rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P17167/2:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=115825, q=32474 ncpus=2)
task:syz.4.2985      state:R  running task     stack:22488 pid:17167 tgid:17162 ppid:14122  task_flags:0x40054c flags:0x00080001
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1480/0x50a0 kernel/sched/core.c:6863
 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7190
 irqentry_exit+0x5d8/0x660 kernel/entry/common.c:216
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:kasan_check_range+0x7/0x2c0 mm/kasan/generic.c:199
Code: c6 61 2e fe 8c e8 59 f4 04 ff 90 0f 0b cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 55 41 57 <41> 56 41 55 41 54 53 b0 01 48 85 f6 0f 84 ba 01 00 00 4c 8d 04 37
RSP: 0000:ffffc9001421f338 EFLAGS: 00000246
RAX: ffffffff82106701 RBX: ffffea0002c199c0 RCX: ffffffff82106718
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffea0002c199f0
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff94000583339 R12: 0000000000000000
R13: 1ffffd400058333b R14: ffffea0002c199f0 R15: ffffea0002c199c0
 instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
 atomic_add_negative include/linux/atomic/atomic-instrumented.h:1420 [inline]
 __folio_remove_rmap mm/rmap.c:1668 [inline]
 folio_remove_rmap_ptes+0x318/0x7d0 mm/rmap.c:1779
 zap_present_folio_ptes mm/memory.c:1650 [inline]
 zap_present_ptes mm/memory.c:1708 [inline]
 do_zap_pte_range mm/memory.c:1810 [inline]
 zap_pte_range mm/memory.c:1854 [inline]
 zap_pmd_range mm/memory.c:1946 [inline]
 zap_pud_range mm/memory.c:1975 [inline]
 zap_p4d_range mm/memory.c:1996 [inline]
 unmap_page_range+0x1aea/0x3ce0 mm/memory.c:2017
 unmap_single_vma mm/memory.c:2059 [inline]
 unmap_vmas+0x399/0x580 mm/memory.c:2101
 exit_mmap+0x239/0xb10 mm/mmap.c:1277
 __mmput+0xcb/0x3d0 kernel/fork.c:1173
 exit_mm+0x1da/0x2c0 kernel/exit.c:581
 do_exit+0x658/0x2310 kernel/exit.c:959
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
 get_signal+0x125d/0x1310 kernel/signal.c:3034
 arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
 exit_to_user_mode_loop+0x87/0x4f0 kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
 do_syscall_64+0x2d0/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc5da20f749
RSP: 002b:00007fc5d844d038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 0000000000000044 RBX: 00007fc5da466090 RCX: 00007fc5da20f749
RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000003
RBP: 00007fc5da293f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc5da466128 R14: 00007fc5da466090 R15: 00007ffc402695d8
 </TASK>