[ANNOUNCE] WireGuard Snapshot `0.0.20191205` Available

[Jordan Glover]

On Friday, December 6, 2019 5:35 PM, Jason A. Donenfeld <Jason at zx2c4.com> wrote:

> Looks like an arch problem or a libnftnl problem. I've made a minimal
> reproducer:
>
> printf 'filter\nCOMMIT\nraw\nCOMMIT\n*mangle\nCOMMIT\n' | sudo
> iptables-nft-restore -n
>
> I filed a bug report on Arch: https://bugs.archlinux.org/task/64755
> You can follow up with them.

I tried to compile myself iptables 1.8.4 which is latest upstream version
and have good and bad news:

The good one is your minimal reproducer no longer causes segfault.

The bad one is wg-quick still does:

wg-quick[2325]: [#] iptables-restore -n
audit[2326]: ANOM_ABEND auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=2326 comm="iptables-restor" exe="/usr/bin/xtables-nft-multi" sig=11 res=1
wg-quick[2325]: /usr/bin/wg-quick: line 29:  2326 Segmentation fault      (core dumped) "$@"
kernel: show_signal_msg: 40 callbacks suppressed
kernel: iptables-restor[2326]: segfault at 0 ip 000069bb4df13cc9 sp 0000716fcc5b9b30 error 4 in libnftnl.so.11.2.0[69bb4df11000+18000]
kernel: Code: 15 5c 20 02 00 48 85 c0 74 07 48 89 00 48 89 40 08 48 83 c4 08 c3 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 48 83 ec 08 <48> 8b 3f 48 8b 1f 48 39 fd 74 2f 0f 1f 40 00 48 8b 47 08 48 89 43

Maybe upstream found and fixed some regression but still missed
the other one.

Jordan