rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=f25/1/0x4000000000000000 softirq=65620/65621 fqs=5236 
	(t=10502 jiffies g=128717 q=2111)
NMI backtrace for cpu 1
CPU: 1 PID: 24199 Comm: syz-executor.5 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
 print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
 rcu_pending kernel/rcu/tree.c:3878 [inline]
 rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2597
 update_process_times+0x16d/0x200 kernel/time/timer.c:1785
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x1c0/0xe50 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>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:add_rchar include/linux/sched/xacct.h:14 [inline]
RIP: 0010:__kernel_read+0x77f/0xb30 fs/read_write.c:444
Code: b8 00 00 00 00 00 fc ff df 65 48 8b 1c 25 40 70 02 00 48 8d bb 30 12 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 8d 02 00 00 <4c> 01 ab 30 12 00 00 e8 45 8d ae ff 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90016f0f438 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffff88801ed90000 RCX: ffffc90013ed0000
RDX: 1ffff11003db2246 RSI: ffffffff81c938b4 RDI: ffff88801ed91230
RBP: ffff88801dab1318 R08: 0000000000000000 R09: ffff8880159987d7
R10: ffffffff81c9380d R11: 0000000000000000 R12: ffff88807c330280
R13: 0000000000001000 R14: 0000000000000000 R15: 1ffff92002de1e8a
 integrity_kernel_read+0x7b/0xb0 security/integrity/iint.c:199
 ima_calc_file_hash_tfm+0x2aa/0x3b0 security/integrity/ima/ima_crypto.c:484
 ima_calc_file_shash security/integrity/ima/ima_crypto.c:515 [inline]
 ima_calc_file_hash+0x19d/0x4b0 security/integrity/ima/ima_crypto.c:572
 ima_collect_measurement+0x4c9/0x570 security/integrity/ima/ima_api.c:254
 process_measurement+0xd37/0x1920 security/integrity/ima/ima_main.c:337
 ima_file_mmap+0x10a/0x130 security/integrity/ima/ima_main.c:412
 security_mmap_file+0x15f/0x1b0 security/security.c:1586
 vm_mmap_pgoff+0xd3/0x290 mm/util.c:515
 ksys_mmap_pgoff+0x269/0x620 mm/mmap.c:1624
 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: 0033:0x7f63319b0ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f632ef26188 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f6331ac3f60 RCX: 00007f63319b0ae9
RDX: 0000000000000004 RSI: 00007ffffffff000 RDI: 0000000020c00000
RBP: 00007f6331a0af45 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000040032 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6331ff7b2f R14: 00007f632ef26300 R15: 0000000000022000
 </TASK>
----------------
Code disassembly (best guess):
   0:	b8 00 00 00 00       	mov    $0x0,%eax
   5:	00 fc                	add    %bh,%ah
   7:	ff                   	(bad)
   8:	df 65 48             	fbld   0x48(%rbp)
   b:	8b 1c 25 40 70 02 00 	mov    0x27040,%ebx
  12:	48 8d bb 30 12 00 00 	lea    0x1230(%rbx),%rdi
  19:	48 89 fa             	mov    %rdi,%rdx
  1c:	48 c1 ea 03          	shr    $0x3,%rdx
  20:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
  24:	0f 85 8d 02 00 00    	jne    0x2b7
* 2a:	4c 01 ab 30 12 00 00 	add    %r13,0x1230(%rbx) <-- trapping instruction
  31:	e8 45 8d ae ff       	callq  0xffae8d7b
  36:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  3d:	fc ff df