watchdog: BUG: soft lockup - CPU#0 stuck for 122s! [syz.4.1854:10026]
Modules linked in:
CPU: 0 PID: 10026 Comm: syz.4.1854 Not tainted 6.1.90-syzkaller-00003-gbe8ff39d2e99 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:should_fail_alloc_page+0x6/0x90 mm/page_alloc.c:4067
Code: f9 45 89 f0 41 b9 03 00 00 00 e8 35 a5 ff ff 5b 41 5e 41 5f 5d c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 48 89 e5 41 56 <53> 31 c0 f7 c7 00 80 00 00 75 57 41 89 f6 39 35 f2 1e 4f 05 77 4c
RSP: 0018:ffffc90000007188 EFLAGS: 00000206
RAX: 0000000000000302 RBX: 00000000000d2a20 RCX: 1ffff92000000e47
RDX: ffffc90000007238 RSI: 0000000000000003 RDI: 00000000000d2a20
RBP: ffffc90000007190 R08: dffffc0000000000 R09: ffffc90000007230
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000000e44
R13: 00000000000d2a20 R14: 0000000000000041 R15: 1ffff92000000e40
FS:  00007fc70289a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3f93e00000 CR3: 0000000124ed9000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 prepare_alloc_pages mm/page_alloc.c:5489 [inline]
 __alloc_pages+0x1f4/0x780 mm/page_alloc.c:5703
 alloc_slab_page+0x6c/0xf0
 allocate_slab mm/slub.c:1962 [inline]
 new_slab+0x90/0x3e0 mm/slub.c:2015
 ___slab_alloc+0x6f9/0xb80 mm/slub.c:3203
 __slab_alloc+0x5d/0xa0 mm/slub.c:3302
 slab_alloc_node mm/slub.c:3387 [inline]
 __kmem_cache_alloc_node+0x1af/0x250 mm/slub.c:3460
 __do_kmalloc_node mm/slab_common.c:956 [inline]
 __kmalloc_node_track_caller+0xa2/0x1e0 mm/slab_common.c:977
 kmalloc_reserve net/core/skbuff.c:446 [inline]
 __alloc_skb+0x125/0x2d0 net/core/skbuff.c:515
 alloc_skb include/linux/skbuff.h:1290 [inline]
 nlmsg_new include/net/netlink.h:991 [inline]
 __neigh_notify+0x7d/0x130 net/core/neighbour.c:3504
 neigh_cleanup_and_release+0x2c/0x1b0 net/core/neighbour.c:101
 neigh_del net/core/neighbour.c:225 [inline]
 neigh_remove_one+0x4d5/0x560 net/core/neighbour.c:246
 neigh_forced_gc net/core/neighbour.c:279 [inline]
 neigh_alloc net/core/neighbour.c:485 [inline]
 ___neigh_create+0x447/0x1db0 net/core/neighbour.c:648
 __neigh_create+0x32/0x40 net/core/neighbour.c:737
 ip6_finish_output2+0x9d0/0x1840 net/ipv6/ip6_output.c:125
 __ip6_finish_output net/ipv6/ip6_output.c:201 [inline]
 ip6_finish_output+0x50f/0xa60 net/ipv6/ip6_output.c:212
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:233
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x7cf/0xdc0 net/ipv6/ndisc.c:509
 ndisc_send_rs+0x47d/0x5f0 net/ipv6/ndisc.c:719
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3984
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
 expire_timers kernel/time/timer.c:1555 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1826
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
 __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:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5295
Code: 74 08 4c 89 ff e8 11 5c 6c 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 39 ff ce 03 fb 49 8d 9d 48 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30
RSP: 0018:ffffc9000103f500 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff888112bdf088 RCX: 0000000000000002
RDX: 0000000040000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc9000103f550 R08: ffffffff819b54a0 R09: fffffbfff0ee5117
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f7037c80
R13: ffff888112bde540 R14: 1ffff1103ee070fc R15: ffff8881f70387e0
 context_switch kernel/sched/core.c:5421 [inline]
 __schedule+0xcaf/0x1550 kernel/sched/core.c:6744
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:7056
 raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:396
 irqentry_exit+0x30/0x40 kernel/entry/common.c:439
 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: 0010:preempt_schedule+0xaf/0xe0 kernel/sched/core.c:6938
Code: 44 24 20 00 00 00 00 9c 8f 44 24 20 43 80 3c 3c 00 74 08 4c 89 f7 e8 70 29 9f fc f6 44 24 21 02 75 2d 48 c7 04 24 0e 36 e0 45 <49> c7 04 1f 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 48
RSP: 0018:ffffc9000103f800 EFLAGS: 00000246
RAX: 1ffff1102257bca8 RBX: 1ffff92000207f00 RCX: ffffffff851d981e
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888112bde540
RBP: ffffc9000103f888 R08: dffffc0000000000 R09: ffffed102257bca9
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000207f04
R13: 0000000000000001 R14: ffffc9000103f820 R15: dffffc0000000000
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
 __up_read kernel/locking/rwsem.c:1436 [inline]
 up_read+0xb7/0x220 kernel/locking/rwsem.c:1697
 blocking_notifier_call_chain+0x127/0x140 kernel/notifier.c:383
 profile_task_exit+0x1e/0x30 kernel/profile.c:146
 do_exit+0x2c1/0x2b80 kernel/exit.c:819
 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:174
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:316
 irqentry_exit+0x12/0x40 kernel/entry/common.c:419
 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: 0033:0x7fc701b779f9
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:00007fc70289a038 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fc701d05f80 RCX: 00007fc701b779f9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 000000000000000c
RBP: 00007fc701be58ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc701d05f80 R15: 00007ffee5b32bf8
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 9252 Comm: syz.4.1655 Not tainted 6.1.90-syzkaller-00003-gbe8ff39d2e99 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:230 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:147 [inline]
RIP: 0010:wrmsr arch/x86/include/asm/msr.h:254 [inline]
RIP: 0010:native_apic_msr_write+0x39/0x50 arch/x86/include/asm/apic.h:206
Code: 74 05 83 ff 30 75 12 5d c3 81 ff d0 00 00 00 74 f6 81 ff e0 00 00 00 74 ee c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 eb d9 89 f6 31 d2 e8 0a d1 6a 01 5d c3 0f 1f 84 00 00 00 00
RSP: 0018:ffffc900001b01d8 EFLAGS: 00000046
RAX: 00000000000000e8 RBX: ffffffff86541a40 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 00000000000000e8 RDI: 0000000000000838
RBP: ffffc900001b01d8 R08: ffffffff816a14fb R09: ffffffff816a13ed
R10: 0000000000000002 R11: ffff88810dbf8000 R12: 0000000000000020
R13: dffffc0000000000 R14: 00000000000000e8 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32611ff8 CR3: 000000012430b000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 apic_write arch/x86/include/asm/apic.h:394 [inline]
 lapic_next_event+0x5f/0x70 arch/x86/kernel/apic/apic.c:478
 clockevents_program_event+0x1c1/0x300 kernel/time/clockevents.c:334
 tick_program_event+0x9f/0x120 kernel/time/tick-oneshot.c:44
 hrtimer_interrupt+0x625/0xaa0 kernel/time/hrtimer.c:1824
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x44/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:queued_write_lock_slowpath+0x17e/0x547 kernel/locking/qrwlock.c:85
Code: 78 2a 9d fc eb 21 f3 90 43 0f b6 44 3d 00 84 c0 74 15 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 08 4c 89 f7 e8 55 2a 9d fc 41 8b 06 <3d> 00 01 00 00 75 d5 43 0f b6 04 3c 84 c0 75 50 c7 44 24 50 00 01
RSP: 0018:ffffc900001b04a0 EFLAGS: 00000246
RAX: 00000000000001ff RBX: 00000000000000ff RCX: ffffffff851f95cc
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff875ff4b0
RBP: ffffc900001b0550 R08: dffffc0000000000 R09: fffffbfff0ebfe97
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200003609e
R13: 1ffffffff0ebfe96 R14: ffffffff875ff4b0 R15: dffffc0000000000
 queued_write_lock include/asm-generic/qrwlock.h:101 [inline]
 __raw_write_lock_bh include/linux/rwlock_api_smp.h:203 [inline]
 _raw_write_lock_bh+0x10a/0x170 kernel/locking/spinlock.c:334
 ___neigh_create+0xd32/0x1db0 net/core/neighbour.c:682
 __neigh_create+0x32/0x40 net/core/neighbour.c:737
 ip6_finish_output2+0x9d0/0x1840 net/ipv6/ip6_output.c:125
 __ip6_finish_output net/ipv6/ip6_output.c:201 [inline]
 ip6_finish_output+0x50f/0xa60 net/ipv6/ip6_output.c:212
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:233
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x7cf/0xdc0 net/ipv6/ndisc.c:509
 ndisc_send_rs+0x47d/0x5f0 net/ipv6/ndisc.c:719
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3984
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
 expire_timers kernel/time/timer.c:1555 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1826
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
 __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:call_rcu+0xdff/0x1340 kernel/rcu/tree.c:2926
Code: 41 80 3c 06 00 74 08 4c 89 ef e8 ec 2e 5c 00 48 8b 05 15 c9 9a 05 49 03 45 00 48 39 c3 7f 62 fb 49 bd 00 00 00 00 00 fc ff df <48> c7 84 24 80 00 00 00 0e 36 e0 45 48 8b 44 24 78 49 c7 44 05 00
RSP: 0018:ffffc900057e6d80 EFLAGS: 00000287
RAX: 0000000000002710 RBX: 000000000000003b RCX: ffffffff81609158
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881f7138d10
RBP: ffffc900057e6ee8 R08: dffffc0000000000 R09: ffffed103ee271a3
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1103ee271a2
R13: dffffc0000000000 R14: 1ffff1103ee271a8 R15: ffff8881f7138d10
 put_task_struct_rcu_user+0x58/0x90 kernel/exit.c:233
 finish_task_switch+0x343/0x7b0 kernel/sched/core.c:5331
 context_switch kernel/sched/core.c:5421 [inline]
 __schedule+0xcaf/0x1550 kernel/sched/core.c:6744
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:7056
 raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:396
 irqentry_exit+0x30/0x40 kernel/entry/common.c:439
 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: 0010:rt_mutex_futex_unlock+0x1a0/0x1f0 kernel/locking/rtmutex_api.c:205
Code: 18 48 89 f8 48 c1 e8 03 42 80 3c 28 00 74 05 e8 b6 ff 9d fc 49 c7 44 24 18 00 00 00 00 4c 89 e7 48 8b 74 24 18 e8 b0 a2 00 00 <48> c7 44 24 20 0e 36 e0 45 43 c7 44 35 00 00 00 00 00 43 c7 44 35
RSP: 0018:ffffc900057e7220 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc900057e7260 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffffc900057e72f8 R08: dffffc0000000000 R09: ffffed1020074cae
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff86fb5c70
R13: dffffc0000000000 R14: 1ffff92000afce48 R15: 1ffff92000afce4c
 rcu_preempt_deferred_qs_irqrestore+0x73d/0x9e0 kernel/rcu/tree_plugin.h:571
 rcu_read_unlock_special+0xdb/0x4e0 kernel/rcu/tree_plugin.h:681
 __rcu_read_unlock+0x7e/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:832 [inline]
 page_ext_put+0x1c/0x30 mm/page_ext.c:187
 __reset_page_owner+0x175/0x190 mm/page_owner.c:176
 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:5803
 __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:174
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:316
 irqentry_exit+0x12/0x40 kernel/entry/common.c:419
 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: 0033:0x7f40dd63e1b7
Code: Unable to access opcode bytes at 0x7f40dd63e18d.
RSP: 002b:00007f40de5d5040 EFLAGS: 00000217
RAX: 0000000000000000 RBX: 00007f40dd906130 RCX: 00007f40dd7779f9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 000000000000000a
RBP: 00007f40dd7e58ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f40dd906130 R15: 00007ffcaaa8aa08
 </TASK>