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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Thu, 01 Oct 2026 16:54:51 +0000</lastBuildDate>
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      <title>CVE-2026-45897 — netfilter: nft_counter: serialize reset with spinlock</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-45897</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;netfilter: nft_counter: serialize reset with spinlock&lt;/p&gt;
&lt;p&gt;Add a global static spinlock to serialize counter fetch+reset
operations, preventing concurrent dump-and-reset from underrunning
values.&lt;/p&gt;
&lt;p&gt;The lock is taken before fetching the total so that two parallel
resets cannot both read the same counter values and then both
subtract them.&lt;/p&gt;
&lt;p&gt;A global lock is used for simplicity since resets are infrequent.
If this becomes a bottleneck, it can be replaced with a per-net
lock later.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;netfilter: nft_counter: serialize reset with spinlock&lt;/p&gt;
&lt;p&gt;Add a global static spinlock to serialize counter fetch+reset
operations, preventing concurrent dump-and-reset from underrunning
values.&lt;/p&gt;
&lt;p&gt;The lock is taken before fetching the total so that two parallel
resets cannot both read the same counter values and then both
subtract them.&lt;/p&gt;
&lt;p&gt;A global lock is used for simplicity since resets are infrequent.
If this becomes a bottleneck, it can be replaced with a per-net
lock later.&lt;/p&gt;</content:encoded>
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