RBP: 00007f885c036aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f885c1aafa0 R15: 00007fff2fa3b5e8
 </TASK>
watchdog: BUG: soft lockup - CPU#0 stuck for 226s! [syz.8.56:683]
Modules linked in:
CPU: 0 PID: 683 Comm: syz.8.56 Not tainted 5.15.173-syzkaller-00161-gb4bd207b0380 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:unwind_done arch/x86/include/asm/unwind.h:46 [inline]
RIP: 0010:unwind_get_return_address+0x1d/0x90 arch/x86/kernel/unwind_frame.c:16
Code: 7d 00 eb a1 cc cc cc cc cc cc cc cc cc 55 48 89 e5 41 57 41 56 53 48 89 fb 49 be 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 48 83 3b 00 74 3a 48 83 c3 48 49 89 df 49
RSP: 0018:ffffc90000007178 EFLAGS: 00000a02
RAX: 1ffff92000000e34 RBX: ffffc900000071a0 RCX: 0000000000007101
RDX: 1ffff92000000e36 RSI: ffffc90000a07b60 RDI: ffffc900000071a0
RBP: ffffc90000007190 R08: ffffc90000007288 R09: 0000000000000024
R10: ffffc90000007290 R11: dffffc0000000001 R12: ffff88810aa80000
R13: ffffffff815f8670 R14: dffffc0000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001480 CR3: 0000000006a0f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0xf3/0x140 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:433 [inline]
 ____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:512
 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:521
 kasan_kmalloc include/linux/kasan.h:227 [inline]
 __kmalloc+0x13f/0x2c0 mm/slub.c:4431
 kmalloc include/linux/slab.h:608 [inline]
 kzalloc include/linux/slab.h:733 [inline]
 neigh_alloc net/core/neighbour.c:438 [inline]
 ___neigh_create+0x6d0/0x1bd0 net/core/neighbour.c:591
 __neigh_create+0x32/0x40 net/core/neighbour.c:679
 ip6_finish_output2+0x9ee/0x16f0 net/ipv6/ip6_output.c:127
 __ip6_finish_output+0x60f/0x7c0 net/ipv6/ip6_output.c:201
 ip6_finish_output+0x31/0x210 net/ipv6/ip6_output.c:211
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1f7/0x4c0 net/ipv6/ip6_output.c:234
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x73e/0xc90 net/ipv6/ndisc.c:511
 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
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5024
Code: 74 08 4c 89 ff e8 b1 73 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 39 56 9a 03 fb 49 8d 9d 38 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:ffffc90000a070a0 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff88810aa80b38 RCX: 0000000000000002
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000a070f0 R08: ffffffff81920849 R09: fffffbfff0e53503
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f70378c0
R13: ffff88810aa80000 R14: 1ffff1103ee07081 R15: ffff8881f7038408
 context_switch kernel/sched/core.c:5155 [inline]
 __schedule+0xcd4/0x1590 kernel/sched/core.c:6512
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:6916
 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398
 irqentry_exit+0x30/0x40 kernel/entry/common.c:432
 sysvec_apic_timer_interrupt+0x64/0xc0 arch/x86/kernel/apic/apic.c:1108
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:preempt_schedule_common+0x1c/0xf0 kernel/sched/core.c:6696
Code: 5d c3 e8 07 00 00 00 eb cc e8 d0 9c fb ff 55 48 89 e5 41 57 41 56 53 49 bf 00 00 00 00 00 fc ff df eb 0d 48 f7 03 08 00 00 00 <0f> 84 bb 00 00 00 65 ff 05 af 92 1c 7b 65 8b 05 a8 92 1c 7b 25 ff
RSP: 0018:ffffc90000a07398 EFLAGS: 00000246
RAX: 1ffff11021550000 RBX: ffff88810aa80000 RCX: ffffffff84e5db6e
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88810aa80000
RBP: ffffc90000a073b0 R08: dffffc0000000000 R09: ffffed1021550001
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000140e7c
R13: 0400000000000080 R14: ffffffff84e5daa9 R15: dffffc0000000000
 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6713
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock+0x60/0x70 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:403 [inline]
 zap_pte_range mm/memory.c:1515 [inline]
 zap_pmd_range mm/memory.c:1574 [inline]
 zap_pud_range mm/memory.c:1603 [inline]
 zap_p4d_range mm/memory.c:1624 [inline]
 unmap_page_range+0x1976/0x1ed0 mm/memory.c:1645
 unmap_single_vma mm/memory.c:1690 [inline]
 unmap_vmas+0x389/0x560 mm/memory.c:1722
 exit_mmap+0x3e4/0x940 mm/mmap.c:3215
 __mmput+0x95/0x310 kernel/fork.c:1180
 mmput+0x5b/0x170 kernel/fork.c:1203
 exit_mm kernel/exit.c:554 [inline]
 do_exit+0xb9c/0x2ca0 kernel/exit.c:867
 do_group_exit+0x141/0x310 kernel/exit.c:1002
 get_signal+0x7a3/0x1630 kernel/signal.c:2907
 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
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f885bfbad29
Code: Unable to access opcode bytes at RIP 0x7f885bfbacff.
RSP: 002b:00007f885a62c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f885c1aafa0 RCX: 00007f885bfbad29
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000009
RBP: 00007f885c036aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f885c1aafa0 R15: 00007fff2fa3b5e8
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 1196 Comm: syz.0.109 Not tainted 5.15.173-syzkaller-00161-gb4bd207b0380 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:lapic_next_event+0x61/0x70 arch/x86/kernel/apic/apic.c:469
Code: 9d 68 f3 04 48 83 c3 10 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 5b da 7f 00 bf 80 03 00 00 44 89 f6 ff 13 31 c0 <5b> 41 5e 41 5f 5d c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41
RSP: 0018:ffffc900001cf958 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffffff862649e8 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 00000000000000e6 RDI: 0000000000000838
RBP: ffffc900001cf970 R08: ffffffff8163d3bb R09: ffffffff8163d2ad
R10: 0000000000000002 R11: ffff888110cca780 R12: 0000000000000020
R13: dffffc0000000000 R14: 00000000000000e6 R15: dffffc0000000000
FS:  00007f5ed8a686c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f550d96dfaa CR3: 0000000131a65000 CR4: 00000000003506a0
DR0: 0000000020000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 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:1826
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0xfb/0x3f0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x53/0xc0 arch/x86/kernel/apic/apic.c:1108
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:update_stack_state+0x3bf/0x460 arch/x86/kernel/unwind_frame.c:242
Code: e7 a5 7d 00 65 48 8b 05 7f 54 cd 7e 49 39 06 74 0d 48 89 df e8 42 fc ff ff 49 89 c6 eb 19 48 89 d8 48 c1 e8 03 42 80 3c 38 00 <74> 08 48 89 df e8 b7 a5 7d 00 4c 8b 33 48 8b 5d d0 48 83 c3 48 48
RSP: 0018:ffffc900001cfc10 EFLAGS: 00000246
RAX: 1ffff9200003a180 RBX: ffffc900001d0c00 RCX: 1ffff92000039fb7
RDX: 1ffff92000039fae RSI: ffffc900001d0bf8 RDI: ffffc900001cfdb8
RBP: ffffc900001cfcc8 R08: ffffc900001cfe48 R09: 0000000000000011
R10: ffffc900001cfe50 R11: dffffc0000000001 R12: 1ffff92000039fb4
R13: 0000000000000000 R14: ffffc900001cfd88 R15: dffffc0000000000
 unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:305
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:45
 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
 ____kasan_slab_free+0x126/0x160 mm/kasan/common.c:365
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373
 kasan_slab_free include/linux/kasan.h:193 [inline]
 slab_free_hook mm/slub.c:1723 [inline]
 slab_free_freelist_hook+0xbd/0x190 mm/slub.c:1749
 slab_free mm/slub.c:3521 [inline]
 kfree+0xcc/0x270 mm/slub.c:4583
 skb_free_head net/core/skbuff.c:656 [inline]
 skb_release_data+0x8a9/0xa80 net/core/skbuff.c:678
 skb_release_all net/core/skbuff.c:743 [inline]
 __kfree_skb net/core/skbuff.c:757 [inline]
 consume_skb+0xac/0x250 net/core/skbuff.c:930
 dummy_xmit+0x13f/0x1c0 drivers/net/dummy.c:64
 __netdev_start_xmit include/linux/netdevice.h:5059 [inline]
 netdev_start_xmit include/linux/netdevice.h:5073 [inline]
 xmit_one net/core/dev.c:3625 [inline]
 dev_hard_start_xmit+0x228/0x620 net/core/dev.c:3641
 __dev_queue_xmit+0x1856/0x2e80 net/core/dev.c:4264
 dev_queue_xmit+0x17/0x20 net/core/dev.c:4297
 neigh_resolve_output+0x6b8/0x760 net/core/neighbour.c:1504
 neigh_output include/net/neighbour.h:517 [inline]
 ip6_finish_output2+0xf95/0x16f0 net/ipv6/ip6_output.c:130
 __ip6_finish_output+0x60f/0x7c0 net/ipv6/ip6_output.c:201
 ip6_finish_output+0x31/0x210 net/ipv6/ip6_output.c:211
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1f7/0x4c0 net/ipv6/ip6_output.c:234
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x73e/0xc90 net/ipv6/ndisc.c:511
 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
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:call_rcu+0xcb2/0x10b0 kernel/rcu/tree.c:3126
Code: 41 80 3c 04 00 74 08 4c 89 ef e8 09 2e 56 00 48 8b 05 22 22 5e 05 49 03 45 00 48 39 c3 7f 58 fb 49 bc 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 04 04 00
RSP: 0018:ffffc90000f674e0 EFLAGS: 00000287
RAX: 0000000000002710 RBX: 0000000000000103 RCX: ffffffff815c908b
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881f7138c08
RBP: ffffc90000f67608 R08: dffffc0000000000 R09: ffffed103ee27182
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881f7138c38 R14: 1ffff1103ee27181 R15: ffff8881f7138c08
 put_task_struct_rcu_user+0x58/0x90 kernel/exit.c:228
 finish_task_switch+0x343/0x7b0 kernel/sched/core.c:5065
 context_switch kernel/sched/core.c:5155 [inline]
 __schedule+0xcd4/0x1590 kernel/sched/core.c:6512
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:6916
 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398
 irqentry_exit+0x30/0x40 kernel/entry/common.c:432
 sysvec_apic_timer_interrupt+0x64/0xc0 arch/x86/kernel/apic/apic.c:1108
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:vmacache_valid_mm mm/vmacache.c:32 [inline]
RIP: 0010:vmacache_update+0x92/0x120 mm/vmacache.c:37
Code: e8 f3 72 0d 00 4c 39 23 74 07 e8 b9 1a cb ff eb 77 49 8d 5d 2c 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 75 65 44 8b 23 bb 00 00 20 00 be 00 00 20 00 44 21 e6 31 ff
RSP: 0018:ffffc90000f67938 EFLAGS: 00000a07
RAX: 0000000000000000 RBX: ffff888110cca7ac RCX: dffffc0000000000
RDX: ffffc9000c523000 RSI: 000000000000007d RDI: 000000000000007e
RBP: ffffc90000f67960 R08: ffffffff81a9b107 R09: ffffed10219e2961
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88810cf14a80
R13: ffff888110cca780 R14: 0000000000000000 R15: ffff88812b8906f0
 __find_vma+0x136/0x150 mm/mmap.c:2322
 find_vma include/linux/mm.h:2759 [inline]
 do_user_addr_fault arch/x86/mm/fault.c:1379 [inline]
 handle_page_fault arch/x86/mm/fault.c:1509 [inline]
 exc_page_fault+0x2ea/0x7f0 arch/x86/mm/fault.c:1565
 asm_exc_page_fault+0x27/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0010:copy_user_generic_unrolled+0x86/0xc0 arch/x86/lib/copy_user_64.S:91
Code: 4c 8b 5e 38 4c 89 47 20 4c 89 4f 28 4c 89 57 30 4c 89 5f 38 48 8d 76 40 48 8d 7f 40 ff c9 75 b6 89 d1 83 e2 07 c1 e9 03 74 12 <4c> 8b 06 4c 89 07 48 8d 76 08 48 8d 7f 08 ff c9 75 ee 21 d2 74 10
RSP: 0018:ffffc90000f67ba0 EFLAGS: 00050202
RAX: ffffffff82660001 RBX: 0000000000000008 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90000f67d50
RBP: ffffc90000f67bd0 R08: dffffc0000000000 R09: fffff520001ecfab
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000008
R13: 00007ffffffff000 R14: ffffc90000f67d50 R15: 0000000000000000
 copy_from_user include/linux/uaccess.h:192 [inline]
 _perf_ioctl kernel/events/core.c:5778 [inline]
 perf_ioctl+0x660/0x2100 kernel/events/core.c:5882
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0x114/0x190 fs/ioctl.c:860
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860
 x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5eda3f6d29
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:00007f5ed8a68038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f5eda5e6fa0 RCX: 00007f5eda3f6d29
RDX: 0000000000000000 RSI: 0000000040082404 RDI: 0000000000000008
RBP: 00007f5eda472aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5eda5e6fa0 R15: 00007fffd7b73ab8
 </TASK>