watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.4.401:3398]
Modules linked in:
CPU: 0 PID: 3398 Comm: syz.4.401 Not tainted 5.15.169-syzkaller-00144-g252009836bae #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:unwind_next_frame+0x3af/0x700 arch/x86/kernel/unwind_frame.c:301
Code: eb 35 65 48 8b 05 a1 5b cd 7e 48 39 45 98 74 0b 48 8b 7d d0 e8 62 03 00 00 eb 1c 48 8b 5d d0 48 89 d8 48 c1 e8 03 80 3c 10 00 <74> 08 48 89 df e8 b7 ac 7d 00 48 8b 03 4c 89 f7 48 89 45 d0 48 89
RSP: 0000:ffffc90000006ed8 EFLAGS: 00000246
RAX: 1ffff92000000fe1 RBX: ffffc90000007f08 RCX: 0000000000006f01
RDX: dffffc0000000000 RSI: ffffffff816085f9 RDI: ffffc90000f67f48
RBP: ffffc90000006f50 R08: ffffc90000007048 R09: 0000000000000012
R10: ffffc90000007050 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffc90000006fb0 R14: ffffc90000006f60 R15: 1ffff92000000dec
FS:  00007fa2001296c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000006 CR3: 000000013d706000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xd3/0xf0 mm/kasan/generic.c:348
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
 kvfree_call_rcu+0xb1/0x8b0 kernel/rcu/tree.c:3644
 neigh_destroy+0x411/0x540 net/core/neighbour.c:860
 neigh_release include/net/neighbour.h:427 [inline]
 neigh_cleanup_and_release+0x73/0x1b0 net/core/neighbour.c:103
 neigh_del net/core/neighbour.c:197 [inline]
 neigh_remove_one+0x3a6/0x430 net/core/neighbour.c:218
 neigh_forced_gc net/core/neighbour.c:251 [inline]
 neigh_alloc net/core/neighbour.c:429 [inline]
 ___neigh_create+0x474/0x1bd0 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:exit_to_user_mode_loop+0x46/0xe0 kernel/entry/common.c:168
Code: a0 f9 56 00 e8 cb c9 f7 00 fa e8 35 f2 81 03 65 48 8b 05 ad 2f a3 7e 48 8b 18 f7 c3 0e 30 02 00 0f 84 87 00 00 00 fb f6 c3 08 <74> 05 e8 53 49 86 03 f7 c3 00 10 00 00 74 08 4c 89 f7 e8 53 dc 37
RSP: 0000:ffffc90000f67ed0 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000008 RCX: ffff888114692780
RDX: 1ffff110228d24f5 RSI: 0000000000000008 RDI: ffffc90000f67f58
RBP: ffffc90000f67ee0 R08: ffffffff874d2000 R09: ffffffff874d2008
R10: ffffffff874d2018 R11: ffffffff874d2010 R12: 0000000000000000
R13: 0000000000000000 R14: ffffc90000f67f58 R15: ffff888114692780
 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+0x64/0xc0 arch/x86/kernel/apic/apic.c:1108
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0033:0x7fa201970f33
Code: f8 13 00 48 81 c4 90 00 00 00 48 98 5b c3 66 0f 1f 84 00 00 00 00 00 41 54 55 53 48 89 fb 48 81 ec d0 00 00 00 48 89 74 24 28 <48> 89 54 24 30 48 89 4c 24 38 4c 89 44 24 40 4c 89 4c 24 48 84 c0
RSP: 002b:00007fa200128f90 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 00007fa201b26547 RCX: 00007fa201b27f70
RDX: 0000000000001c5e RSI: 0000000000000000 RDI: 00007fa201b26547
RBP: 0000000000000006 R08: 0000000000000006 R09: 00007ffe31d990b0
R10: 0000000000047958 R11: 00000000000005c5 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa201c77fa0 R15: 00007ffe31cbbea8
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3135 Comm: syz.9.380 Not tainted 5.15.169-syzkaller-00144-g252009836bae #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:asm_sysvec_irq_work+0x0/0x20 arch/x86/include/asm/idtentry.h:707
Code: e8 d5 0a e1 ff e9 b0 03 00 00 0f 01 ca fc 6a ff e8 b5 02 00 00 48 89 c4 48 8d 6c 24 01 48 89 e7 e8 05 01 e1 ff e9 90 03 00 00 <0f> 01 ca fc 6a ff e8 95 02 00 00 48 89 c4 48 8d 6c 24 01 48 89 e7
RSP: 0018:ffffc900001d0438 EFLAGS: 00000046
RAX: 00000000000001ff RBX: 1ffff9200003a096 RCX: ffffffff815542ae
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff871971c8
RBP: ffffc900001d0510 R08: dffffc0000000000 R09: fffffbfff0e32e3a
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900001d04b0
R13: dffffc0000000000 R14: 1ffffffff0e32e39 R15: ffffffff871971c8
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa201b0ffa0 CR3: 000000010d06b000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 queued_write_lock include/asm-generic/qrwlock.h:97 [inline]
 __raw_write_lock_bh include/linux/rwlock_api_smp.h:204 [inline]
 _raw_write_lock_bh+0x10a/0x170 kernel/locking/spinlock.c:324
 neigh_forced_gc net/core/neighbour.c:236 [inline]
 neigh_alloc net/core/neighbour.c:429 [inline]
 ___neigh_create+0x1f3/0x1bd0 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:__schedule+0x0/0x1590 kernel/sched/core.c:6390
Code: 4c 89 25 73 af 1d 02 eb 05 e8 7c f4 8a fc 48 c7 c7 80 f4 57 87 e8 e0 df 01 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec c0 00
RSP: 0018:ffffc900007df338 EFLAGS: 00000246
RAX: 1ffff110218de646 RBX: ffff88810c6f2780 RCX: ffffffff84e76000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001
RBP: ffffc900007df3c8 R08: dffffc0000000000 R09: ffffed10218de4f1
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900007df360
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920000fbe68
 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:pte_lockptr include/linux/mm.h:2277 [inline]
RIP: 0010:zap_pte_range mm/memory.c:1395 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:1562 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1591 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1612 [inline]
RIP: 0010:unmap_page_range+0x9bb/0x1ed0 mm/memory.c:1633
Code: ff 48 89 8c 24 38 01 00 00 ba 10 00 00 00 48 8d bc 24 a0 01 00 00 31 f6 e8 42 8e 0b 00 48 8b 84 24 b0 00 00 00 42 80 3c 20 00 <74> 08 48 89 df e8 0b 8c 0b 00 4c 8b 3b 31 c0 48 89 84 24 e8 00 00
RSP: 0018:ffffc900007df4c0 EFLAGS: 00000246
RAX: 1ffff11021ddad19 RBX: ffff88810eed68c8 RCX: 0000000000000000
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc900007df670
RBP: ffffc900007df6f0 R08: dffffc0000000000 R09: ffffc900007df660
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0400000000000080 R14: 1ffff11021dda3e4 R15: 00007faca33e4000
 unmap_single_vma mm/memory.c:1678 [inline]
 unmap_vmas+0x389/0x560 mm/memory.c:1710
 exit_mmap+0x3e4/0x940 mm/mmap.c:3215
 __mmput+0x95/0x310 kernel/fork.c:1179
 mmput+0x5b/0x170 kernel/fork.c:1202
 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: 0033:0x7faca43f0f19
Code: Unable to access opcode bytes at RIP 0x7faca43f0eef.
RSP: 002b:00007faca2a68058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007faca45b6fa0 RCX: 00007faca43f0f19
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000007
RBP: 00007faca4464986 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007faca45b6fa0 R15: 00007ffc38e080a8
 </TASK>