rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P14335 P14336/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=54105, q=7672 ncpus=2)
task:syz.8.2918      state:D stack:24664 pid:14336 tgid:14335 ppid:13254  task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5504 [inline]
 __schedule+0x16dc/0x5500 kernel/sched/core.c:7228
 __schedule_loop kernel/sched/core.c:7307 [inline]
 schedule_rtlock+0x30/0x70 kernel/sched/core.c:7386
 rtlock_slowlock_locked+0x35c5/0x3c20 kernel/locking/rtmutex.c:1895
 rtlock_slowlock kernel/locking/rtmutex.c:1922 [inline]
 rtlock_lock kernel/locking/spinlock_rt.c:43 [inline]
 __rt_spin_lock kernel/locking/spinlock_rt.c:49 [inline]
 rt_spin_lock+0x165/0x400 kernel/locking/spinlock_rt.c:57
 spin_lock_bh include/linux/spinlock_rt.h:90 [inline]
 lock_sock_nested+0x7e/0x130 net/core/sock.c:3844
 lock_sock include/net/sock.h:1713 [inline]
 tipc_sendstream+0x47/0x70 net/tipc/socket.c:1549
 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
 __sock_sendmsg net/socket.c:790 [inline]
 ____sys_sendmsg+0x565/0x870 net/socket.c:2684
 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2738
 __sys_sendmmsg+0x279/0x4d0 net/socket.c:2827
 __do_sys_sendmmsg net/socket.c:2854 [inline]
 __se_sys_sendmmsg net/socket.c:2851 [inline]
 __x64_sys_sendmmsg+0xa0/0xc0 net/socket.c:2851
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7eff3953ce59
RSP: 002b:00007eff3778e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007eff397b5fa0 RCX: 00007eff3953ce59
RDX: 04000000000001cd RSI: 0000200000005280 RDI: 0000000000000004
RBP: 00007eff395d2e6f R08: 0000000000000000 R09: 0000000000000000
R10: 000000001008c811 R11: 0000000000000246 R12: 0000000000000000
R13: 00007eff397b6038 R14: 00007eff397b5fa0 R15: 00007fff08902ec8
 </TASK>
task:syz.8.2918      state:R  running task     stack:21800 pid:14335 tgid:14335 ppid:13254  task_flags:0x400040 flags:0x00080002
Call Trace:
 <IRQ>
 sched_show_task+0x4aa/0x5f0 kernel/sched/core.c:8180
 rcu_print_detail_task_stall_rnp kernel/rcu/tree_stall.h:292 [inline]
 print_other_cpu_stall+0xf7b/0x1310 kernel/rcu/tree_stall.h:680
 check_cpu_stall kernel/rcu/tree_stall.h:855 [inline]
 rcu_pending kernel/rcu/tree.c:3708 [inline]
 rcu_sched_clock_irq+0x93d/0x1050 kernel/rcu/tree.c:2744
 update_process_times+0x234/0x2d0 kernel/time/timer.c:2475
 tick_sched_handle kernel/time/tick-sched.c:296 [inline]
 tick_nohz_handler+0x38f/0x6b0 kernel/time/tick-sched.c:317
 __run_hrtimer kernel/time/hrtimer.c:2032 [inline]
 __hrtimer_run_queues+0x3a0/0xaf0 kernel/time/hrtimer.c:2096
 hrtimer_interrupt+0x44a/0x900 kernel/time/hrtimer.c:2215
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1051 [inline]
 __sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1068
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:198
Code: f7 e8 0d 10 78 f6 f7 c3 00 02 00 00 74 05 e8 70 04 a4 f6 9c 58 a9 00 02 00 00 75 27 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 54 2f 6a f6 65 8b 05 9d fd 46 07 85 c0 74 18 5b 41 5e e9 41 3c
RSP: 0018:ffffc90004316048 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000246 RCX: 0000000080000002
RDX: 0000000000000002 RSI: ffffffff8d63b2ae RDI: 0000000000000001
RBP: ffffc90004316110 R08: ffffffff8f8ac5f7 R09: 1ffffffff1f158be
R10: dffffc0000000000 R11: fffffbfff1f158bf R12: 1ffff92000862c15
R13: 0000000000000246 R14: ffffc90004316758 R15: ffffc900043160a0
 raw_spin_unlock_irqrestore_wake include/linux/sched/wake_q.h:97 [inline]
 rtlock_slowlock kernel/locking/rtmutex.c:1923 [inline]
 rtlock_lock kernel/locking/spinlock_rt.c:43 [inline]
 __rt_spin_lock kernel/locking/spinlock_rt.c:49 [inline]
 rt_spin_lock+0x17a/0x400 kernel/locking/spinlock_rt.c:57
 spin_lock_bh include/linux/spinlock_rt.h:90 [inline]
 tipc_skb_peek_port net/tipc/msg.h:1225 [inline]
 tipc_sk_rcv+0x2c0/0x2b30 net/tipc/socket.c:2495
 tipc_node_xmit+0x218/0xf10 net/tipc/node.c:1701
 tipc_node_xmit_skb+0x139/0x1b0 net/tipc/node.c:1766
 tipc_sk_rcv+0x2926/0x2b30 net/tipc/socket.c:2526
 tipc_node_xmit+0x218/0xf10 net/tipc/node.c:1701
 tipc_sk_push_backlog net/tipc/socket.c:1313 [inline]
 tipc_sk_filter_connect net/tipc/socket.c:2259 [inline]
 tipc_sk_filter_rcv+0x1811/0x3240 net/tipc/socket.c:2368
 tipc_sk_enqueue net/tipc/socket.c:2449 [inline]
 tipc_sk_rcv+0x8c4/0x2b30 net/tipc/socket.c:2501
 tipc_node_xmit+0x218/0xf10 net/tipc/node.c:1701
 tipc_node_xmit_skb net/tipc/node.c:1766 [inline]
 tipc_node_distr_xmit+0x2da/0x420 net/tipc/node.c:1781
 tipc_sk_backlog_rcv+0x1b6/0x280 net/tipc/socket.c:2416
 sk_backlog_rcv include/net/sock.h:1190 [inline]
 __release_sock+0x2b2/0x3d0 net/core/sock.c:3258
 release_sock+0x1be/0x290 net/core/sock.c:3857
 tipc_release+0x1abe/0x2500 net/tipc/socket.c:651
 __sock_release net/socket.c:710 [inline]
 sock_close+0xad/0x220 net/socket.c:1501
 __fput+0x42a/0xa80 fs/file_table.c:512
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:70 [inline]
 exit_to_user_mode_loop+0x1fa/0x730 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
 do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7eff3953ce59
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
RSP: 002b:00007fff08903028 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007eff397b7da0 RCX: 00007eff3953ce59
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007eff397b7da0 R08: 0000000000000006 R09: 0000000000000000
R10: 00007eff397b7cb0 R11: 0000000000000246 R12: 000000000009d921
R13: 00007eff397b609c R14: 000000000009d8ee R15: 00007eff397b6090
 </TASK>