rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (0 ticks this GP) idle=d25c/1/0x4000000000000000 softirq=52433/52433 fqs=0
rcu: 	(detected by 1, t=10502 jiffies, g=85865, q=240 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5072 Comm: syz-fuzzer Not tainted 6.9.0-rc4-syzkaller-00274-g3b68086599f8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__lock_acquire+0x166/0x1fd0 kernel/locking/lockdep.c:5041
Code: 83 fa 30 0f 83 d1 13 00 00 44 89 6c 24 5c 44 89 7c 24 68 4c 89 74 24 50 44 8b bc 24 d8 00 00 00 48 c7 c0 00 14 be 92 48 29 c3 <48> c1 fb 03 48 bf 29 5c 8f c2 f5 28 5c 8f 48 0f af fb 41 89 fd 83
RSP: 0018:ffffc90000007a70 EFLAGS: 00000002
RAX: ffffffff92be1400 RBX: 00000000000052d0 RCX: ffffffff946f3603
RDX: 0000000000000007 RSI: dffffc0000000000 RDI: ffff88802388a8d0
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: dffffc0000000000 R11: fffffbfff1f4f6d6 R12: ffff8880b942c898
R13: 0000000000000001 R14: ffff888023889e00 R15: 0000000000000000
FS:  000000c0009c1090(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555708e99b8 CR3: 000000001f2ba000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:170
 __run_hrtimer kernel/time/hrtimer.c:1696 [inline]
 __hrtimer_run_queues+0x67a/0xd50 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 fe 4d 75 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 73 e2 e3 f5 65 8b 05 94 0f 82 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc900035769c0 EFLAGS: 00000206
RAX: 1e14ff8669714e00 RBX: 1ffff920006aed3c RCX: ffffffff8172ecea
RDX: dffffc0000000000 RSI: ffffffff8bcab8a0 RDI: 0000000000000001
RBP: ffffc90003576a50 R08: ffffffff92efb5c7 R09: 1ffffffff25df6b8
R10: dffffc0000000000 R11: fffffbfff25df6b9 R12: dffffc0000000000
R13: 1ffff920006aed38 R14: ffffc900035769e0 R15: 0000000000000246
 __debug_check_no_obj_freed lib/debugobjects.c:998 [inline]
 debug_check_no_obj_freed+0x561/0x580 lib/debugobjects.c:1019
 slab_free_hook mm/slub.c:2078 [inline]
 slab_free mm/slub.c:4280 [inline]
 kmem_cache_free+0xd5/0x2c0 mm/slub.c:4344
 packet_rcv+0x163/0x13e0 net/packet/af_packet.c:2230
 dev_queue_xmit_nit+0xad4/0xc10 net/core/dev.c:2296
 xmit_one net/core/dev.c:3527 [inline]
 dev_hard_start_xmit+0x15f/0x7e0 net/core/dev.c:3547
 sch_direct_xmit+0x2b6/0x5f0 net/sched/sch_generic.c:343
 __dev_xmit_skb net/core/dev.c:3760 [inline]
 __dev_queue_xmit+0x19eb/0x3ca0 net/core/dev.c:4307
 dev_queue_xmit include/linux/netdevice.h:3091 [inline]
 neigh_hh_output include/net/neighbour.h:526 [inline]
 neigh_output include/net/neighbour.h:540 [inline]
 ip_finish_output2+0xd41/0x1380 net/ipv4/ip_output.c:235
 ip_local_out net/ipv4/ip_output.c:129 [inline]
 __ip_queue_xmit+0x118c/0x1b70 net/ipv4/ip_output.c:535
 __tcp_transmit_skb+0x2557/0x3b80 net/ipv4/tcp_output.c:1462
 tcp_transmit_skb net/ipv4/tcp_output.c:1480 [inline]
 tcp_write_xmit+0x1445/0x6100 net/ipv4/tcp_output.c:2792
 __tcp_push_pending_frames+0x9b/0x360 net/ipv4/tcp_output.c:2977
 tcp_sendmsg_locked+0x42cc/0x4d00 net/ipv4/tcp.c:1310
 tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1342
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x1a6/0x270 net/socket.c:745
 sock_write_iter+0x2dd/0x400 net/socket.c:1160
 call_write_iter include/linux/fs.h:2110 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0xa84/0xcb0 fs/read_write.c:590
 ksys_write+0x1a0/0x2c0 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x40720e
Code: 48 83 ec 38 e8 13 00 00 00 48 83 c4 38 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 49 89 f2 48 89 fa 48 89 ce 48 89 df 0f 05 <48> 3d 01 f0 ff ff 76 15 48 f7 d8 48 89 c1 48 c7 c0 ff ff ff ff 48
RSP: 002b:000000c0016d4dd0 EFLAGS: 00000216 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000040720e
RDX: 00000000000000f0 RSI: 000000c00047a200 RDI: 0000000000000003
RBP: 000000c0016d4e10 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000216 R12: 000000c0016d4f50
R13: 0000000000000000 R14: 000000c0000061a0 R15: 000000000000000e
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g85865 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=34738
rcu: rcu_preempt kthread starved for 10502 jiffies! g85865 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
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:24944 pid:16    tgid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x1796/0x4a00 kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6838
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2582
 rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:1663
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1862
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>