rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 3556 jiffies s: 1625 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4393 Comm: syz.3.10 Not tainted 6.1.140-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:207 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:147 [inline]
RIP: 0010:wrmsr arch/x86/include/asm/msr.h:254 [inline]
RIP: 0010:native_apic_msr_write+0x35/0x50 arch/x86/include/asm/apic.h:206
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 89 f6 31 d2 e9 df 65 f8 02 66 2e 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc900000073b0 EFLAGS: 00000046
RAX: 00000000000000b9 RBX: 00000000000000b9 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 00000000000000b9 RDI: 0000000000000838
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1bfd006
R10: fffffbfff1bfd006 R11: 1ffffffff1bfd005 R12: dffffc0000000000
R13: 0000000010006d0d R14: ffffffff8c3d0b30 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb544bedf98 CR3: 000000007bb6d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 apic_write arch/x86/include/asm/apic.h:394 [inline]
 lapic_next_event+0x5b/0x70 arch/x86/kernel/apic/apic.c:478
 clockevents_program_event+0x1bc/0x310 kernel/time/clockevents.c:334
 hrtimer_interrupt+0x4de/0x8d0 kernel/time/hrtimer.c:1830
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline]
 __sysvec_apic_timer_interrupt+0x153/0x5a0 arch/x86/kernel/apic/apic.c:1124
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1118
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xa5/0x100 kernel/locking/spinlock.c:194
Code: 74 05 e8 2e f7 6d f7 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> b6 71 3e f7 65 8b 05 57 33 e9 75 85 c0 74 3c 48 c7 04 24 0e 36
RSP: 0018:ffffc90000007620 EFLAGS: 00000206
RAX: 92faae5e51dee800 RBX: 0000000000000a02 RCX: 92faae5e51dee800
RDX: dffffc0000000000 RSI: ffffffff8a6c0000 RDI: 0000000000000001
RBP: ffffc900000076b0 R08: dffffc0000000000 R09: fffffbfff211704f
R10: fffffbfff211704f R11: 1ffffffff211704e R12: dffffc0000000000
R13: ffff88807daedc00 R14: ffffffff96c80140 R15: 1ffff92000000ec4
 __debug_check_no_obj_freed lib/debugobjects.c:988 [inline]
 debug_check_no_obj_freed+0x515/0x530 lib/debugobjects.c:1009
 slab_free_hook mm/slub.c:1699 [inline]
 slab_free_freelist_hook+0xd2/0x1a0 mm/slub.c:1750
 slab_free mm/slub.c:3661 [inline]
 __kmem_cache_free+0xb6/0x1f0 mm/slub.c:3674
 skb_free_head net/core/skbuff.c:762 [inline]
 skb_release_data+0x5db/0x7c0 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:1220 [inline]
 ip6_mc_input+0xa7a/0xc70 net/ipv6/ip6_input.c:589
 NF_HOOK+0x2ff/0x390 include/linux/netfilter.h:302
 __netif_receive_skb_one_core net/core/dev.c:5569 [inline]
 __netif_receive_skb+0xcc/0x290 net/core/dev.c:5683
 process_backlog+0x37c/0x6e0 net/core/dev.c:6011
 __napi_poll+0xc0/0x460 net/core/dev.c:6578
 napi_poll net/core/dev.c:6645 [inline]
 net_rx_action+0x5b1/0xad0 net/core/dev.c:6759
 handle_softirqs+0x2a1/0x920 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:661
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:673
 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:do_raw_spin_unlock+0x0/0x230 kernel/locking/spinlock_debug.c:138
Code: ab 08 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 6f ff ff ff e8 03 1d 6e 00 e9 65 ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <55> 41 57 41 56 41 55 41 54 53 48 89 fb 49 bc 00 00 00 00 00 fc ff
RSP: 0018:ffffc90004217488 EFLAGS: 00000246
RAX: 92faae5e51dee800 RBX: ffff88802661f9c0 RCX: 92faae5e51dee800
RDX: 0000000000000001 RSI: ffffffff8a6c1180 RDI: ffff88802661f9c0
RBP: ffffc900042175f0 R08: dffffc0000000000 R09: fffffbfff1bfd006
R10: fffffbfff1bfd006 R11: 1ffffffff1bfd005 R12: 1ffff11004c56b22
R13: 00007f6c24600000 R14: 800000005bdcd007 R15: dffffc0000000000
 __raw_spin_unlock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_unlock+0x1a/0x40 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 zap_pte_range mm/memory.c:1515 [inline]
 zap_pmd_range mm/memory.c:1574 [inline]
 zap_pud_range mm/memory.c:1603 [inline]
 zap_p4d_range mm/memory.c:1624 [inline]
 unmap_page_range+0x1f5e/0x2500 mm/memory.c:1645
 unmap_vmas+0x22c/0x330 mm/memory.c:1730
 exit_mmap+0x1cc/0x8e0 mm/mmap.c:3238
 __mmput+0x118/0x3c0 kernel/fork.c:1200
 exit_mm+0x1e6/0x2c0 kernel/exit.c:565
 do_exit+0x8b9/0x2400 kernel/exit.c:858
 do_group_exit+0x217/0x2d0 kernel/exit.c:1021
 get_signal+0x1272/0x1350 kernel/signal.c:2871
 arch_do_signal_or_restart+0xb0/0x1230 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xb1/0x140 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: 0033:0x7f6c25b8e969
Code: Unable to access opcode bytes at 0x7f6c25b8e93f.
RSP: 002b:00007f6c26965038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: fffffffffffffff5 RBX: 00007f6c25db5fa0 RCX: 00007f6c25b8e969
RDX: 0000000000000090 RSI: 00002000000004c0 RDI: 0000000000000005
RBP: 00007f6c25c10ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6c25db5fa0 R15: 00007ffc9b49ba78
 </TASK>