rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P13569/1:b..l
rcu: 	(detected by 0, t=10503 jiffies, g=72277, q=962777 ncpus=2)
task:syz.8.1556      state:R  running task     stack:28832 pid:13569 tgid:13565 ppid:9238   task_flags:0x400040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5295 [inline]
 __schedule+0x1585/0x5310 kernel/sched/core.c:6907
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7234
 irqentry_exit+0x599/0x620 kernel/entry/common.c:239
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_acquire+0x20b/0x2e0 kernel/locking/lockdep.c:5872
Code: e9 30 ff ff ff e8 55 54 0c 0a f7 c3 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 d1 d1 79 11 48 3b 44 24 30 75 33 fb 48 83 c4 38 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 5e 03 73
RSP: 0018:ffffc9000d5ef908 EFLAGS: 00000282
RAX: 37e03db7829a1f00 RBX: 0000000000000246 RCX: 0000000000000046
RDX: 00000000e2c920d4 RSI: ffffffff8e15d4e2 RDI: ffffffff8c277400
RBP: 0000000000000000 R08: ffffffff8239dcae R09: ffffffff8e760320
R10: 000000000000000f R11: ffffffff81b0c240 R12: 0000000000000002
R13: ffffffff8e760320 R14: 0000000000000000 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 rcu_read_lock include/linux/rcupdate.h:850 [inline]
 __update_page_owner_free_handle+0x4b/0x470 mm/page_owner.c:283
 __reset_page_owner+0x85/0x1f0 mm/page_owner.c:321
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1432 [inline]
 __free_frozen_pages+0xc01/0xd80 mm/page_alloc.c:2972
 __slab_free+0x263/0x2b0 mm/slub.c:5487
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_kmalloc+0x22/0xb0 mm/kasan/common.c:406
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x31c/0x660 mm/slub.c:5294
 kmalloc_noprof include/linux/slab.h:962 [inline]
 kzalloc_noprof include/linux/slab.h:1204 [inline]
 sctp_auth_shkey_create+0x7a/0x1b0 net/sctp/auth.c:85
 sctp_endpoint_init net/sctp/endpointola.c:103 [inline]
 sctp_endpoint_new+0x45a/0xa70 net/sctp/endpointola.c:142
 sctp_init_sock+0x94a/0x1380 net/sctp/socket.c:5133
 inet_create+0xd03/0x1000 net/ipv4/af_inet.c:386
 __sock_create+0x4e3/0x960 net/socket.c:1620
 sock_create net/socket.c:1678 [inline]
 __sys_socket_create net/socket.c:1715 [inline]
 __sys_socket+0xd9/0x310 net/socket.c:1762
 __do_sys_socket net/socket.c:1776 [inline]
 __se_sys_socket net/socket.c:1774 [inline]
 __x64_sys_socket+0x7a/0x90 net/socket.c:1774
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f72c399aeb9
RSP: 002b:00007f72c485b028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f72c3c16090 RCX: 00007f72c399aeb9
RDX: 0000000000000084 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 00007f72c3a08c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f72c3c16128 R14: 00007f72c3c16090 R15: 00007ffd97958a98
 </TASK>