------------[ cut here ]------------
WARNING: CPU: 1 PID: 12316 at kernel/rcu/tree_stall.h:990 rcu_check_gp_start_stall.part.0+0x1c4/0x4b0 kernel/rcu/tree_stall.h:990
Modules linked in:
CPU: 1 PID: 12316 Comm: syz-executor.2 Not tainted 6.9.0-rc5-syzkaller-00042-ge88c4cfcb7b8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:rcu_check_gp_start_stall.part.0+0x1c4/0x4b0 kernel/rcu/tree_stall.h:990
Code: 88 61 01 00 00 be 04 00 00 00 48 c7 c7 00 8f 8d 94 e8 30 1e 74 00 b8 01 00 00 00 87 05 65 ce 16 13 85 c0 0f 85 3d 01 00 00 90 <0f> 0b 90 48 81 fd c0 fe 9b 8d 48 c7 c3 98 54 c0 8f 74 5a 48 b8 00
RSP: 0018:ffffc90000a08df0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000002904 RCX: ffffffff8176c090
RDX: fffffbfff291b1e0 RSI: 0000000000000004 RDI: ffffffff948d8f00
RBP: ffffffff8d9bfec0 R08: 0000000000000001 R09: fffffbfff291b1e0
R10: 0000000000000003 R11: 0000000000000000 R12: 1ffffffff1ac1e40
R13: 0000000000000246 R14: ffffffff8d9bfec0 R15: ffff8880b953f992
FS:  00007fec4996f6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fec4996ef00 CR3: 000000006894a000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 rcu_check_gp_start_stall kernel/rcu/tree_stall.h:953 [inline]
 rcu_core+0x4f2/0x16b0 kernel/rcu/tree.c:2466
 __do_softirq+0x21b/0x922 kernel/softirq.c:554
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu kernel/softirq.c:633 [inline]
 irq_exit_rcu+0xb9/0x120 kernel/softirq.c:645
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 90 f3 0f 1e fa 53 48 8b 74 24 08 48 89 fb 48 83 c7 18 e8 4a 43 8d f6 48 89 df e8 a2 bf 8d f6 e8 3d 45 b6 f6 fb bf 01 00 00 00 <e8> 72 fd 7e f6 65 8b 05 33 fe 23 75 85 c0 74 06 5b e9 6c 67 30 00
RSP: 0018:ffffc90008fe7cf0 EFLAGS: 00000202
RAX: 000000000341317f RBX: ffff8880292ab780 RCX: 1ffffffff1f7fbc9
RDX: 0000000000000000 RSI: ffffffff8b2cbf40 RDI: 0000000000000001
RBP: ffff8880292abb80 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8fc020d7 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000021 R14: ffff8880292ab780 R15: ffff8880292ab780
 spin_unlock_irq include/linux/spinlock.h:401 [inline]
 get_signal+0x1e3e/0x2710 kernel/signal.c:2914
 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x14a/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xdc/0x260 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fec48c7dea9
Code: 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 01 48
RSP: 002b:00007fec4996f0c8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fec48dabf80 RCX: 00007fec48c7dea9
RDX: 000000002006b000 RSI: 2420f90420901bbf RDI: 0000000000000000
RBP: 00007fec48cca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fec48dabf80 R15: 00007ffe7b800058
 </TASK>
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	f3 0f 1e fa          	endbr64
   5:	53                   	push   %rbx
   6:	48 8b 74 24 08       	mov    0x8(%rsp),%rsi
   b:	48 89 fb             	mov    %rdi,%rbx
   e:	48 83 c7 18          	add    $0x18,%rdi
  12:	e8 4a 43 8d f6       	call   0xf68d4361
  17:	48 89 df             	mov    %rbx,%rdi
  1a:	e8 a2 bf 8d f6       	call   0xf68dbfc1
  1f:	e8 3d 45 b6 f6       	call   0xf6b64561
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 72 fd 7e f6       	call   0xf67efda1 <-- trapping instruction
  2f:	65 8b 05 33 fe 23 75 	mov    %gs:0x7523fe33(%rip),%eax        # 0x7523fe69
  36:	85 c0                	test   %eax,%eax
  38:	74 06                	je     0x40
  3a:	5b                   	pop    %rbx
  3b:	e9 6c 67 30 00       	jmp    0x3067ac