[Bug 1141] New: trace aborts using pkttype on ingress

bugzilla-daemon at netfilter.org bugzilla-daemon at netfilter.org
Sun Apr 2 16:51:18 CEST 2017 

https://bugzilla.netfilter.org/show_bug.cgi?id=1141

            Bug ID: 1141
           Summary: trace aborts using pkttype on ingress
           Product: nftables
           Version: unspecified
          Hardware: x86_64
                OS: other
            Status: NEW
          Severity: major
          Priority: P5
         Component: kernel
          Assignee: pablo at netfilter.org
          Reporter: netfilter at d9c.eu

Using the following minimal ruleset I am getting my journal spammed with
traces:

table netdev ethernet {
  chain etherfilter {
    type filter hook ingress device eth0 priority 0; policy accept;
    pkttype broadcast counter drop
  }
}

Unfortunately i cannot really tell what is triggering this, it happens at
random when just having a shell open and of course there is the usual internet
background noise.

Two sample traces (on Archlinux, kernel 4.10.5, nftables 0.7):

Apr 02 14:20:59 helium kernel: ------------[ cut here ]------------
Apr 02 14:20:59 helium kernel: WARNING: CPU: 0 PID: 0 at
net/netfilter/nft_meta.c:163 nft_meta_get_eval+0x40e/0x450 [nft_meta]
Apr 02 14:20:59 helium kernel: Modules linked in: nft_counter nft_meta
nft_set_hash nft_set_rbtree nf_tables_netdev nf_tables nfnetlink cirrus ttm
ppdev drm_kms_helper joydev evdev input_leds mousedev drm pcspkr led_class
parport_pc psmouse parport acpi_cpufreq syscopyarea pvpanic mac_hid intel_agp
i2c_piix4 sysfillrect sysimgblt fb_sys_fops intel_gtt tpm_tis tpm_tis_core tpm
button sch_fq_codel ip_tables x_tables ext4 crc16 jbd2 fscrypto mbcache sr_mod
cdrom sd_mod ata_generic pata_acpi hid_generic usbhid hid virtio_net
virtio_scsi virtio_balloon serio_raw atkbd libps2 ata_piix uhci_hcd ehci_pci
ehci_hcd virtio_pci virtio_ring i8042 usbcore virtio serio floppy usb_common
libata scsi_mod lz4 lz4_compress
Apr 02 14:20:59 helium kernel: CPU: 0 PID: 0 Comm: swapper/0 Tainted: G       
W       4.10.5-1-ARCH #1
Apr 02 14:20:59 helium kernel: Hardware name: QEMU Standard PC (i440FX + PIIX,
1996), BIOS debian/1.7.5-1-0-g506b58d-dirty-20140812_231322-gandalf 04/01/2014
Apr 02 14:20:59 helium kernel: Call Trace:
Apr 02 14:20:59 helium kernel:  <IRQ>
Apr 02 14:20:59 helium kernel:  dump_stack+0x63/0x83
Apr 02 14:20:59 helium kernel:  __warn+0xcb/0xf0
Apr 02 14:20:59 helium kernel:  warn_slowpath_null+0x1d/0x20
Apr 02 14:20:59 helium kernel:  nft_meta_get_eval+0x40e/0x450 [nft_meta]
Apr 02 14:20:59 helium kernel:  nft_do_chain+0x102/0x4e0 [nf_tables]
Apr 02 14:20:59 helium kernel:  ? sch_direct_xmit+0x79/0x1b0
Apr 02 14:20:59 helium kernel:  ? __dev_queue_xmit+0x227/0x630
Apr 02 14:20:59 helium kernel:  ? ip6_finish_output2+0x229/0x510
Apr 02 14:20:59 helium kernel:  ? find_next_bit+0x18/0x20
Apr 02 14:20:59 helium kernel:  ? pcpu_alloc+0x2ce/0x630
Apr 02 14:20:59 helium kernel:  ? ip6_finish_output+0xab/0x1c0
Apr 02 14:20:59 helium kernel:  nft_do_chain_netdev+0x66/0x250
[nf_tables_netdev]
Apr 02 14:20:59 helium kernel:  nf_hook_slow+0x2a/0xb0
Apr 02 14:20:59 helium kernel:  __netif_receive_skb_core+0x820/0xa80
Apr 02 14:20:59 helium kernel:  __netif_receive_skb+0x18/0x60
Apr 02 14:20:59 helium kernel:  process_backlog+0x9f/0x160
Apr 02 14:20:59 helium kernel:  net_rx_action+0x242/0x3d0
Apr 02 14:20:59 helium kernel:  __do_softirq+0x104/0x2e1
Apr 02 14:20:59 helium kernel:  irq_exit+0xb6/0xc0
Apr 02 14:20:59 helium kernel:  smp_apic_timer_interrupt+0x3d/0x50
Apr 02 14:20:59 helium kernel:  apic_timer_interrupt+0x89/0x90
Apr 02 14:20:59 helium kernel: RIP: 0010:native_safe_halt+0x6/0x10
Apr 02 14:20:59 helium kernel: RSP: 0018:ffffffff81a03dd8 EFLAGS: 00000246
ORIG_RAX: ffffffffffffff10
Apr 02 14:20:59 helium kernel: RAX: 0000000000000000 RBX: ffffffff81a10500 RCX:
0000000000000000
Apr 02 14:20:59 helium kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI:
0000000000000000
Apr 02 14:20:59 helium kernel: RBP: ffffffff81a03dd8 R08: 0100000000000000 R09:
ffff8800076e0a00
Apr 02 14:20:59 helium kernel: R10: 0000000000000000 R11: 0000000000000000 R12:
0000000000000000
Apr 02 14:20:59 helium kernel: R13: ffffffff81a10500 R14: 0000000000000000 R15:
0000000000000000
Apr 02 14:20:59 helium kernel:  </IRQ>
Apr 02 14:20:59 helium kernel:  default_idle+0x20/0x110
Apr 02 14:20:59 helium kernel:  arch_cpu_idle+0xf/0x20
Apr 02 14:20:59 helium kernel:  default_idle_call+0x23/0x30
Apr 02 14:20:59 helium kernel:  do_idle+0x16f/0x200
Apr 02 14:20:59 helium kernel:  cpu_startup_entry+0x71/0x80
Apr 02 14:20:59 helium kernel:  rest_init+0x84/0x90
Apr 02 14:20:59 helium kernel:  start_kernel+0x44d/0x46e
Apr 02 14:20:59 helium kernel:  ? early_idt_handler_array+0x120/0x120
Apr 02 14:20:59 helium kernel:  x86_64_start_reservations+0x2a/0x2c
Apr 02 14:20:59 helium kernel:  x86_64_start_kernel+0x14c/0x16f
Apr 02 14:20:59 helium kernel:  start_cpu+0x14/0x14
Apr 02 14:20:59 helium kernel: ---[ end trace ae57fe03dbfe51a6 ]---

Apr 02 14:23:03 helium kernel: ------------[ cut here ]------------
Apr 02 14:23:03 helium kernel: WARNING: CPU: 0 PID: 6 at
net/netfilter/nft_meta.c:163 nft_meta_get_eval+0x40e/0x450 [nft_meta]
Apr 02 14:23:03 helium kernel: Modules linked in: nft_counter nft_meta
nft_set_hash nft_set_rbtree nf_tables_netdev nf_tables nfnetlink cirrus ttm
ppdev drm_kms_helper joydev evdev input_leds mousedev drm pcspkr led_class
parport_pc psmouse parport acpi_cpufreq syscopyarea pvpanic mac_hid intel_agp
i2c_piix4 sysfillrect sysimgblt fb_sys_fops intel_gtt tpm_tis tpm_tis_core tpm
button sch_fq_codel ip_tables x_tables ext4 crc16 jbd2 fscrypto mbcache sr_mod
cdrom sd_mod ata_generic pata_acpi hid_generic usbhid hid virtio_net
virtio_scsi virtio_balloon serio_raw atkbd libps2 ata_piix uhci_hcd ehci_pci
ehci_hcd virtio_pci virtio_ring i8042 usbcore virtio serio floppy usb_common
libata scsi_mod lz4 lz4_compress
Apr 02 14:23:03 helium kernel: CPU: 0 PID: 6 Comm: ksoftirqd/0 Tainted: G      
 W       4.10.5-1-ARCH #1
Apr 02 14:23:03 helium kernel: Hardware name: QEMU Standard PC (i440FX + PIIX,
1996), BIOS debian/1.7.5-1-0-g506b58d-dirty-20140812_231322-gandalf 04/01/2014
Apr 02 14:23:03 helium kernel: Call Trace:
Apr 02 14:23:03 helium kernel:  dump_stack+0x63/0x83
Apr 02 14:23:03 helium kernel:  __warn+0xcb/0xf0
Apr 02 14:23:03 helium kernel:  warn_slowpath_null+0x1d/0x20
Apr 02 14:23:03 helium kernel:  nft_meta_get_eval+0x40e/0x450 [nft_meta]
Apr 02 14:23:03 helium kernel:  nft_do_chain+0x102/0x4e0 [nf_tables]
Apr 02 14:23:03 helium kernel:  ? skb_free_head+0x21/0x30
Apr 02 14:23:03 helium kernel:  ? skb_release_data+0x101/0x110
Apr 02 14:23:03 helium kernel:  ? kfree_skbmem+0x59/0x60
Apr 02 14:23:03 helium kernel:  ? __kfree_skb+0x1a/0x20
Apr 02 14:23:03 helium kernel:  ? tcp_rcv_established+0x27b/0x6f0
Apr 02 14:23:03 helium kernel:  ? sk_filter_trim_cap+0xb7/0x260
Apr 02 14:23:03 helium kernel:  ? nft_do_chain_netdev+0x66/0x250
[nf_tables_netdev]
Apr 02 14:23:03 helium kernel:  ? cpuacct_charge+0x86/0xa0
Apr 02 14:23:03 helium kernel:  ? skb_free_head+0x28/0x30
Apr 02 14:23:03 helium kernel:  ? skb_release_data+0x101/0x110
Apr 02 14:23:03 helium kernel:  ? nf_hook_slow+0x75/0xb0
Apr 02 14:23:03 helium kernel:  ? kfree_skbmem+0x59/0x60
Apr 02 14:23:03 helium kernel:  ? nf_hook_slow+0x75/0xb0
Apr 02 14:23:03 helium kernel:  nft_do_chain_netdev+0x66/0x250
[nf_tables_netdev]
Apr 02 14:23:03 helium kernel:  nf_hook_slow+0x2a/0xb0
Apr 02 14:23:03 helium kernel:  __netif_receive_skb_core+0x820/0xa80
Apr 02 14:23:03 helium kernel:  ? cpuacct_charge+0x86/0xa0
Apr 02 14:23:03 helium kernel:  __netif_receive_skb+0x18/0x60
Apr 02 14:23:03 helium kernel:  process_backlog+0x9f/0x160
Apr 02 14:23:03 helium kernel:  net_rx_action+0x242/0x3d0
Apr 02 14:23:03 helium kernel:  __do_softirq+0x104/0x2e1
Apr 02 14:23:03 helium kernel:  run_ksoftirqd+0x29/0x40
Apr 02 14:23:03 helium kernel:  smpboot_thread_fn+0x100/0x1e0
Apr 02 14:23:03 helium kernel:  kthread+0x101/0x140
Apr 02 14:23:03 helium kernel:  ? sort_range+0x30/0x30
Apr 02 14:23:03 helium kernel:  ? kthread_create_on_node+0x60/0x60
Apr 02 14:23:03 helium kernel:  ret_from_fork+0x2c/0x40
Apr 02 14:23:03 helium kernel: ---[ end trace ae57fe03dbfe51aa ]---

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