rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (33 ticks this GP) idle=715/1/0x4000000000000000 softirq=19012/19012 fqs=2106 
	(detected by 1, t=10503 jiffies, g=26713, q=1392)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8791 Comm: syz.4.1278 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:perf_callchain_store include/linux/perf_event.h:1321 [inline]
RIP: 0010:perf_callchain_user+0x513/0xf80 arch/x86/events/core.c:2905
Code: 43 22 78 00 48 8b 44 24 48 80 3c 18 00 4c 8b 7c 24 18 74 08 4c 89 ff e8 3b 67 bd 00 4d 8b 3f 4c 89 f8 48 c1 e8 03 80 3c 18 00 <74> 08 4c 89 ff e8 23 67 bd 00 49 8d 47 08 49 8b 0f 48 8d 51 01 49
RSP: 0018:ffffc90000006d08 EFLAGS: 00000046
RAX: 1ffff1100e52f888 RBX: dffffc0000000000 RCX: ffff8880770c0000
RDX: 0000000000000100 RSI: 000000000000007f RDI: 0000000000000022
RBP: 6200786c6c257830 R08: ffffffff8d8b2bef R09: 1ffffffff1b1657d
R10: dffffc0000000000 R11: fffffbfff1b1657e R12: 00007fffffffeff0
R13: 00000000ffffffff R14: 73646e6168206461 R15: ffff88807297c440
FS:  00007f754598a6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000e300000000 CR3: 0000000073614000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 get_perf_callchain+0x33d/0x460 kernel/events/callchain.c:221
 perf_callchain kernel/events/core.c:7616 [inline]
 perf_prepare_sample+0x352/0x1cb0 kernel/events/core.c:7643
 __perf_event_output kernel/events/core.c:7812 [inline]
 perf_event_output_forward+0x185/0x2e0 kernel/events/core.c:7832
 __perf_event_overflow+0x35f/0x550 kernel/events/core.c:9525
 perf_tp_event+0x324/0xbe0 kernel/events/core.c:10057
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10031
 perf_trace_preemptirq_template+0x2aa/0x360 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 kernel/rcu/tree_plugin.h:674
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 82 fc 9c 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc900000075c0 EFLAGS: 00000206
RAX: 79186e3b51560100 RBX: 1ffff92000000ebc RCX: 79186e3b51560100
RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: ffffffff8a7a4b80
RBP: ffffc900000076a0 R08: ffff8880b903b30b R09: 1ffff11017207661
R10: dffffc0000000000 R11: ffffed1017207662 R12: ffffffff8c323400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:772 [inline]
 is_bpf_text_address+0x24f/0x270 kernel/bpf/core.c:727
 kernel_text_address kernel/extable.c:151 [inline]
 __kernel_text_address+0x9a/0x100 kernel/extable.c:105
 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:38 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:46
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
 ____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1710 [inline]
 slab_free_freelist_hook+0xec/0x170 mm/slub.c:1736
 slab_free mm/slub.c:3504 [inline]
 kfree+0xef/0x2a0 mm/slub.c:4564
 snmp6_free_dev net/ipv6/addrconf_core.c:247 [inline]
 in6_dev_finish_destroy_rcu+0x37/0x90 net/ipv6/addrconf_core.c:256
 rcu_do_batch kernel/rcu/tree.c:2523 [inline]
 rcu_core+0x96e/0x1650 kernel/rcu/tree.c:2763
 handle_softirqs+0x336/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:perf_lock_task_context+0x881/0x940 kernel/events/core.c:1531
Code: 89 de 48 81 e6 00 02 00 00 31 ff e8 59 9e de ff 48 81 e3 00 02 00 00 75 07 e8 6b 9a de ff eb 06 e8 64 9a de ff fb 48 8b 1c 24 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 4a c7 44 2b 08
RSP: 0018:ffffc900031cf780 EFLAGS: 00000293
RAX: ffffffff819a88fc RBX: 1ffff92000639ef8 RCX: ffff8880770c0000
RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
RBP: ffffc900031cf8b0 R08: ffff8880b903b30b R09: 1ffff11017207661
R10: dffffc0000000000 R11: ffffed1017207662 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000001
 perf_pin_task_context kernel/events/core.c:1545 [inline]
 perf_event_exit_task_context kernel/events/core.c:13088 [inline]
 perf_event_exit_task+0x297/0x970 kernel/events/core.c:13168
 do_exit+0x5b3/0x2110 kernel/exit.c:875
 do_group_exit+0x12c/0x2f0 kernel/exit.c:1004
 get_signal+0x7eb/0x12e0 kernel/signal.c:2913
 arch_do_signal_or_restart+0xe6/0x12a0 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:157 [inline]
 exit_to_user_mode_loop+0x9e/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:217
 __syscall_exit_to_user_mode_work kernel/entry/common.c:299 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:310
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f7547732159
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:00007f754598a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffb3 RBX: 00007f75479b9fa0 RCX: 00007f7547732159
RDX: 0000000000000001 RSI: 00000000400454cb RDI: 0000000000000009
RBP: 00007f75477c906b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f75479ba038 R14: 00007f75479b9fa0 R15: 00007ffdf81cece8
 </TASK>