watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz-executor.0:6722]
Modules linked in:
CPU: 0 PID: 6722 Comm: syz-executor.0 Not tainted 6.1.78-syzkaller-00009-g25216be1ac5e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:kernel_text_address+0x3a/0xe0 kernel/extable.c:133
Code: 00 00 81 41 be 01 00 00 00 48 39 c7 72 0c 48 c7 c0 98 44 40 85 48 39 c3 72 0c 48 89 df e8 9e e8 b3 ff 85 c0 74 0a 44 89 f0 5b <41> 5e 41 5f 5d c3 48 c7 c0 40 e4 6e 87 48 c1 e8 03 48 b9 00 00 00
RSP: 0018:ffffc900000075e0 EFLAGS: 00000287
RAX: 0000000000000001 RBX: ffffffff840c1d4a RCX: 0000000000007601
RDX: 1ffff92000000eca RSI: ffffc90000007958 RDI: ffffffff840c1d4a
RBP: ffffc900000075f0 R08: ffffc90000007728 R09: 0000000000000000
R10: ffffc90000007730 R11: dffffc0000000001 R12: ffff888111d85100
R13: ffffffff816594e0 R14: 0000000000000001 R15: 1ffff92000000ed1
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000786c6c257830 CR3: 0000000006e0f000 CR4: 00000000003506b0
DR0: 8000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __kernel_text_address+0xd/0x40 kernel/extable.c:79
 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_frame.c:19
 arch_stack_walk+0xf3/0x140 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 ref_tracker_alloc+0x175/0x450 lib/ref_tracker.c:91
 __netdev_tracker_alloc include/linux/netdevice.h:4063 [inline]
 netdev_hold include/linux/netdevice.h:4092 [inline]
 dst_init+0xe1/0x400 net/core/dst.c:52
 dst_alloc+0x18a/0x1e0 net/core/dst.c:96
 ip6_dst_alloc net/ipv6/route.c:345 [inline]
 icmp6_dst_alloc+0xf8/0x510 net/ipv6/route.c:3266
 ndisc_send_skb+0x28b/0xdc0 net/ipv6/ndisc.c:489
 ndisc_send_rs+0x47d/0x5f0 net/ipv6/ndisc.c:719
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3968
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1480
 expire_timers kernel/time/timer.c:1525 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1796
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1809
 __do_softirq+0x1d8/0x661 kernel/softirq.c:617
 invoke_softirq kernel/softirq.c:472 [inline]
 __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:700
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:712
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:is_last_aligned_frame arch/x86/kernel/unwind_frame.c:129 [inline]
RIP: 0010:is_last_task_frame arch/x86/kernel/unwind_frame.c:156 [inline]
RIP: 0010:unwind_next_frame+0x150/0x700 arch/x86/kernel/unwind_frame.c:276
Code: df 48 8b 3b 4c 8d af 00 80 00 00 48 81 c7 48 7f 00 00 48 8b 5d d0 48 39 fb 0f 84 32 01 00 00 49 8d 85 40 ff ff ff 48 89 45 c8 <48> 39 c3 75 5e 48 89 f8 48 c1 e8 03 80 3c 10 00 74 0f e8 a9 c5 84
RSP: 0018:ffffc900018cf198 EFLAGS: 00000293
RAX: ffffc900018cff40 RBX: ffffc900018cf2b0 RCX: ffffffff87767000
RDX: dffffc0000000000 RSI: ffffffff81659433 RDI: ffffc900018cff48
RBP: ffffc900018cf210 R08: ffffc900018cf308 R09: 0000000000000000
R10: ffffc900018cf310 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffc900018d0000 R14: ffffc900018cf220 R15: 1ffff92000319e44
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 save_stack+0xf6/0x1e0 mm/page_owner.c:147
 __reset_page_owner+0x54/0x190 mm/page_owner.c:168
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1498 [inline]
 free_pcp_prepare mm/page_alloc.c:1572 [inline]
 free_unref_page_prepare+0x83d/0x850 mm/page_alloc.c:3498
 free_unref_page+0xb2/0x5c0 mm/page_alloc.c:3594
 free_the_page mm/page_alloc.c:798 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5801
 __vunmap+0x9f3/0xb60 mm/vmalloc.c:2728
 __vfree mm/vmalloc.c:2776 [inline]
 vfree+0x5c/0x80 mm/vmalloc.c:2807
 kcov_put kernel/kcov.c:428 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:524
 __fput+0x3ab/0x870 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x24d/0x2e0 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xbd5/0x2b80 kernel/exit.c:875
 do_group_exit+0x21a/0x2d0 kernel/exit.c:1025
 get_signal+0x169d/0x1820 kernel/signal.c:2880
 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:204
 irqentry_exit_to_user_mode+0x9/0x20 kernel/entry/common.c:310
 irqentry_exit+0x12/0x40 kernel/entry/common.c:413
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0033:0x7f3724c300b9
Code: Unable to access opcode bytes at 0x7f3724c3008f.
RSP: 002b:00007f3725ab40f0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f3724db3f80 RCX: 00007f3724cebff4
RDX: 0000000000000000 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007f3724cebff4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f3724db3f80 R15: 00007ffffd692e88
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 470 Comm: kworker/u4:4 Not tainted 6.1.78-syzkaller-00009-g25216be1ac5e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x36/0x60 kernel/kcov.c:207
Code: b0 f9 8c 7e 65 8b 15 b1 f9 8c 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 6c 0b 00 00 00 74 2c 8b 91 48 0b 00 00 <83> fa 02 75 21 48 8b 91 50 0b 00 00 48 8b 32 48 8d 7e 01 8b 89 4c
RSP: 0018:ffffc90009b1f830 EFLAGS: 00000246
RAX: ffffffff816bd89c RBX: 1ffff1103ee07919 RCX: ffff888114bd9440
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90009b1f830 R08: ffffffff816bd865 R09: ffffed103ee2707b
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000800000000 R14: ffff8881f703c8c8 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f949adb4018 CR3: 0000000006e0f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 csd_lock_wait kernel/smp.c:453 [inline]
 smp_call_function_many_cond+0x86c/0x930 kernel/smp.c:998
 on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1166
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1329 [inline]
 text_poke_bp_batch+0x1e9/0x730 arch/x86/kernel/alternative.c:1529
 text_poke_flush arch/x86/kernel/alternative.c:1720 [inline]
 text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1727
 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:146
 __jump_label_update+0x36a/0x380 kernel/jump_label.c:455
 jump_label_update+0x3af/0x450 kernel/jump_label.c:801
 static_key_enable_cpuslocked+0x12f/0x250 kernel/jump_label.c:177
 static_key_enable+0x1a/0x30 kernel/jump_label.c:190
 toggle_allocation_gate+0xbf/0x450 mm/kfence/core.c:804
 process_one_work+0x73d/0xcb0 kernel/workqueue.c:2299
 worker_thread+0xa60/0x1260 kernel/workqueue.c:2446
 kthread+0x26d/0x300 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>