rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=9bdc/1/0x4000000000000000 softirq=9935/9937 fqs=5249
	(t=10501 jiffies g=9017 q=13546 ncpus=2)
CPU: 1 PID: 4445 Comm: syz.0.17 Not tainted 6.1.148-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:xrstor_from_user_sigframe arch/x86/kernel/fpu/xstate.h:304 [inline]
RIP: 0010:__restore_fpregs_from_user arch/x86/kernel/fpu/signal.c:259 [inline]
RIP: 0010:restore_fpregs_from_user arch/x86/kernel/fpu/signal.c:289 [inline]
RIP: 0010:__fpu_restore_sig arch/x86/kernel/fpu/signal.c:359 [inline]
RIP: 0010:fpu__restore_sig+0x5f3/0x1190 arch/x86/kernel/fpu/signal.c:493
Code: a1 00 49 8b 7d 00 4c 8b 6c 24 28 4c 89 ee ba 01 00 00 00 e8 2f 33 00 00 0f 01 cb 4c 89 f7 44 89 e8 48 8b 54 24 48 48 0f ae 2f <31> c0 41 89 c5 0f 01 ca 48 23 5c 24 58 31 ff 44 89 ee e8 36 84 51
RSP: 0018:ffffc90003357b40 EFLAGS: 00040282
RAX: 0000000000000007 RBX: 0000000000000007 RCX: ffff88802d5cbb80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffd3db4d940
RBP: ffffc90003357cf0 R08: 0000000000000000 R09: fffff5200066af90
R10: fffff5200066af90 R11: 1ffff9200066af8a R12: 1ffff9200066af74
R13: 0000000000000007 R14: 00007ffd3db4d940 R15: 1ffff11005ab9a5e
FS:  0000555589b65500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000002727b000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 restore_sigcontext arch/x86/kernel/signal.c:140 [inline]
 __ia32_sys_rt_sigreturn+0x649/0x790 arch/x86/kernel/signal.c:675
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fef5018ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd3db4dd28 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fef503b5fa8 RCX: 00007fef5018ebe9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fef503b5fac
RBP: 0000000000000000 R08: 0038ec8c841c053d R09: 000000073db4e01f
R10: 0000000000000005 R11: 0000000000000246 R12: 00007fef503b5fac
R13: 00007fef503b5fa0 R14: 0000000000000095 R15: 0000000000000003
 </TASK>