rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P4848/1:b..l
rcu: 	(detected by 0, t=10520 jiffies, g=170597, q=1564 ncpus=2)
task:syz.1.7860      state:R  running task     stack:25608 pid:4848  tgid:4848  ppid:31433  task_flags:0x400040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5526 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7277
 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7599
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x14f/0x910 kernel/entry/common.c:167
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_acquire+0x232/0x350 kernel/locking/lockdep.c:5947
Code: ff ff ff e8 50 85 42 0a f7 44 24 10 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 a2 f0 f1 11 48 3b 44 24 50 75 33 fb 48 83 c4 58 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 bf 89 45 0a cc 48 8d 3d 97 4b da
RSP: 0000:ffffc90006a17770 EFLAGS: 00000292
RAX: a9b447bae25c0000 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 0000000098f1f167 RSI: ffffffff8e69c835 RDI: ffffffff8c6da080
RBP: ffff88802f591f40 R08: ffffffff8241f09e R09: 0000000000000000
R10: 000000000000000e R11: ffffffff81b28ab0 R12: ffffffff8ed5c8e0
R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 __update_page_owner_free_handle+0x4b/0x4a0 mm/page_owner.c:301
 __reset_page_owner+0x85/0x1f0 mm/page_owner.c:339
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
 __slab_free+0x274/0x2c0 mm/slub.c:5823
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4683 [inline]
 slab_alloc_node mm/slub.c:4996 [inline]
 kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010
 ptlock_alloc+0x20/0x70 mm/memory.c:7721
 ptlock_init include/linux/mm.h:3884 [inline]
 pagetable_pte_ctor include/linux/mm.h:3933 [inline]
 __pte_alloc_one_noprof include/asm-generic/pgalloc.h:79 [inline]
 pte_alloc_one+0x7a/0x370 arch/x86/mm/pgtable.c:18
 __pte_alloc+0x25/0x1a0 mm/memory.c:453
 do_anonymous_page mm/memory.c:5444 [inline]
 do_pte_missing+0x2db7/0x34b0 mm/memory.c:4698
 handle_pte_fault mm/memory.c:6558 [inline]
 __handle_mm_fault mm/memory.c:6707 [inline]
 handle_mm_fault+0x1a53/0x3750 mm/memory.c:6876
 do_user_addr_fault+0xa4f/0x1340 arch/x86/mm/fault.c:1343
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7fc1f086b528
RSP: 002b:00007ffe9af87940 EFLAGS: 00010246
RAX: 0000200000000380 RBX: 0000000000000002 RCX: 000000000000002a
RDX: cfc858b2e3973a35 RSI: 0000000000000000 RDI: 000055556786d3d8
RBP: fffffffffffffffe R08: 0000001b30320000 R09: 000000000000000f
R10: 00001fffffffffff R11: 0000000000000006 R12: 00007ffe9af87a60
R13: 00007fc1f0c2609c R14: 00000000000c924a R15: 00007ffe9af87a40
 </TASK>