rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2673 jiffies s: 111909 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: 20609 Comm: syz.0.4455 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:unwind_next_frame+0x400/0x20b0 arch/x86/kernel/unwind_orc.c:461
Code: 49 c7 c4 80 7b 89 8a 49 8d 6c 24 04 4d 8d 7c 24 05 48 89 e8 48 c1 e8 03 48 89 44 24 48 42 0f b6 04 28 84 c0 0f 85 72 16 00 00 <4c> 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 7d 16 00 00 0f b7
RSP: 0018:ffffc900000064c8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffc90000006600 RCX: ffffffff8e342cd4
RDX: ffffffff8ea67eda RSI: ffffffff8e342cd0 RDI: 0000000000000001
RBP: ffffffff8ea67ede R08: 0000000000000001 R09: ffffc90000006650
R10: fffff52000000ccc R11: 1ffff92000000cca R12: ffffffff8ea67eda
R13: dffffc0000000000 R14: ffffffff8e342cd0 R15: ffffffff8ea67edf
FS:  00007f7950b856c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f824000 CR3: 000000005fb99000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 perf_callchain_kernel+0x461/0x5c0 arch/x86/events/core.c:2805
 get_perf_callchain+0x376/0x480 kernel/events/callchain.c:200
 perf_callchain kernel/events/core.c:7512 [inline]
 perf_prepare_sample+0x399/0x2040 kernel/events/core.c:7545
 __perf_event_output kernel/events/core.c:7730 [inline]
 perf_event_output_forward+0x163/0x2a0 kernel/events/core.c:7750
 __perf_event_overflow+0x448/0x610 kernel/events/core.c:9496
 perf_tp_event+0x335/0xb60 kernel/events/core.c:10029
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10002
 perf_trace_preemptirq_template+0x287/0x330 include/trace/events/preemptirq.h:14
 trace_irq_disable include/trace/events/preemptirq.h:36 [inline]
 trace_hardirqs_off_finish+0x13f/0x180 kernel/trace/trace_preemptirq.c:67
 irqentry_enter+0x33/0x50 kernel/entry/common.c:382
 sysvec_apic_timer_interrupt+0xa/0xc0 arch/x86/kernel/apic/apic.c:1118
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:find_stack lib/stackdepot.c:303 [inline]
RIP: 0010:__stack_depot_save+0x153/0x460 lib/stackdepot.c:452
Code: 89 ee c1 c6 04 29 f2 31 d1 c1 c2 0e 29 d1 31 cd c1 c1 18 29 cd 4c 8b 05 23 dd c6 12 44 8b 25 18 dd c6 12 41 21 ec 4f 8b 2c e0 <4d> 85 ed 74 64 44 89 f9 eb 09 4d 8b 6d 00 4d 85 ed 74 56 41 39 6d
RSP: 0018:ffffc90000006f08 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000296a632b
RDX: 000000004cef4f2c RSI: 000000008a1d84fe RDI: 0000000000000a20
RBP: 000000005958903b R08: ffff88823b400000 R09: 0000000000000001
R10: 00000000662d0340 R11: 1ffffffff1c3ed55 R12: 000000000008903b
R13: ffff888059dbb070 R14: ffffc90000006f70 R15: 0000000000000014
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x60/0x70 mm/kasan/common.c:52
 __kasan_slab_alloc+0x6b/0x80 mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x4b/0x480 mm/slab.h:737
 slab_alloc_node mm/slub.c:3359 [inline]
 slab_alloc mm/slub.c:3367 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3374 [inline]
 kmem_cache_alloc+0x123/0x2f0 mm/slub.c:3383
 skb_clone+0x1e7/0x370 net/core/skbuff.c:1660
 dev_queue_xmit_nit+0x249/0xbb0 net/core/dev.c:2321
 xmit_one net/core/dev.c:3666 [inline]
 dev_hard_start_xmit+0x154/0x870 net/core/dev.c:3686
 sch_direct_xmit+0x24e/0x4a0 net/sched/sch_generic.c:342
 __dev_xmit_skb net/core/dev.c:3907 [inline]
 __dev_queue_xmit+0x18cd/0x3760 net/core/dev.c:4312
 neigh_output include/net/neighbour.h:545 [inline]
 ip6_finish_output2+0xda2/0x1590 net/ipv6/ip6_output.c:138
 dst_output include/net/dst.h:453 [inline]
 NF_HOOK include/linux/netfilter.h:302 [inline]
 ndisc_send_skb+0xbfb/0x1510 net/ipv6/ndisc.c:513
 addrconf_rs_timer+0x2b8/0x600 net/ipv6/addrconf.c:3979
 call_timer_fn+0x1a0/0x670 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x529/0x7d0 kernel/time/timer.c:2022
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:2035
 handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x9d/0xc0 arch/x86/kernel/irq_work.c:17
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:preempt_schedule_irq+0xac/0x150 kernel/sched/core.c:6873
Code: 44 24 20 f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 70 bf 01 00 00 00 e8 0f 42 37 f7 e8 4a be 66 f7 fb bf 01 00 00 00 <e8> df b9 ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc9000510f900 EFLAGS: 00000286
RAX: 5e06dd3f00996d00 RBX: 0000000000000000 RCX: 5e06dd3f00996d00
RDX: dffffc0000000000 RSI: ffffffff8a8c0580 RDI: 0000000000000001
RBP: ffffc9000510f9a0 R08: dffffc0000000000 R09: fffffbfff215c468
R10: fffffbfff215c468 R11: 1ffffffff215c467 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000a21f20
 irqentry_exit+0x63/0x70 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:preempt_schedule+0x79/0xb0 kernel/sched/core.c:6755
Code: fc ff df 4a 89 04 33 65 8b 05 fb fd e1 75 a9 ff ff ff 7f 75 15 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 29 <48> c7 04 24 0e 36 e0 45 4a c7 04 33 00 00 00 00 65 48 8b 04 25 28
RSP: 0018:ffffc9000510fa60 EFLAGS: 00000246
RAX: 1ffff11004a31b28 RBX: 1ffff92000a21f4c RCX: ffffffff8a207245
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88802518d940
RBP: ffffc9000510fad8 R08: dffffc0000000000 R09: ffffed1004a31b29
R10: ffffed1004a31b29 R11: 1ffff11004a31b28 R12: 1ffff92000a21f71
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
 smp_call_function_single+0x456/0x560 kernel/smp.c:789
 task_function_call kernel/events/core.c:120 [inline]
 perf_install_in_context+0x59a/0x8f0 kernel/events/core.c:2941
 __do_sys_perf_event_open kernel/events/core.c:12784 [inline]
 __se_sys_perf_event_open+0x1247/0x1e60 kernel/events/core.c:12378
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f794fd8f749
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:00007f7950b85038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f794ffe5fa0 RCX: 00007f794fd8f749
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000003c0
RBP: 00007f794fe13f91 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f794ffe6038 R14: 00007f794ffe5fa0 R15: 00007ffd4960e1b8
 </TASK>