BUG: soft lockup in addrconf_rs_timer
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syzbot
Sep 8, 2019, 10:09:07 AM9/8/19
to syzkaller...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 414510bc Linux 4.14.142
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=15d0b2d1600000
kernel config: https://syzkaller.appspot.com/x/.config?x=9aa0b2ccd827f416
dashboard link: https://syzkaller.appspot.com/bug?extid=a792443943a5ff69dbd7
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+a79244...@syzkaller.appspotmail.com
ISOFS: Unable to identify CD-ROM format.
watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [swapper/1:0]
Modules linked in:
irq event stamp: 6797879
hardirqs last enabled at (6797878): [<ffffffff86200979>]
restore_regs_and_return_to_kernel+0x0/0x27
hardirqs last disabled at (6797879): [<ffffffff86201b01>]
apic_timer_interrupt+0x91/0xa0 arch/x86/entry/entry_64.S:792
softirqs last enabled at (6769376): [<ffffffff81389aac>]
_local_bh_enable+0x1c/0x30 kernel/softirq.c:159
softirqs last disabled at (6769377): [<ffffffff8138bd60>] invoke_softirq
kernel/softirq.c:368 [inline]
softirqs last disabled at (6769377): [<ffffffff8138bd60>]
irq_exit+0x160/0x1b0 kernel/softirq.c:409
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.14.142 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
task: ffff8880a9d1c340 task.stack: ffff8880a9d28000
RIP: 0010:cpu_relax arch/x86/include/asm/processor.h:661 [inline]
RIP: 0010:virt_spin_lock arch/x86/include/asm/qspinlock.h:87 [inline]
RIP: 0010:native_queued_spin_lock_slowpath+0x302/0x750
kernel/locking/qspinlock.c:313
RSP: 0018:ffff8880aef076d8 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000001 RBX: ffff88808d6049e0 RCX: dffffc0000000000
RDX: 1ffffffff0ee2a98 RSI: 0000000000000001 RDI: ffff88808d6049e0
RBP: ffff8880aef07708 R08: 0000000000000001 R09: ffff8880aef07498
R10: ffff8880aef07468 R11: ffff8880a9d1c340 R12: 0000000000000001
R13: 0000000000000003 R14: ffffed1011ac093c R15: ffff88808d604a28
FS: 0000000000000000(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000007126b4 CR3: 000000009f8e9000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:669 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:52 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:90 [inline]
do_raw_spin_lock+0x190/0x230 kernel/locking/spinlock_debug.c:113
__raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_lock+0x37/0x40 kernel/locking/spinlock.c:152
spin_lock include/linux/spinlock.h:317 [inline]
__dev_xmit_skb net/core/dev.c:3204 [inline]
__dev_queue_xmit+0x11c0/0x25e0 net/core/dev.c:3493
dev_queue_xmit+0x18/0x20 net/core/dev.c:3558
neigh_hh_output include/net/neighbour.h:490 [inline]
neigh_output include/net/neighbour.h:498 [inline]
ip6_finish_output2+0x10bd/0x21b0 net/ipv6/ip6_output.c:120
ip6_finish_output+0x4f4/0xb50 net/ipv6/ip6_output.c:154
NF_HOOK_COND include/linux/netfilter.h:239 [inline]
ip6_output+0x20f/0x6d0 net/ipv6/ip6_output.c:171
dst_output include/net/dst.h:462 [inline]
NF_HOOK include/linux/netfilter.h:250 [inline]
ndisc_send_skb+0xb56/0x11e0 net/ipv6/ndisc.c:483
ndisc_send_rs+0x129/0x680 net/ipv6/ndisc.c:677
addrconf_rs_timer+0x289/0x5a0 net/ipv6/addrconf.c:3757
call_timer_fn+0x161/0x670 kernel/time/timer.c:1279
expire_timers kernel/time/timer.c:1318 [inline]
__run_timers kernel/time/timer.c:1634 [inline]
__run_timers kernel/time/timer.c:1602 [inline]
run_timer_softirq+0x5b4/0x1570 kernel/time/timer.c:1647
__do_softirq+0x244/0x9a0 kernel/softirq.c:288
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x160/0x1b0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
</IRQ>
RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61
RSP: 0018:ffff8880a9d2fe70 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0ee2a84 RBX: ffff8880a9d1c340 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880a9d1cbbc
RBP: ffff8880a9d2fe98 R08: 1ffffffff104a601 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87715410
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880a9d1c340
arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:557
default_idle_call+0x36/0x90 kernel/sched/idle.c:98
cpuidle_idle_call kernel/sched/idle.c:156 [inline]
do_idle+0x262/0x3d0 kernel/sched/idle.c:246
cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:351
start_secondary+0x346/0x4b0 arch/x86/kernel/smpboot.c:272
secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240
Code: 4c 89 e2 48 c1 ea 03 80 3c 02 00 0f 85 6b 03 00 00 49 8b 04 24 48 85
c0 0f 84 54 01 00 00 48 89 c1 0f 18 08 e9 4b 01 00 00 f3 90 <e9> 37 fd ff
ff 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7 Comm: ksoftirqd/0 Not tainted 4.14.142 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
task: ffff8880a9ce21c0 task.stack: ffff8880a9ce8000
RIP: 0010:__list_add include/linux/list.h:63 [inline]
RIP: 0010:list_add_tail include/linux/list.h:93 [inline]
RIP: 0010:list_move_tail include/linux/list.h:183 [inline]
RIP: 0010:hhf_dequeue+0x635/0xa60 net/sched/sch_hhf.c:438
RSP: 0018:ffff8880a9ceec10 EFLAGS: 00000246
RAX: 1ffff11011ac097b RBX: ffff88808d604b38 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffff88808d604bd0 RDI: ffff88808d604bd8
RBP: ffff8880a9ceec60 R08: 0000000000000000 R09: ffff8880a9ce2b50
R10: ffff8880a9ce2b30 R11: ffff8880a9ce21c0 R12: dffffc0000000000
R13: ffff88808d604940 R14: ffff88808d604bd0 R15: ffff88808d604bc0
FS: 0000000000000000(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000016680b0 CR3: 000000009f8e9000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
dequeue_skb net/sched/sch_generic.c:148 [inline]
qdisc_restart net/sched/sch_generic.c:241 [inline]
__qdisc_run+0x2b8/0xe00 net/sched/sch_generic.c:257
__dev_xmit_skb net/core/dev.c:3235 [inline]
__dev_queue_xmit+0x1571/0x25e0 net/core/dev.c:3493
dev_queue_xmit+0x18/0x20 net/core/dev.c:3558
br_dev_queue_push_xmit+0x367/0x530 net/bridge/br_forward.c:55
br_nf_dev_queue_xmit+0x307/0x1440 net/bridge/br_netfilter_hooks.c:776
NF_HOOK include/linux/netfilter.h:250 [inline]
NF_HOOK include/linux/netfilter.h:244 [inline]
br_nf_post_routing+0xb80/0xf00 net/bridge/br_netfilter_hooks.c:822
nf_hook_entry_hookfn include/linux/netfilter.h:108 [inline]
nf_hook_slow+0xaf/0x1b0 net/netfilter/core.c:467
nf_hook include/linux/netfilter.h:205 [inline]
NF_HOOK include/linux/netfilter.h:248 [inline]
br_forward_finish+0x1b7/0x320 net/bridge/br_forward.c:67
br_nf_hook_thresh+0x25b/0x2e0 net/bridge/br_netfilter_hooks.c:1005
br_nf_forward_finish+0x264/0x640 net/bridge/br_netfilter_hooks.c:550
NF_HOOK include/linux/netfilter.h:250 [inline]
NF_HOOK include/linux/netfilter.h:244 [inline]
br_nf_forward_ip net/bridge/br_netfilter_hooks.c:617 [inline]
br_nf_forward_ip+0x5fc/0x11d0 net/bridge/br_netfilter_hooks.c:561
nf_hook_entry_hookfn include/linux/netfilter.h:108 [inline]
nf_hook_slow+0xaf/0x1b0 net/netfilter/core.c:467
nf_hook include/linux/netfilter.h:205 [inline]
NF_HOOK include/linux/netfilter.h:248 [inline]
__br_forward+0x312/0x9c0 net/bridge/br_forward.c:111
deliver_clone+0x61/0xc0 net/bridge/br_forward.c:127
br_flood+0x43c/0x530 net/bridge/br_forward.c:222
br_handle_frame_finish+0xaf0/0x1830 net/bridge/br_input.c:210
br_nf_hook_thresh+0x25b/0x2e0 net/bridge/br_netfilter_hooks.c:1005
br_nf_pre_routing_finish_ipv6+0x621/0xc50
net/bridge/br_netfilter_ipv6.c:210
NF_HOOK include/linux/netfilter.h:250 [inline]
br_nf_pre_routing_ipv6+0x417/0x790 net/bridge/br_netfilter_ipv6.c:240
br_nf_pre_routing+0xdce/0x12c7 net/bridge/br_netfilter_hooks.c:491
nf_hook_entry_hookfn include/linux/netfilter.h:108 [inline]
nf_hook_slow+0xaf/0x1b0 net/netfilter/core.c:467
nf_hook include/linux/netfilter.h:205 [inline]
NF_HOOK include/linux/netfilter.h:248 [inline]
br_handle_frame+0x80c/0x1110 net/bridge/br_input.c:348
__netif_receive_skb_core+0x789/0x2ca0 net/core/dev.c:4431
__netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4515
process_backlog+0x21f/0x730 net/core/dev.c:5197
napi_poll net/core/dev.c:5598 [inline]
net_rx_action+0x490/0xf80 net/core/dev.c:5664
__do_softirq+0x244/0x9a0 kernel/softirq.c:288
run_ksoftirqd kernel/softirq.c:670 [inline]
run_ksoftirqd+0x8c/0x1b0 kernel/softirq.c:662
smpboot_thread_fn+0x5f4/0x960 kernel/smpboot.c:164
kthread+0x319/0x430 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: 00 00 48 89 df 48 8b 55 d0 4c 89 f6 e8 f5 d9 e8 fd 84 c0 0f 84 28 fa
ff ff e8 18 50 6d fc 48 8b 45 b8 48 c1 e8 03 42 80 3c 20 00 <0f> 85 6f 03
00 00 48 89 d8 49 89 9d 98 02 00 00 48 c1 e8 03 42
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following crash on:
HEAD commit: 414510bc Linux 4.14.142
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=15d0b2d1600000
kernel config: https://syzkaller.appspot.com/x/.config?x=9aa0b2ccd827f416
dashboard link: https://syzkaller.appspot.com/bug?extid=a792443943a5ff69dbd7
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+a79244...@syzkaller.appspotmail.com
ISOFS: Unable to identify CD-ROM format.
watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [swapper/1:0]
Modules linked in:
irq event stamp: 6797879
hardirqs last enabled at (6797878): [<ffffffff86200979>]
restore_regs_and_return_to_kernel+0x0/0x27
hardirqs last disabled at (6797879): [<ffffffff86201b01>]
apic_timer_interrupt+0x91/0xa0 arch/x86/entry/entry_64.S:792
softirqs last enabled at (6769376): [<ffffffff81389aac>]
_local_bh_enable+0x1c/0x30 kernel/softirq.c:159
softirqs last disabled at (6769377): [<ffffffff8138bd60>] invoke_softirq
kernel/softirq.c:368 [inline]
softirqs last disabled at (6769377): [<ffffffff8138bd60>]
irq_exit+0x160/0x1b0 kernel/softirq.c:409
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.14.142 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
task: ffff8880a9d1c340 task.stack: ffff8880a9d28000
RIP: 0010:cpu_relax arch/x86/include/asm/processor.h:661 [inline]
RIP: 0010:virt_spin_lock arch/x86/include/asm/qspinlock.h:87 [inline]
RIP: 0010:native_queued_spin_lock_slowpath+0x302/0x750
kernel/locking/qspinlock.c:313
RSP: 0018:ffff8880aef076d8 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000001 RBX: ffff88808d6049e0 RCX: dffffc0000000000
RDX: 1ffffffff0ee2a98 RSI: 0000000000000001 RDI: ffff88808d6049e0
RBP: ffff8880aef07708 R08: 0000000000000001 R09: ffff8880aef07498
R10: ffff8880aef07468 R11: ffff8880a9d1c340 R12: 0000000000000001
R13: 0000000000000003 R14: ffffed1011ac093c R15: ffff88808d604a28
FS: 0000000000000000(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000007126b4 CR3: 000000009f8e9000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:669 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:52 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:90 [inline]
do_raw_spin_lock+0x190/0x230 kernel/locking/spinlock_debug.c:113
__raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_lock+0x37/0x40 kernel/locking/spinlock.c:152
spin_lock include/linux/spinlock.h:317 [inline]
__dev_xmit_skb net/core/dev.c:3204 [inline]
__dev_queue_xmit+0x11c0/0x25e0 net/core/dev.c:3493
dev_queue_xmit+0x18/0x20 net/core/dev.c:3558
neigh_hh_output include/net/neighbour.h:490 [inline]
neigh_output include/net/neighbour.h:498 [inline]
ip6_finish_output2+0x10bd/0x21b0 net/ipv6/ip6_output.c:120
ip6_finish_output+0x4f4/0xb50 net/ipv6/ip6_output.c:154
NF_HOOK_COND include/linux/netfilter.h:239 [inline]
ip6_output+0x20f/0x6d0 net/ipv6/ip6_output.c:171
dst_output include/net/dst.h:462 [inline]
NF_HOOK include/linux/netfilter.h:250 [inline]
ndisc_send_skb+0xb56/0x11e0 net/ipv6/ndisc.c:483
ndisc_send_rs+0x129/0x680 net/ipv6/ndisc.c:677
addrconf_rs_timer+0x289/0x5a0 net/ipv6/addrconf.c:3757
call_timer_fn+0x161/0x670 kernel/time/timer.c:1279
expire_timers kernel/time/timer.c:1318 [inline]
__run_timers kernel/time/timer.c:1634 [inline]
__run_timers kernel/time/timer.c:1602 [inline]
run_timer_softirq+0x5b4/0x1570 kernel/time/timer.c:1647
__do_softirq+0x244/0x9a0 kernel/softirq.c:288
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x160/0x1b0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
</IRQ>
RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61
RSP: 0018:ffff8880a9d2fe70 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0ee2a84 RBX: ffff8880a9d1c340 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880a9d1cbbc
RBP: ffff8880a9d2fe98 R08: 1ffffffff104a601 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87715410
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880a9d1c340
arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:557
default_idle_call+0x36/0x90 kernel/sched/idle.c:98
cpuidle_idle_call kernel/sched/idle.c:156 [inline]
do_idle+0x262/0x3d0 kernel/sched/idle.c:246
cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:351
start_secondary+0x346/0x4b0 arch/x86/kernel/smpboot.c:272
secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240
Code: 4c 89 e2 48 c1 ea 03 80 3c 02 00 0f 85 6b 03 00 00 49 8b 04 24 48 85
c0 0f 84 54 01 00 00 48 89 c1 0f 18 08 e9 4b 01 00 00 f3 90 <e9> 37 fd ff
ff 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7 Comm: ksoftirqd/0 Not tainted 4.14.142 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
task: ffff8880a9ce21c0 task.stack: ffff8880a9ce8000
RIP: 0010:__list_add include/linux/list.h:63 [inline]
RIP: 0010:list_add_tail include/linux/list.h:93 [inline]
RIP: 0010:list_move_tail include/linux/list.h:183 [inline]
RIP: 0010:hhf_dequeue+0x635/0xa60 net/sched/sch_hhf.c:438
RSP: 0018:ffff8880a9ceec10 EFLAGS: 00000246
RAX: 1ffff11011ac097b RBX: ffff88808d604b38 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffff88808d604bd0 RDI: ffff88808d604bd8
RBP: ffff8880a9ceec60 R08: 0000000000000000 R09: ffff8880a9ce2b50
R10: ffff8880a9ce2b30 R11: ffff8880a9ce21c0 R12: dffffc0000000000
R13: ffff88808d604940 R14: ffff88808d604bd0 R15: ffff88808d604bc0
FS: 0000000000000000(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000016680b0 CR3: 000000009f8e9000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
dequeue_skb net/sched/sch_generic.c:148 [inline]
qdisc_restart net/sched/sch_generic.c:241 [inline]
__qdisc_run+0x2b8/0xe00 net/sched/sch_generic.c:257
__dev_xmit_skb net/core/dev.c:3235 [inline]
__dev_queue_xmit+0x1571/0x25e0 net/core/dev.c:3493
dev_queue_xmit+0x18/0x20 net/core/dev.c:3558
br_dev_queue_push_xmit+0x367/0x530 net/bridge/br_forward.c:55
br_nf_dev_queue_xmit+0x307/0x1440 net/bridge/br_netfilter_hooks.c:776
NF_HOOK include/linux/netfilter.h:250 [inline]
NF_HOOK include/linux/netfilter.h:244 [inline]
br_nf_post_routing+0xb80/0xf00 net/bridge/br_netfilter_hooks.c:822
nf_hook_entry_hookfn include/linux/netfilter.h:108 [inline]
nf_hook_slow+0xaf/0x1b0 net/netfilter/core.c:467
nf_hook include/linux/netfilter.h:205 [inline]
NF_HOOK include/linux/netfilter.h:248 [inline]
br_forward_finish+0x1b7/0x320 net/bridge/br_forward.c:67
br_nf_hook_thresh+0x25b/0x2e0 net/bridge/br_netfilter_hooks.c:1005
br_nf_forward_finish+0x264/0x640 net/bridge/br_netfilter_hooks.c:550
NF_HOOK include/linux/netfilter.h:250 [inline]
NF_HOOK include/linux/netfilter.h:244 [inline]
br_nf_forward_ip net/bridge/br_netfilter_hooks.c:617 [inline]
br_nf_forward_ip+0x5fc/0x11d0 net/bridge/br_netfilter_hooks.c:561
nf_hook_entry_hookfn include/linux/netfilter.h:108 [inline]
nf_hook_slow+0xaf/0x1b0 net/netfilter/core.c:467
nf_hook include/linux/netfilter.h:205 [inline]
NF_HOOK include/linux/netfilter.h:248 [inline]
__br_forward+0x312/0x9c0 net/bridge/br_forward.c:111
deliver_clone+0x61/0xc0 net/bridge/br_forward.c:127
br_flood+0x43c/0x530 net/bridge/br_forward.c:222
br_handle_frame_finish+0xaf0/0x1830 net/bridge/br_input.c:210
br_nf_hook_thresh+0x25b/0x2e0 net/bridge/br_netfilter_hooks.c:1005
br_nf_pre_routing_finish_ipv6+0x621/0xc50
net/bridge/br_netfilter_ipv6.c:210
NF_HOOK include/linux/netfilter.h:250 [inline]
br_nf_pre_routing_ipv6+0x417/0x790 net/bridge/br_netfilter_ipv6.c:240
br_nf_pre_routing+0xdce/0x12c7 net/bridge/br_netfilter_hooks.c:491
nf_hook_entry_hookfn include/linux/netfilter.h:108 [inline]
nf_hook_slow+0xaf/0x1b0 net/netfilter/core.c:467
nf_hook include/linux/netfilter.h:205 [inline]
NF_HOOK include/linux/netfilter.h:248 [inline]
br_handle_frame+0x80c/0x1110 net/bridge/br_input.c:348
__netif_receive_skb_core+0x789/0x2ca0 net/core/dev.c:4431
__netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4515
process_backlog+0x21f/0x730 net/core/dev.c:5197
napi_poll net/core/dev.c:5598 [inline]
net_rx_action+0x490/0xf80 net/core/dev.c:5664
__do_softirq+0x244/0x9a0 kernel/softirq.c:288
run_ksoftirqd kernel/softirq.c:670 [inline]
run_ksoftirqd+0x8c/0x1b0 kernel/softirq.c:662
smpboot_thread_fn+0x5f4/0x960 kernel/smpboot.c:164
kthread+0x319/0x430 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: 00 00 48 89 df 48 8b 55 d0 4c 89 f6 e8 f5 d9 e8 fd 84 c0 0f 84 28 fa
ff ff e8 18 50 6d fc 48 8b 45 b8 48 c1 e8 03 42 80 3c 20 00 <0f> 85 6f 03
00 00 48 89 d8 49 89 9d 98 02 00 00 48 c1 e8 03 42
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot
Jan 7, 2020, 11:14:12 AM1/7/20
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following crash on:
HEAD commit: 84f5ad46 Linux 4.14.162
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1374f3c1e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=67bcc84091a71c98
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=166d0876e00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+a79244...@syzkaller.appspotmail.com
device veth0_vlan entered promiscuous mode
IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
device veth1_vlan entered promiscuous mode
watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor143:7538]
Modules linked in:
irq event stamp: 28785015
hardirqs last enabled at (28785014): [<ffffffff86800979>]
restore_regs_and_return_to_kernel+0x0/0x27
hardirqs last disabled at (28785015): [<ffffffff86801b01>]
apic_timer_interrupt+0x91/0xa0 arch/x86/entry/entry_64.S:792
softirqs last enabled at (112): [<ffffffff86a00645>]
__do_softirq+0x645/0x9a0 kernel/softirq.c:314
softirqs last disabled at (333): [<ffffffff81392c40>] invoke_softirq
kernel/softirq.c:368 [inline]
softirqs last disabled at (333): [<ffffffff81392c40>] irq_exit+0x160/0x1b0
kernel/softirq.c:409
CPU: 1 PID: 7538 Comm: syz-executor143 Not tainted 4.14.162-syzkaller #0
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:get_frame_pointer arch/x86/include/asm/stacktrace.h:62 [inline]
RIP: 0010:__unwind_start+0x2a0/0x3d0 arch/x86/kernel/unwind_frame.c:403
RSP: 0000:ffff8880aed070d0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000000 RBX: ffff8880aed071a0 RCX: 0000000000000000
RDX: 0000000000000005 RSI: 0000000000000000 RDI: ffff8880aed07155
RBP: ffff8880aed07110 R08: ffff8880aed07148 R09: ffff8880aed07120
R10: ffffed1015da0e2f R11: ffff8880aed0717f R12: 0000000000000000
R13: ffff888079d9e340 R14: ffff888079d9e300 R15: ffff8880aed07120
FS: 00007ff3e1e18700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
__save_stack_trace+0x4a/0xd0 arch/x86/kernel/stacktrace.c:43
save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
save_stack+0x45/0xd0 mm/kasan/kasan.c:447
set_track mm/kasan/kasan.c:459 [inline]
kasan_kmalloc mm/kasan/kasan.c:551 [inline]
kasan_kmalloc+0xce/0xf0 mm/kasan/kasan.c:529
kasan_slab_alloc+0xf/0x20 mm/kasan/kasan.c:489
kmem_cache_alloc+0x12e/0x780 mm/slab.c:3552
kmem_cache_zalloc include/linux/slab.h:651 [inline]
fill_pool lib/debugobjects.c:110 [inline]
__debug_object_init+0x5b8/0x8e0 lib/debugobjects.c:341
debug_object_init lib/debugobjects.c:393 [inline]
debug_object_activate+0x274/0x450 lib/debugobjects.c:474
debug_rcu_head_queue kernel/rcu/rcu.h:152 [inline]
__call_rcu.constprop.0+0x35/0x820 kernel/rcu/tree.c:3050
call_rcu+0x12/0x20 kernel/rcu/tree_plugin.h:730
dst_release+0x5c/0x80 net/core/dst.c:188
refdst_drop include/net/dst.h:286 [inline]
skb_dst_drop include/net/dst.h:298 [inline]
__dev_queue_xmit+0x17e1/0x25e0 net/core/dev.c:3484
dev_queue_xmit+0x18/0x20 net/core/dev.c:3558
neigh_resolve_output net/core/neighbour.c:1369 [inline]
neigh_resolve_output+0x4f6/0x8a0 net/core/neighbour.c:1349
neigh_output include/net/neighbour.h:500 [inline]
ip6_finish_output2+0x9ab/0x21b0 net/ipv6/ip6_output.c:120
__run_timers kernel/time/timer.c:1604 [inline]
run_timer_softirq+0x5b7/0x1520 kernel/time/timer.c:1649
RSP: 002b:00007ff3e1e17db8 EFLAGS: 00000217 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000000 RBX: 00000000006e59e8 RCX: 0000000000449389
RDX: 0000000000042000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 00000000006e59e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e59ec
R13: 00007ffe73a188cf R14: 00007ff3e1e189c0 R15: 20c49ba5e353f7cf
Code: 48 89 f8 48 c1 e8 03 42 80 3c 30 00 0f 85 c9 00 00 00 49 39 5f 38 0f
82 5d ff ff ff 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <65> 48 8b 04
25 40 ee 01 00 49 39 c5 74 32 49 8d bd d8 13 00 00
RIP: 0010:__lock_acquire+0x6f/0x4620 kernel/locking/lockdep.c:3344
RSP: 0018:ffff8880aec07860 EFLAGS: 00000082
RAX: ffffed1015d80f20 RBX: 0000000000000000 RCX: 0000000000000002
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff87f88960
RBP: ffff8880aec07a10 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87f88960
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
FS: 00007ff3e1df7700(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:242 [inline]
rcu_read_lock include/linux/rcupdate.h:629 [inline]
kill_fasync fs/fcntl.c:1010 [inline]
kill_fasync+0x73/0x3d0 fs/fcntl.c:1004
perf_event_wakeup+0x215/0x360 kernel/events/core.c:5558
perf_pending_event+0xb0/0xe0 kernel/events/core.c:5582
irq_work_run_list+0x105/0x190 kernel/irq_work.c:156
irq_work_run+0x52/0xb0 kernel/irq_work.c:171
smp_irq_work_interrupt+0xa8/0x4e0 arch/x86/kernel/irq_work.c:21
irq_work_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:823
RIP: 0010:ipv6_get_lladdr+0x12/0x3e0 net/ipv6/addrconf.c:1775
RSP: 0018:ffff8880aec07c70 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff09
RAX: 0000000000000100 RBX: 1ffff11015d80f9a RCX: 0000000000000000
RDX: 0000000000000040 RSI: ffff8880aec07cf0 RDI: ffff888089bcc040
RBP: ffff8880aec07ca0 R08: ffff8880a108c400 R09: 0000000000000003
R10: 0000000000000000 R11: ffff8880a108c400 R12: ffff8880a83d7240
R13: ffff8880a83d73c0 R14: 0000000000000040 R15: ffff888089bcc040
addrconf_rs_timer+0x268/0x5a0 net/ipv6/addrconf.c:3756
__run_timers kernel/time/timer.c:1604 [inline]
run_timer_softirq+0x5b7/0x1520 kernel/time/timer.c:1649
[inline]
RIP: 0010:lock_acquire+0x1ea/0x430 kernel/locking/lockdep.c:3997
RSP: 0018:ffff8880912af920 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0fe2d29 RBX: ffff8880a108c400 RCX: 0000000064827b74
RDX: dffffc0000000000 RSI: ffff8880a108cca8 RDI: 0000000000000282
RBP: ffff8880912af968 R08: 00000000000079c4 R09: ffffffff895ab860
R10: ffff8880a108cca8 R11: ffff8880a108c400 R12: ffff888079ff7450
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
__might_fault mm/memory.c:4584 [inline]
__might_fault+0x143/0x1d0 mm/memory.c:4569
fetch_robust_entry kernel/futex.c:3685 [inline]
exit_robust_list kernel/futex.c:3716 [inline]
futex_cleanup+0x20b/0xc60 kernel/futex.c:3768
futex_exit_release+0x1d/0x70 kernel/futex.c:3869
exit_mm_release+0x1b/0x30 kernel/fork.c:1171
exit_mm kernel/exit.c:500 [inline]
do_exit+0x38c/0x2c80 kernel/exit.c:841
do_group_exit+0x111/0x330 kernel/exit.c:951
get_signal+0x381/0x1cd0 kernel/signal.c:2413
do_signal+0x86/0x19a0 arch/x86/kernel/signal.c:814
exit_to_usermode_loop+0x15c/0x220 arch/x86/entry/common.c:160
prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
do_syscall_64+0x4bc/0x640 arch/x86/entry/common.c:297
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x449389
RSP: 002b:00007ff3e1df6db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00000000006e59f8 RCX: 0000000000449389
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006e59f8
RBP: 00000000006e59f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e59fc
R13: 00007ffe73a188cf R14: 00007ff3e1df79c0 R15: 20c49ba5e353f7cf
Code: b7 ad 87 48 c1 e8 03 48 89 84 24 98 00 00 00 48 01 d0 48 c7 84 24 b0
00 00 00 90 41 48 81 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 <c7> 40 08 00
00 00 f2 c7 40 0c f2 f2 f2 f2 c7 40 18 f3 f3 f3 f3
HEAD commit: 84f5ad46 Linux 4.14.162
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1374f3c1e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=67bcc84091a71c98
dashboard link: https://syzkaller.appspot.com/bug?extid=a792443943a5ff69dbd7
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=149b9459e00000
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=166d0876e00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+a79244...@syzkaller.appspotmail.com
IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
device veth1_vlan entered promiscuous mode
watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor143:7538]
Modules linked in:
irq event stamp: 28785015
hardirqs last enabled at (28785014): [<ffffffff86800979>]
restore_regs_and_return_to_kernel+0x0/0x27
hardirqs last disabled at (28785015): [<ffffffff86801b01>]
apic_timer_interrupt+0x91/0xa0 arch/x86/entry/entry_64.S:792
softirqs last enabled at (112): [<ffffffff86a00645>]
__do_softirq+0x645/0x9a0 kernel/softirq.c:314
softirqs last disabled at (333): [<ffffffff81392c40>] invoke_softirq
kernel/softirq.c:368 [inline]
softirqs last disabled at (333): [<ffffffff81392c40>] irq_exit+0x160/0x1b0
kernel/softirq.c:409
CPU: 1 PID: 7538 Comm: syz-executor143 Not tainted 4.14.162-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
task: ffff888079d9e340 task.stack: ffff88808a9f8000
Google 01/01/2011
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:get_frame_pointer arch/x86/include/asm/stacktrace.h:62 [inline]
RIP: 0010:__unwind_start+0x2a0/0x3d0 arch/x86/kernel/unwind_frame.c:403
RSP: 0000:ffff8880aed070d0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000000 RBX: ffff8880aed071a0 RCX: 0000000000000000
RDX: 0000000000000005 RSI: 0000000000000000 RDI: ffff8880aed07155
RBP: ffff8880aed07110 R08: ffff8880aed07148 R09: ffff8880aed07120
R10: ffffed1015da0e2f R11: ffff8880aed0717f R12: 0000000000000000
R13: ffff888079d9e340 R14: ffff888079d9e300 R15: ffff8880aed07120
FS: 00007ff3e1e18700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe73a18970 CR3: 0000000079828000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
unwind_start arch/x86/include/asm/unwind.h:60 [inline]
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
__save_stack_trace+0x4a/0xd0 arch/x86/kernel/stacktrace.c:43
save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
save_stack+0x45/0xd0 mm/kasan/kasan.c:447
set_track mm/kasan/kasan.c:459 [inline]
kasan_kmalloc mm/kasan/kasan.c:551 [inline]
kasan_kmalloc+0xce/0xf0 mm/kasan/kasan.c:529
kasan_slab_alloc+0xf/0x20 mm/kasan/kasan.c:489
kmem_cache_alloc+0x12e/0x780 mm/slab.c:3552
kmem_cache_zalloc include/linux/slab.h:651 [inline]
fill_pool lib/debugobjects.c:110 [inline]
__debug_object_init+0x5b8/0x8e0 lib/debugobjects.c:341
debug_object_init lib/debugobjects.c:393 [inline]
debug_object_activate+0x274/0x450 lib/debugobjects.c:474
debug_rcu_head_queue kernel/rcu/rcu.h:152 [inline]
__call_rcu.constprop.0+0x35/0x820 kernel/rcu/tree.c:3050
call_rcu+0x12/0x20 kernel/rcu/tree_plugin.h:730
dst_release+0x5c/0x80 net/core/dst.c:188
refdst_drop include/net/dst.h:286 [inline]
skb_dst_drop include/net/dst.h:298 [inline]
__dev_queue_xmit+0x17e1/0x25e0 net/core/dev.c:3484
dev_queue_xmit+0x18/0x20 net/core/dev.c:3558
neigh_resolve_output net/core/neighbour.c:1369 [inline]
neigh_resolve_output+0x4f6/0x8a0 net/core/neighbour.c:1349
neigh_output include/net/neighbour.h:500 [inline]
ip6_finish_output2+0x9ab/0x21b0 net/ipv6/ip6_output.c:120
ip6_finish_output+0x4f4/0xb50 net/ipv6/ip6_output.c:154
NF_HOOK_COND include/linux/netfilter.h:239 [inline]
ip6_output+0x20f/0x6d0 net/ipv6/ip6_output.c:171
dst_output include/net/dst.h:462 [inline]
NF_HOOK include/linux/netfilter.h:250 [inline]
ndisc_send_skb+0xb56/0x11e0 net/ipv6/ndisc.c:483
ndisc_send_rs+0x12b/0x670 net/ipv6/ndisc.c:677
NF_HOOK_COND include/linux/netfilter.h:239 [inline]
ip6_output+0x20f/0x6d0 net/ipv6/ip6_output.c:171
dst_output include/net/dst.h:462 [inline]
NF_HOOK include/linux/netfilter.h:250 [inline]
ndisc_send_skb+0xb56/0x11e0 net/ipv6/ndisc.c:483
addrconf_rs_timer+0x289/0x5a0 net/ipv6/addrconf.c:3757
call_timer_fn+0x161/0x670 kernel/time/timer.c:1279
expire_timers kernel/time/timer.c:1318 [inline]
__run_timers kernel/time/timer.c:1636 [inline]
call_timer_fn+0x161/0x670 kernel/time/timer.c:1279
expire_timers kernel/time/timer.c:1318 [inline]
__run_timers kernel/time/timer.c:1604 [inline]
run_timer_softirq+0x5b7/0x1520 kernel/time/timer.c:1649
__do_softirq+0x244/0x9a0 kernel/softirq.c:288
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x160/0x1b0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
</IRQ>
RIP: 0033:0x449395
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x160/0x1b0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
</IRQ>
RSP: 002b:00007ff3e1e17db8 EFLAGS: 00000217 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000000 RBX: 00000000006e59e8 RCX: 0000000000449389
RDX: 0000000000042000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 00000000006e59e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e59ec
R13: 00007ffe73a188cf R14: 00007ff3e1e189c0 R15: 20c49ba5e353f7cf
Code: 48 89 f8 48 c1 e8 03 42 80 3c 30 00 0f 85 c9 00 00 00 49 39 5f 38 0f
82 5d ff ff ff 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <65> 48 8b 04
25 40 ee 01 00 49 39 c5 74 32 49 8d bd d8 13 00 00
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7546 Comm: syz-executor143 Not tainted 4.14.162-syzkaller #0
NMI backtrace for cpu 0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
task: ffff8880a108c400 task.stack: ffff8880912a8000
Google 01/01/2011
RIP: 0010:__lock_acquire+0x6f/0x4620 kernel/locking/lockdep.c:3344
RSP: 0018:ffff8880aec07860 EFLAGS: 00000082
RAX: ffffed1015d80f20 RBX: 0000000000000000 RCX: 0000000000000002
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff87f88960
RBP: ffff8880aec07a10 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87f88960
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
FS: 00007ff3e1df7700(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000006df448 CR3: 0000000085199000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
rcu_lock_acquire include/linux/rcupdate.h:242 [inline]
rcu_read_lock include/linux/rcupdate.h:629 [inline]
kill_fasync fs/fcntl.c:1010 [inline]
kill_fasync+0x73/0x3d0 fs/fcntl.c:1004
perf_event_wakeup+0x215/0x360 kernel/events/core.c:5558
perf_pending_event+0xb0/0xe0 kernel/events/core.c:5582
irq_work_run_list+0x105/0x190 kernel/irq_work.c:156
irq_work_run+0x52/0xb0 kernel/irq_work.c:171
smp_irq_work_interrupt+0xa8/0x4e0 arch/x86/kernel/irq_work.c:21
irq_work_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:823
RIP: 0010:ipv6_get_lladdr+0x12/0x3e0 net/ipv6/addrconf.c:1775
RSP: 0018:ffff8880aec07c70 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff09
RAX: 0000000000000100 RBX: 1ffff11015d80f9a RCX: 0000000000000000
RDX: 0000000000000040 RSI: ffff8880aec07cf0 RDI: ffff888089bcc040
RBP: ffff8880aec07ca0 R08: ffff8880a108c400 R09: 0000000000000003
R10: 0000000000000000 R11: ffff8880a108c400 R12: ffff8880a83d7240
R13: ffff8880a83d73c0 R14: 0000000000000040 R15: ffff888089bcc040
addrconf_rs_timer+0x268/0x5a0 net/ipv6/addrconf.c:3756
call_timer_fn+0x161/0x670 kernel/time/timer.c:1279
expire_timers kernel/time/timer.c:1318 [inline]
__run_timers kernel/time/timer.c:1636 [inline]
expire_timers kernel/time/timer.c:1318 [inline]
__run_timers kernel/time/timer.c:1604 [inline]
run_timer_softirq+0x5b7/0x1520 kernel/time/timer.c:1649
__do_softirq+0x244/0x9a0 kernel/softirq.c:288
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x160/0x1b0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
</IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x160/0x1b0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
</IRQ>
[inline]
RIP: 0010:lock_acquire+0x1ea/0x430 kernel/locking/lockdep.c:3997
RSP: 0018:ffff8880912af920 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0fe2d29 RBX: ffff8880a108c400 RCX: 0000000064827b74
RDX: dffffc0000000000 RSI: ffff8880a108cca8 RDI: 0000000000000282
RBP: ffff8880912af968 R08: 00000000000079c4 R09: ffffffff895ab860
R10: ffff8880a108cca8 R11: ffff8880a108c400 R12: ffff888079ff7450
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
__might_fault mm/memory.c:4584 [inline]
__might_fault+0x143/0x1d0 mm/memory.c:4569
fetch_robust_entry kernel/futex.c:3685 [inline]
exit_robust_list kernel/futex.c:3716 [inline]
futex_cleanup+0x20b/0xc60 kernel/futex.c:3768
futex_exit_release+0x1d/0x70 kernel/futex.c:3869
exit_mm_release+0x1b/0x30 kernel/fork.c:1171
exit_mm kernel/exit.c:500 [inline]
do_exit+0x38c/0x2c80 kernel/exit.c:841
do_group_exit+0x111/0x330 kernel/exit.c:951
get_signal+0x381/0x1cd0 kernel/signal.c:2413
do_signal+0x86/0x19a0 arch/x86/kernel/signal.c:814
exit_to_usermode_loop+0x15c/0x220 arch/x86/entry/common.c:160
prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
do_syscall_64+0x4bc/0x640 arch/x86/entry/common.c:297
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x449389
RSP: 002b:00007ff3e1df6db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00000000006e59f8 RCX: 0000000000449389
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006e59f8
RBP: 00000000006e59f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e59fc
R13: 00007ffe73a188cf R14: 00007ff3e1df79c0 R15: 20c49ba5e353f7cf
Code: b7 ad 87 48 c1 e8 03 48 89 84 24 98 00 00 00 48 01 d0 48 c7 84 24 b0
00 00 00 90 41 48 81 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 <c7> 40 08 00
00 00 f2 c7 40 0c f2 f2 f2 f2 c7 40 18 f3 f3 f3 f3
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