[Bug 1702] iptables fails to parse interface wildcard "-i +" correctly

[bugzilla-daemon at netfilter.org]

https://bugzilla.netfilter.org/show_bug.cgi?id=1702

--- Comment #7 from thomas.strangert at emblasoft.com ---
(In reply to Phil Sutter from comment #2)
> I can neither reproduce this with current HEAD nor v1.8.7 tag. Is this a
> downstream issue? I see you're facing the problem with
> iptables-1.8.7-1ubuntu5.1, can you try to reproduce with a vanilla build?
> 
> Also, you could try calling:
> 
> valgrind --leak-check=full iptables -A INPUT -i + -d 192.168.1.10 -j DROP
> 
> It should report garbage data read and give some
> details as to where/why it happens.

I noticed it when I moved to a Ubuntu 22.04 LTS from 20.04 LTS, all using
native/standard distro/downstream builds I suppose.

I have reported the bug to Ubuntu as well, so I hope that they can do the
"flavored" tests. I don't have the servers/setup/bandwidth to go much deeper
that I'm already in at.
Ubuntu bug report:
https://bugs.launchpad.net/ubuntu/+source/iptables/+bug/2033663

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