rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10764 ticks this GP) idle=069/1/0x4000000000000000 softirq=9597/9602 fqs=4437 
	(t=10500 jiffies g=11529 q=325)
NMI backtrace for cpu 0
CPU: 0 PID: 4628 Comm: syz.1.88 Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
 rcu_dump_cpu_stacks+0x223/0x390 kernel/rcu/tree_stall.h:349
 print_cpu_stall+0x320/0x600 kernel/rcu/tree_stall.h:633
 check_cpu_stall kernel/rcu/tree_stall.h:727 [inline]
 rcu_pending kernel/rcu/tree.c:3932 [inline]
 rcu_sched_clock_irq+0x8d9/0x1150 kernel/rcu/tree.c:2619
 update_process_times+0x196/0x200 kernel/time/timer.c:1818
 tick_sched_handle kernel/time/tick-sched.c:254 [inline]
 tick_sched_timer+0x386/0x550 kernel/time/tick-sched.c:1473
 __run_hrtimer kernel/time/hrtimer.c:1688 [inline]
 __hrtimer_run_queues+0x55b/0xcf0 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x13b/0x4b0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:should_fail+0x3d/0x4c0 lib/fault-inject.c:119
Code: ff 49 bd 00 00 00 00 00 fc ff df 65 8b 05 33 9a d0 7b a9 00 01 ff 00 0f 84 ea 00 00 00 4c 89 fd 48 c1 ed 03 42 80 7c 2d 00 00 <74> 08 4c 89 ff e8 59 b9 98 fd 49 83 3f 00 0f 84 13 01 00 00 49 8d
RSP: 0018:ffffc9000340fa50 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff11005161de2 RCX: 0000000000080000
RDX: ffffc90010ec4000 RSI: 0000000000000001 RDI: ffffffff8d13bee0
RBP: 1ffffffff1a277dc R08: dffffc0000000000 R09: fffffbfff1c153f6
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888028b0ef14
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffffff8d13bee0
 __copy_from_user include/linux/uaccess.h:110 [inline]
 check_xstate_in_sigframe arch/x86/kernel/fpu/signal.c:33 [inline]
 __fpu_restore_sig arch/x86/kernel/fpu/signal.c:317 [inline]
 fpu__restore_sig+0x1e0/0x1100 arch/x86/kernel/fpu/signal.c:466
 restore_sigcontext+0x638/0x710 arch/x86/kernel/signal.c:139
 __do_sys_rt_sigreturn+0x190/0x250 arch/x86/kernel/signal.c:674
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fcc38163169
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcc35f8a0e8 EFLAGS: 00000246
RAX: fffffffffffffffc RBX: 00007fcc3837c168 RCX: 00007fcc38163169
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fcc3837c168
RBP: 00007fcc3837c160 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcc3837c16c
R13: 0000000000000000 R14: 00007fff61eec410 R15: 00007fff61eec4f8
 </TASK>