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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 - nft: invalid octals silently parsed as zero"
href="https://bugzilla.netfilter.org/show_bug.cgi?id=1363">1363</a>
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<th>Summary</th>
<td>nft: invalid octals silently parsed as zero
</td>
</tr>
<tr>
<th>Product</th>
<td>nftables
</td>
</tr>
<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>Debian GNU/Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
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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>
</tr>
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<th>Reporter</th>
<td>arturo@debian.org
</td>
</tr></table>
<p>
<div>
<pre>Bug reported in the Debian bug tracker:
<a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=932880">https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=932880</a>
Original message follows:
I was aligning literal numbers with leading zeroes (instead of spaces).
I found that nft treats "010" as an octal number, i.e. 010 = 8. Fine.
But nft also thinks that 099 = 0!
nft should error out when it encounters such an invalid octal.
A simple example ruleset is shown below.
#!/usr/sbin/nft --file
flush ruleset
add table x
add chain x y
add rule x y ip saddr 9 continue comment "parsed as 0.0.0.9/32"
add rule x y ip saddr 09 continue comment "parsed as 0.0.0.0/32"
## This one generates an error, because "1 - 0" is an invalid interval.
#add rule x y ip saddr { 01 - 09 } continue
list chain x y</pre>
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