kthread+0x34b/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.0.1390:5127]
Modules linked in:
CPU: 0 PID: 5127 Comm: syz.0.1390 Not tainted 5.10.233-syzkaller-00881-gfbe98d68b6b3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:csd_lock_wait kernel/smp.c:229 [inline]
RIP: 0010:smp_call_function_single+0x278/0x510 kernel/smp.c:517
Code: 0f 85 18 02 00 00 44 8b 6c 24 48 44 89 ee 83 e6 01 31 ff e8 ea ec 0a 00 41 83 e5 01 75 0a e8 2f e9 0a 00 e9 eb 00 00 00 f3 90 <42> 0f b6 04 23 84 c0 75 15 f7 44 24 48 01 00 00 00 0f 84 cd 00 00
RSP: 0018:ffffc900013ff800 EFLAGS: 00000293
RAX: ffffffff815fd594 RBX: 1ffff9200027ff09 RCX: ffff888127998000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900013ff8f0 R08: ffffffff815fd566 R09: ffffed103ee2aec9
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: ffffc900013ff848 R15: 0000000000000000
FS:  000055558731f500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000011ac1a000 CR4: 00000000003506b0
DR0: 0000000020000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 </IRQ>
 smp_call_function_many_cond+0x94e/0xa30 kernel/smp.c:653
 smp_call_function_many kernel/smp.c:716 [inline]
 smp_call_function kernel/smp.c:738 [inline]
 on_each_cpu+0xa8/0x1a0 kernel/smp.c:837
 text_poke_sync arch/x86/kernel/alternative.c:1318 [inline]
 text_poke_bp_batch+0x1d4/0x600 arch/x86/kernel/alternative.c:1509
 text_poke_flush arch/x86/kernel/alternative.c:1677 [inline]
 text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1684
 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:126
 __jump_label_update+0x36a/0x380 kernel/jump_label.c:459
 jump_label_update+0x379/0x400 kernel/jump_label.c:825
 static_key_disable_cpuslocked+0xcd/0x1b0 kernel/jump_label.c:207
 static_key_disable+0x1a/0x30 kernel/jump_label.c:215
 tracepoint_remove_func kernel/tracepoint.c:438 [inline]
 tracepoint_probe_unregister+0x6e0/0x9e0 kernel/tracepoint.c:572
 bpf_probe_unregister+0x61/0x70 kernel/trace/bpf_trace.c:2135
 bpf_raw_tp_link_release+0x63/0x90 kernel/bpf/syscall.c:2767
 bpf_link_free kernel/bpf/syscall.c:2356 [inline]
 bpf_link_put+0x1fd/0x280 kernel/bpf/syscall.c:2382
 bpf_link_release+0x3b/0x40 kernel/bpf/syscall.c:2390
 __fput+0x33d/0x7b0 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x129/0x190 kernel/task_work.c:189
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:172
 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline]
 syscall_exit_to_user_mode+0xa2/0x1a0 kernel/entry/common.c:274
 do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f7f8b2b6da9
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:00007ffe36b857d8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 0000000000023a86 RCX: 00007f7f8b2b6da9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f7f8b4d1ba0 R08: 0000000000000001 R09: 00007ffe36b85adf
R10: 00007f7f8b12a000 R11: 0000000000000246 R12: 0000000000023abf
R13: 00007f7f8b4cffa0 R14: 0000000000000032 R15: ffffffffffffffff
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5102 Comm: syz.1.1383 Not tainted 5.10.233-syzkaller-00881-gfbe98d68b6b3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:native_halt arch/x86/include/asm/irqflags.h:66 [inline]
RIP: 0010:halt arch/x86/include/asm/irqflags.h:112 [inline]
RIP: 0010:kvm_wait+0xec/0x150 arch/x86/kernel/kvm.c:921
Code: 03 42 0f b6 04 20 84 c0 75 6a 41 0f b6 45 00 44 38 f0 75 26 41 f7 c7 00 02 00 00 75 0f 0f 1f 44 00 00 0f 00 2d a5 53 d5 03 f4 <eb> 0e 0f 1f 44 00 00 0f 00 2d 96 53 d5 03 fb f4 4c 89 7c 24 18 ff
RSP: 0018:ffffc90008ae68e0 EFLAGS: 00000046
RAX: 0000000000000003 RBX: 1ffff9200115cd20 RCX: ffffffff8150ca44
RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffffc90008ae6920
RBP: ffffc90008ae6990 R08: dffffc0000000000 R09: ffffed103ee28edf
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881f71476f0 R14: 0000000000000003 R15: 0000000000000046
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000124f20000 CR4: 00000000003506a0
DR0: 0000000020000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 pv_wait arch/x86/include/asm/paravirt.h:564 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x72f/0xc70 kernel/locking/qspinlock.c:508
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:554 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock include/linux/spinlock.h:183 [inline]
 __raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_lock+0x139/0x1b0 kernel/locking/spinlock.c:151
 krc_this_cpu_lock kernel/rcu/tree.c:3160 [inline]
 kvfree_call_rcu+0x129/0x650 kernel/rcu/tree.c:3522
 trie_delete_elem+0x58f/0x760 kernel/bpf/lpm_trie.c:538
 bpf_prog_b1623580e2e2e91c+0x42/0xb80
 bpf_dispatcher_nop_func include/linux/bpf.h:669 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2061 [inline]
 bpf_trace_run3+0x121/0x2c0 kernel/trace/bpf_trace.c:2099
 __bpf_trace_timer_start+0x2b/0x40 include/trace/events/timer.h:52
 trace_timer_start include/trace/events/timer.h:52 [inline]
 enqueue_timer+0x351/0x4c0 kernel/time/timer.c:592
 internal_add_timer kernel/time/timer.c:617 [inline]
 __mod_timer+0x8d3/0xcf0 kernel/time/timer.c:1068
 add_timer+0x68/0x80 kernel/time/timer.c:1165
 __queue_delayed_work+0x16d/0x1f0 kernel/workqueue.c:1683
 queue_delayed_work_on+0x10f/0x160 kernel/workqueue.c:1708
 queue_delayed_work include/linux/workqueue.h:530 [inline]
 schedule_delayed_work include/linux/workqueue.h:634 [inline]
 kvfree_call_rcu+0x495/0x650 kernel/rcu/tree.c:3564
 drop_sysctl_table+0x311/0x450 fs/proc/proc_sysctl.c:1680
 unregister_sysctl_table+0x76/0x120 fs/proc/proc_sysctl.c:1718
 unregister_net_sysctl_table+0x15/0x20 net/sysctl_net.c:127
 __addrconf_sysctl_unregister net/ipv6/addrconf.c:7065 [inline]
 addrconf_sysctl_unregister net/ipv6/addrconf.c:7093 [inline]
 addrconf_ifdown+0x1769/0x1a60 net/ipv6/addrconf.c:3936
 addrconf_notify+0x378/0xe90
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0x8c/0xf0 kernel/notifier.c:410
 call_netdevice_notifiers_info net/core/dev.c:2054 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2066 [inline]
 call_netdevice_notifiers net/core/dev.c:2080 [inline]
 unregister_netdevice_many+0xde7/0x17d0 net/core/dev.c:10766
 unregister_netdevice_queue+0x2e6/0x350 net/core/dev.c:10700
 unregister_netdevice include/linux/netdevice.h:2931 [inline]
 __tun_detach+0xd14/0x1510 drivers/net/tun.c:697
 tun_detach drivers/net/tun.c:713 [inline]
 tun_chr_close+0x92/0x140 drivers/net/tun.c:3486
 __fput+0x33d/0x7b0 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x129/0x190 kernel/task_work.c:189
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xc83/0x2a50 kernel/exit.c:863
 do_group_exit+0x141/0x310 kernel/exit.c:985
 get_signal+0x10a0/0x1410 kernel/signal.c:2793
 arch_do_signal_or_restart+0xbd/0x17c0 arch/x86/kernel/signal.c:805
 handle_signal_work kernel/entry/common.c:145 [inline]
 exit_to_user_mode_loop+0x9b/0xd0 kernel/entry/common.c:169
 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline]
 syscall_exit_to_user_mode+0xa2/0x1a0 kernel/entry/common.c:274
 do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f5cb7fb7da9
Code: Unable to access opcode bytes at RIP 0x7f5cb7fb7d7f.
RSP: 002b:00007f5cb6622038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f5cb81d0fa0 RCX: 00007f5cb7fb7da9
RDX: 0000000020000140 RSI: 00000000400454ca RDI: 0000000000000005
RBP: 00007f5cb80392a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5cb81d0fa0 R15: 00007ffe7ca48ba8