rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (0 ticks this GP) idle=aa54/1/0x4000000000000000 softirq=88821/88821 fqs=0
rcu: 	(detected by 0, t=10504 jiffies, g=82001, q=39 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 17255 Comm: syz.2.3601 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__remove_hrtimer kernel/time/hrtimer.c:1115 [inline]
RIP: 0010:__run_hrtimer kernel/time/hrtimer.c:1757 [inline]
RIP: 0010:__hrtimer_run_queues+0x3ad/0xc60 kernel/time/hrtimer.c:1841
Code: 85 41 05 00 00 44 8b 2a bf 20 00 00 00 44 89 ee e8 e8 62 12 00 49 83 fd 1f 0f 87 4b 05 00 00 e8 99 5e 12 00 41 bf fe ff ff ff <44> 89 e9 41 d3 c7 49 83 c6 44 4c 89 f0 48 c1 e8 03 49 bd 00 00 00
RSP: 0018:ffffc90000a08d40 EFLAGS: 00000006
RAX: ffffffff81ada567 RBX: ffff8880b8927c08 RCX: ffff888073a81e40
RDX: 0000000000010000 RSI: 0000000000000001 RDI: 0000000000000020
RBP: ffffc90000a08e90 R08: ffffffff8f7cd277 R09: 1ffffffff1ef9a4e
R10: dffffc0000000000 R11: fffffbfff1ef9a4f R12: ffff888140ede340
R13: 0000000000000001 R14: ffff8880b8927ac0 R15: 00000000fffffffe
FS:  0000555583e42500(0000) GS:ffff88812623e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000007f030 CR3: 0000000062a33000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1903
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1041 [inline]
 __sysvec_apic_timer_interrupt+0x10b/0x410 arch/x86/kernel/apic/apic.c:1058
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1052
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110 kernel/locking/spinlock.c:194
Code: 74 05 e8 eb 1b 7f f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 53 4a 47 f6 65 8b 05 dc 78 25 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc9000412fac0 EFLAGS: 00000206
RAX: 9dad41bc1fd55e00 RBX: 0000000000000212 RCX: 9dad41bc1fd55e00
RDX: 0000000000000006 RSI: ffffffff8d70bf39 RDI: 0000000000000001
RBP: ffffc9000412fb50 R08: ffffffff8f7cd277 R09: 1ffffffff1ef9a4e
R10: dffffc0000000000 R11: fffffbfff1ef9a4f R12: dffffc0000000000
R13: ffff8880226e45e8 R14: ffff8880226e45a8 R15: 1ffff92000825f58
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 __wake_up_common_lock+0x190/0x1f0 kernel/sched/wait.c:127
 netlink_release+0x117d/0x1b40 net/netlink/af_netlink.c:753
 __sock_release net/socket.c:662 [inline]
 sock_close+0xc3/0x240 net/socket.c:1455
 __fput+0x44c/0xa70 fs/file_table.c:468
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xe9/0x130 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0bbf38efc9
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:00007ffdd0cc36a8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00000000000e9966 RCX: 00007f0bbf38efc9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f0bbf5e7da0 R08: 0000000000000001 R09: 00000011d0cc399f
R10: 0000001b2f820000 R11: 0000000000000246 R12: 00007f0bbf5e5fac
R13: 00007f0bbf5e5fa0 R14: ffffffffffffffff R15: 00007ffdd0cc37c0
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10503 jiffies! g82001 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=76697
rcu: rcu_preempt kthread starved for 10504 jiffies! g82001 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:27112 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5325 [inline]
 __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929
 __schedule_loop kernel/sched/core.c:7011 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:7026
 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2083
 rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2285
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>