rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P12633/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=125921, q=3180 ncpus=1)
task:syz.0.1555      state:R  running task     stack:26256 pid:12633 tgid:12624 ppid:5614   task_flags:0x40054c flags:0x00080001
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5510 [inline]
 __schedule+0x17d9/0x56c0 kernel/sched/core.c:7234
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7556
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x14f/0x8f0 kernel/entry/common.c:167
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:rcu_read_lock include/linux/rcupdate.h:841 [inline]
RIP: 0010:lruvec_stat_mod_folio+0x8e/0x3e0 mm/memcontrol.c:983
Code: 29 70 ff 48 8d 1d 00 00 00 00 48 c7 c7 60 9c b5 8e 31 f6 31 d2 b9 02 00 00 00 45 31 c0 45 31 c9 53 e8 76 4a 66 ff 48 83 c4 08 <e8> 2d 4f 94 09 85 c0 74 3a e8 b4 74 6f ff 84 c0 75 31 e8 1b 4f 94
RSP: 0018:ffffc90003977938 EFLAGS: 00000282
RAX: c721c89cb7260300 RBX: ffffffff823c6b9e RCX: 0000000000000046
RDX: 000000005a44979c RSI: ffffffff8e4adb51 RDI: ffffffff8c4bbe80
RBP: dffffc0000000000 R08: ffffffff823c6b9e R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8eb59c60 R12: ffffea000187ea80
R13: ffffea000187ea80 R14: ffff88801fb2b620 R15: ffff88813fffb140
 mod_lruvec_page_state include/linux/vmstat.h:528 [inline]
 vm_area_free_pages mm/vmalloc.c:3459 [inline]
 vfree+0x197/0x4a0 mm/vmalloc.c:3510
 kcov_put kernel/kcov.c:449 [inline]
 kcov_close+0x28/0x50 kernel/kcov.c:554
 __fput+0x418/0xa50 fs/file_table.c:512
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x73a/0x2360 kernel/exit.c:1009
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1152
 get_signal+0x121b/0x12c0 kernel/signal.c:3046
 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
 exit_to_user_mode_loop+0x104/0x730 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
 do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffa4f99e0d9
RSP: 002b:00007ffa4dbf6028 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: fffffffffffffffc RBX: 00007ffa4fc26090 RCX: 00007ffa4f99e0d9
RDX: 000000000000001c RSI: 00002000000001c0 RDI: 0000000000000004
RBP: 00007ffa4fa35024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffa4fc26128 R14: 00007ffa4fc26090 R15: 00007fff970a60a8
 </TASK>