------------[ cut here ]------------
WARNING: CPU: 0 PID: 20564 at kernel/rcu/tree_stall.h:969 rcu_check_gp_start_stall+0x2c8/0x450 kernel/rcu/tree_stall.h:954
Modules linked in:
CPU: 0 PID: 20564 Comm: syz-executor.2 Not tainted 6.1.72-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:rcu_check_gp_start_stall+0x2c8/0x450 kernel/rcu/tree_stall.h:969
Code: c7 c7 40 df cc 91 be 04 00 00 00 e8 02 f7 6d 00 b8 01 00 00 00 87 05 a7 11 59 10 85 c0 0f 85 1c ff ff ff 48 c7 c0 40 f1 12 8d <0f> 0b 49 39 c7 74 47 48 c7 c0 a4 82 73 8e 48 c1 e8 03 42 0f b6 04
RSP: 0018:ffffc90000007b98 EFLAGS: 00010046
RAX: ffffffff8d12f140 RBX: 0000000100017895 RCX: ffffffff8173cd8e
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff91ccdf40
RBP: ffffc90000007df0 R08: dffffc0000000000 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8880b983acd2 R14: 0000000000000246 R15: ffffffff8d12f140
FS:  00007fcad66fd6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcad66fcf80 CR3: 00000000504b6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rcu_core+0x699/0x17e0 kernel/rcu/tree.c:2519
 __do_softirq+0x2e9/0xa4c kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x155/0x240 kernel/softirq.c:650
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: 61 b7 f5 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 9e a9 d5 f6 48 89 df e8 06 e7 d6 f6 e8 31 6f fc f6 fb bf 01 00 00 00 <e8> e6 75 c9 f6 65 8b 05 77 ae 6d 75 85 c0 74 02 5b c3 e8 b4 cc 6b
RSP: 0018:ffffc900073a7b30 EFLAGS: 00000286
RAX: 9785bc43a5c87900 RBX: ffff888027e965c0 RCX: ffffffff91c89103
RDX: dffffc0000000000 RSI: ffffffff8aebe640 RDI: 0000000000000001
RBP: ffffc900073a7c70 R08: dffffc0000000000 R09: ffffed1004fd2cb9
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11004fd2d4b
R13: 000000001c000004 R14: 0000000000000021 R15: ffff888027e96a58
 spin_unlock_irq include/linux/spinlock.h:400 [inline]
 get_signal+0x154b/0x17d0 kernel/signal.c:2865
 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcad5a7cda7
Code: 14 25 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89
RSP: 002b:00007fcad66fd178 EFLAGS: 00000246
RAX: 00000000000000ca RBX: 00007fcad5babf88 RCX: 00007fcad5a7cda9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fcad5babf88
RBP: 00007fcad5babf80 R08: 00007fcad66fd6c0 R09: 00007fcad66fd6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcad5babf8c
R13: 000000000000000b R14: 00007ffe5e8a60d0 R15: 00007ffe5e8a61b8
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	b7 f5                	mov    $0xf5,%bh
   2:	ff 90 53 48 89 fb    	call   *-0x476b7ad(%rax)
   8:	48 83 c7 18          	add    $0x18,%rdi
   c:	48 8b 74 24 08       	mov    0x8(%rsp),%rsi
  11:	e8 9e a9 d5 f6       	call   0xf6d5a9b4
  16:	48 89 df             	mov    %rbx,%rdi
  19:	e8 06 e7 d6 f6       	call   0xf6d6e724
  1e:	e8 31 6f fc f6       	call   0xf6fc6f54
  23:	fb                   	sti
  24:	bf 01 00 00 00       	mov    $0x1,%edi
* 29:	e8 e6 75 c9 f6       	call   0xf6c97614 <-- trapping instruction
  2e:	65 8b 05 77 ae 6d 75 	mov    %gs:0x756dae77(%rip),%eax        # 0x756daeac
  35:	85 c0                	test   %eax,%eax
  37:	74 02                	je     0x3b
  39:	5b                   	pop    %rbx
  3a:	c3                   	ret
  3b:	e8                   	.byte 0xe8
  3c:	b4 cc                	mov    $0xcc,%ah
  3e:	6b                   	.byte 0x6b