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<div style="font-size:10.0pt;font-family:Verdana,Arial"> Hi,<br>
<br>
I'm trying to make WG work on Ubuntu 14.04.5, but got a driver
bug apparently.<br>
<br>
WG was installed this way: <font face="Courier New">sudo
add-apt-repository ppa:wireguard/wireguard && sudo apt
update && sudo apt install wireguard<br>
</font><br>
Then, the following commands were executed (mixed with syslog
output):<br>
<br>
<font face="Courier New">$ lsb_release -a<br>
Distributor ID: Ubuntu<br>
Description: Ubuntu 14.04.5 LTS<br>
Release: 14.04<br>
Codename: trusty<br>
<br>
$ uname -a<br>
Linux l 3.13.0-165-generic #215-Ubuntu SMP Wed Jan 16 11:46:47
UTC 2019 x86_64 x86_64 x86_64 GNU/Linux<br>
<br>
$ apt search wireguard<br>
wireguard/trusty,now 0.0.20190123-wg1~trusty all [installed]<br>
wireguard-dkms/trusty,now 0.0.20190123-wg1~trusty all
[installed,automatic]<br>
wireguard-tools/trusty,now 0.0.20190123-wg1~trusty amd64
[installed,automatic]<br>
<br>
<br>
<br>
$ wg genkey | tee privatekey | wg pubkey > publickey<br>
<br>
$ sudo ip link add dev wg0 type wireguard<br>
<br>
Feb 4 13:20:37 l kernel: [ 248.082139] wireguard: module
verification failed: signature and/or required key missing -
tainting kernel<br>
Feb 4 13:20:37 l kernel: [ 248.082815] wireguard: WireGuard
0.0.20190123 loaded. See <a class="moz-txt-link-abbreviated" href="http://www.wireguard.com">www.wireguard.com</a> for information.<br>
Feb 4 13:20:37 l kernel: [ 248.082816] wireguard: Copyright
(C) 2015-2019 Jason A. Donenfeld <a class="moz-txt-link-rfc2396E" href="mailto:Jason@zx2c4.com"><Jason@zx2c4.com></a>. All
Rights Reserved.<br>
<br>
<br>
$ sudo ip addr add 10.0.0.1/24 dev wg0<br>
$ sudo wg set wg0 listen-port 500 private-key ./privatekey<br>
$ sudo ip link set wg0 up<br>
<br>
Feb 4 13:22:12 l kernel: [ 342.791370] BUG: unable to handle
kernel NULL pointer dereference at 0000000000000018<br>
Feb 4 13:22:12 l kernel: [ 342.791635] IP:
[<ffffffffa036d7ec>] wg_socket_init+0x13c/0x3f0
[wireguard]<br>
Feb 4 13:22:12 l kernel: [ 342.791861] PGD 80000000b2899067
PUD b2a0d067 PMD 0<br>
Feb 4 13:22:12 l kernel: [ 342.792043] Oops: 0000 [#1] SMP<br>
Feb 4 13:22:12 l kernel: [ 342.792162] Modules linked in:
wireguard(OX) ip_tunnel iptable_mangle xt_nat iptable_nat
nf_nat_ipv4 ipt_REJECT xt_tcpmss xt_tcpudp xt_LOG xt_limit
nf_conntrack_ipv4 nf_defrag_ipv4 xt_owner xt_recent xt_set
xt_conntrack iptable_filter ip_tables ip_set_hash_ip ip_set
nfnetlink bridge stp llc intel_rapl e1000e
x86_pkg_temp_thermal intel_powerclamp r8169 mii kvm_intel ptp
gpio_ich ipmi_devintf lpc_ich pps_core joydev shpchp kvm
crct10dif_pclmul ipmi_si crc32_pclmul ghash_clmulni_intel
nf_conntrack_sip nf_conntrack_tftp xt_multiport x_tables
nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack coretemp lp
nls_iso8859_1 parport dm_crypt raid10 raid456
async_raid6_recov async_memcpy async_pq async_xor xor async_tx
raid6_pq raid0 multipath linear raid1 hid_generic aesni_intel
snd_pcsp aes_x86_64 glue_helper snd_pcm lrw snd_page_alloc
gf128mul snd_timer ablk_helper usbhid ahci snd cryptd
soundcore libahci hid wmi mac_hid<br>
Feb 4 13:22:12 l kernel: [ 342.795383] CPU: 6 PID: 3154
Comm: ip Tainted: G OX 3.13.0-165-generic
#215-Ubuntu<br>
Feb 4 13:22:12 l kernel: [ 342.795650] Hardware name: IBM
IBM System x3100 M4<br>
Feb 4 13:22:12 l kernel: [ 342.795957] task:
ffff88021cb0b000 ti: ffff8800af964000 task.ti:
ffff8800af964000<br>
Feb 4 13:22:12 l kernel: [ 342.796192] RIP:
0010:[<ffffffffa036d7ec>] [<ffffffffa036d7ec>]
wg_socket_init+0x13c/0x3f0 [wireguard]<br>
Feb 4 13:22:12 l kernel: [ 342.796497] RSP:
0018:ffff8800af9656e0 EFLAGS: 00010202<br>
Feb 4 13:22:12 l kernel: [ 342.796665] RAX: 0000000000000000
RBX: ffff88021b300880 RCX: 000000007fbae3ff<br>
Feb 4 13:22:12 l kernel: [ 342.796894] RDX: ffff88021b300880
RSI: ffff880221d7f980 RDI: ffffffff81cded00<br>
Feb 4 13:22:12 l kernel: [ 342.797120] RBP: ffff8800af965798
R08: ffff88023fd94690 R09: 0000000000000004<br>
Feb 4 13:22:12 l kernel: [ 342.797344] R10: ffff88023fd94688
R11: ffffc90004e0ca8c R12: 0000000000000065<br>
Feb 4 13:22:12 l kernel: [ 342.797568] R13: 0000000000000000
R14: ffff8800af96573c R15: 00000000000001f4<br>
Feb 4 13:22:12 l kernel: [ 342.797794] FS:
00007f34c4d92740(0000) GS:ffff88023fd80000(0000)
knlGS:0000000000000000<br>
Feb 4 13:22:12 l kernel: [ 342.798050] CS: 0010 DS: 0000
ES: 0000 CR0: 0000000080050033<br>
Feb 4 13:22:12 l kernel: [ 342.798230] CR2: 0000000000000018
CR3: 00000000af87a000 CR4: 0000000000160770<br>
Feb 4 13:22:12 l kernel: [ 342.798455] Stack:<br>
Feb 4 13:22:12 l kernel: [ 342.798520] ffff8800af965750
ffff880221d7f980 0000000000000000 ffff88021b300880<br>
Feb 4 13:22:12 l kernel: [ 342.798784] ffffffff8162bd01
ffffffffa036c340 0000000000000002 0000000000000000<br>
Feb 4 13:22:12 l kernel: [ 342.799046] 0000000000000000
0000000000000000 0000f40100000000 0000000a00000001<br>
Feb 4 13:22:12 l kernel: [ 342.799309] Call Trace:<br>
Feb 4 13:22:12 l kernel: [ 342.806648]
[<ffffffff8162bd01>] ? skb_copy_and_csum_dev+0xb1/0xc0<br>
Feb 4 13:22:12 l kernel: [ 342.814226]
[<ffffffffa036c340>] ? send6+0x340/0x340 [wireguard]<br>
Feb 4 13:22:12 l kernel: [ 342.821781]
[<ffffffffa0367a2a>] wg_open+0x5a/0xe0 [wireguard]<br>
Feb 4 13:22:12 l kernel: [ 342.829201]
[<ffffffff8163f942>] __dev_open+0xc2/0x140<br>
Feb 4 13:22:12 l kernel: [ 342.836477]
[<ffffffff8163fc53>] __dev_change_flags+0xa3/0x180<br>
Feb 4 13:22:12 l kernel: [ 342.843676]
[<ffffffff8163fd59>] dev_change_flags+0x29/0x60<br>
Feb 4 13:22:12 l kernel: [ 342.850884]
[<ffffffff8164f176>] do_setlink+0x2f6/0x9a0<br>
Feb 4 13:22:12 l kernel: [ 342.857911]
[<ffffffff8139c442>] ? nla_parse+0x32/0x120<br>
Feb 4 13:22:12 l kernel: [ 342.864767]
[<ffffffff8164fd1a>] rtnl_newlink+0x3ba/0x620<br>
Feb 4 13:22:12 l kernel: [ 342.871445]
[<ffffffff81161923>] ?
__alloc_pages_nodemask+0x1a3/0xb90<br>
Feb 4 13:22:12 l kernel: [ 342.878020]
[<ffffffff812e5f7e>] ? security_capable+0x1e/0x20<br>
Feb 4 13:22:12 l kernel: [ 342.884415]
[<ffffffff81077e29>] ? ns_capable+0x29/0x50<br>
Feb 4 13:22:12 l kernel: [ 342.890633]
[<ffffffff8164c718>] rtnetlink_rcv_msg+0x98/0x250<br>
Feb 4 13:22:12 l kernel: [ 342.896710]
[<ffffffff811afc88>] ?
__kmalloc_node_track_caller+0x58/0x2b0<br>
Feb 4 13:22:12 l kernel: [ 342.902695]
[<ffffffff8162c98e>] ? __alloc_skb+0x7e/0x2b0<br>
Feb 4 13:22:12 l kernel: [ 342.908496]
[<ffffffff8164c680>] ? rtnetlink_rcv+0x30/0x30<br>
Feb 4 13:22:12 l kernel: [ 342.914122]
[<ffffffff8166b0ab>] netlink_rcv_skb+0xab/0xc0<br>
Feb 4 13:22:12 l kernel: [ 342.919616]
[<ffffffff8164c678>] rtnetlink_rcv+0x28/0x30<br>
Feb 4 13:22:12 l kernel: [ 342.924963]
[<ffffffff8166a7a0>] netlink_unicast+0xe0/0x1b0<br>
Feb 4 13:22:12 l kernel: [ 342.930172]
[<ffffffff8166ab7e>] netlink_sendmsg+0x30e/0x680<br>
Feb 4 13:22:12 l kernel: [ 342.935225]
[<ffffffff81623251>] sock_sendmsg+0x91/0xc0<br>
Feb 4 13:22:12 l kernel: [ 342.940134]
[<ffffffff811bd526>] ?
__mem_cgroup_commit_charge+0x156/0x3d0<br>
Feb 4 13:22:12 l kernel: [ 342.944970]
[<ffffffff81622f2e>] ?
move_addr_to_kernel.part.14+0x1e/0x60<br>
Feb 4 13:22:12 l kernel: [ 342.949771]
[<ffffffff81623d81>] ? move_addr_to_kernel+0x21/0x30<br>
Feb 4 13:22:12 l kernel: [ 342.954457]
[<ffffffff81623659>] ___sys_sendmsg+0x389/0x3a0<br>
Feb 4 13:22:12 l kernel: [ 342.959123]
[<ffffffff81621ecf>] ? sock_destroy_inode+0x2f/0x40<br>
Feb 4 13:22:12 l kernel: [ 342.963784]
[<ffffffff817487d4>] ? __do_page_fault+0x214/0x570<br>
Feb 4 13:22:12 l kernel: [ 342.968464]
[<ffffffff811dffdd>] ? dput+0xad/0x190<br>
Feb 4 13:22:12 l kernel: [ 342.973110]
[<ffffffff811e94e4>] ? mntput+0x24/0x40<br>
Feb 4 13:22:12 l kernel: [ 342.977642]
[<ffffffff811cab81>] ? __fput+0x181/0x260<br>
Feb 4 13:22:12 l kernel: [ 342.982066]
[<ffffffff81624462>] __sys_sendmsg+0x42/0x80<br>
Feb 4 13:22:12 l kernel: [ 342.986430]
[<ffffffff816244b2>] SyS_sendmsg+0x12/0x20<br>
Feb 4 13:22:12 l kernel: [ 342.990694]
[<ffffffff8174d3bc>] system_call_fastpath+0x26/0x2b<br>
Feb 4 13:22:12 l kernel: [ 342.994897] Code: 7f 48 8b 78 20
e8 65 7e 2b e1 48 8b bb 50 02 00 00 48 8b b5 50 ff ff ff 48 8d
95 60 ff ff ff e8 8b dd 01 00 48 8b 05 9c 44 9b e1 <48>
83 78 18 00 0f 84 87 01 00 00 48 8b 95 50 ff ff ff 48 8b bb<br>
Feb 4 13:22:12 l kernel: [ 343.008678] RIP
[<ffffffffa036d7ec>] wg_socket_init+0x13c/0x3f0
[wireguard]<br>
Feb 4 13:22:12 l kernel: [ 343.013245] RSP
<ffff8800af9656e0><br>
Feb 4 13:22:12 l kernel: [ 343.017746] CR2: 0000000000000018<br>
Feb 4 13:22:12 l kernel: [ 343.022234] ---[ end trace
7a6ac50ecd32399e ]---<br>
</font><br>
<br>
Any idea what could be the problem?<br>
<br>
Regards,<br>
Anatoli<br>
</div>
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