rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P6987
rcu: 	(detected by 0, t=10503 jiffies, g=272957, q=5130)
syz-executor.1  R  running task    28096  6987   6571 0x0000000e
Call Trace:
 <IRQ>
 sched_show_task.cold+0x334/0x395 kernel/sched/core.c:5338
 rcu_print_detail_task_stall_rnp+0xe7/0x120 kernel/rcu/tree_plugin.h:627
 rcu_print_detail_task_stall kernel/rcu/tree_plugin.h:640 [inline]
 print_other_cpu_stall kernel/rcu/tree.c:1418 [inline]
 check_cpu_stall kernel/rcu/tree.c:1557 [inline]
 __rcu_pending kernel/rcu/tree.c:3293 [inline]
 rcu_pending kernel/rcu/tree.c:3336 [inline]
 rcu_check_callbacks.cold+0x84a/0xddc kernel/rcu/tree.c:2682
 update_process_times+0x2a/0x70 kernel/time/timer.c:1638
 tick_sched_handle.isra.0+0x91/0x180 kernel/time/tick-sched.c:168
 tick_sched_timer+0x44/0x130 kernel/time/tick-sched.c:1278
 __run_hrtimer kernel/time/hrtimer.c:1401 [inline]
 __hrtimer_run_queues+0x2ec/0xd20 kernel/time/hrtimer.c:1463
 hrtimer_interrupt+0x312/0x770 kernel/time/hrtimer.c:1521
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline]
 smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1092
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:__sctp_v6_cmp_addr+0x8/0x540 net/sctp/ipv6.c:584
Code: fa eb b7 be 10 00 00 00 e8 25 b8 fb fa e9 98 fe ff ff e8 fb b7 fb fa e9 36 fe ff ff 66 0f 1f 44 00 00 41 55 41 54 55 48 89 f5 <53> 48 89 fb 48 83 ec 08 e8 ab 29 c6 fa 48 89 da 48 b8 00 00 00 00
RSP: 0018:ffff888214aef8e8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000040000 RBX: ffff888214aef9c0 RCX: ffffc90007cd1000
RDX: 0000000000040000 RSI: ffff888214aef9c0 RDI: ffff8880187ee920
RBP: ffff888214aef9c0 R08: ffff88820537e500 R09: ffffed1015cc473b
R10: ffffed1015cc473a R11: ffff8880ae6239d3 R12: ffff888214aef9c0
R13: ffff88820da78290 R14: ffffffff897853a0 R15: 0000000000000001
 sctp_v6_cmp_addr+0x1a/0xd0 net/sctp/ipv6.c:621
 sctp_bind_addr_state+0x14b/0x330 net/sctp/bind_addr.c:393
 sctp_copy_local_addr_list+0x255/0x530 net/sctp/protocol.c:176
 sctp_copy_one_addr+0x5b/0x170 net/sctp/bind_addr.c:449
 sctp_bind_addr_copy+0xfc/0x2ca net/sctp/bind_addr.c:71
 __sctp_connect+0x74e/0xcc0 net/sctp/socket.c:1214
 __sctp_setsockopt_connectx+0x123/0x180 net/sctp/socket.c:1367
 sctp_setsockopt_connectx net/sctp/socket.c:1399 [inline]
 sctp_setsockopt net/sctp/socket.c:4344 [inline]
 sctp_setsockopt+0x2875/0x4a70 net/sctp/socket.c:4301
 __sys_setsockopt+0x14d/0x240 net/socket.c:1901
 __do_sys_setsockopt net/socket.c:1912 [inline]
 __se_sys_setsockopt net/socket.c:1909 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:1909
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45ca69
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:00007f2d88226c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00000000005053c0 RCX: 000000000045ca69
RDX: 000000000000006e RSI: 0000000000000084 RDI: 0000000000000005
RBP: 000000000078bf00 R08: 000000000000001c R09: 0000000000000000
R10: 0000000020000180 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000b07 R14: 00000000004d7938 R15: 00007f2d882276d4
syz-executor.1  R  running task    28096  6987   6571 0x8000000e
Call Trace:
 <IRQ>
 sched_show_task.cold+0x334/0x395 kernel/sched/core.c:5338
 rcu_print_detail_task_stall_rnp+0xe7/0x120 kernel/rcu/tree_plugin.h:627
 rcu_print_detail_task_stall kernel/rcu/tree_plugin.h:642 [inline]
 print_other_cpu_stall kernel/rcu/tree.c:1418 [inline]
 check_cpu_stall kernel/rcu/tree.c:1557 [inline]
 __rcu_pending kernel/rcu/tree.c:3293 [inline]
 rcu_pending kernel/rcu/tree.c:3336 [inline]
 rcu_check_callbacks.cold+0x8a8/0xddc kernel/rcu/tree.c:2682
 update_process_times+0x2a/0x70 kernel/time/timer.c:1638
 tick_sched_handle.isra.0+0x91/0x180 kernel/time/tick-sched.c:168
 tick_sched_timer+0x44/0x130 kernel/time/tick-sched.c:1278
 __run_hrtimer kernel/time/hrtimer.c:1401 [inline]
 __hrtimer_run_queues+0x2ec/0xd20 kernel/time/hrtimer.c:1463
 hrtimer_interrupt+0x312/0x770 kernel/time/hrtimer.c:1521
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline]
 smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1092
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:__sctp_v6_cmp_addr+0x8/0x540 net/sctp/ipv6.c:584
Code: fa eb b7 be 10 00 00 00 e8 25 b8 fb fa e9 98 fe ff ff e8 fb b7 fb fa e9 36 fe ff ff 66 0f 1f 44 00 00 41 55 41 54 55 48 89 f5 <53> 48 89 fb 48 83 ec 08 e8 ab 29 c6 fa 48 89 da 48 b8 00 00 00 00
RSP: 0018:ffff888214aef8e8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000040000 RBX: ffff888214aef9c0 RCX: ffffc90007cd1000
RDX: 0000000000040000 RSI: ffff888214aef9c0 RDI: ffff8880187ee920
RBP: ffff888214aef9c0 R08: ffff88820537e500 R09: ffffed1015cc473b
R10: ffffed1015cc473a R11: ffff8880ae6239d3 R12: ffff888214aef9c0
R13: ffff88820da78290 R14: ffffffff897853a0 R15: 0000000000000001
 sctp_v6_cmp_addr+0x1a/0xd0 net/sctp/ipv6.c:621
 sctp_bind_addr_state+0x14b/0x330 net/sctp/bind_addr.c:393
 sctp_copy_local_addr_list+0x255/0x530 net/sctp/protocol.c:176
 sctp_copy_one_addr+0x5b/0x170 net/sctp/bind_addr.c:449
 sctp_bind_addr_copy+0xfc/0x2ca net/sctp/bind_addr.c:71
 __sctp_connect+0x74e/0xcc0 net/sctp/socket.c:1214
 __sctp_setsockopt_connectx+0x123/0x180 net/sctp/socket.c:1367
 sctp_setsockopt_connectx net/sctp/socket.c:1399 [inline]
 sctp_setsockopt net/sctp/socket.c:4344 [inline]
 sctp_setsockopt+0x2875/0x4a70 net/sctp/socket.c:4301
 __sys_setsockopt+0x14d/0x240 net/socket.c:1901
 __do_sys_setsockopt net/socket.c:1912 [inline]
 __se_sys_setsockopt net/socket.c:1909 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:1909
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45ca69
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:00007f2d88226c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00000000005053c0 RCX: 000000000045ca69
RDX: 000000000000006e RSI: 0000000000000084 RDI: 0000000000000005
RBP: 000000000078bf00 R08: 000000000000001c R09: 0000000000000000
R10: 0000000020000180 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000b07 R14: 00000000004d7938 R15: 00007f2d882276d4