rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P17298/1:b..l
rcu: 	(detected by 1, t=10503 jiffies, g=107541, q=371 ncpus=2)
task:syz.1.3129      state:R  running task     stack:25120 pid:17298 tgid:17298 ppid:5830   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5298 [inline]
 __schedule+0x15dd/0x52d0 kernel/sched/core.c:6911
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7238
 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:deref_stack_reg arch/x86/kernel/unwind_orc.c:422 [inline]
RIP: 0010:unwind_next_frame+0xe68/0x23c0 arch/x86/kernel/unwind_orc.c:600
Code: 96 c0 20 c8 3c 01 0f 85 ca 0b 00 00 48 89 df e8 be 21 00 00 48 89 c3 48 bd 00 00 00 00 00 fc ff df 48 8b 44 24 30 80 3c 28 00 <4c> 8b 7c 24 10 74 08 4c 89 ff e8 99 70 b9 00 49 89 1f 48 8b 44 24
RSP: 0018:ffffc9001d8e7078 EFLAGS: 00000246
RAX: 1ffff92003b1ce32 RBX: ffffffff822fc972 RCX: 1ffff92003b1ce01
RDX: ffffffff90b42c68 RSI: 0000000000000002 RDI: ffffc9001d8e7578
RBP: dffffc0000000000 R08: 0000000000000006 R09: ffffffff8e75e5e0
R10: dffffc0000000000 R11: ffffffff81b0d030 R12: ffffc9001d8e8000
R13: 1ffff92003b1ce2b R14: ffffc9001d8e7148 R15: ffffc9001d8e0000
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 save_stack+0x122/0x230 mm/page_owner.c:165
 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1433 [inline]
 __free_frozen_pages+0xc2b/0xdb0 mm/page_alloc.c:2978
 __slab_free+0x263/0x2b0 mm/slub.c:5573
 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_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:4538 [inline]
 slab_alloc_node mm/slub.c:4866 [inline]
 kmem_cache_alloc_noprof+0x2bc/0x650 mm/slub.c:4873
 mt_alloc_one lib/maple_tree.c:174 [inline]
 mas_alloc_nodes+0x291/0x350 lib/maple_tree.c:1110
 mas_preallocate+0x2d6/0x640 lib/maple_tree.c:5194
 vma_iter_prealloc mm/vma.h:568 [inline]
 __split_vma+0x318/0xa40 mm/vma.c:526
 split_vma mm/vma.c:596 [inline]
 vma_modify+0xa30/0x2060 mm/vma.c:1680
 vma_modify_flags+0x24b/0x330 mm/vma.c:1700
 mprotect_fixup+0x47a/0xa80 mm/mprotect.c:756
 do_mprotect_pkey+0x8ab/0xcd0 mm/mprotect.c:930
 __do_sys_mprotect mm/mprotect.c:951 [inline]
 __se_sys_mprotect mm/mprotect.c:948 [inline]
 __x64_sys_mprotect+0x80/0x90 mm/mprotect.c:948
 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: 0033:0x7fa3b719c617
RSP: 002b:00007fff8e167978 EFLAGS: 00000206 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 00007fa3b7fd66c0 RCX: 00007fa3b719c617
RDX: 0000000000000003 RSI: 0000000000020000 RDI: 00007fa3b7fb7000
RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000021000 R11: 0000000000000206 R12: 00007fff8e167ad0
R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000
 </TASK>