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WARNING: CPU: 1 PID: 8140 at kernel/rcu/tree_stall.h:989 rcu_check_gp_start_stall.part.0+0x1c4/0x4b0 kernel/rcu/tree_stall.h:989
Modules linked in:
CPU: 1 UID: 0 PID: 8140 Comm: syz.4.572 Not tainted 6.15.0-rc4-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
RIP: 0010:rcu_check_gp_start_stall.part.0+0x1c4/0x4b0 kernel/rcu/tree_stall.h:989
Code: 88 61 01 00 00 be 04 00 00 00 48 c7 c7 60 35 b3 9a e8 d0 5e 7f 00 b8 01 00 00 00 87 05 05 e0 11 19 85 c0 0f 85 3d 01 00 00 90 <0f> 0b 90 48 c7 c3 b4 1f 85 90 48 81 fd 80 a3 3c 8e 74 5a 48 b8 00
RSP: 0018:ffffc90000a08df0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000002904 RCX: ffffffff81a15550
RDX: fffffbfff35666ac RSI: 0000000000000004 RDI: ffffffff9ab33560
RBP: ffffffff8e3ca380 R08: 0000000000000001 R09: fffffbfff35666ac
R10: 0000000000000003 R11: 0000000000000000 R12: 1ffffffff1c02240
R13: 0000000000000246 R14: ffffffff8e3ca380 R15: ffff8880b853ad92
FS:  00007f1140c5e6c0(0000) GS:ffff888124ae4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c31292e CR3: 000000007d054000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 rcu_check_gp_start_stall kernel/rcu/tree_stall.h:952 [inline]
 rcu_core+0x4cf/0x14e0 kernel/rcu/tree.c:2819
 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0x109/0x170 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x4af/0x1290 kernel/smp.c:885
Code: 48 48 8b 44 24 20 49 89 c4 83 e0 07 49 c1 ec 03 48 89 c5 4d 01 f4 83 c5 03 e8 5d 17 0c 00 f3 90 41 0f b6 04 24 40 38 c5 7c 08 <84> c0 0f 85 de 0b 00 00 8b 43 08 31 ff 83 e0 01 41 89 c5 89 c6 e8
RSP: 0018:ffffc90004c07ad8 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffff8880b8441720 RCX: ffffc9000cb12000
RDX: 0000000000080000 RSI: ffffffff81af19a3 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed10170882e5
R13: 0000000000000001 R14: dffffc0000000000 R15: ffff8880b853b040
 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1052
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2455 [inline]
 text_poke_bp_batch+0x220/0x760 arch/x86/kernel/alternative.c:2665
 text_poke_flush arch/x86/kernel/alternative.c:2856 [inline]
 text_poke_flush arch/x86/kernel/alternative.c:2853 [inline]
 text_poke_finish+0x30/0x40 arch/x86/kernel/alternative.c:2863
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 jump_label_update+0x376/0x550 kernel/jump_label.c:919
 static_key_slow_inc_cpuslocked kernel/jump_label.c:168 [inline]
 static_key_slow_inc_cpuslocked+0x82/0x120 kernel/jump_label.c:151
 static_key_slow_inc+0x1a/0x30 kernel/jump_label.c:191
 io_uring_create io_uring/io_uring.c:3695 [inline]
 io_uring_setup+0x187b/0x2090 io_uring/io_uring.c:3834
 __do_sys_io_uring_setup io_uring/io_uring.c:3868 [inline]
 __se_sys_io_uring_setup io_uring/io_uring.c:3859 [inline]
 __x64_sys_io_uring_setup+0xc2/0x170 io_uring/io_uring.c:3859
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f113fd8e969
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:00007f1140c5e038 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 00007f113ffb5fa0 RCX: 00007f113fd8e969
RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000003eae
RBP: 00007f113fe10ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f113ffb5fa0 R15: 00007fffbb580e68
 </TASK>
----------------
Code disassembly (best guess):
   0:	48                   	rex.W
   1:	48 8b 44 24 20       	mov    0x20(%rsp),%rax
   6:	49 89 c4             	mov    %rax,%r12
   9:	83 e0 07             	and    $0x7,%eax
   c:	49 c1 ec 03          	shr    $0x3,%r12
  10:	48 89 c5             	mov    %rax,%rbp
  13:	4d 01 f4             	add    %r14,%r12
  16:	83 c5 03             	add    $0x3,%ebp
  19:	e8 5d 17 0c 00       	call   0xc177b
  1e:	f3 90                	pause
  20:	41 0f b6 04 24       	movzbl (%r12),%eax
  25:	40 38 c5             	cmp    %al,%bpl
  28:	7c 08                	jl     0x32
* 2a:	84 c0                	test   %al,%al <-- trapping instruction
  2c:	0f 85 de 0b 00 00    	jne    0xc10
  32:	8b 43 08             	mov    0x8(%rbx),%eax
  35:	31 ff                	xor    %edi,%edi
  37:	83 e0 01             	and    $0x1,%eax
  3a:	41 89 c5             	mov    %eax,%r13d
  3d:	89 c6                	mov    %eax,%esi
  3f:	e8                   	.byte 0xe8