watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.3.3116:11851]
Modules linked in:
CPU: 1 PID: 11851 Comm: syz.3.3116 Tainted: G        W         5.10.221-syzkaller-01371-g1240968f7644 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:unwind_next_frame+0x3a0/0x700
Code: 00 74 08 4c 89 e7 e8 5f 26 76 00 49 8b 04 24 eb 35 65 48 8b 05 d1 57 d0 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 27
RSP: 0018:ffffc9000016feb8 EFLAGS: 00000246
RAX: ffff888111e03b40 RBX: 1ffff9200002dff2 RCX: 000000000016ff01
RDX: dffffc0000000000 RSI: ffffffff8440fb41 RDI: ffffc90000fd7f48
RBP: ffffc9000016ff30 R08: ffffc90000170028 R09: 000000000000000e
R10: ffffc90000170030 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffc9000016ff90 R14: ffffc9000016ff40 R15: 1ffff9200002dfe8
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff5968320f9 CR3: 000000000660f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:121
 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+0x121/0x160 mm/kasan/common.c:362
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:370
 kasan_slab_free include/linux/kasan.h:220 [inline]
 slab_free_hook mm/slub.c:1595 [inline]
 slab_free_freelist_hook+0xc0/0x190 mm/slub.c:1621
 slab_free mm/slub.c:3203 [inline]
 kmem_cache_free+0xa9/0x1e0 mm/slub.c:3219
 kfree_skbmem+0x104/0x170
 __kfree_skb net/core/skbuff.c:695 [inline]
 kfree_skb+0xc1/0x320 net/core/skbuff.c:713
 ip6_mc_input+0x233/0x2a0 net/ipv6/ip6_input.c:574
 dst_input include/net/dst.h:443 [inline]
 ip6_rcv_finish+0x185/0x350 net/ipv6/ip6_input.c:80
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ipv6_rcv+0xee/0x270 net/ipv6/ip6_input.c:301
 __netif_receive_skb_one_core net/core/dev.c:5382 [inline]
 __netif_receive_skb+0x1c6/0x530 net/core/dev.c:5496
 netif_receive_skb_internal net/core/dev.c:5601 [inline]
 netif_receive_skb+0xb0/0x480 net/core/dev.c:5660
 br_netif_receive_skb net/bridge/br_input.c:30 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 br_pass_frame_up+0x177/0x1f0 net/bridge/br_input.c:72
 br_handle_frame_finish+0xe71/0x1180 net/bridge/br_input.c:179
 nf_hook_bridge_pre net/bridge/br_input.c:259 [inline]
 br_handle_frame+0x3f0/0x8d0 net/bridge/br_input.c:363
 __netif_receive_skb_core+0x11a9/0x3760 net/core/dev.c:5276
 __netif_receive_skb_one_core net/core/dev.c:5380 [inline]
 __netif_receive_skb+0x11c/0x530 net/core/dev.c:5496
 process_backlog+0x31c/0x650 net/core/dev.c:6403
 napi_poll net/core/dev.c:6854 [inline]
 net_rx_action+0x516/0x10d0 net/core/dev.c:6924
 __do_softirq+0x268/0x5bb kernel/softirq.c:309
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0x60/0x80 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:405 [inline]
 __irq_exit_rcu+0x128/0x150 kernel/softirq.c:435
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:447
 sysvec_apic_timer_interrupt+0xbf/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:5065
Code: 4c 89 e7 e8 70 93 f7 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 c4 63 98 fc fb bf 01 00 00 00 <e8> 89 e6 ff ff fa bf 01 00 00 00 e8 4e 65 98 fc 65 48 8b 1d b6 c4
RSP: 0018:ffffc90000fd7400 EFLAGS: 00000246
RAX: 1ffff110223c08ae RBX: 1ffff920001fae84 RCX: ffffffff84b1d100
RDX: 1ffff110223c076c RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000fd7480 R08: ffffffff87082048 R09: ffffffff87082058
R10: ffffffff87082050 R11: ffffffff87082043 R12: ffffc90000fd7420
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920001fae80
 irqentry_exit_cond_resched kernel/entry/common.c:365 [inline]
 irqentry_exit+0x4f/0x60 kernel/entry/common.c:395
 sysvec_apic_timer_interrupt+0xcb/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:stack_depot_save+0x1/0x10 lib/stackdepot.c:383
Code: 05 97 86 e8 f1 32 00 00 eb d1 89 c6 48 c7 c7 c0 05 97 86 e8 e1 32 00 00 e9 76 ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 <48> 89 e5 b9 01 00 00 00 e8 c2 f9 ff ff 5d c3 55 48 89 e5 41 56 53
RSP: 0018:ffffc90000fd7570 EFLAGS: 00000293
RAX: ffffffff81ad2421 RBX: ffffc90000fd75c0 RCX: ffff888111e03b40
RDX: 0000000000002800 RSI: 0000000000000010 RDI: ffffc90000fd75c0
RBP: ffffc90000fd76a8 R08: ffffffff81ad23fa R09: 000000000000000f
R10: ffffc90000fd74f0 R11: dffffc0000000001 R12: 1ffff920001faeb4
R13: ffffffff81ad2176 R14: dffffc0000000000 R15: 0000000000002800
 __reset_page_owner+0x36/0x150 mm/page_owner.c:174
 reset_page_owner include/linux/page_owner.h:28 [inline]
 free_pages_prepare mm/page_alloc.c:1349 [inline]
 free_pcp_prepare mm/page_alloc.c:1421 [inline]
 free_unref_page_prepare+0x2ae/0x2d0 mm/page_alloc.c:3336
 free_unref_page mm/page_alloc.c:3391 [inline]
 free_the_page+0x9e/0x370 mm/page_alloc.c:5407
 __free_pages+0x67/0xc0 mm/page_alloc.c:5418
 __vunmap+0x7bc/0x8f0 mm/vmalloc.c:2301
 __vfree mm/vmalloc.c:2349 [inline]
 vfree+0x5c/0x80 mm/vmalloc.c:2380
 kcov_put kernel/kcov.c:408 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:510
 __fput+0x309/0x760 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x129/0x190 kernel/task_work.c:165
 exit_task_work include/linux/task_work.h:32 [inline]
 do_exit+0xc83/0x2a50 kernel/exit.c:861
 do_group_exit+0x141/0x310 kernel/exit.c:983
 get_signal+0x10a0/0x1410 kernel/signal.c:2782
 arch_do_signal_or_restart+0xbd/0x17c0 arch/x86/kernel/signal.c:805
 handle_signal_work kernel/entry/common.c:145 [inline]
 exit_to_user_mode_loop+0x9b/0xd0 kernel/entry/common.c:169
 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline]
 irqentry_exit_to_user_mode+0x4e/0x80 kernel/entry/common.c:287
 irqentry_exit+0x12/0x60 kernel/entry/common.c:375
 sysvec_apic_timer_interrupt+0xcb/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0033:0x7f88514adf19
Code: Unable to access opcode bytes at RIP 0x7f88514adeef.
RSP: 002b:00007f885070e048 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f885163e038 RCX: 00007f88514adf19
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 000000000000000c
RBP: 00007f885151ce68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f885163e038 R15: 00007ffee5be37b8
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 11993 Comm: syz.3.3142 Tainted: G        W         5.10.221-syzkaller-01371-g1240968f7644 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:190
Code: 00 00 00 0f 0b 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 13 00 00 00 48 8b 3d 14 e4 78 05 48 89 de e8 b4 ea 3c 00 5b 5d c3 cc <55> 48 89 e5 48 8b 45 08 65 48 8b 0d b0 c5 97 7e 65 8b 15 b5 c5 97
RSP: 0018:ffffc90000006cf8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffc90000007000 RCX: ffff88811d9793c0
RDX: 0000000000010502 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000006df0 R08: ffffffff81896736 R09: ffffc90000006e40
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000006ea0
R13: 0000000000000000 R14: ffffc90000006ea4 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f54d59900c0 CR3: 000000000660f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __perf_event_output kernel/events/core.c:7382 [inline]
 perf_event_output_forward+0xdb/0x1b0 kernel/events/core.c:7402
 __perf_event_overflow+0x1c8/0x350 kernel/events/core.c:9058
 perf_swevent_hrtimer+0x3fd/0x560 kernel/events/core.c:10461
 __run_hrtimer kernel/time/hrtimer.c:1583 [inline]
 __hrtimer_run_queues+0x3d7/0xa50 kernel/time/hrtimer.c:1647
 hrtimer_interrupt+0x39a/0x8b0 kernel/time/hrtimer.c:1709
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1083 [inline]
 __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1100
 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:91 [inline]
 sysvec_apic_timer_interrupt+0xba/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:neigh_destroy+0x83/0x510 net/core/neighbour.c:840
Code: 3c 29 00 48 89 45 b8 74 0d 48 8b 7d b8 e8 e5 38 e0 fd 48 8b 45 b8 bb 18 02 00 00 48 03 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 <74> 08 48 89 df e8 c3 38 e0 fd 48 8b 03 65 48 ff 40 08 49 8d 9f 97
RSP: 0018:ffffc900000074f8 EFLAGS: 00000246
RAX: 1ffffffff0da8027 RBX: ffffffff86d40138 RCX: 1ffff110259f0081
RDX: 0000000000000502 RSI: 0000000000000001 RDI: ffff88812cf80568
RBP: ffffc90000007568 R08: ffffffff83c87d51 R09: ffffed10259f0087
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88812cf80400
R13: dffffc0000000000 R14: ffff88812cf80400 R15: ffff88812cf80400
 neigh_release include/net/neighbour.h:427 [inline]
 neigh_cleanup_and_release+0x73/0x1b0 net/core/neighbour.c:104
 neigh_del net/core/neighbour.c:198 [inline]
 neigh_remove_one+0x36b/0x3d0 net/core/neighbour.c:219
 neigh_forced_gc net/core/neighbour.c:252 [inline]
 neigh_alloc net/core/neighbour.c:430 [inline]
 ___neigh_create+0x484/0x1a10 net/core/neighbour.c:592
 __neigh_create+0x32/0x40 net/core/neighbour.c:680
 ip6_finish_output2+0x957/0x1850 net/ipv6/ip6_output.c:142
 __ip6_finish_output+0x5ec/0x780 net/ipv6/ip6_output.c:216
 ip6_finish_output+0x34/0x1e0 net/ipv6/ip6_output.c:226
 NF_HOOK_COND include/linux/netfilter.h:288 [inline]
 ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:249
 dst_output include/net/dst.h:437 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ndisc_send_skb+0x6e9/0xc00 net/ipv6/ndisc.c:509
 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:703
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3963
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1450
 expire_timers kernel/time/timer.c:1495 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1789
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1802
 __do_softirq+0x268/0x5bb kernel/softirq.c:309
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0x60/0x80 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:405 [inline]
 __irq_exit_rcu+0x128/0x150 kernel/softirq.c:435
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:447
 sysvec_apic_timer_interrupt+0xbf/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:schedule_debug kernel/sched/core.c:4553 [inline]
RIP: 0010:__schedule+0x12d/0x1330 kernel/sched/core.c:4698
Code: 74 08 48 89 df e8 b3 ab f7 fc 48 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 9a ab f7 fc 48 81 3b 9d 6e ac 57 <0f> 85 c0 0d 00 00 65 8b 05 12 dd 51 7b 25 ff ff ff 7f 83 f8 01 0f
RSP: 0018:ffffc900015f72a0 EFLAGS: 00000246
RAX: 1ffff920002be000 RBX: ffffc900015f0000 RCX: 1ffff920002bee60
RDX: 1ffff920002bee60 RSI: ffffffff85601e20 RDI: ffffffff85601de0
RBP: ffffc900015f7388 R08: dffffc0000000000 R09: ffffed1023b2f279
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff8881f7000000 R15: ffff88811d9793c0
 preempt_schedule_common+0x9b/0xf0 kernel/sched/core.c:4963
 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:4988
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:39
 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock+0x60/0x70 kernel/locking/spinlock.c:183
 spin_unlock include/linux/spinlock.h:394 [inline]
 zap_pte_range mm/memory.c:1375 [inline]
 zap_pmd_range mm/memory.c:1435 [inline]
 zap_pud_range mm/memory.c:1464 [inline]
 zap_p4d_range mm/memory.c:1485 [inline]
 unmap_page_range+0x1c54/0x23b0 mm/memory.c:1506
 unmap_single_vma mm/memory.c:1551 [inline]
 unmap_vmas+0x37f/0x4f0 mm/memory.c:1583
 exit_mmap+0x2f2/0x5c0 mm/mmap.c:3355
 __mmput+0x95/0x2d0 kernel/fork.c:1153
 mmput+0x59/0x170 kernel/fork.c:1176
 exit_mm kernel/exit.c:537 [inline]
 do_exit+0xbda/0x2a50 kernel/exit.c:848
 do_group_exit+0x141/0x310 kernel/exit.c:983
 get_signal+0x10a0/0x1410 kernel/signal.c:2782
 arch_do_signal_or_restart+0xbd/0x17c0 arch/x86/kernel/signal.c:805
 handle_signal_work kernel/entry/common.c:145 [inline]
 exit_to_user_mode_loop+0x9b/0xd0 kernel/entry/common.c:169
 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline]
 irqentry_exit_to_user_mode+0x4e/0x80 kernel/entry/common.c:287
 irqentry_exit+0x12/0x60 kernel/entry/common.c:375
 sysvec_apic_timer_interrupt+0xcb/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0033:0x7f8db1da9f19
Code: Unable to access opcode bytes at RIP 0x7f8db1da9eef.
RSP: 002b:00007f8db102b0f8 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 00007f8db1f39f68 RCX: 00007f8db1da9f19
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f8db1f39f6c
RBP: 00007f8db1f39f60 R08: 00007ffd06dcd0b0 R09: 00007f8db102b6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8db1f39f6c
R13: 000000000000000b R14: 00007ffd06d23d00 R15: 00007ffd06d23de8