rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=7674/1/0x4000000000000000 softirq=183729/183729 fqs=4800
	(t=10500 jiffies g=286125 q=2599 ncpus=2)
CPU: 1 PID: 21128 Comm: syz.4.21627 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:212
Code: 2e 0f 1f 84 00 00 00 00 00 90 53 48 89 fb e8 17 00 00 00 48 8b 3d 80 96 9e 0c 48 89 de 5b e9 f7 65 4f 00 00 00 cc cc 00 00 cc <48> 8b 04 24 65 48 8b 0d d4 98 81 7e 65 8b 15 d5 98 81 7e 81 e2 00
RSP: 0018:ffffc9000d8f7c60 EFLAGS: 00000246
RAX: ffffffff812f16fb RBX: ffff88807a1a3b80 RCX: ffff88807a1a3b80
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1c3ed56
R10: fffffbfff1c3ed56 R11: 1ffffffff1c3ed55 R12: ffff88807a1a5480
R13: dffffc0000000000 R14: ffff88807a1a5480 R15: ffffffff812f16d6
FS:  00007f456d9566c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000006b000 CR3: 0000000035a0d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 fpu__clear_user_states+0x73/0x260 arch/x86/kernel/fpu/core.c:722
 handle_signal arch/x86/kernel/signal.c:844 [inline]
 arch_do_signal_or_restart+0xeb0/0x1240 arch/x86/kernel/signal.c:873
 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:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f456cbb7e00
Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d 0a 35 08 00 e8 e5 8e f8 ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48
RSP: 002b:00007f456d955b38 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f456cde5fa8 RCX: 00007f456cb8f6c9
RDX: 00007f456d955b40 RSI: 00007f456d955c70 RDI: 0000000000000021
RBP: 00007f456cde5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f456cde6038 R14: 00007ffe9feaa7e0 R15: 00007ffe9feaa8c8
 </TASK>