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: 13775 at kernel/sched/core.c:2675 try_invoke_on_locked_down_task+0x219/0x370 kernel/sched/core.c:2675
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 13775 Comm: syz-executor.1 Not tainted 5.8.0-rc1-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+0x2f/0x3a kernel/panic.c:600
 report_bug+0x271/0x2f0 lib/bug.c:198
 exc_invalid_op+0x1b9/0x370 arch/x86/kernel/traps.c:235
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:563
RIP: 0010:try_invoke_on_locked_down_task+0x219/0x370 kernel/sched/core.c:2675
Code: 00 00 85 c9 0f 85 e4 fe ff ff 80 3d 56 e9 58 09 00 0f 85 d7 fe ff ff 48 c7 c7 a0 3b 4b 88 c6 05 42 e9 58 09 01 e8 a9 27 f4 ff <0f> 0b e9 bd fe ff ff 48 8d 74 24 30 48 89 ef 49 c7 c6 00 5e 03 00
RSP: 0018:ffffc90000007c20 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 1ffff92000000f86 RCX: 0000000000000000
RDX: 0000000080010001 RSI: ffffffff815ce897 RDI: fffff52000000f76
RBP: ffff88803fb66140 R08: ffff888046f24280 R09: ffffed1015cc41fa
R10: ffff8880ae620fcb R11: ffffed1015cc41f9 R12: ffffffff816080e0
R13: ffffc90000007d48 R14: ffff888046f24280 R15: dffffc0000000000
 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:3471 [inline]
 rcu_sched_clock_irq.cold+0x928/0xd2a kernel/rcu/tree.c:2486
 update_process_times+0x25/0x60 kernel/time/timer.c:1726
 tick_sched_handle.isra.0+0x91/0x180 kernel/time/tick-sched.c:176
 tick_sched_timer+0x50/0x140 kernel/time/tick-sched.c:1320
 __run_hrtimer kernel/time/hrtimer.c:1520 [inline]
 __hrtimer_run_queues+0x5ca/0xea0 kernel/time/hrtimer.c:1584
 hrtimer_interrupt+0x312/0x770 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+0x1bf/0x210 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596
RIP: 0010:__sctp_v6_cmp_addr+0x37/0x540 net/sctp/ipv6.c:573
Code: 83 ec 08 e8 3b 93 19 fa 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 <84> d2 0f 85 46 04 00 00 48 89 ea 44 0f b7 23 48 b8 00 00 00 00 00
RSP: 0018:ffffc900085efa28 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffff888039229220 RCX: ffffc90005dca000
RDX: 0000000000000000 RSI: ffffffff8759b895 RDI: ffff888039229220
RBP: ffffc900085efb10 R08: ffff888046f24280 R09: ffffed10078095b8
R10: ffff88803c04adbb R11: ffffed10078095b7 R12: ffffc900085efb10
R13: ffff88804185c098 R14: ffffffff8a9765c0 R15: 0000000000000001
 sctp_v6_cmp_addr+0x1a/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:1095
 __sctp_connect+0x430/0xc70 net/sctp/socket.c:1197
 sctp_connect net/sctp/socket.c:4915 [inline]
 sctp_inet_connect+0x14b/0x1b0 net/sctp/socket.c:4930
 __sys_connect_file+0x155/0x1a0 net/socket.c:1854
 __sys_connect+0x160/0x190 net/socket.c:1871
 __do_sys_connect net/socket.c:1882 [inline]
 __se_sys_connect net/socket.c:1879 [inline]
 __x64_sys_connect+0x6f/0xb0 net/socket.c:1879
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:359
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45ca59
Code: Bad RIP value.
RSP: 002b:00007eff7c01dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00000000004db4e0 RCX: 000000000045ca59
RDX: 000000000000001c RSI: 0000000020000080 RDI: 0000000000000006
RBP: 000000000078c220 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000089 R14: 00000000004c3458 R15: 00007eff7c01e6d4
Shutting down cpus with NMI
Kernel Offset: disabled