rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P14448/1:b..l..
rcu: 	(detected by 0, t=10502 jiffies, g=207481, q=1870 ncpus=1)
task:syz-executor    state:R  running task     stack:23096 pid:14448 tgid:14448 ppid:14443  task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5584 [inline]
 __schedule+0x125e/0x6a40 kernel/sched/core.c:7389
 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:7669
 irqentry_exit_cond_resched arch/x86/include/asm/fred.h:105 [inline]
 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:453 [inline]
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:543 [inline]
 irqentry_exit+0x33f/0xab0 kernel/entry/common.c:154
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_release+0x19e/0x310 kernel/locking/lockdep.c:5968
Code: ff 65 0f c1 05 5b cc d1 13 83 f8 01 0f 85 27 01 00 00 9c 58 f6 c4 02 0f 85 12 01 00 00 41 f7 c6 00 02 00 00 0f 85 c8 00 00 00 <48> 8b 44 24 10 65 48 2b 05 9d 82 d1 13 0f 85 4d 01 00 00 48 83 c4
RSP: 0018:ffffc9000719f7c8 EFLAGS: 00000206
RAX: 0000000000000046 RBX: ffffffff8ffed020 RCX: ffffc9000719f7d4
RDX: 0000000000000000 RSI: ffffffff8e602a4d RDI: ffffffff8c835a80
RBP: ffffffff8293f2b9 R08: 0000000000000000 R09: 0000000000000001
R10: ffff88801f15c577 R11: 0000000000000001 R12: ffff888033c9a580
R13: 00000000050205aa R14: 0000000000000202 R15: 0000000000000005
 rcu_lock_release include/linux/rcupdate.h:319 [inline]
 rcu_read_unlock include/linux/rcupdate.h:880 [inline]
 __update_page_owner_free_handle+0x28e/0x400 mm/page_owner.c:313
 __reset_page_owner+0x106/0x230 mm/page_owner.c:339
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1403 [inline]
 __free_frozen_pages+0x7b4/0x1110 mm/page_alloc.c:2957
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_kmalloc+0x8a/0xb0 mm/kasan/common.c:417
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5531 [inline]
 __kmalloc_noprof+0x32f/0x840 mm/slub.c:5556
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 tomoyo_encode2+0xfb/0x3c0 security/tomoyo/realpath.c:45
 tomoyo_encode+0x29/0x50 security/tomoyo/realpath.c:80
 tomoyo_realpath_from_path+0x18c/0x690 security/tomoyo/realpath.c:283
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_perm+0x276/0x460 security/tomoyo/file.c:827
 tomoyo_path_unlink+0x91/0xe0 security/tomoyo/tomoyo.c:162
 security_path_unlink+0x145/0x2b0 security/security.c:1498
 filename_unlinkat+0x316/0x770 fs/namei.c:5734
 __do_sys_unlink fs/namei.c:5772 [inline]
 __se_sys_unlink fs/namei.c:5769 [inline]
 __x64_sys_unlink+0x46/0x70 fs/namei.c:5769
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x7b0 arch/x86/entry/syscall_64.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f06c199ec07
RSP: 002b:00007ffcd0d07628 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f06c199ec07
RDX: 00007ffcd0d07650 RSI: 00007ffcd0d076e0 RDI: 00007ffcd0d076e0
RBP: 00007ffcd0d076e0 R08: 00007ffcd0d086e0 R09: 00000000ffffffff
R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffcd0d08770
R13: 00007f06c1a36fb3 R14: 0000000000171b24 R15: 00007ffcd0d087b0
 </TASK>