rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P10949/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=47845, q=2388 ncpus=2)
task:syz.3.877       state:R  running task     stack:26288 pid:10949 tgid:10948 ppid:10530  flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1850/0x4c30 kernel/sched/core.c:6756
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_release+0x658/0xa30 kernel/locking/lockdep.c:5874
Code: 3c 3b 00 74 08 4c 89 f7 e8 d5 85 8f 00 f6 84 24 91 00 00 00 02 75 77 41 f7 c5 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 4b c7 44 27 08 00 00 00 00 65 48 8b 04 25
RSP: 0000:ffffc900050ff960 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000a1ff3e RCX: ffffc900050ff903
RDX: 0000000000000000 RSI: ffffffff8c0aa880 RDI: ffffffff8c5f64a0
RBP: ffffc900050ffa90 R08: ffffffff90194d37 R09: 1ffffffff20329a6
R10: dffffc0000000000 R11: fffffbfff20329a7 R12: 1ffff92000a1ff38
R13: 0000000000000246 R14: ffffc900050ff9f0 R15: dffffc0000000000
 rcu_lock_release include/linux/rcupdate.h:347 [inline]
 rcu_read_unlock include/linux/rcupdate.h:880 [inline]
 class_rcu_destructor include/linux/rcupdate.h:1161 [inline]
 sched_mm_cid_remote_clear_old kernel/sched/core.c:10497 [inline]
 task_mm_cid_work+0x4d7/0x790 kernel/sched/core.c:10557
 task_work_run+0x251/0x310 kernel/task_work.c:239
 get_signal+0x15f7/0x1750 kernel/signal.c:2790
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 irqentry_exit_to_user_mode+0x7e/0x250 kernel/entry/common.c:231
 exc_page_fault+0x590/0x8b0 arch/x86/mm/fault.c:1542
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fc8dff629c0
RSP: 002b:00007fc8e0de5c08 EFLAGS: 00010212
RAX: 00000000200001c0 RBX: 6666666666666667 RCX: 0000000000000000
RDX: 00000000000003ff RSI: 00000000200001c0 RDI: 00007fc8e0de5c30
RBP: 00007fc8e0de5c30 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000200001c0 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc8e0145fa0 R15: 00007ffcb8f1d1d8
 </TASK>