rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2689 jiffies s: 125601 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: 20257 Comm: syz.4.3566 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
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 cf 23 07 03 66 2e 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc90000006888 EFLAGS: 00000046
RAX: 000000000000009c RBX: 000000000000009c RCX: 0000000000000838
RDX: 0000000000000000 RSI: 000000000000009c RDI: 0000000000000838
RBP: 0000000000000000 R08: ffffffff8f22dfef R09: 1ffffffff1e45bfd
R10: dffffc0000000000 R11: fffffbfff1e45bfe R12: dffffc0000000000
R13: 00000000100030a7 R14: ffffffff8c88db40 R15: dffffc0000000000
FS:  00007f753ef576c0(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff76afb3ad8 CR3: 000000005b445000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00002000000005c0
DR3: 00002000000005c0 DR6: 00000000ffff0ff0 DR7: 0000000000000600
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+0x561/0x980 kernel/time/hrtimer.c:1890
 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:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:__cant_sleep+0x8c/0x220 kernel/sched/core.c:9985
Code: 3c 08 f8 f3 f3 f3 43 c6 44 3c 08 00 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 f7 44 24 40 00 02 00 00 43 c6 44 3c 08 f8 74 56 <65> 8b 05 e5 07 a8 7e 25 ff ff ff 7f 39 d0 7f 46 48 c7 c0 00 f2 80
RSP: 0018:ffffc90000006ae0 EFLAGS: 00000206
RAX: f2f2f2f8f1f1f1f1 RBX: ffffffff8d9f9820 RCX: ffff88802c19bc00
RDX: 0000000000000000 RSI: 000000000000006a RDI: ffffffff8ab18700
RBP: ffffc90000006b90 R08: 0000000000000001 R09: ffff8880b8c35518
R10: dffffc0000000000 R11: fffffbfff1e45bfe R12: 1ffff92000000d5c
R13: 1ffff92000000d80 R14: ffff8880b8c35518 R15: dffffc0000000000
 trace_call_bpf+0x89/0x6b0 kernel/trace/bpf_trace.c:106
 perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10037
 perf_trace_lock+0x301/0x390 include/trace/events/lock.h:50
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0x8ad/0x920 kernel/locking/lockdep.c:5801
 rcu_lock_release include/linux/rcupdate.h:355 [inline]
 rcu_read_unlock include/linux/rcupdate.h:824 [inline]
 is_bpf_text_address+0x28b/0x2a0 kernel/bpf/core.c:738
 kernel_text_address+0x9c/0xd0 kernel/extable.c:125
 __kernel_text_address+0x9/0x30 kernel/extable.c:79
 unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:323
 arch_stack_walk+0xf2/0x140 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x126/0x1f0 mm/kasan/common.c:237
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1729 [inline]
 slab_free_freelist_hook+0x133/0x1b0 mm/slub.c:1755
 slab_free mm/slub.c:3687 [inline]
 __kmem_cache_free+0xb6/0x200 mm/slub.c:3700
 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]
 consume_skb+0xa2/0x100 net/core/skbuff.c:1038
 netlink_broadcast+0xffd/0x10f0 net/netlink/af_netlink.c:1526
 nlmsg_multicast include/net/netlink.h:1078 [inline]
 nlmsg_notify+0xe3/0x1a0 net/netlink/af_netlink.c:2559
 __neigh_notify+0x1ae/0x300 net/core/neighbour.c:3533
 neigh_cleanup_and_release+0xc6/0x2e0 net/core/neighbour.c:102
 neigh_del net/core/neighbour.c:226 [inline]
 neigh_remove_one+0x5ed/0x700 net/core/neighbour.c:247
 neigh_forced_gc net/core/neighbour.c:280 [inline]
 neigh_alloc net/core/neighbour.c:486 [inline]
 ___neigh_create+0x487/0x2450 net/core/neighbour.c:649
 ip6_finish_output2+0x15b7/0x1680 net/ipv6/ip6_output.c:131
 dst_output include/net/dst.h:456 [inline]
 NF_HOOK include/linux/netfilter.h:302 [inline]
 ndisc_send_skb+0xc04/0x1520 net/ipv6/ndisc.c:513
 addrconf_rs_timer+0x367/0x640 net/ipv6/addrconf.c:3994
 call_timer_fn+0x1ac/0x670 kernel/time/timer.c:1701
 expire_timers kernel/time/timer.c:1752 [inline]
 __run_timers+0x56c/0x810 kernel/time/timer.c:2023
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:2036
 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:lock_is_held_type+0x13a/0x190 kernel/locking/lockdep.c:5866
Code: 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 46 41 f7 c5 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 3c 89 e8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc90005f07298 EFLAGS: 00000206
RAX: 3de3b29133d1dc00 RBX: ffff88802c19bc00 RCX: 3de3b29133d1dc00
RDX: ffff88802c19bc00 RSI: ffffffff8aac2b20 RDI: ffffffff8aff71e0
RBP: 0000000000000001 R08: dffffc0000000000 R09: 1ffffffff236e048
R10: dffffc0000000000 R11: fffffbfff236e049 R12: 0000000000000002
R13: 0000000000000246 R14: ffffffff8db2d8a0 R15: ffff88802c19c730
 bpf_prog_run_array include/linux/bpf.h:1659 [inline]
 trace_call_bpf+0x1f2/0x6b0 kernel/trace/bpf_trace.c:135
 perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10037
 perf_trace_lock+0x301/0x390 include/trace/events/lock.h:50
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0x8ad/0x920 kernel/locking/lockdep.c:5801
 might_alloc include/linux/sched/mm.h:272 [inline]
 slab_pre_alloc_hook+0x31/0x300 mm/slab.h:710
 slab_alloc_node mm/slub.c:3279 [inline]
 slab_alloc mm/slub.c:3367 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3374 [inline]
 kmem_cache_alloc_lru+0x49/0x2e0 mm/slub.c:3390
 alloc_inode_sb include/linux/fs.h:3278 [inline]
 mqueue_alloc_inode+0x24/0x40 ipc/mqueue.c:501
 alloc_inode fs/inode.c:261 [inline]
 new_inode_pseudo+0x5f/0x1c0 fs/inode.c:1063
 new_inode+0x25/0x1d0 fs/inode.c:1091
 mqueue_get_inode+0x28/0xc00 ipc/mqueue.c:297
 mqueue_fill_super+0xde/0x150 ipc/mqueue.c:415
 vfs_get_super fs/super.c:1222 [inline]
 get_tree_nodev+0xb0/0x160 fs/super.c:1252
 vfs_get_tree+0x88/0x270 fs/super.c:1584
 fc_mount+0x18/0xa0 fs/namespace.c:1048
 mq_create_mount ipc/mqueue.c:485 [inline]
 mq_init_ns+0x39d/0x510 ipc/mqueue.c:1700
 create_ipc_ns ipc/namespace.c:58 [inline]
 copy_ipcs+0x2de/0x500 ipc/namespace.c:99
 create_new_namespaces+0x212/0x700 kernel/nsproxy.c:90
 copy_namespaces+0x3ae/0x410 kernel/nsproxy.c:178
 copy_process+0x199b/0x4070 kernel/fork.c:2361
 kernel_clone+0x24b/0x900 kernel/fork.c:2765
 __do_sys_clone kernel/fork.c:2906 [inline]
 __se_sys_clone kernel/fork.c:2890 [inline]
 __x64_sys_clone+0x1a7/0x220 kernel/fork.c:2890
 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: 0033:0x7f753df9f559
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:00007f753ef56fd8 EFLAGS: 00000202 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f753e225fa0 RCX: 00007f753df9f559
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002c9a4080
RBP: 00007f753e036b20 R08: ffffffffff600000 R09: ffffffffff600000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007f753e226038 R14: 00007f753e225fa0 R15: 00007ffe5abc8f88
 </TASK>