watchdog: BUG: soft lockup - CPU#1 stuck for 141s! [syz.0.394:2514]
Modules linked in:
CPU: 1 PID: 2514 Comm: syz.0.394 Tainted: G        W         5.15.167-syzkaller-02003-g5e4635681cf1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:skb_push+0x7d/0x120 net/core/skbuff.c:2076
Code: 00 89 d8 49 29 c6 4d 89 b4 24 e0 00 00 00 49 8d 7c 24 70 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 75 7e 89 5d d4 41 01 5c 24 70 <49> 8d 9c 24 d8 00 00 00 48 89 d8 48 c1 e8 03 80 3c 10 00 74 16 48
RSP: 0018:ffffc900001d09d8 EFLAGS: 00000216
RAX: 0000000000000000 RBX: 0000000000000028 RCX: ffff88811512cf00
RDX: dffffc0000000000 RSI: 0000000000000028 RDI: ffff888147cc1570
RBP: ffffc900001d0a10 R08: ffffffff845c0218 R09: ffffc900001d08e0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888147cc1500
R13: ffff888147cc15e0 R14: ffff888127dde890 R15: 1ffff11028f982bc
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe147589f98 CR3: 00000001398d5000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 ip6_nd_hdr net/ipv6/ndisc.c:458 [inline]
 ndisc_send_skb+0x4dc/0xc90 net/ipv6/ndisc.c:505
 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:705
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3979
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1457
 expire_timers kernel/time/timer.c:1502 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1773
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1786
 handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
 __do_softirq kernel/softirq.c:603 [inline]
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__nr_to_section include/linux/mmzone.h:1591 [inline]
RIP: 0010:__pfn_to_section include/linux/mmzone.h:1676 [inline]
RIP: 0010:lookup_page_ext mm/page_ext.c:265 [inline]
RIP: 0010:page_ext_get+0x9f/0x140 mm/page_ext.c:148
Code: b7 46 98 05 48 85 c0 74 42 4c 89 f9 48 c1 e9 16 48 8d 1c c8 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 91 72 fa ff <48> 8b 1b 48 85 db 74 20 4d 89 fe 49 c1 ee 0f e8 9d 20 b8 ff 41 83
RSP: 0018:ffffc90000faf5f8 EFLAGS: 00000246
RAX: 1ffff11047ffec00 RBX: ffff88823fff6000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000045bba00 RDI: 000000ffffffffc0
RBP: ffffc90000faf618 R08: ffffffff81b8367b R09: 0000000000000010
R10: ffffc90000faf450 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffea00045bba00 R14: 000000ffffffffc0 R15: 0000000000116ee8
 __reset_page_owner+0x41/0x190 mm/page_owner.c:157
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1472 [inline]
 free_pcp_prepare mm/page_alloc.c:1544 [inline]
 free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3534
 free_unref_page+0xe8/0x750 mm/page_alloc.c:3616
 free_the_page mm/page_alloc.c:805 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5855
 __vunmap+0x7bc/0x8f0 mm/vmalloc.c:2652
 __vfree mm/vmalloc.c:2700 [inline]
 vfree+0x7f/0xb0 mm/vmalloc.c:2731
 kcov_put kernel/kcov.c:417 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:519
 __fput+0x228/0x8c0 fs/file_table.c:280
 ____fput+0x15/0x20 fs/file_table.c:308
 task_work_run+0x129/0x190 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xc48/0x2ca0 kernel/exit.c:880
 do_group_exit+0x141/0x310 kernel/exit.c:1002
 get_signal+0x7a3/0x1630 kernel/signal.c:2904
 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:320
 irqentry_exit+0x12/0x40 kernel/entry/common.c:411
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0033:0x7ff8b6da5ff9
Code: Unable to access opcode bytes at RIP 0x7ff8b6da5fcf.
RSP: 002b:00007ff8b59dd038 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007ff8b6f5e130 RCX: 00007ff8b6da5ff9
RDX: 0000000020000500 RSI: 0000000000005452 RDI: 000000000000000c
RBP: 00007ff8b6e18296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff8b6f5e130 R15: 00007ffe44af9978
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3463 Comm: kworker/u4:9 Tainted: G        W         5.15.167-syzkaller-02003-g5e4635681cf1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:rep_nop arch/x86/include/asm/vdso/processor.h:13 [inline]
RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline]
RIP: 0010:csd_lock_wait kernel/smp.c:440 [inline]
RIP: 0010:smp_call_function_many_cond+0x841/0x9b0 kernel/smp.c:969
Code: 00 00 45 8b 7d 00 44 89 fe 83 e6 01 31 ff e8 e6 a5 0a 00 41 83 e7 01 49 bf 00 00 00 00 00 fc ff df 75 07 e8 21 a2 0a 00 eb 38 <f3> 90 42 0f b6 04 3b 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8
RSP: 0018:ffffc900017f7840 EFLAGS: 00000293
RAX: ffffffff8165b57b RBX: 1ffff1103ee2784d RCX: ffff88811f6b2780
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900017f7958 R08: ffffffff8165b54a R09: ffffed103ee071d3
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff8881f713c268 R14: ffff8881f7038e80 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f19bfff6f40 CR3: 0000000006a0f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1135
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1207 [inline]
 text_poke_bp_batch+0x1db/0x720 arch/x86/kernel/alternative.c:1407
 text_poke_flush arch/x86/kernel/alternative.c:1598 [inline]
 text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1605
 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:146
 __jump_label_update+0x36a/0x380 kernel/jump_label.c:459
 jump_label_update+0x3af/0x450 kernel/jump_label.c:830
 static_key_disable_cpuslocked+0xcd/0x1b0 kernel/jump_label.c:207
 static_key_disable+0x1a/0x30 kernel/jump_label.c:215
 toggle_allocation_gate+0x3be/0x460 mm/kfence/core.c:743
 process_one_work+0x6bb/0xc10 kernel/workqueue.c:2325
 worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472
 kthread+0x421/0x510 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>