rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1):
------------[ cut here ]------------
IRQs not enabled as expected
WARNING: CPU: 0 PID: 17680 at kernel/sched/core.c:2701 try_invoke_on_locked_down_task+0x2bf/0x370 kernel/sched/core.c:2701
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 17680 Comm: syz-executor.4 Not tainted 5.8.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x18f/0x20d lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:231
 __warn.cold+0x20/0x45 kernel/panic.c:600
 report_bug+0x1bd/0x210 lib/bug.c:198
 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:235
 exc_invalid_op+0x13/0x40 arch/x86/kernel/traps.c:255
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:540
RIP: 0010:try_invoke_on_locked_down_task+0x2bf/0x370 kernel/sched/core.c:2701
Code: ff d4 41 89 c6 e9 18 ff ff ff 80 3d cb 03 5a 09 00 0f 85 6f fe ff ff 48 c7 c7 40 40 4b 88 c6 05 b7 03 5a 09 01 e8 03 59 f4 ff <0f> 0b e9 55 fe ff ff 4c 89 04 24 4c 89 ee 48 89 ef 41 ff d4 4c 8b
RSP: 0018:ffffc90000007bd8 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 1ffff92000000f7d RCX: 0000000000000000
RDX: ffff88803546c2c0 RSI: ffffffff815d3fe7 RDI: fffff52000000f6d
RBP: ffff88803546c2c0 R08: 0000000000000001 R09: ffff8880ae620fcb
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8160b700
R13: ffffc90000007d00 R14: ffff88803546c2c0 R15: ffff8880ae636c00
 rcu_print_task_stall kernel/rcu/tree_stall.h:269 [inline]
 print_other_cpu_stall kernel/rcu/tree_stall.h:477 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:636 [inline]
 rcu_pending kernel/rcu/tree.c:3489 [inline]
 rcu_sched_clock_irq.cold+0x92e/0xccc kernel/rcu/tree.c:2504
 update_process_times+0x25/0x60 kernel/time/timer.c:1737
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:176
 tick_sched_timer+0x108/0x290 kernel/time/tick-sched.c:1320
 __run_hrtimer kernel/time/hrtimer.c:1520 [inline]
 __hrtimer_run_queues+0x1d5/0xfc0 kernel/time/hrtimer.c:1584
 hrtimer_interrupt+0x32a/0x930 kernel/time/hrtimer.c:1646
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
 __sysvec_apic_timer_interrupt+0x142/0x5e0 arch/x86/kernel/apic/apic.c:1097
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline]
 sysvec_apic_timer_interrupt+0xe0/0x120 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:585
RIP: 0010:__sanitizer_cov_trace_pc+0x30/0x60 kernel/kcov.c:197
Code: ff 01 00 65 8b 05 f0 50 8e 7e a9 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74 35 8b 82 04 14 00 00 85 c0 74 2b 8b 82 e0 13 00 00 <83> f8 02 75 20 48 8b 8a e8 13 00 00 8b 92 e4 13 00 00 48 8b 01 48
RSP: 0018:ffffc90006287970 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff8880222d6c00 RCX: ffffc90011d24000
RDX: ffff88803546c2c0 RSI: ffffffff87611f81 RDI: 0000000000000005
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffff8880937f45bb
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90006287a08
R13: ffff88800f59c098 R14: ffffffff8a98cc80 R15: 0000000000000000
 sctp_bind_addr_state+0xb1/0x1d0 net/sctp/bind_addr.c:402
 sctp_copy_local_addr_list+0x217/0x4e0 net/sctp/protocol.c:162
 sctp_copy_one_addr net/sctp/bind_addr.c:457 [inline]
 sctp_bind_addr_copy+0xde/0x460 net/sctp/bind_addr.c:56
 sctp_connect_new_asoc+0x1cd/0x770 net/sctp/socket.c:1078
 __sctp_connect+0x3e2/0xc00 net/sctp/socket.c:1180
 __sctp_setsockopt_connectx net/sctp/socket.c:1319 [inline]
 __sctp_setsockopt_connectx+0xfa/0x140 net/sctp/socket.c:1294
 sctp_setsockopt_connectx_old net/sctp/socket.c:1330 [inline]
 sctp_setsockopt+0x1052/0x9380 net/sctp/socket.c:4482
 __sys_setsockopt+0x2ad/0x6d0 net/socket.c:2138
 __do_sys_setsockopt net/socket.c:2149 [inline]
 __se_sys_setsockopt net/socket.c:2146 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2146
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45cc79
Code: 2d 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 fb b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f5e6613fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 000000000002fa80 RCX: 000000000045cc79
RDX: 000000000000006b RSI: 0000000000000084 RDI: 0000000000000008
RBP: 000000000078bf50 R08: 0000000000000074 R09: 0000000000000000
R10: 0000000020000140 R11: 0000000000000246 R12: 000000000078bf0c
R13: 00007fff9453ae5f R14: 00007f5e661409c0 R15: 000000000078bf0c
Kernel Offset: disabled
Rebooting in 86400 seconds..