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<base href="https://bugzilla.netfilter.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - coredump when parsing ip protocol with number > 6"
href="https://bugzilla.netfilter.org/show_bug.cgi?id=1072">1072</a>
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<th>Summary</th>
<td>coredump when parsing ip protocol with number > 6
</td>
</tr>
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<th>Product</th>
<td>nftables
</td>
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<tr>
<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86_64
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
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<th>Priority</th>
<td>P5
</td>
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<th>Component</th>
<td>nft
</td>
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<th>Assignee</th>
<td>pablo@netfilter.org
</td>
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<th>Reporter</th>
<td>frederik.schwan@linux.com
</td>
</tr></table>
<p>
<div>
<pre>My goal: filter GRE (IP proto 47) traffic
This rule gives me a coredump when I try to load it:
ip protocol 47 ip saddr x.x.x.x accept
All numbers lower than 7 seem to work:
ip protocol 6 ip saddr x.x.x.x accept <- works
debug output:
update network layer protocol context:
link layer : inet
network layer : ip <-
transport layer : none
update network layer protocol context:
link layer : inet
network layer : ip <-
transport layer : none
/etc/nftables.conf:41:29-30: Evaluate
ip protocol 47 ip saddr x.x.x.x accept
^^
$47
/etc/nftables.conf:41:29-30: Evaluate
ip protocol 47 ip saddr x.x.x.x accept
^^
gre
[1] 20347 segmentation fault sudo nft --debug all -f /etc/nftables.conf</pre>
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</p>
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