[ 396.152532] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 396.152608] IP: [<ffffffffc0c957ee>] lnet_net_cmd+0x42e/0xc30 [lnet]
[ 396.152725] PGD 8000000076c7c067 PUD 76fd5067 PMD 0
[ 396.152768] Oops: 0000 [#1] SMP
[ 396.152807] Modules linked in: ksocklnd(OE) lnet(OE) libcfs(OE) rdma_ucm(OE) ib_ucm(OE) rdma_cm(OE) iw_cm(OE) ib_ipoib(OE) ib_cm(OE) ib_umad(OE) mlx5_fpga_tools(OE) mlx5_ib(OE) ib_uverbs(OE) mlx5_core(OE) mlxfw(OE) bridge stp llc bonding ip_set nfnetlink sunrpc snd_hda_codec_generic iosf_mbi crc32_pclmul snd_hda_intel ghash_clmulni_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq snd_seq_device ppdev aesni_intel snd_pcm lrw gf128mul glue_helper ablk_helper cryptd sg pcspkr snd_timer joydev virtio_balloon snd soundcore i2c_piix4 parport_pc parport knem(OE) xfs libcrc32c virtio_net virtio_console virtio_blk net_failover failover sr_mod cdrom ata_generic pata_acpi 8139too mlx4_ib(OE) crct10dif_pclmul crct10dif_common crc32c_intel mlx4_en(OE) ib_core(OE) ptp pps_core serio_raw qxl drm_kms_helper syscopyarea
[ 396.153546] sysfillrect sysimgblt fb_sys_fops ttm drm 8139cp mii ata_piix mlx4_core(OE) devlink libata mlx_compat(OE) floppy virtio_pci virtio_ring virtio drm_panel_orientation_quirks dm_mirror dm_region_hash dm_log dm_mod [last unloaded: ip_tables]
[ 396.153754] CPU: 0 PID: 2394 Comm: lnetctl Kdump: loaded Tainted: G OE ------------ 3.10.0-1160.25.1.el7_lustre.x86_64 #1
[ 396.153830] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[ 396.153886] task: ffff9a6977210000 ti: ffff9a69740dc000 task.ti: ffff9a69740dc000
[ 396.153933] RIP: 0010:[<ffffffffc0c957ee>] [<ffffffffc0c957ee>] lnet_net_cmd+0x42e/0xc30 [lnet]
[ 396.154011] RSP: 0018:ffff9a69740df5d0 EFLAGS: 00010286
[ 396.154047] RAX: 00000000ffffffff RBX: ffff9a696b9e8710 RCX: 0000000000000000
[ 396.154096] RDX: 0000000000000005 RSI: ffff9a69740df640 RDI: ffff9a69771bd2c8
[ 396.154172] RBP: ffff9a69740df9c8 R08: 000000000000003a R09: ffff9a696b9e8710
[ 396.154247] R10: 0000000000000006 R11: 0000000000000000 R12: ffff9a69740df640
[ 396.154321] R13: ffff9a69740bdc00 R14: ffff9a69740dfa18 R15: ffff9a6977258640
[ 396.154397] FS: 00007fc625135740(0000) GS:ffff9a697fc00000(0000) knlGS:0000000000000000
[ 396.154477] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 396.154557] CR2: 0000000000000000 CR3: 00000000772ce000 CR4: 00000000001406f0
[ 396.154668] Call Trace:
[ 396.154743] [<ffffffff99e95ea8>] genl_family_rcv_msg+0x208/0x430
[ 396.154819] [<ffffffff99e9082f>] ? __netlink_sendskb+0x5f/0x180
[ 396.154892] [<ffffffff99b07d5c>] ? security_sock_rcv_skb+0x1c/0x20
[ 396.154965] [<ffffffff99e9612b>] genl_rcv_msg+0x5b/0xc0
[ 396.155031] [<ffffffff99e960d0>] ? genl_family_rcv_msg+0x430/0x430
[ 396.155102] [<ffffffff99e9411b>] netlink_rcv_skb+0xab/0xc0
[ 396.155170] [<ffffffff99e94658>] genl_rcv+0x28/0x40
[ 396.155233] [<ffffffff99e93aa0>] netlink_unicast+0x170/0x210
[ 396.156316] [<ffffffff99e93e48>] netlink_sendmsg+0x308/0x420
[ 396.157019] [<ffffffff99e363a6>] sock_sendmsg+0xb6/0xf0
[ 396.157779] [<ffffffffc06d43f4>] ? xfs_iunlock+0x114/0x120 [xfs]
[ 396.158477] [<ffffffff99e37269>] ___sys_sendmsg+0x3e9/0x400
[ 396.159180] [<ffffffff999be20b>] ? unlock_page+0x2b/0x30
[ 396.159929] [<ffffffff999f5e80>] ? handle_mm_fault+0xa20/0xfb0
[ 396.160714] [<ffffffff99f90678>] ? __do_page_fault+0x238/0x500
[ 396.161416] [<ffffffff99e38921>] __sys_sendmsg+0x51/0x90
[ 396.162125] [<ffffffff99e38972>] SyS_sendmsg+0x12/0x20
[ 396.162860] [<ffffffff99f95f92>] system_call_fastpath+0x25/0x2a
[ 396.163597] Code: e9 89 c1 4c 89 e6 c1 e9 10 a9 80 80 00 00 0f 44 c1 48 8d 4a 02 48 0f 44 d1 00 c0 48 83 da 03 4c 29 e2 e8 66 ab ef d8 85 c0 74 4a <4c> 8b 2c 25 00 00 00 00 49 39 dd 75 a3 44 8b a5 28 fc ff ff 8b
[ 396.165199] RIP [<ffffffffc0c957ee>] lnet_net_cmd+0x42e/0xc30 [lnet]
[ 396.165938] RSP <ffff9a69740df5d0>
[ 396.166658] CR2: 0000000000000000