rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P27852
	(detected by 0, t=10503 jiffies, g=391537, q=10534)
syz-executor.2  R  running task    28088 27852   7325 0x00004006
Call Trace:
 <IRQ>
 sched_show_task kernel/sched/core.c:5961 [inline]
 sched_show_task.cold+0x2e2/0x343 kernel/sched/core.c:5936
 rcu_print_detail_task_stall_rnp kernel/rcu/tree_stall.h:190 [inline]
 print_other_cpu_stall kernel/rcu/tree_stall.h:418 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:558 [inline]
 rcu_pending kernel/rcu/tree.c:3225 [inline]
 rcu_sched_clock_irq.cold+0xca8/0xd00 kernel/rcu/tree.c:2296
 update_process_times+0x25/0x60 kernel/time/timer.c:1727
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:176
 tick_sched_timer+0x4e/0x140 kernel/time/tick-sched.c:1320
 __run_hrtimer kernel/time/hrtimer.c:1520 [inline]
 __hrtimer_run_queues+0x5ca/0xed0 kernel/time/hrtimer.c:1584
 hrtimer_interrupt+0x312/0x770 kernel/time/hrtimer.c:1646
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1113 [inline]
 smp_apic_timer_interrupt+0x15b/0x600 arch/x86/kernel/apic/apic.c:1138
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
 </IRQ>
RIP: 0010:__sanitizer_cov_trace_pc+0x31/0x60 kernel/kcov.c:197
Code: 02 00 65 8b 15 28 ea 8e 7e f7 c2 00 01 1f 00 48 8b 34 24 74 0f 80 e6 01 74 35 8b 90 04 14 00 00 85 d2 74 2b 8b 90 e0 13 00 00 <83> fa 02 75 20 48 8b 88 e8 13 00 00 8b 80 e4 13 00 00 48 8b 11 48
RSP: 0018:ffffc900064e7a30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff8881ef182240 RBX: ffffc900064e7af0 RCX: ffffffff8751c0b6
RDX: 0000000000000002 RSI: ffffffff8751c12f RDI: 0000000000000005
RBP: ffff88804de50820 R08: ffff8881ef182240 R09: ffffed10080a4fc8
R10: ffff888040527e3b R11: ffffed10080a4fc7 R12: 0000000000000000
R13: ffff88803e390098 R14: ffffffff8a75aee0 R15: 0000000000000001
 sctp_v6_cmp_addr+0x9f/0xd0 net/sctp/ipv6.c:609
 sctp_bind_addr_state+0x103/0x1d0 net/sctp/bind_addr.c:404
 sctp_copy_local_addr_list+0x255/0x530 net/sctp/protocol.c:161
 sctp_copy_one_addr+0x5b/0x170 net/sctp/bind_addr.c:457
 sctp_bind_addr_copy+0xfc/0x2ca net/sctp/bind_addr.c:56
 sctp_connect_new_asoc+0x16c/0x580 net/sctp/socket.c:1088
 __sctp_connect+0x430/0xc70 net/sctp/socket.c:1190
 sctp_connect net/sctp/socket.c:4908 [inline]
 sctp_inet_connect+0x14b/0x1b0 net/sctp/socket.c:4923
 __sys_connect_file+0x155/0x1a0 net/socket.c:1859
 __sys_connect+0x160/0x190 net/socket.c:1876
 __do_sys_connect net/socket.c:1887 [inline]
 __se_sys_connect net/socket.c:1884 [inline]
 __x64_sys_connect+0x6f/0xb0 net/socket.c:1884
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45c829
Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f2baa932c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00000000004dabc0 RCX: 000000000045c829
RDX: 000000000000001c RSI: 0000000020000080 RDI: 0000000000000003
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000084 R14: 00000000004c31c2 R15: 00007f2baa9336d4