watchdog: BUG: soft lockup - CPU#0 stuck for 116s! [syz.2.236:1666]
Modules linked in:
CPU: 0 PID: 1666 Comm: syz.2.236 Not tainted 5.15.160-syzkaller-00026-ge6fb3b0fa87f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_frame.c:19
Code: 3b 00 74 3a 48 83 c3 48 49 89 df 49 c1 ef 03 43 80 3c 37 00 74 08 48 89 df e8 9b b7 7d 00 48 8b 3b e8 03 ae 14 00 85 c0 74 14 <43> 80 3c 37 00 74 08 48 89 df e8 80 b7 7d 00 48 8b 03 eb 02 31 c0
RSP: 0018:ffffc900000076d8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffc90000007748 RCX: 0000000000007701
RDX: 1ffff92000000ee2 RSI: ffffc90001287818 RDI: ffffffff84dfdec0
RBP: ffffc900000076f0 R08: ffffc900000077e8 R09: 0000000000000010
R10: ffffc900000077f0 R11: dffffc0000000001 R12: ffff88810d343b40
R13: ffffffff815f8790 R14: dffffc0000000000 R15: 1ffff92000000ee9
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffff0000 CR3: 0000000123170000 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_slab_alloc+0xb1/0xe0 mm/kasan/common.c:466
 kasan_slab_alloc include/linux/kasan.h:217 [inline]
 slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:550
 slab_alloc_node mm/slub.c:3240 [inline]
 slab_alloc mm/slub.c:3248 [inline]
 kmem_cache_alloc+0xf5/0x200 mm/slub.c:3253
 kmem_cache_alloc_node include/linux/slab.h:474 [inline]
 __alloc_skb+0xbe/0x550 net/core/skbuff.c:416
 alloc_skb include/linux/skbuff.h:1183 [inline]
 ndisc_alloc_skb+0xf3/0x2d0 net/ipv6/ndisc.c:421
 ndisc_send_rs+0x26c/0x6a0 net/ipv6/ndisc.c:687
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3978
 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
 __do_softirq+0x26d/0x5bf kernel/softirq.c:565
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660
 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 00 77 ce 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 84 17 68 fc fb bf 01 00 00 00 <e8> e9 e3 ff ff fa bf 01 00 00 00 e8 0e 19 68 fc 65 48 8b 1d c6 30
RSP: 0018:ffffc90001287780 EFLAGS: 00000246
RAX: 1ffff11021a688be RBX: 1ffff92000250ef4 RCX: ffffffff84e60e00
RDX: 1ffffffff0e99800 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90001287808 R08: ffffffff874cc000 R09: ffffffff874cc008
R10: ffffffff874cc018 R11: ffffffff874cc010 R12: ffffc900012877a0
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000250ef0
 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398
 irqentry_exit+0x30/0x40 kernel/entry/common.c:432
 sysvec_irq_work+0x52/0xb0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x1b/0x20 arch/x86/include/asm/idtentry.h:664
RIP: 0010:do_futex+0x13ff/0x37f0 kernel/futex/core.c:4024
Code: 00 00 c6 41 73 00 65 48 8b 0c 25 28 00 00 00 48 3b 8c 24 c0 04 00 00 0f 85 bf 22 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f <5d> c3 e8 ba 9b 0b 00 45 31 ff 48 8b 84 24 80 00 00 00 48 8b 8c 24
RSP: 0018:ffffc90001287908 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fffffffeffd RCX: 049b9f9bef73fb00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90001287908 R08: ffffffff816501e8 R09: ffffed10210b4ee1
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88810d3441f8
R13: dffffc0000000000 R14: ffff88810d343b40 R15: 1ffff11021a6883f
 mm_release+0x1f0/0x330 kernel/fork.c:1470
 exit_mm_release+0x25/0x30 kernel/fork.c:1487
 exit_mm kernel/exit.c:489 [inline]
 do_exit+0x662/0x2ca0 kernel/exit.c:865
 do_group_exit+0x141/0x310 kernel/exit.c:1000
 get_signal+0x7a3/0x1630 kernel/signal.c:2896
 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: 0033:0x7ffb4728def9
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:00007ffb45f07038 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007ffb47445f80 RCX: 00007ffb4728def9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007ffb47300b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ffb47445f80 R15: 00007ffc090d2ff8
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 1597 Comm: syz.1.228 Not tainted 5.15.160-syzkaller-00026-ge6fb3b0fa87f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:preempt_count_sub+0x1/0x160 kernel/sched/core.c:5645
Code: 68 9b 29 87 80 e1 07 80 c1 03 38 c1 0f 8c 78 ff ff ff 48 c7 c7 68 9b 29 87 e8 ab 5d 66 00 e9 67 ff ff ff 66 0f 1f 44 00 00 55 <48> 89 e5 41 56 53 89 fb 48 c7 c0 80 3f 4d 87 48 c1 e8 03 49 be 00
RSP: 0018:ffffc900001cffc8 EFLAGS: 00000046
RAX: 0000000000000200 RBX: ffff8881212db7c0 RCX: ffffffff84e604e7
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffffc900001cffe8 R08: dffffc0000000000 R09: ffffed102425b6f9
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000046
R13: ffff88810c721a00 R14: 0000000000000046 R15: ffff8881212db7c0
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffff0000 CR3: 000000010c494000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 kill_fasync_rcu fs/fcntl.c:1023 [inline]
 kill_fasync+0x17c/0x250 fs/fcntl.c:1035
 perf_event_wakeup kernel/events/core.c:6564 [inline]
 perf_pending_event+0x4de/0x740 kernel/events/core.c:6647
 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:__find_rr_leaf+0x144/0xb70 net/ipv6/route.c:796
Code: 89 7c 24 28 4c 89 6c 24 10 48 89 9c 24 80 00 00 00 4d 85 ff 74 3d 49 8d 9c 24 80 00 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 30 <84> c0 0f 85 6f 05 00 00 44 8b 2b 44 89 ef 8b 5c 24 5c 89 de e8 63
RSP: 0018:ffffc900001d0260 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffff88812107c480 RCX: ffff88811c39cf00
RDX: 0000000000000101 RSI: 00000000fffffffd RDI: 00000000fffffffd
RBP: ffffc900001d03d8 R08: ffffffff8458d1a2 R09: ffffc900001d0510
R10: ffffc900001d0500 R11: dffffc0000000001 R12: ffff88812107c400
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc900001d04e0
 find_rr_leaf net/ipv6/route.c:848 [inline]
 rt6_select net/ipv6/route.c:892 [inline]
 fib6_table_lookup+0x338/0xaf0 net/ipv6/route.c:2186
 ip6_pol_route+0x151/0x14b0 net/ipv6/route.c:2222
 ip6_pol_route_input+0x55/0x80 net/ipv6/route.c:2280
 pol_lookup_func include/net/ip6_fib.h:592 [inline]
 fib6_rule_lookup+0x25a/0x620 net/ipv6/fib6_rules.c:115
 ip6_route_input_lookup net/ipv6/route.c:2292 [inline]
 ip6_route_input+0x724/0xb60 net/ipv6/route.c:2588
 ip6_rcv_finish_core net/ipv6/ip6_input.c:66 [inline]
 ip6_rcv_finish+0x150/0x350 net/ipv6/ip6_input.c:77
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ipv6_rcv+0xeb/0x270 net/ipv6/ip6_input.c:300
 __netif_receive_skb_one_core net/core/dev.c:5492 [inline]
 __netif_receive_skb+0x1c6/0x530 net/core/dev.c:5606
 process_backlog+0x31c/0x650 net/core/dev.c:6483
 __napi_poll+0xc4/0x5a0 net/core/dev.c:7042
 napi_poll net/core/dev.c:7109 [inline]
 net_rx_action+0x47d/0xc50 net/core/dev.c:7199
 __do_softirq+0x26d/0x5bf kernel/softirq.c:565
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660
 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:call_rcu+0xdf7/0x1310 kernel/rcu/tree.c:3126
Code: 41 80 3c 06 00 74 08 4c 89 ef e8 74 2a 56 00 48 8b 05 2d 28 5e 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:ffffc90000d86f80 EFLAGS: 00000283
RAX: 0000000000002710 RBX: 000000000000015a RCX: ffffffff815c88c0
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881f7138c08
RBP: ffffc90000d870e8 R08: dffffc0000000000 R09: ffffed103ee27182
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1103ee27181
R13: dffffc0000000000 R14: 1ffff1103ee27187 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+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:_compound_head include/linux/page-flags.h:199 [inline]
RIP: 0010:PageSwapBacked include/linux/page-flags.h:374 [inline]
RIP: 0010:PageSwapCache include/linux/page-flags.h:418 [inline]
RIP: 0010:free_swap_cache+0x76/0x230 mm/swap_state.c:291
Code: 4c 89 e0 48 83 e0 01 48 89 5d d0 0f 85 a4 01 00 00 e8 7e 8f c0 ff 49 89 dc 49 8d 5c 24 08 48 89 d8 48 c1 e8 03 42 80 3c 30 00 <74> 08 48 89 df e8 40 d6 02 00 48 8b 1b 89 de 83 e6 01 31 ff e8 91
RSP: 0018:ffffc90000d87400 EFLAGS: 00000246
RAX: 1ffffd4000927e81 RBX: ffffea000493f408 RCX: ffff88811c39cf00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000d87430 R08: ffffffff81afdd0c R09: fffff94000862599
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea000493f400
R13: ffffea000493f408 R14: dffffc0000000000 R15: 1ffffd4000927e81
 free_pages_and_swap_cache+0x63/0xa0 mm/swap_state.c:319
 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
 tlb_flush_mmu+0xd0/0x180 mm/mmu_gather.c:247
 zap_pte_range mm/memory.c:1510 [inline]
 zap_pmd_range mm/memory.c:1559 [inline]
 zap_pud_range mm/memory.c:1588 [inline]
 zap_p4d_range mm/memory.c:1609 [inline]
 unmap_page_range+0x1c70/0x1ed0 mm/memory.c:1630
 unmap_single_vma mm/memory.c:1675 [inline]
 unmap_vmas+0x389/0x560 mm/memory.c:1707
 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:552 [inline]
 do_exit+0xb9c/0x2ca0 kernel/exit.c:865
 do_group_exit+0x141/0x310 kernel/exit.c:1000
 get_signal+0x7a3/0x1630 kernel/signal.c:2896
 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: 0033:0x7f8047eb2ef9
Code: Unable to access opcode bytes at RIP 0x7f8047eb2ecf.
RSP: 002b:00007f8046b2c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: 0000000000000008 RBX: 00007f804806af80 RCX: 00007f8047eb2ef9
RDX: 0000000000000010 RSI: 00000000200000c0 RDI: 0000000000000011
RBP: 00007f8047f25b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f804806af80 R15: 00007ffc53864988
 </TASK>