watchdog: BUG: soft lockup - CPU#1 stuck for 116s! [syz.4.1110:6160]
Modules linked in:
CPU: 1 PID: 6160 Comm: syz.4.1110 Not tainted 5.15.167-syzkaller-02003-g5e4635681cf1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:queued_write_lock_slowpath+0x154/0x440 kernel/locking/qrwlock.c:78
Code: a2 76 5d 00 f0 41 81 0f 00 01 00 00 48 8b 5c 24 08 43 0f b6 04 2e 84 c0 0f 85 94 00 00 00 41 8b 07 3d 00 01 00 00 74 27 f3 90 <43> 0f b6 04 2e 84 c0 74 eb 44 89 f9 80 e1 07 80 c1 03 38 c1 7c de
RSP: 0018:ffffc900001d0460 EFLAGS: 00000206
RAX: 00000000000001ff RBX: 1ffff9200003a096 RCX: ffffffff815534be
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff871969c8
RBP: ffffc900001d0510 R08: dffffc0000000000 R09: fffffbfff0e32d3a
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900001d04b0
R13: dffffc0000000000 R14: 1ffffffff0e32d39 R15: ffffffff871969c8
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001fc0 CR3: 0000000006a0f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <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
 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:_compound_head include/linux/page-flags.h:205 [inline]
RIP: 0010:PageAnon include/linux/page-flags.h:510 [inline]
RIP: 0010:page_remove_rmap+0x108/0x1420 mm/rmap.c:1430
Code: 89 f0 48 c1 e8 03 48 89 44 24 28 80 3c 18 00 74 08 4c 89 f7 e8 79 36 07 00 49 8b 1e 48 89 de 48 83 e6 01 31 ff e8 c8 e8 c4 ff <48> 89 d8 48 83 e0 01 0f 85 cf 0e 00 00 e8 76 e4 c4 ff 48 8b 5c 24
RSP: 0018:ffffc90000c37380 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888135608000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000c374b0 R08: ffffffff81ab72f8 R09: fffff94000c60769
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000186e88
R13: 1ffff92000186e8a R14: ffffea0006303b48 R15: 0000000000000000
 zap_pte_range mm/memory.c:1437 [inline]
 zap_pmd_range mm/memory.c:1562 [inline]
 zap_pud_range mm/memory.c:1591 [inline]
 zap_p4d_range mm/memory.c:1612 [inline]
 unmap_page_range+0x112e/0x1ed0 mm/memory.c:1633
 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: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
 __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: 0033:0x7fccd5b92ff9
Code: Unable to access opcode bytes at RIP 0x7fccd5b92fcf.
RSP: 002b:00007fccd480c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007fccd5d4af80 RCX: 00007fccd5b92ff9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007fccd5c05296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fccd5d4af80 R15: 00007fffc2c626f8
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6235 Comm: syz.2.1124 Not tainted 5.15.167-syzkaller-02003-g5e4635681cf1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__sanitizer_cov_trace_pc+0x5d/0x60 kernel/kcov.c:216
Code: 0b 00 00 83 fa 02 75 21 48 8b 91 40 0b 00 00 48 8b 32 48 8d 7e 01 8b 89 3c 0b 00 00 48 39 cf 73 08 48 89 44 f2 08 48 89 3a 5d <c3> 66 90 55 48 89 e5 4c 8b 45 08 65 48 8b 15 90 15 92 7e 65 8b 05
RSP: 0000:ffffc90000006c70 EFLAGS: 00000006
RAX: ffffffff81bf7a15 RBX: ffff888120e12c18 RCX: ffff8881517fa780
RDX: 0000000000010100 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffffc90000006ca8 R08: dffffc0000000000 R09: ffffed10241c2581
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000046
R13: ffff8881230e0980 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f9378fac6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d81cff8 CR3: 000000014a794000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 perf_event_wakeup kernel/events/core.c:6579 [inline]
 perf_pending_event+0x4de/0x740 kernel/events/core.c:6662
 irq_work_single kernel/irq_work.c:155 [inline]
 irq_work_run_list+0x1c2/0x290 kernel/irq_work.c:177
 irq_work_run+0x69/0xf0 kernel/irq_work.c:186
 __sysvec_irq_work+0x63/0x1b0 arch/x86/kernel/irq_work.c:22
 sysvec_irq_work+0x41/0xb0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x1b/0x20 arch/x86/include/asm/idtentry.h:664
RIP: 0010:update_stack_state+0x0/0x460 arch/x86/kernel/unwind_frame.c:188
Code: ff 4c 89 e7 e8 c1 a3 7d 00 e9 69 fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 48 89 e5 48 8b 07 5d c3 0f 1f 80 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 81 ec 90 00 00 00 48 89
RSP: 0000:ffffc90000006ed8 EFLAGS: 00000282
RAX: 0000000000000000 RBX: ffffc90000006f50 RCX: 0000000000000002
RDX: ffffc90000008000 RSI: ffffc90000006f50 RDI: ffffc90000006f60
RBP: ffffc90000006f50 R08: dffffc0000000000 R09: ffffc90000006f60
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff8881517fa780 R14: ffffc90000007000 R15: ffffc90000006f60
 unwind_start arch/x86/include/asm/unwind.h:60 [inline]
 arch_stack_walk+0xdb/0x140 arch/x86/kernel/stacktrace.c:24
 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
 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:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:6916
Code: 4c 89 e7 e8 90 7c cd fc f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 34 2f 67 fc fb bf 01 00 00 00 <e8> e9 e3 ff ff fa bf 01 00 00 00 e8 be 30 67 fc 65 48 8b 1d 76 40
RSP: 0000:ffffc90001447d40 EFLAGS: 00000246
RAX: 1ffff1102a2ff646 RBX: 1ffff92000288fac RCX: ffffffff84e6ff00
RDX: 1ffff1102a2ff4f5 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90001447dd8 R08: ffffffff874ce000 R09: ffffffff874ce008
R10: ffffffff874ce018 R11: ffffffff874ce010 R12: ffffc90001447d60
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000288fa8
 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398
 irqentry_exit+0x30/0x40 kernel/entry/common.c:432
 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: 0010:exit_to_user_mode_loop+0x46/0xe0 kernel/entry/common.c:168
Code: 30 f2 56 00 e8 3b ae f7 00 fa e8 25 9f 81 03 65 48 8b 05 9d 3d a3 7e 48 8b 18 f7 c3 0e 30 02 00 0f 84 87 00 00 00 fb f6 c3 08 <74> 05 e8 73 f6 85 03 f7 c3 00 10 00 00 74 08 4c 89 f7 e8 f3 db 37
RSP: 0000:ffffc90001447ed0 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000008 RCX: ffff8881517fa780
RDX: 1ffff1102a2ff4f5 RSI: 0000000000000008 RDI: ffffc90001447f58
RBP: ffffc90001447ee0 R08: ffffffff874ce000 R09: ffffffff874ce008
R10: ffffffff874ce018 R11: ffffffff874ce010 R12: 0000000000000000
R13: 0000000000000000 R14: ffffc90001447f58 R15: ffff8881517fa780
 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: 0033:0x7f937a332ff9
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:00007f9378fac038 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f937a4eaf80 RCX: 00007f937a332ff9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007f937a3a5296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f937a4eaf80 R15: 00007ffc759dcde8
 </TASK>