rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2670 jiffies s: 205697 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 8334 Comm: syz.7.9167 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:check_preemption_disabled+0x18/0x110 lib/smp_processor_id.c:14
Code: cc cc 48 c7 c7 40 5f df 8a 48 c7 c6 80 5f df 8a eb 00 55 41 57 41 56 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 <65> 8b 05 91 1c d1 75 65 8b 0d 32 72 d1 75 f7 c1 ff ff ff 7f 74 1f
RSP: 0018:ffffc900001dff10 EFLAGS: 00000082
RAX: 2c251f9229fbd300 RBX: ffff8880b8f3bbf0 RCX: ffffffff96c19103
RDX: fffffffe7d33bb01 RSI: ffffffff8adf5f80 RDI: ffffffff8adf5f40
RBP: 0000000000000001 R08: ffffffff8e2118af R09: 1ffffffff1c42315
R10: dffffc0000000000 R11: fffffbfff1c42316 R12: 0000000000000000
R13: dffffc0000000001 R14: 0000000000000000 R15: ffff8880b8f3bbf8
FS:  00007f8df35e56c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdd4d078000 CR3: 0000000063b41000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 irq_work_queue_on+0x11e/0x260 kernel/irq_work.c:143
 rcu_read_unlock_special+0x3c9/0x510 kernel/rcu/tree_plugin.h:678
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 __perf_event_output kernel/events/core.c:7741 [inline]
 perf_event_output_forward+0x271/0x2f0 kernel/events/core.c:7750
 __perf_event_overflow+0x457/0x630 kernel/events/core.c:9496
 perf_swevent_overflow+0x19b/0x230 kernel/events/core.c:9579
 perf_swevent_event+0x458/0x570 kernel/events/core.c:-1
 perf_tp_event+0x36b/0xc10 kernel/events/core.c:10064
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10032
 perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 12 7c 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc900001e0840 EFLAGS: 00000206
RAX: 2c251f9229fbd300 RBX: 1ffff9200003c110 RCX: 2c251f9229fbd300
RDX: dffffc0000000000 RSI: ffffffff8a8c1820 RDI: ffffffff8adf5fa0
RBP: ffffc900001e0938 R08: ffffffff90b12247 R09: 1ffffffff2162448
R10: dffffc0000000000 R11: fffffbfff2162449 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8f3bb00 R15: 0000000000000002
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 page_ext_put+0x91/0xb0 mm/page_ext.c:182
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1487 [inline]
 __free_pages_ok+0xb7b/0xcb0 mm/page_alloc.c:1743
 free_large_kmalloc+0xfd/0x1a0 mm/slab_common.c:913
 skb_free_head net/core/skbuff.c:762 [inline]
 skb_release_data+0x5e9/0x7e0 net/core/skbuff.c:791
 skb_release_all net/core/skbuff.c:856 [inline]
 __kfree_skb net/core/skbuff.c:870 [inline]
 kfree_skb_reason+0x163/0x370 net/core/skbuff.c:893
 kfree_skb include/linux/skbuff.h:1252 [inline]
 skb_queue_purge+0x128/0x1b0 net/core/skbuff.c:3461
 netlink_sock_destruct+0x24/0x190 net/netlink/af_netlink.c:395
 __sk_destruct+0x4f/0x650 net/core/sock.c:2151
 rcu_do_batch kernel/rcu/tree.c:2297 [inline]
 rcu_core+0x9a3/0x1740 kernel/rcu/tree.c:2557
 handle_softirqs+0x291/0x910 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:spin_unlock include/linux/spinlock.h:391 [inline]
RIP: 0010:__text_poke+0x6ac/0x840 arch/x86/kernel/alternative.c:1456
Code: 84 24 80 00 00 00 f7 84 24 80 00 00 00 00 02 00 00 c6 44 03 04 f8 75 75 41 f7 c6 00 02 00 00 74 01 fb 48 8b bc 24 c0 00 00 00 <e8> 7f 6a 0c 09 48 b8 00 00 00 00 00 fc ff df c6 44 03 0c f8 48 c7
RSP: 0018:ffffc90003447aa0 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff92000688f60 RCX: 2c251f9229fbd300
RDX: dffffc0000000000 RSI: ffffffff8a8c1820 RDI: ffff888017466060
RBP: ffffc90003447bd0 R08: ffffffff90b12247 R09: 1ffffffff2162448
R10: dffffc0000000000 R11: fffffbfff2162449 R12: 00002aaaaaaac000
R13: ffff88802e005a00 R14: 0000000000000282 R15: ffffffff818c66d0
 text_poke arch/x86/kernel/alternative.c:1480 [inline]
 text_poke_bp_batch+0x454/0x850 arch/x86/kernel/alternative.c:1796
 text_poke_flush arch/x86/kernel/alternative.c:1965 [inline]
 text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1972
 arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
 static_key_slow_inc_cpuslocked+0x7c/0xe0 kernel/jump_label.c:165
 static_key_slow_inc+0x16/0x30 kernel/jump_label.c:188
 bpf_enable_runtime_stats kernel/bpf/syscall.c:4867 [inline]
 bpf_enable_stats+0x101/0x140 kernel/bpf/syscall.c:4886
 __sys_bpf+0x667/0x780 kernel/bpf/syscall.c:5115
 __do_sys_bpf kernel/bpf/syscall.c:5136 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5134 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5134
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8df279e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8df35e5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f8df2a25fa0 RCX: 00007f8df279e0d9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000020
RBP: 00007f8df2835024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8df2a26038 R14: 00007f8df2a25fa0 R15: 00007fff42b6ad38
 </TASK>