watchdog: BUG: soft lockup - CPU#0 stuck for 112s! [syz.1.2666:11819]
Modules linked in:
CPU: 0 PID: 11819 Comm: syz.1.2666 Not tainted 6.1.90-syzkaller-00003-gbe8ff39d2e99 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:_compound_head include/linux/page-flags.h:262 [inline]
RIP: 0010:virt_to_folio include/linux/mm.h:1155 [inline]
RIP: 0010:virt_to_slab mm/slab.h:175 [inline]
RIP: 0010:____kasan_slab_free+0x15f/0x180 mm/kasan/common.c:219
Code: 89 fe e8 54 32 00 00 eb 12 4c 89 ff 4c 89 ee ba 02 00 00 00 e8 c2 05 00 00 b0 01 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <48> ff ca e9 21 ff ff ff 4c 89 ff 4c 89 ee ba 01 00 00 00 eb d5 66
RSP: 0018:ffffc90000007248 EFLAGS: 00000202
RAX: ffffea0000000000 RBX: ffff888113c2f000 RCX: 0000000000000001
RDX: ffffea00044f0a01 RSI: 00000000044f0bc0 RDI: ffff888100043080
RBP: ffffc90000007278 R08: 0000000000000000 R09: ffffc900000071e8
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffffff81ad016a R14: ffff888100043080 R15: ffff888113c2f000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5d38a125d4 CR3: 0000000006e0f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:249
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1745 [inline]
 slab_free_freelist_hook mm/slub.c:1771 [inline]
 slab_free mm/slub.c:3684 [inline]
 __kmem_cache_free+0x218/0x3b0 mm/slub.c:3697
 kfree+0x7a/0xf0 mm/slab_common.c:1009
 skb_free_head net/core/skbuff.c:762 [inline]
 skb_release_data+0x616/0x840 net/core/skbuff.c:791
 skb_release_all net/core/skbuff.c:856 [inline]
 __kfree_skb net/core/skbuff.c:870 [inline]
 consume_skb+0xac/0x250 net/core/skbuff.c:1035
 netlink_broadcast+0x103c/0x1160 net/netlink/af_netlink.c:1524
 nlmsg_multicast include/net/netlink.h:1071 [inline]
 nlmsg_notify+0xfb/0x1c0 net/netlink/af_netlink.c:2561
 rtnl_notify+0x9c/0xd0 net/core/rtnetlink.c:767
 __neigh_notify+0xcc/0x130 net/core/neighbour.c:3515
 neigh_cleanup_and_release+0x2c/0x1b0 net/core/neighbour.c:101
 neigh_del net/core/neighbour.c:225 [inline]
 neigh_remove_one+0x4d5/0x560 net/core/neighbour.c:246
 neigh_forced_gc net/core/neighbour.c:279 [inline]
 neigh_alloc net/core/neighbour.c:485 [inline]
 ___neigh_create+0x447/0x1db0 net/core/neighbour.c:648
 __neigh_create+0x32/0x40 net/core/neighbour.c:737
 ip6_finish_output2+0x9d0/0x1840 net/ipv6/ip6_output.c:125
 __ip6_finish_output net/ipv6/ip6_output.c:201 [inline]
 ip6_finish_output+0x50f/0xa60 net/ipv6/ip6_output.c:212
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:233
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x7cf/0xdc0 net/ipv6/ndisc.c:509
 ndisc_send_rs+0x47d/0x5f0 net/ipv6/ndisc.c:719
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3984
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
 expire_timers kernel/time/timer.c:1555 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1826
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
 __do_softirq+0x1d8/0x661 kernel/softirq.c:617
 invoke_softirq kernel/softirq.c:472 [inline]
 __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:700
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:712
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:7056
Code: 4c 89 e7 e8 60 26 9f 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 e5 31 fc fb bf 01 00 00 00 <e8> a9 e4 ff ff fa bf 01 00 00 00 e8 be e6 31 fc 65 48 8b 1d 56 d3
RSP: 0018:ffffc900017c6f60 EFLAGS: 00000246
RAX: 1ffff11021f0ce01 RBX: 1ffff920002f8df0 RCX: ffffffff851f9900
RDX: 1ffff11021f0ccad RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc900017c6ff8 R08: ffffffff87969000 R09: ffffffff87969008
R10: ffffffff87969018 R11: ffffffff87969010 R12: ffffc900017c6f80
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920002f8dec
 raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:396
 irqentry_exit+0x30/0x40 kernel/entry/common.c:439
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:need_resched include/linux/sched.h:2255 [inline]
RIP: 0010:preempt_schedule_common+0x15/0xf0 kernel/sched/core.c:6921
Code: 5b 41 5c 41 5e 41 5f 5d c3 e8 07 00 00 00 eb cc e8 60 68 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 3f d6 e4 7a 65 8b
RSP: 0018:ffffc900017c70f8 EFLAGS: 00000246
RAX: 1ffff11021f0cca8 RBX: ffff88810f866540 RCX: ffffffff851d981e
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88810f866540
RBP: ffffc900017c7110 R08: dffffc0000000000 R09: ffffed1021f0cca9
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920002f8e28
R13: dffffc0000000000 R14: ffffffff851d9759 R15: dffffc0000000000
 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6937
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
 rt_mutex_wake_up_q kernel/locking/rtmutex.c:528 [inline]
 rt_mutex_postunlock kernel/locking/rtmutex_api.c:486 [inline]
 rt_mutex_futex_unlock+0x170/0x1f0 kernel/locking/rtmutex_api.c:204
 rcu_preempt_deferred_qs_irqrestore+0x73d/0x9e0 kernel/rcu/tree_plugin.h:571
 rcu_read_unlock_special+0xdb/0x4e0 kernel/rcu/tree_plugin.h:681
 __rcu_read_unlock+0x7e/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:832 [inline]
 page_ext_put+0x1c/0x30 mm/page_ext.c:187
 __reset_page_owner+0x175/0x190 mm/page_owner.c:176
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1498 [inline]
 free_pcp_prepare mm/page_alloc.c:1572 [inline]
 free_unref_page_prepare+0x83d/0x850 mm/page_alloc.c:3498
 free_unref_page+0xb2/0x5c0 mm/page_alloc.c:3594
 free_the_page mm/page_alloc.c:798 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5803
 __vunmap+0x9f3/0xb60 mm/vmalloc.c:2728
 __vfree mm/vmalloc.c:2776 [inline]
 vfree+0x5c/0x80 mm/vmalloc.c:2807
 kcov_put kernel/kcov.c:428 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:524
 __fput+0x3ab/0x870 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x24d/0x2e0 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xbd5/0x2b80 kernel/exit.c:875
 do_group_exit+0x21a/0x2d0 kernel/exit.c:1025
 get_signal+0x169d/0x1820 kernel/signal.c:2880
 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:316
 irqentry_exit+0x12/0x40 kernel/entry/common.c:419
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0033:0x7f2fb37779f9
Code: Unable to access opcode bytes at 0x7f2fb37779cf.
RSP: 002b:00007f2fb461e038 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f2fb3905f80 RCX: 00007f2fb37779f9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000007
RBP: 00007f2fb37e58ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f2fb3905f80 R15: 00007ffd546515d8
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 12132 Comm: syz.2.2705 Not tainted 6.1.90-syzkaller-00003-gbe8ff39d2e99 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:__perf_event_header__init_id+0x2dd/0x530 kernel/events/core.c:6937
Code: 19 20 21 00 ff 13 49 89 c4 48 8b 45 d0 48 8d 58 58 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 96 20 21 00 4c 89 23 <4c> 89 ee 48 81 e6 40 00 01 00 31 ff e8 42 06 da ff 4c 89 e8 48 25
RSP: 0018:ffffc900001afc28 EFLAGS: 00000046
RAX: ffffffff819ba053 RBX: 0000000000000000 RCX: ffff88811a00bcc0
RDX: 0000000000010302 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001afc70 R08: ffffffff819ba045 R09: ffffc900001afdc0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900001afe26
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888116c50960
FS:  00007f56fdf596c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ee1eff8 CR3: 000000012e654000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 perf_prepare_sample+0x196/0x1ca0 kernel/events/core.c:7447
 __perf_event_output kernel/events/core.c:7641 [inline]
 perf_event_output_forward+0xdb/0x1b0 kernel/events/core.c:7661
 __perf_event_overflow+0x458/0x630 kernel/events/core.c:9409
 perf_swevent_hrtimer+0x38e/0x4f0 kernel/events/core.c:10817
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x41a/0xad0 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x40c/0xaa0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x44/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:rep_nop arch/x86/include/asm/vdso/processor.h:13 [inline]
RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline]
RIP: 0010:queued_write_lock_slowpath+0x15a/0x547 kernel/locking/qrwlock.c:85
Code: 00 01 00 00 bb ff 00 00 00 43 0f b6 44 3d 00 84 c0 74 38 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 2b 4c 89 f7 e8 78 2a 9d fc eb 21 <f3> 90 43 0f b6 44 3d 00 84 c0 74 15 44 89 f1 80 e1 07 80 c1 03 38
RSP: 0018:ffffc900001b04a0 EFLAGS: 00000206
RAX: 00000000000001ff RBX: 00000000000000ff RCX: ffffffff851f95cc
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff875ff4b0
RBP: ffffc900001b0550 R08: dffffc0000000000 R09: fffffbfff0ebfe97
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200003609e
R13: 1ffffffff0ebfe96 R14: ffffffff875ff4b0 R15: dffffc0000000000
 queued_write_lock include/asm-generic/qrwlock.h:101 [inline]
 __raw_write_lock_bh include/linux/rwlock_api_smp.h:203 [inline]
 _raw_write_lock_bh+0x10a/0x170 kernel/locking/spinlock.c:334
 ___neigh_create+0xd32/0x1db0 net/core/neighbour.c:682
 __neigh_create+0x32/0x40 net/core/neighbour.c:737
 ip6_finish_output2+0x9d0/0x1840 net/ipv6/ip6_output.c:125
 __ip6_finish_output net/ipv6/ip6_output.c:201 [inline]
 ip6_finish_output+0x50f/0xa60 net/ipv6/ip6_output.c:212
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:233
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x7cf/0xdc0 net/ipv6/ndisc.c:509
 ndisc_send_rs+0x47d/0x5f0 net/ipv6/ndisc.c:719
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3984
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
 expire_timers kernel/time/timer.c:1555 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1826
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
 __do_softirq+0x1d8/0x661 kernel/softirq.c:617
 invoke_softirq kernel/softirq.c:472 [inline]
 __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:700
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:712
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:7056
Code: 4c 89 e7 e8 60 26 9f 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 e5 31 fc fb bf 01 00 00 00 <e8> a9 e4 ff ff fa bf 01 00 00 00 e8 be e6 31 fc 65 48 8b 1d 56 d3
RSP: 0018:ffffc90000ef7880 EFLAGS: 00000246
RAX: 1ffff110234018f1 RBX: 1ffff920001def14 RCX: ffffffff851f9900
RDX: 1ffffffff0f2d208 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000ef7918 R08: ffffffff87969040 R09: ffffffff87969048
R10: ffffffff87969058 R11: ffffffff87969050 R12: ffffc90000ef78a0
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920001def10
 raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:396
 irqentry_exit+0x30/0x40 kernel/entry/common.c:439
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:up_write+0x1/0x2a0 kernel/locking/rwsem.c:1705
Code: 35 2d 64 00 49 8b 3e 48 89 de 31 d2 e8 78 7e 88 02 65 ff 0d 59 da a9 7e 0f 85 3e fe ff ff e8 32 f6 a7 ff e9 34 fe ff ff 90 55 <48> 89 e5 41 57 41 56 41 54 53 49 89 ff 49 bc 00 00 00 00 00 fc ff
RSP: 0018:ffffc90000ef7a18 EFLAGS: 00000283
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc90005905000 RSI: 000000000000001e RDI: ffff888100769420
RBP: ffffc90000ef7a50 R08: dffffc0000000000 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888100769420
R13: ffff88811a1c4a80 R14: 0000000008e53b02 R15: 0000000000000004
 ioctl_fioasync fs/ioctl.c:379 [inline]
 do_vfs_ioctl+0x122a/0x29a0 fs/ioctl.c:791
 __do_sys_ioctl fs/ioctl.c:868 [inline]
 __se_sys_ioctl+0x99/0x190 fs/ioctl.c:856
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856
 x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f56fd1779f9
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:00007f56fdf59038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f56fd305f80 RCX: 00007f56fd1779f9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000004
RBP: 00007f56fd1e58ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f56fd305f80 R15: 00007ffc101501e8
 </TASK>