rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P6970/1:b..l
rcu: 	(detected by 1, t=10503 jiffies, g=23365, q=833 ncpus=2)
task:syz.0.282       state:R  running task     stack:23192 pid:6970  tgid:6969  ppid:5843   task_flags:0x40054c 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:unwind_next_frame+0x1883/0x2390 arch/x86/kernel/unwind_orc.c:665
Code: 20 ca 80 fa 01 0f 85 63 01 00 00 49 8d 4c 24 08 4c 39 e9 0f 86 55 01 00 00 48 39 c1 0f 87 4c 01 00 00 4c 3b a4 24 90 00 00 00 <4c> 8b 7c 24 48 0f 87 c9 00 00 00 49 8d 5e 28 48 89 d8 48 c1 e8 03
RSP: 0018:ffffc900035e6e98 EFLAGS: 00000202
RAX: ffffc900035e8000 RBX: ffffffff9083f101 RCX: ffffc900035e74e0
RDX: ffffc900035e6f01 RSI: dffffc0000000000 RDI: ffffc900035e6f70
RBP: dffffc0000000000 R08: ffffc900035e74c8 R09: 0000000000000000
R10: ffffc900035e6fb8 R11: fffff520006bcdf9 R12: ffffc900035e74d8
R13: ffffc900035e0000 R14: ffffc900035e6f68 R15: ffffc900035e6f78
 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:243 [inline]
 __kasan_slab_free+0x5b/0x80 mm/kasan/common.c:275
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2417 [inline]
 slab_free mm/slub.c:4680 [inline]
 kmem_cache_free+0x18f/0x400 mm/slub.c:4782
 free_buffer_head+0x55/0x220 fs/buffer.c:3041
 try_to_free_buffers+0x232/0x2d0 fs/buffer.c:2982
 block_invalidate_folio+0x5f7/0x730 fs/buffer.c:1674
 folio_invalidate mm/truncate.c:140 [inline]
 truncate_cleanup_folio+0x2d8/0x430 mm/truncate.c:160
 truncate_inode_pages_range+0x233/0xda0 mm/truncate.c:379
 kill_bdev block/bdev.c:91 [inline]
 blkdev_flush_mapping+0x108/0x270 block/bdev.c:712
 blkdev_put_whole block/bdev.c:719 [inline]
 bdev_release+0x417/0x650 block/bdev.c:1144
 blkdev_release+0x15/0x20 block/fops.c:699
 __fput+0x44c/0xa70 fs/file_table.c:468
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x6b5/0x2300 kernel/exit.c:961
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1102
 get_signal+0x1286/0x1340 kernel/signal.c:3034
 arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1b9d78eb69
RSP: 002b:00007f1b9e53e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: 0000000000840000 RBX: 00007f1b9d9b5fa0 RCX: 00007f1b9d78eb69
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004
RBP: 00007f1b9d811df1 R08: 0000000000000000 R09: 0000000000000000
R10: 000000007ffff000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1b9d9b5fa0 R15: 00007ffc80be7a88
 </TASK>