protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P24719 (detected by 1, t=10502 jiffies, g=527549, q=2867) syz-executor.1 R running task 26840 24719 9329 0x00004006 Call Trace: 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 RIP: 0010:sctp_bind_addr_state+0xd6/0x1d0 net/sctp/bind_addr.c:402 Code: 89 45 c8 e8 dc 64 b8 fa 48 8d 7b 3d 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 42 0f b6 04 20 38 d0 7f 08 84 c0 0f 85 be 00 00 00 <44> 0f b6 7b 3d 31 ff 44 89 fe e8 eb 65 b8 fa 45 84 ff 74 31 e8 a1 RSP: 0018:ffff88801c98f9e0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff88806a78b000 RCX: ffffc90008190000 RDX: 0000000000000005 RSI: ffffffff86baadb4 RDI: ffff88806a78b03d RBP: ffff88801c98fa20 R08: ffff88803aade2c0 R09: ffffed1007bdb718 R10: ffffed1007bdb717 R11: ffff88803dedb8bb R12: dffffc0000000000 R13: ffff88801c98fa80 R14: ffff88802646c088 R15: 0000000000000000 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_connect+0x433/0xcd0 net/sctp/socket.c:1176 sctp_connect net/sctp/socket.c:4841 [inline] sctp_inet_connect+0x14d/0x1c0 net/sctp/socket.c:4856 __sys_connect+0x264/0x330 net/socket.c:1828 __do_sys_connect net/socket.c:1839 [inline] __se_sys_connect net/socket.c:1836 [inline] __x64_sys_connect+0x73/0xb0 net/socket.c:1836 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459a59 Code: fd 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f612f7ffc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459a59 RDX: 000000000000001c RSI: 0000000020d83fe4 RDI: 0000000000000016 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f612f8006d4 R13: 00000000004bffec R14: 00000000004d2268 R15: 00000000ffffffff protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0