watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.1.527:1812]
Modules linked in:
CPU: 1 PID: 1812 Comm: syz.1.527 Not tainted 5.4.276-syzkaller-00020-g4275fce9fe94 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:is_module_text_address+0xd3/0x140 kernel/module.c:4727
Code: 89 f8 48 c1 e8 03 42 0f b6 04 20 84 c0 75 67 8b 83 cc 01 00 00 4c 01 f8 31 c9 4c 39 f0 48 0f 46 d9 4d 39 f7 48 0f 47 d9 eb 02 <31> db bf 01 00 00 00 e8 f1 99 ea ff 65 8b 05 56 47 a8 7e 85 c0 74
RSP: 0018:ffff8881f6f09590 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 00007fbec698eb99 RCX: ffffffff86e99903
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00007fbec698eb99
RBP: 0000000000000001 R08: dffffc0000000000 R09: ffffed103edeb135
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881d1bf5e80
R13: ffffffff8153aff0 R14: 00007fbec698eb99 R15: 1ffff1103ede12c9
FS:  00007fbec5c106c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000005e0e000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 kernel_text_address kernel/extable.c:142 [inline]
 __kernel_text_address+0x82/0x100 kernel/extable.c:103
 unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:313
 arch_stack_walk+0xf5/0x140 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x118/0x1c0 kernel/stacktrace.c:123
 save_stack mm/kasan/common.c:70 [inline]
 set_track mm/kasan/common.c:78 [inline]
 __kasan_kmalloc+0x171/0x210 mm/kasan/common.c:529
 kmalloc include/linux/slab.h:556 [inline]
 dst_cow_metrics_generic+0x52/0x1b0 net/core/dst.c:201
 dst_metrics_write_ptr include/net/dst.h:118 [inline]
 dst_metric_set include/net/dst.h:179 [inline]
 icmp6_dst_alloc+0x349/0x550 net/ipv6/route.c:3197
 ndisc_send_skb+0x262/0xc30 net/ipv6/ndisc.c:489
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3954
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1086
 </IRQ>
 do_softirq+0x121/0x160 kernel/softirq.c:337
 __local_bh_enable_ip+0x6a/0x70 kernel/softirq.c:189
 spin_unlock_bh include/linux/spinlock.h:383 [inline]
 __fib6_clean_all net/ipv6/ip6_fib.c:2152 [inline]
 fib6_clean_all+0x214/0x2d0 net/ipv6/ip6_fib.c:2161
 rt6_sync_down_dev net/ipv6/route.c:4770 [inline]
 rt6_disable_ip+0x160/0x730 net/ipv6/route.c:4775
 addrconf_ifdown+0x191/0x1a90 net/ipv6/addrconf.c:3774
 addrconf_notify+0x375/0xe50 net/ipv6/addrconf.c:3697
 notifier_call_chain kernel/notifier.c:98 [inline]
 __raw_notifier_call_chain kernel/notifier.c:399 [inline]
 raw_notifier_call_chain+0x95/0x110 kernel/notifier.c:406
 call_netdevice_notifiers_info net/core/dev.c:1670 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:1682 [inline]
 call_netdevice_notifiers net/core/dev.c:1696 [inline]
 dev_close_many+0x354/0x4f0 net/core/dev.c:1439
 rollback_registered_many+0x493/0x1330 net/core/dev.c:8608
 rollback_registered net/core/dev.c:8673 [inline]
 unregister_netdevice_queue+0x333/0x500 net/core/dev.c:9767
 unregister_netdevice include/linux/netdevice.h:2726 [inline]
 __tun_detach+0x8de/0x1390 drivers/net/tun.c:747
 tun_detach drivers/net/tun.c:763 [inline]
 tun_chr_close+0x8f/0x130 drivers/net/tun.c:3560
 __fput+0x262/0x680 fs/file_table.c:281
 task_work_run+0x140/0x170 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xcaf/0x2bc0 kernel/exit.c:859
 do_group_exit+0x138/0x300 kernel/exit.c:982
 get_signal+0xdb1/0x1440 kernel/signal.c:2735
 do_signal+0xb0/0x11f0 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0xc0/0x1a0 arch/x86/entry/common.c:159
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7fbec698eb99
Code: Bad RIP value.
RSP: 002b:00007fbec5c10048 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: 0000000000000000 RBX: 00007fbec6b1cfa0 RCX: 00007fbec698eb99
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 00007fbec6a0f77e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000380 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fbec6b1cfa0 R15: 00007ffff4d835e8
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 651 Comm: kworker/u4:5 Not tainted 5.4.276-syzkaller-00020-g4275fce9fe94 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__read_once_size include/linux/compiler.h:268 [inline]
RIP: 0010:csd_lock_wait kernel/smp.c:109 [inline]
RIP: 0010:smp_call_function_single+0x235/0x4a0 kernel/smp.c:311
Code: 0f 85 df 01 00 00 44 8b 74 24 58 44 89 f6 83 e6 01 31 ff e8 3d b0 0a 00 41 83 e6 01 75 0a e8 42 ad 0a 00 e9 f4 00 00 00 f3 90 <42> 0f b6 04 2b 84 c0 75 15 f7 44 24 58 01 00 00 00 0f 84 d6 00 00
RSP: 0018:ffff8881e63bf8a0 EFLAGS: 00000293
RAX: ffffffff81598be1 RBX: 1ffff1103cc77f1f RCX: ffff8881e62cee40
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff8881e63bf990 R08: ffffffff81598bb3 R09: ffffed103edeb189
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1103cc77f18
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f936fcbe000 CR3: 0000000005e0e000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 smp_call_function_many+0x6fe/0x9b0 kernel/smp.c:451
 smp_call_function kernel/smp.c:509 [inline]
 on_each_cpu+0xa5/0x1a0 kernel/smp.c:616
 text_poke_bp_batch+0x11a/0x2b0 arch/x86/kernel/alternative.c:1051
 arch_jump_label_transform_apply+0x27/0x40 arch/x86/kernel/jump_label.c:167
 static_key_enable_cpuslocked+0x12c/0x240 kernel/jump_label.c:177
 static_key_enable+0x16/0x20 kernel/jump_label.c:190
 toggle_allocation_gate+0xb1/0x240 mm/kfence/core.c:624
 process_one_work+0x765/0xd20 kernel/workqueue.c:2290
 worker_thread+0xaef/0x1470 kernel/workqueue.c:2436
 kthread+0x2da/0x360 kernel/kthread.c:288
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354