rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2670 jiffies s: 3785 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: 4602 Comm: syz.0.86 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:kasan_addr_to_slab+0x0/0xc0 mm/kasan/common.c:34
Code: 3b 44 24 08 75 11 31 c0 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 0e f7 46 08 00 00 cc cc 00 00 cc cc 00 00 cc cc 00 00 <53> 48 89 fb e8 47 7d 68 ff 84 c0 74 47 48 89 df e8 5b 7b 68 ff 48
RSP: 0018:ffffc90000007220 EFLAGS: 00000046
RAX: ffffffff818d0fa1 RBX: 0000000000000000 RCX: 0000000000000100
RDX: ffff88805ab93b80 RSI: 0000000000000000 RDI: ffff8880b8e3b9b0
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed10171c7738
R10: ffffed10171c7738 R11: 1ffff110171c7737 R12: 0000000000000000
R13: dffffc0000000001 R14: ffff8880b8e3b9b0 R15: ffff8880b8e3b9b8
FS:  00007f38109416c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000021c0 CR3: 00000000727ec000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __kasan_record_aux_stack+0xf/0xc0 mm/kasan/generic.c:471
 irq_work_queue_on+0x10f/0x260 kernel/irq_work.c:140
 rcu_read_unlock_special+0x3c7/0x500 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+0x237/0x2a0 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_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+0x84/0x500 kernel/rcu/tree_plugin.h:685
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 ed 90 96 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc90000007a00 EFLAGS: 00000206
RAX: 3b6cd7a5067cc500 RBX: 1ffff92000000f48 RCX: 3b6cd7a5067cc500
RDX: dffffc0000000000 RSI: ffffffff8a8c0580 RDI: ffffffff8adef760
RBP: ffffc90000007af8 R08: dffffc0000000000 R09: fffffbfff215c46b
R10: fffffbfff215c46b R11: 1ffffffff215c46a R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 fib6_nh_release+0x22a/0x2b0 net/ipv6/route.c:3696
 fib6_info_destroy_rcu+0xba/0x1b0 net/ipv6/ip6_fib.c:176
 rcu_do_batch kernel/rcu/tree.c:2297 [inline]
 rcu_core+0x9c0/0x16a0 kernel/rcu/tree.c:2557
 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_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:__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 ce 48 65 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> f6 cd 35 f7 65 8b 05 77 85 e0 75 85 c0 74 3c 48 c7 04 24 0e 36
RSP: 0018:ffffc90003b7fd00 EFLAGS: 00000206
RAX: 3b6cd7a5067cc500 RBX: 0000000000000a06 RCX: 3b6cd7a5067cc500
RDX: dffffc0000000000 RSI: ffffffff8a8c0580 RDI: 0000000000000001
RBP: ffffc90003b7fd90 R08: dffffc0000000000 R09: fffffbfff215c46b
R10: fffffbfff215c46b R11: 1ffffffff215c46a R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888028548408 R15: 1ffff9200076ffa0
 __do_sys_perf_event_open kernel/events/core.c:12785 [inline]
 __se_sys_perf_event_open+0x124f/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: 0033:0x7f380fb8f6c9
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:00007f3810941038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f380fde5fa0 RCX: 00007f380fb8f6c9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000021c0
RBP: 00007f380fc11f91 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f380fde6038 R14: 00007f380fde5fa0 R15: 00007ffccea1bc98
 </TASK>