------------[ cut here ]------------
WARNING: CPU: 0 PID: 11895 at kernel/rcu/tree_stall.h:937 rcu_check_gp_start_stall+0x2c8/0x450 kernel/rcu/tree_stall.h:922
Modules linked in:
CPU: 0 PID: 11895 Comm: syz-executor.2 Not tainted 5.15.160-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:rcu_check_gp_start_stall+0x2c8/0x450 kernel/rcu/tree_stall.h:937
Code: c7 c7 60 4c 43 91 be 04 00 00 00 e8 d2 92 5e 00 b8 01 00 00 00 87 05 b7 b2 d7 0f 85 c0 0f 85 1c ff ff ff 48 c7 c0 80 3a 92 8c <0f> 0b 49 39 c7 74 47 48 c7 c0 04 9a e4 8d 48 c1 e8 03 42 0f b6 04
RSP: 0018:ffffc90000007bd8 EFLAGS: 00010046
RAX: ffffffff8c923a80 RBX: 0000000100005ac9 RCX: ffffffff816b999e
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff91434c60
RBP: ffffc90000007e10 R08: dffffc0000000000 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: 0000000000000246 R15: ffffffff8c923a80
FS:  0000555555e82480(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001200 CR3: 000000001d5b5000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rcu_core+0x657/0x1650 kernel/rcu/tree.c:2758
 __do_softirq+0x3b3/0x93a kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x155/0x240 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:arch_do_signal_or_restart+0x2f/0x1890 arch/x86/kernel/signal.c:864
Code: 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec e0 01 00 00 41 89 f6 48 89 fb 65 48 8b 04 25 28 00 00 00 48 89 84 24 c0 01 00 00 <49> bd 00 00 00 00 00 fc ff df 4c 8d bc 24 40 01 00 00 48 c7 84 24
RSP: 0018:ffffc90003167ca0 EFLAGS: 00000286
RAX: 1574fb9a5a5d9000 RBX: ffffc90003167f58 RCX: ffffffff913eff03
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffc90003167f58
RBP: ffffc90003167eb8 R08: ffffffff8186dcf0 R09: ffffffff8150f775
R10: 0000000000000003 R11: ffff888022ce1dc0 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: ffff888022ce1dc0
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fc7e924db60
Code: 81 e5 00 f0 ff ff 80 3d 75 f5 16 00 00 75 3f be 00 00 00 80 48 8d 3c 32 48 81 ff ff ff ff 7e 0f 87 1f 02 00 00 25 ff 0f 00 00 <83> f0 3d 8d 3c c0 89 f8 c1 e8 04 31 f8 69 c0 2d eb d4 27 89 c7 c1
RSP: 002b:00007ffdc2936fe0 EFLAGS: 00000202
RAX: 0000000000000e45 RBX: 00007fc7e93c1018 RCX: 00000000000281be
RDX: ffffffff818dbe4a RSI: 0000000080000000 RDI: 00000000018dbe4a
RBP: 00000000818db000 R08: 0000001b2f020000 R09: 0000000000001a92
R10: 00000000818dba96 R11: 0000000000013b22 R12: 00000000000281be
R13: 0000000000000001 R14: 00007fc7e93b5000 R15: ffffffff818dbe4a
 </TASK>
----------------
Code disassembly (best guess):
   0:	57                   	push   %rdi
   1:	41 56                	push   %r14
   3:	41 55                	push   %r13
   5:	41 54                	push   %r12
   7:	53                   	push   %rbx
   8:	48 83 e4 e0          	and    $0xffffffffffffffe0,%rsp
   c:	48 81 ec e0 01 00 00 	sub    $0x1e0,%rsp
  13:	41 89 f6             	mov    %esi,%r14d
  16:	48 89 fb             	mov    %rdi,%rbx
  19:	65 48 8b 04 25 28 00 	mov    %gs:0x28,%rax
  20:	00 00
  22:	48 89 84 24 c0 01 00 	mov    %rax,0x1c0(%rsp)
  29:	00
* 2a:	49 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%r13 <-- trapping instruction
  31:	fc ff df
  34:	4c 8d bc 24 40 01 00 	lea    0x140(%rsp),%r15
  3b:	00
  3c:	48                   	rex.W
  3d:	c7                   	.byte 0xc7
  3e:	84                   	.byte 0x84
  3f:	24                   	.byte 0x24