rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10495 ticks this GP) idle=b46c/1/0x4000000000000000 softirq=117420/117420 fqs=3418
	(t=10503 jiffies g=173769 q=2684 ncpus=2)
CPU: 0 PID: 28002 Comm: syz.5.6441 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__setup_rt_frame arch/x86/kernel/signal.c:490 [inline]
RIP: 0010:setup_rt_frame arch/x86/kernel/signal.c:784 [inline]
RIP: 0010:handle_signal arch/x86/kernel/signal.c:828 [inline]
RIP: 0010:arch_do_signal_or_restart+0xd61/0x1310 arch/x86/kernel/signal.c:873
Code: 40 80 3c 01 00 4c 8b 74 24 18 74 08 4c 89 f7 e8 15 5c a6 00 49 8b 06 49 89 84 24 30 01 00 00 0f 01 ca f6 84 24 48 01 00 00 04 <49> be 00 00 00 00 00 fc ff df 4c 8d ac 24 40 01 00 00 74 1e 49 8d
RSP: 0018:ffffc900033ffca0 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 1ffff9200067ffac RCX: 1ffff110036fa8a4
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900033fffd8
RBP: ffffc900033ffec0 R08: 0000000000000000 R09: 1ffff9200067ff71
R10: dffffc0000000000 R11: fffff5200067ff72 R12: 00007ffd8b8765f8
R13: ffff88801b7d54e8 R14: ffff88801b7d4520 R15: ffffc900033ffff8
FS:  000055556f3ce500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f921ff8 CR3: 0000000073424000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f27a7c6e482
Code: 73 13 66 0f 1f 44 00 00 48 8b 70 f8 48 83 e8 08 48 39 f2 72 f3 48 39 c3 73 3e 48 89 33 48 89 c6 48 83 c3 08 48 89 08 48 8b 0b <48> 8b 55 00 eb c0 48 39 f2 72 a4 48 39 f0 0f 83 c0 00 00 00 48 89
RSP: 002b:00007ffd8b876ba0 EFLAGS: 00000202
RAX: 00007f27a77499a0 RBX: 00007f27a76a9468 RCX: ffffffff812fb119
RDX: ffffffff8173c3fb RSI: 00007f27a77499a0 RDI: 00007f27a75fd000
RBP: 00007f27a73fd008 R08: 00007f27a8010000 R09: 00007f27a8026128
R10: 0000000000000001 R11: 0000000000000005 R12: 00007f27a77fd000
R13: 0000000000000023 R14: 000000000007ffff R15: 0000000000000001
 </TASK>