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    <title>Most recent entries from all</title>
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    <lastBuildDate>Mon, 28 Sep 2026 07:52:36 +0000</lastBuildDate>
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      <title>CVE-2026-31683 — batman-adv: avoid OGM aggregation when skb tailroom is insufficient</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-31683</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;batman-adv: avoid OGM aggregation when skb tailroom is insufficient&lt;/p&gt;
&lt;p&gt;When OGM aggregation state is toggled at runtime, an existing forwarded
packet may have been allocated with only packet_len bytes, while a later
packet can still be selected for aggregation. Appending in this case can
hit skb_put overflow conditions.&lt;/p&gt;
&lt;p&gt;Reject aggregation when the target skb tailroom cannot accommodate the new
packet. The caller then falls back to creating a new forward packet
instead of appending.&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;batman-adv: avoid OGM aggregation when skb tailroom is insufficient&lt;/p&gt;
&lt;p&gt;When OGM aggregation state is toggled at runtime, an existing forwarded
packet may have been allocated with only packet_len bytes, while a later
packet can still be selected for aggregation. Appending in this case can
hit skb_put overflow conditions.&lt;/p&gt;
&lt;p&gt;Reject aggregation when the target skb tailroom cannot accommodate the new
packet. The caller then falls back to creating a new forward packet
instead of appending.&lt;/p&gt;</content:encoded>
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