470
[ 239.284200][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10
[ 239.284209][ C1] ? __pfx_kthread+0x10/0x10
[ 239.284221][ C1] ret_from_fork+0x514/0xb70
[ 239.284235][ C1] ? __pfx_ret_from_fork+0x10/0x10
[ 239.284247][ C1] ? __switch_to+0xc79/0x1410
[ 239.284259][ C1] ? __pfx_kthread+0x10/0x10
[ 239.284271][ C1] ret_from_fork_asm+0x1a/0x30
[ 239.284292][ C1]
[ 286.553833][ T39] INFO: task kworker/u8:2:44 blocked for more than 143 seconds.
[ 286.553862][ T39] Not tainted syzkaller #0
[ 286.553872][ T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 286.553881][ T39] task:kworker/u8:2 state:D stack:21952 pid:44 tgid:44 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 286.553949][ T39] Workqueue: ipv6_addrconf addrconf_dad_work
[ 286.553982][ T39] Call Trace:
[ 286.553990][ T39]
[ 286.554004][ T39] __schedule+0x16f9/0x5500
[ 286.554051][ T39] ? arch_scale_cpu_capacity+0x18/0xb0
[ 286.554093][ T39] ? __pfx___schedule+0x10/0x10
[ 286.554117][ T39] ? rt_mutex_slowlock_block+0x2e9/0x680
[ 286.554157][ T39] rt_mutex_schedule+0x76/0xf0
[ 286.554185][ T39] rt_mutex_slowlock_block+0x508/0x680
[ 286.554222][ T39] ? rt_mutex_slowlock_block+0x2e9/0x680
[ 286.554248][ T39] rt_mutex_slowlock+0x2dc/0x780
[ 286.554274][ T39] ? rt_mutex_slowlock+0x1fd/0x780
[ 286.554299][ T39] ? __pfx_rt_mutex_slowlock+0x10/0x10
[ 286.554334][ T39] ? addrconf_dad_work+0x124/0x1680
[ 286.554363][ T39] ? addrconf_dad_work+0x124/0x1680
[ 286.554393][ T39] ? addrconf_dad_work+0x124/0x1680
[ 286.554417][ T39] mutex_lock_nested+0x168/0x1d0
[ 286.554445][ T39] addrconf_dad_work+0x124/0x1680
[ 286.554477][ T39] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 286.554511][ T39] ? __pfx_addrconf_dad_work+0x10/0x10
[ 286.554536][ T39] ? process_one_work+0x8be/0x1630
[ 286.554578][ T39] ? process_one_work+0x8be/0x1630
[ 286.554605][ T39] process_one_work+0x98b/0x1630
[ 286.554655][ T39] ? __pfx_process_one_work+0x10/0x10
[ 286.554682][ T39] ? do_raw_spin_lock+0x12b/0x2f0
[ 286.554720][ T39] worker_thread+0xb49/0x1140
[ 286.554765][ T39] kthread+0x388/0x470
[ 286.554789][ T39] ? __pfx_worker_thread+0x10/0x10
[ 286.554807][ T39] ? __pfx_kthread+0x10/0x10
[ 286.554831][ T39] ret_from_fork+0x514/0xb70
[ 286.554860][ T39] ? __pfx_ret_from_fork+0x10/0x10
[ 286.554885][ T39] ? __switch_to+0xc79/0x1410
[ 286.554909][ T39] ? __pfx_kthread+0x10/0x10
[ 286.554934][ T39] ret_from_fork_asm+0x1a/0x30
[ 286.554978][ T39]
[ 286.555031][ T39] INFO: task kworker/u8:8:1170 blocked for more than 143 seconds.
[ 286.555045][ T39] Not tainted syzkaller #0
[ 286.555055][ T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 286.555063][ T39] task:kworker/u8:8 state:D stack:20960 pid:1170 tgid:1170 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 286.555119][ T39] Workqueue: events_unbound linkwatch_event
[ 286.555140][ T39] Call Trace:
[ 286.555146][ T39]
[ 286.555158][ T39] __schedule+0x16f9/0x5500
[ 286.555214][ T39] ? __pfx___schedule+0x10/0x10
[ 286.555256][ T39] rt_mutex_schedule+0x76/0xf0
[ 286.555284][ T39] rt_mutex_slowlock_block+0x508/0x680
[ 286.555325][ T39] rt_mutex_slowlock+0x2dc/0x780
[ 286.555350][ T39] ? rt_mutex_slowlock+0x1fd/0x780
[ 286.555375][ T39] ? __pfx_rt_mutex_slowlock+0x10/0x10
[ 286.555409][ T39] ? linkwatch_event+0xe/0x60
[ 286.555433][ T39] ? process_one_work+0x8be/0x1630
[ 286.555469][ T39] ? linkwatch_event+0xe/0x60
[ 286.555487][ T39] mutex_lock_nested+0x168/0x1d0
[ 286.555520][ T39] ? process_one_work+0x8be/0x1630
[ 286.555548][ T39] linkwatch_event+0xe/0x60
[ 286.555567][ T39] process_one_work+0x98b/0x1630
[ 286.555617][ T39] ? __pfx_process_one_work+0x10/0x10
[ 286.555644][ T39] ? do_raw_spin_lock+0x12b/0x2f0
[ 286.555682][ T39] worker_thread+0xb49/0x1140
[ 286.555726][ T39] kthread+0x388/0x470
[ 286.555750][ T39] ? __pfx_worker_thread+0x10/0x10
[ 286.555767][ T39] ? __pfx_kthread+0x10/0x10
[ 286.555792][ T39] ret_from_fork+0x514/0xb70
[ 286.555820][ T39] ? __pfx_ret_from_fork+0x10/0x10
[ 286.555845][ T39] ? __switch_to+0xc79/0x1410
[ 286.555869][ T39] ? __pfx_kthread+0x10/0x10
[ 286.555894][ T39] ret_from_fork_asm+0x1a/0x30
[ 286.555937][ T39]
[ 286.556028][ T39] INFO: task syz-executor378:5669 blocked for more than 143 seconds.
[ 286.556042][ T39] Not tainted syzkaller #0
[ 286.556051][ T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 286.556059][ T39] task:syz-executor378 state:D stack:25376 pid:5669 tgid:5669 ppid:5639 task_flags:0x400140 flags:0x00080002
[ 286.556119][ T39] Call Trace:
[ 286.556125][ T39]
[ 286.556136][ T39] __schedule+0x16f9/0x5500
[ 286.556177][ T39] ? __bfs+0x153/0x290
[ 286.556215][ T39] ? __pfx___schedule+0x10/0x10
[ 286.556252][ T39] ? schedule+0x90/0x360
[ 286.556281][ T39] schedule+0x164/0x360
[ 286.556310][ T39] schedule_timeout+0xc3/0x2c0
[ 286.556340][ T39] ? __pfx_schedule_timeout+0x10/0x10
[ 286.556367][ T39] ? do_raw_spin_lock+0x12b/0x2f0
[ 286.556398][ T39] ? _raw_spin_unlock_irq+0x23/0x50
[ 286.556425][ T39] ? wait_for_completion+0x274/0x5e0
[ 286.556455][ T39] wait_for_completion+0x2cc/0x5e0
[ 286.556501][ T39] ? __pfx_wait_for_completion+0x10/0x10
[ 286.556531][ T39] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 286.556560][ T39] ? lockdep_hardirqs_on+0x7a/0x110
[ 286.556589][ T39] ? _raw_spin_unlock_irqrestore+0x4c/0x80
[ 286.556622][ T39] synchronize_rcu_normal+0x1c7/0x330
[ 286.556654][ T39] ? __pfx_synchronize_rcu_normal+0x10/0x10
[ 286.556709][ T39] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 286.556736][ T39] ? xfrm_dev_backlog+0x266/0x3f0
[ 286.556781][ T39] synchronize_rcu_expedited+0x15a/0x770
[ 286.556812][ T39] ? __pfx_sched_clock_cpu+0x10/0x10
[ 286.556844][ T39] ? __pfx_synchronize_rcu_expedited+0x10/0x10
[ 286.556873][ T39] ? net_tx_action+0x5b6/0xc30
[ 286.556922][ T39] ? lockdep_hardirqs_on+0x7a/0x110
[ 286.556949][ T39] ? synchronize_net+0xa/0x90
[ 286.556974][ T39] dev_deactivate_many+0x679/0xd40
[ 286.557009][ T39] ? dev_deactivate_many+0x24f/0xd40
[ 286.557043][ T39] dev_deactivate+0x139/0x1e0
[ 286.557072][ T39] ? __pfx_dev_deactivate+0x10/0x10
[ 286.557111][ T39] qdisc_graft+0x861/0x15d0
[ 286.557151][ T39] ? __pfx_qdisc_graft+0x10/0x10
[ 286.557175][ T39] ? trace_qdisc_create+0x83/0x200
[ 286.557202][ T39] ? qdisc_create+0xa51/0xf10
[ 286.557234][ T39] tc_modify_qdisc+0x18a4/0x2290
[ 286.557275][ T39] ? __pfx_tc_modify_qdisc+0x10/0x10
[ 286.557316][ T39] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 286.557355][ T39] ? __pfx_tc_modify_qdisc+0x10/0x10
[ 286.557378][ T39] rtnetlink_rcv_msg+0x77e/0xbe0
[ 286.557409][ T39] ? rtnetlink_rcv_msg+0x1b9/0xbe0
[ 286.557435][ T39] ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[ 286.557460][ T39] ? ref_tracker_free+0x673/0x820
[ 286.557483][ T39] ? __netlink_deliver_tap+0x636/0x8b0
[ 286.557509][ T39] ? netlink_deliver_tap+0x19c/0x1b0
[ 286.557526][ T39] ? netlink_unicast+0x754/0x920
[ 286.557551][ T39] ? netlink_sendmsg+0x813/0xb40
[ 286.557569][ T39] ? sock_sendmsg_nosec+0x13a/0x180
[ 286.557591][ T39] ? ____sys_sendmsg+0x55c/0x870
[ 286.557608][ T39] ? ___sys_sendmsg+0x2a5/0x360
[ 286.557624][ T39] ? __x64_sys_sendmsg+0x1c3/0x2a0
[ 286.557642][ T39] ? do_syscall_64+0x174/0x580
[ 286.557659][ T39] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 286.557688][ T39] netlink_rcv_skb+0x232/0x4b0
[ 286.557719][ T39] ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[ 286.557748][ T39] ? __pfx_netlink_rcv_skb+0x10/0x10
[ 286.557790][ T39] ? netlink_deliver_tap+0x2e/0x1b0
[ 286.557809][ T39] ? netlink_deliver_tap+0x2e/0x1b0
[ 286.557834][ T39] netlink_unicast+0x780/0x920
[ 286.557872][ T39] netlink_sendmsg+0x813/0xb40
[ 286.557902][ T39] ? __pfx_netlink_sendmsg+0x10/0x10
[ 286.557924][ T39] ? tomoyo_socket_sendmsg_permission+0x1e0/0x300
[ 286.557956][ T39] ? aa_sock_msg_perm+0x122/0x200
[ 286.557981][ T39] ? __pfx_netlink_sendmsg+0x10/0x10
[ 286.557999][ T39] sock_sendmsg_nosec+0x13a/0x180
[ 286.558027][ T39] ____sys_sendmsg+0x55c/0x870
[ 286.558051][ T39] ? __pfx_____sys_sendmsg+0x10/0x10
[ 286.558080][ T39] ? import_iovec+0x73/0xa0
[ 286.558111][ T39] ___sys_sendmsg+0x2a5/0x360
[ 286.558136][ T39] ? __pfx____sys_sendmsg+0x10/0x10
[ 286.558160][ T39] ? count_memcg_event_mm+0x21/0x260
[ 286.558216][ T39] ? __pfx_handle_mm_fault+0x10/0x10
[ 286.558247][ T39] __x64_sys_sendmsg+0x1c3/0x2a0
[ 286.558270][ T39] ? __pfx___x64_sys_sendmsg+0x10/0x10
[ 286.558301][ T39] ? do_user_addr_fault+0xc6f/0x1340
[ 286.558334][ T39] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 286.558355][ T39] do_syscall_64+0x174/0x580
[ 286.558372][ T39] ? trace_irq_disable+0x3b/0x140
[ 286.558396][ T39] ? clear_bhb_loop+0x40/0x90
[ 286.558421][ T39] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 286.558440][ T39] RIP: 0033:0x7fbe107e2b89
[ 286.558465][ T39] RSP: 002b:00007ffd8273d768 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 286.558484][ T39] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbe107e2b89
[ 286.558503][ T39] RDX: 0000000000000010 RSI: 00002000000012c0 RDI: 0000000000000004
[ 286.558516][ T39] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000001
[ 286.558528][ T39] R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffd8273d7c0
[ 286.558540][ T39] R13: 00007fbe1084e40a R14: 0000000000000003 R15: 00007ffd8273d7a0
[ 286.558571][ T39]
[ 286.558586][ T39]
[ 286.558586][ T39] Showing all locks held in the system:
[ 286.558594][ T39] 3 locks held by kworker/0:0/9:
[ 286.558604][ T39] #0: ffff88813fe4e538 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 286.558662][ T39] #1: ffffc900000e7c40 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 286.558715][ T39] #2: ffffffff8f38f7f8 (rtnl_mutex){+.+.}-{4:4}, at: reg_check_chans_work+0xab/0x10d0
[ 286.558773][ T39] 5 locks held by ktimers/1/30:
[ 286.558783][ T39] #0: ffffffff8de61400 (local_bh){.+.+}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420
[ 286.558827][ T39] #1: ffffffff8dfcaca0 (rcu_read_lock){....}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420
[ 286.558870][ T39] #2: ffff8880b87284b8 (&base->softirq_expiry_lock){+...}-{3:3}, at: hrtimer_run_softirq+0x7f/0x260
[ 286.558917][ T39] #3: ffffffff8dfcaca0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[ 286.558964][ T39] #4: ffff8880355ea400 (&q->current_entry_lock){+...}-{3:3}, at: __hrtimer_run_queues+0x4b1/0xb10
[ 286.559010][ T39] 1 lock held by khungtaskd/39:
[ 286.559021][ T39] #0: ffffffff8dfcaca0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 286.559075][ T39] 3 locks held by kworker/u8:2/44:
[ 286.559085][ T39] #0: ffff888032099138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 286.559139][ T39] #1: ffffc90000b67c40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 286.559193][ T39] #2: ffffffff8f38f7f8 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x124/0x1680
[ 286.559252][ T39] 3 locks held by kworker/u8:8/1170:
[ 286.559263][ T39] #0: ffff88813fe8c138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 286.559316][ T39] #1: ffffc90006057c40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 286.559370][ T39] #2: ffffffff8f38f7f8 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
[ 286.559428][ T39] 2 locks held by kworker/u8:15/4374:
[ 286.559438][ T39] #0: ffff88813fe8c138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 286.559492][ T39] #1: ffffc9000fc37c40 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 286.559554][ T39] 2 locks held by getty/5367:
[ 286.559564][ T39] #0: ffff8880360860a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 286.559617][ T39] #1: ffffc90003cc62e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x462/0x13a0
[ 286.559666][ T39] 1 lock held by syz-executor378/5669:
[ 286.559677][ T39] #0: ffffffff8f38f7f8 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x722/0xbe0
[ 286.559727][ T39] 1 lock held by dhcpcd/5670:
[ 286.559738][ T39] #0: ffff8880470b2358 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xe70
[ 286.559787][ T39] 1 lock held by dhcpcd/5671:
[ 286.559797][ T39] #0: ffff88803df78358 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xe70
[ 286.559844][ T39] 1 lock held by dhcpcd/5672:
[ 286.559854][ T39] #0: ffff8880257ea358 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xe70
[ 286.559902][ T39] 1 lock held by dhcpcd/5673:
[ 286.559912][ T39] #0: ffff88802589e358 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xe70
[ 286.559960][ T39] 1 lock held by dhcpcd/5674:
[ 286.559970][ T39] #0: ffff8880397bc358 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xe70
[ 286.560018][ T39] 1 lock held by dhcpcd/5675:
[ 286.560028][ T39] #0: ffff888025600358 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xe70
[ 286.560076][ T39]
[ 286.560081][ T39] =============================================
[ 286.560081][ T39]
[ 286.560096][ T39] NMI backtrace for cpu 0
[ 286.560109][ T39] CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 286.560129][ T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 286.560140][ T39] Call Trace:
[ 286.560147][ T39]
[ 286.560154][ T39] dump_stack_lvl+0xe8/0x150
[ 286.560180][ T39] nmi_cpu_backtrace+0x274/0x2d0
[ 286.560205][ T39] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 286.560232][ T39] nmi_trigger_cpumask_backtrace+0x17a/0x380
[ 286.560260][ T39] sys_info+0x135/0x170
[ 286.560280][ T39] watchdog+0xfd3/0x1030
[ 286.560309][ T39] ? watchdog+0x1c9/0x1030
[ 286.560337][ T39] kthread+0x388/0x470
[ 286.560360][ T39] ? __pfx_watchdog+0x10/0x10
[ 286.560380][ T39] ? __pfx_kthread+0x10/0x10
[ 286.560404][ T39] ret_from_fork+0x514/0xb70
[ 286.560431][ T39] ? __pfx_ret_from_fork+0x10/0x10
[ 286.560455][ T39] ? __switch_to+0xc79/0x1410
[ 286.560478][ T39] ? __pfx_kthread+0x10/0x10
[ 286.560508][ T39] ret_from_fork_asm+0x1a/0x30
[ 286.560549][ T39]
[ 286.560556][ T39] Sending NMI from CPU 0 to CPUs 1:
[ 286.560580][ C1] NMI backtrace for cpu 1
[ 286.560597][ C1] CPU: 1 UID: 0 PID: 30 Comm: ktimers/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 286.560637][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 286.560656][ C1] RIP: 0010:__lock_acquire+0xa54/0x2d10
[ 286.560687][ C1] Code: c7 c6 76 44 76 8d 67 48 0f b9 3a 90 31 c0 48 83 78 40 00 0f 84 7f 1d 00 00 41 8b 45 20 25 ff 1f 00 00 48 0f a3 05 5c 35 dc 11 <73> 10 48 69 c0 c8 00 00 00 48 8d 80 d0 f4 1d 93 eb 32 83 3d 63 c5
[ 286.560702][ C1] RSP: 0018:ffffc90000a4f820 EFLAGS: 00000003
[ 286.560716][ C1] RAX: 000000000000003b RBX: 0000000038ebeb42 RCX: 00000000e859cf28
[ 286.560728][ C1] RDX: 0000000002a9b450 RSI: 0000000061650717 RDI: ffff88801de91f00
[ 286.560740][ C1] RBP: 162a0c9600000000 R08: ffffffff8b321997 R09: ffff8880355ea3c0
[ 286.560752][ C1] R10: dffffc0000000000 R11: fffffbfff1f19f3f R12: ffff88801de92bc8
[ 286.560765][ C1] R13: ffff88801de92bc8 R14: ffff88801de91f00 R15: 0000000000000005
[ 286.560777][ C1] FS: 0000000000000000(0000) GS:ffff888125fcd000(0000) knlGS:0000000000000000
[ 286.560791][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 286.560803][ C1] CR2: 00002000000012c0 CR3: 00000000333e8000 CR4: 00000000003526f0
[ 286.560818][ C1] Call Trace:
[ 286.560824][ C1]
[ 286.560833][ C1] ? ktime_get+0x45/0x220
[ 286.560852][ C1] ? lock_acquire+0x106/0x350
[ 286.560875][ C1] ? __lock_acquire+0x6b5/0x2d10
[ 286.560897][ C1] ? rt_spin_lock+0x157/0x400
[ 286.560916][ C1] lock_acquire+0x106/0x350
[ 286.560935][ C1] ? rt_spin_lock+0x157/0x400
[ 286.560958][ C1] ? rcu_is_watching+0x15/0xb0
[ 286.560982][ C1] _raw_spin_lock_irqsave+0x40/0x60
[ 286.561013][ C1] ? rt_spin_lock+0x157/0x400
[ 286.561032][ C1] rt_spin_lock+0x157/0x400
[ 286.561052][ C1] ? __pfx_rt_spin_lock+0x10/0x10
[ 286.561071][ C1] ? do_raw_spin_lock+0x12b/0x2f0
[ 286.561089][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 286.561107][ C1] ? do_raw_spin_unlock+0xf5/0x210
[ 286.561124][ C1] ? __pfx_advance_sched+0x10/0x10
[ 286.561142][ C1] advance_sched+0xba/0xc20
[ 286.561163][ C1] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 286.561188][ C1] ? __pfx_advance_sched+0x10/0x10
[ 286.561206][ C1] __hrtimer_run_queues+0x405/0xb10
[ 286.561230][ C1] hrtimer_run_softirq+0x18f/0x260
[ 286.561250][ C1] handle_softirqs+0x1de/0x6d0
[ 286.561270][ C1] ? smpboot_thread_fn+0x4d/0xa50
[ 286.561286][ C1] run_ktimerd+0x69/0x100
[ 286.561305][ C1] smpboot_thread_fn+0x541/0xa50
[ 286.561322][ C1] ? smpboot_thread_fn+0x4d/0xa50
[ 286.561342][ C1] kthread+0x388/0x470
[ 286.561361][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10
[ 286.561378][ C1] ? __pfx_kthread+0x10/0x10
[ 286.561397][ C1] ret_from_fork+0x514/0xb70
[ 286.561419][ C1] ? __pfx_ret_from_fork+0x10/0x10
[ 286.561440][ C1] ? __switch_to+0xc79/0x1410
[ 286.561457][ C1] ? __pfx_kthread+0x10/0x10
[ 286.561477][ C1] ret_from_fork_asm+0x1a/0x30
[ 286.561506][ C1]
[ 286.561578][ T39] Kernel panic - not syncing: hung_task: blocked tasks
[ 286.561596][ T39] CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 286.561618][ T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 286.561628][ T39] Call Trace:
[ 286.561636][ T39]
[ 286.561643][ T39] vpanic+0x56c/0xa60
[ 286.561673][ T39] ? __pfx_vpanic+0x10/0x10
[ 286.561708][ T39] panic+0xc5/0xd0
[ 286.561732][ T39] ? __pfx_panic+0x10/0x10
[ 286.561756][ T39] ? __x2apic_send_IPI_mask+0x158/0x190
[ 286.561781][ T39] ? wq_watchdog_touch+0xf9/0x160
[ 286.561810][ T39] ? nmi_trigger_cpumask_backtrace+0x247/0x380
[ 286.561838][ T39] watchdog+0x102c/0x1030
[ 286.561868][ T39] ? watchdog+0x1c9/0x1030
[ 286.561896][ T39] kthread+0x388/0x470
[ 286.561920][ T39] ? __pfx_watchdog+0x10/0x10
[ 286.561940][ T39] ? __pfx_kthread+0x10/0x10
[ 286.561964][ T39] ret_from_fork+0x514/0xb70
[ 286.561992][ T39] ? __pfx_ret_from_fork+0x10/0x10
[ 286.562016][ T39] ? __switch_to+0xc79/0x1410
[ 286.562040][ T39] ? __pfx_kthread+0x10/0x10
[ 286.562064][ T39] ret_from_fork_asm+0x1a/0x30
[ 286.562105][ T39]
[ 286.562388][ T39] Kernel Offset: disabled