rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (0 ticks this GP) idle=545/1/0x4000000000000000 softirq=200506/200506 fqs=0 
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P6169/1:b..l
	(detected by 0, t=10502 jiffies, g=350089, q=111)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 1 Comm: systemd Not tainted 5.15.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__kasan_check_read+0x4/0x10 mm/kasan/shadow.c:31
Code: 36 07 48 85 db 0f 85 0a 79 37 07 48 83 c4 60 5b 5d 41 5c 41 5d c3 c3 e9 0a 7a 37 07 cc cc cc cc cc cc cc cc cc cc 48 8b 0c 24 <89> f6 31 d2 e9 03 f9 ff ff 0f 1f 00 48 8b 0c 24 89 f6 ba 01 00 00
RSP: 0018:ffffc90000dc0e08 EFLAGS: 00000056
RAX: 0000000000000000 RBX: ffff8880b9d224c0 RCX: ffffffff81668196
RDX: ffff888011eb8000 RSI: 0000000000000008 RDI: ffffffff8d6e7590
RBP: ffff88807e068340 R08: 0000000000000007 R09: ffffffff9046f4d3
R10: ffffffff8166816b R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: ffff8880b9d223c0 R15: 0000000000000001
FS:  00007f1cf27e1500(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1cf106d4e0 CR3: 0000000025d6b000 CR4: 0000000000350ee0
Call Trace:
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:71 [inline]
 test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
 cpumask_test_cpu include/linux/cpumask.h:344 [inline]
 cpu_online include/linux/cpumask.h:895 [inline]
 trace_hrtimer_start include/trace/events/timer.h:195 [inline]
 debug_activate kernel/time/hrtimer.c:476 [inline]
 enqueue_hrtimer+0x76/0x3e0 kernel/time/hrtimer.c:1084
 __run_hrtimer kernel/time/hrtimer.c:1702 [inline]
 __hrtimer_run_queues+0xb02/0xe50 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:write_comp_data kernel/kcov.c:218 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x1d/0x80 kernel/kcov.c:270
Code: 54 c8 20 48 89 10 c3 66 0f 1f 44 00 00 53 41 89 fb 41 89 f1 bf 03 00 00 00 65 48 8b 0c 25 40 f0 01 00 48 89 ce 4c 8b 54 24 08 <e8> 4e f1 ff ff 84 c0 74 51 48 8b 81 48 15 00 00 44 8b 81 44 15 00
RSP: 0018:ffffc90000c679d0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888024b51a00 RCX: ffff888011eb8000
RDX: 1ffff9200018cf6e RSI: ffff888011eb8000 RDI: 0000000000000003
RBP: ffffc90000c67b48 R08: 000000007a2ace8f R09: 0000000000000005
R10: ffffffff83a1e80a R11: 000000000000001f R12: ffff888024b51a00
R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000
 tomoyo_check_path_acl+0x4a/0x210 security/tomoyo/file.c:258
 tomoyo_check_acl+0x13c/0x450 security/tomoyo/domain.c:175
 tomoyo_path_permission security/tomoyo/file.c:586 [inline]
 tomoyo_path_permission+0x1ff/0x3a0 security/tomoyo/file.c:573
 tomoyo_path_perm+0x2f0/0x400 security/tomoyo/file.c:838
 security_inode_getattr+0xcf/0x140 security/security.c:1333
 vfs_getattr fs/stat.c:157 [inline]
 vfs_statx+0x164/0x390 fs/stat.c:225
 vfs_fstatat fs/stat.c:243 [inline]
 vfs_stat include/linux/fs.h:3352 [inline]
 __do_sys_newstat+0x91/0x110 fs/stat.c:385
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1cf0daa295
Code: 00 00 00 e8 5d 01 00 00 48 83 c4 18 c3 0f 1f 84 00 00 00 00 00 83 ff 01 48 89 f0 77 30 48 89 c7 48 89 d6 b8 04 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 03 f3 c3 90 48 8b 15 d1 db 2b 00 f7 d8 64 89
RSP: 002b:00007ffc81820278 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00007f1cf0e32011 RCX: 00007f1cf0daa295
RDX: 00007ffc81820300 RSI: 00007ffc81820300 RDI: 00007f1cf0e32011
RBP: 0000000000000001 R08: 000055c06ba55240 R09: 0000000000000020
R10: 2ce33e6c02ce33e7 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ffc81820490 R15: 000055c06ba58b28
task:syz-executor.0  state:R  running task     stack:29168 pid: 6169 ppid:  6536 flags:0x00000000
Call Trace:
 context_switch kernel/sched/core.c:4940 [inline]
 __schedule+0xb44/0x5960 kernel/sched/core.c:6287
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6459
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
 _raw_spin_unlock_irqrestore+0x57/0x70 kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
 timerfd_clock_was_set+0x162/0x2e0 fs/timerfd.c:113
 clock_was_set+0x5cf/0x790 kernel/time/hrtimer.c:980
 do_settimeofday64 kernel/time/timekeeping.c:1327 [inline]
 do_settimeofday64+0x3e2/0x5c0 kernel/time/timekeeping.c:1293
 do_sys_settimeofday64 kernel/time/time.c:195 [inline]
 do_sys_settimeofday64+0x1de/0x260 kernel/time/time.c:169
 __do_sys_clock_settime kernel/time/posix-timers.c:1079 [inline]
 __se_sys_clock_settime kernel/time/posix-timers.c:1067 [inline]
 __x64_sys_clock_settime+0x1a1/0x280 kernel/time/posix-timers.c:1067
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f2855199a39
RSP: 002b:00007f285270f188 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00007f28552acf60 RCX: 00007f2855199a39
RDX: 0000000000000000 RSI: 0000000020002880 RDI: 0000000000000000
RBP: 00007f28551f3e8f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd0d337baf R14: 00007f285270f300 R15: 0000000000022000
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g350089 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=135937
rcu: rcu_preempt kthread starved for 10502 jiffies! g350089 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:28696 pid:   14 ppid:     2 flags:0x00004000
Call Trace:
 context_switch kernel/sched/core.c:4940 [inline]
 __schedule+0xb44/0x5960 kernel/sched/core.c:6287
 schedule+0xd3/0x270 kernel/sched/core.c:6366
 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
 rcu_gp_fqs_loop+0x186/0x800 kernel/rcu/tree.c:1957
 rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2130
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
----------------
Code disassembly (best guess):
   0:	36 07                	ss (bad)
   2:	48 85 db             	test   %rbx,%rbx
   5:	0f 85 0a 79 37 07    	jne    0x7377915
   b:	48 83 c4 60          	add    $0x60,%rsp
   f:	5b                   	pop    %rbx
  10:	5d                   	pop    %rbp
  11:	41 5c                	pop    %r12
  13:	41 5d                	pop    %r13
  15:	c3                   	retq
  16:	c3                   	retq
  17:	e9 0a 7a 37 07       	jmpq   0x7377a26
  1c:	cc                   	int3
  1d:	cc                   	int3
  1e:	cc                   	int3
  1f:	cc                   	int3
  20:	cc                   	int3
  21:	cc                   	int3
  22:	cc                   	int3
  23:	cc                   	int3
  24:	cc                   	int3
  25:	cc                   	int3
  26:	48 8b 0c 24          	mov    (%rsp),%rcx
* 2a:	89 f6                	mov    %esi,%esi <-- trapping instruction
  2c:	31 d2                	xor    %edx,%edx
  2e:	e9 03 f9 ff ff       	jmpq   0xfffff936
  33:	0f 1f 00             	nopl   (%rax)
  36:	48 8b 0c 24          	mov    (%rsp),%rcx
  3a:	89 f6                	mov    %esi,%esi
  3c:	ba                   	.byte 0xba
  3d:	01 00                	add    %eax,(%rax)