rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P16503/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=50481, q=9513 ncpus=2)
task:syz.6.1291      state:R  running task     stack:26440 pid:16503 tgid:16502 ppid:7633   task_flags:0x400140 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1798/0x4cc0 kernel/sched/core.c:6961
 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7288
 irqentry_exit+0x6f/0x90 kernel/entry/common.c:197
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x175/0x360 kernel/locking/lockdep.c:5872
Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 eb e3 02 11 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e
RSP: 0000:ffffc9001110fbe0 EFLAGS: 00000206
RAX: 53a817ac20c07600 RBX: 0000000000000000 RCX: 53a817ac20c07600
RDX: 0000000000000001 RSI: ffffffff8dba5fdf RDI: ffffffff8be33400
RBP: ffffffff81926c54 R08: 0000000000000000 R09: ffffffff81926c54
R10: dffffc0000000000 R11: fffff52002221fa0 R12: 0000000000000002
R13: ffffffff8e139ee0 R14: 0000000000000000 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 rcu_read_lock include/linux/rcupdate.h:841 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
 sched_mm_cid_remote_clear+0x151/0x4d0 kernel/sched/core.c:10721
 sched_mm_cid_remote_clear_old kernel/sched/core.c:10767 [inline]
 task_mm_cid_work+0x4b8/0x760 kernel/sched/core.c:10817
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 resume_user_mode_work+0x5e/0x80 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:43 [inline]
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 irqentry_exit_to_user_mode+0x90/0x120 kernel/entry/common.c:73
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0033:0x7ff505254397
RSP: 002b:00007ff506147040 EFLAGS: 00000217
RAX: 0000000000000000 RBX: 00007ff5055b5fa0 RCX: 00007ff50538ebe9
RDX: 00002000000002c0 RSI: 00000000ffffffe8 RDI: 0000000000000000
RBP: 00007ff505411e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff5055b6038 R14: 00007ff5055b5fa0 R15: 00007ffcbd828518
 </TASK>