rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P15766
	(detected by 0, t=10502 jiffies, g=141325, q=1402)
syz-executor.5  R  running task    26424 15766   8764 0x00004006
Call Trace:
 <IRQ>
 sched_show_task kernel/sched/core.c:5935 [inline]
 sched_show_task.cold+0x2ed/0x34e kernel/sched/core.c:5910
 rcu_print_detail_task_stall_rnp kernel/rcu/tree_stall.h:190 [inline]
 print_other_cpu_stall kernel/rcu/tree_stall.h:398 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:538 [inline]
 rcu_pending kernel/rcu/tree.c:2795 [inline]
 rcu_sched_clock_irq.cold+0xbd4/0xc12 kernel/rcu/tree.c:2244
 update_process_times+0x2d/0x70 kernel/time/timer.c:1726
 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:167
 tick_sched_timer+0x53/0x140 kernel/time/tick-sched.c:1299
 __run_hrtimer kernel/time/hrtimer.c:1514 [inline]
 __hrtimer_run_queues+0x364/0xe40 kernel/time/hrtimer.c:1576
 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1638
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline]
 smp_apic_timer_interrupt+0x160/0x610 arch/x86/kernel/apic/apic.c:1135
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
 </IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:70 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x20/0x50 kernel/kcov.c:102
Code: ff 90 90 90 90 90 90 90 90 90 55 48 89 e5 65 48 8b 04 25 40 fe 01 00 65 8b 15 44 dc 8e 7e 81 e2 00 01 1f 00 48 8b 75 08 75 2b <8b> 90 f8 12 00 00 83 fa 02 75 20 48 8b 88 00 13 00 00 8b 80 fc 12
RSP: 0018:ffff8880445277e8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff8880395a6040 RBX: ffff8880445278c0 RCX: ffffc900109d6000
RDX: 0000000000000000 RSI: ffffffff86c7ef94 RDI: ffff888037f624a0
RBP: ffff8880445277e8 R08: ffff8880395a6040 R09: ffffed101322bb48
R10: ffffed101322bb47 R11: ffff88809915da3b R12: ffff888037f624a0
R13: ffff8880445278c0 R14: ffff888065368088 R15: 0000000000000001
 sctp_v6_cmp_addr+0x14/0xe0 net/sctp/ipv6.c:601
 sctp_bind_addr_state+0x10a/0x1d0 net/sctp/bind_addr.c:404
 sctp_copy_local_addr_list+0x255/0x530 net/sctp/protocol.c:161
 sctp_copy_one_addr+0x5f/0x170 net/sctp/bind_addr.c:457
 sctp_bind_addr_copy+0xfc/0x2c8 net/sctp/bind_addr.c:56
 sctp_assoc_set_bind_addr_from_ep+0x168/0x1c0 net/sctp/associola.c:1582
 sctp_connect_new_asoc+0x180/0x5a0 net/sctp/socket.c:1074
 sctp_sendmsg_new_asoc net/sctp/socket.c:1680 [inline]
 sctp_sendmsg+0x13a0/0x1f10 net/sctp/socket.c:1990
 inet_sendmsg+0x9e/0xe0 net/ipv4/af_inet.c:807
 sock_sendmsg_nosec net/socket.c:637 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:657
 __sys_sendto+0x262/0x380 net/socket.c:1952
 __do_sys_sendto net/socket.c:1964 [inline]
 __se_sys_sendto net/socket.c:1960 [inline]
 __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1960
 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459f39
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f57d0655c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000459f39
RDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000009
RBP: 000000000075bf20 R08: 0000000020aa9000 R09: 000000000000001c
R10: 00000000000000fc R11: 0000000000000246 R12: 00007f57d06566d4
R13: 00000000004c83ae R14: 00000000004de6f0 R15: 00000000ffffffff