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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Fri, 02 Oct 2026 15:26:17 +0000</lastBuildDate>
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      <title>CVE-2026-74281 — tipc: reject inverted service ranges from peer bindings</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-74281</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;tipc: reject inverted service ranges from peer bindings&lt;/p&gt;
&lt;p&gt;tipc_update_nametbl() inserts a binding advertised by a peer node using
the lower and upper service-range bounds taken directly from the wire,
without checking that lower &amp;lt;= upper. The local bind path validates the
ordering (tipc_uaddr_valid()), but the name-distribution path does not.&lt;/p&gt;
&lt;p&gt;A binding with lower &amp;gt; upper is inserted at the far end of the
service-range rbtree (keyed on lower) where no lookup or withdrawal can
ever match it (service_range_foreach_match() requires sr-&amp;gt;lower &amp;lt;= end).
The publication, its service_range node and the augmented rbtree entry
are then leaked for the lifetime of the namespace, and there is no
per-peer cap equivalent to TIPC_MAX_PUBL on locally created bindings.&lt;/p&gt;
&lt;p&gt;Reject inverted ranges in the network path as well. A peer node can
otherwise leak unbounded binding-table memory by sending PUBLICATION
items with lower &amp;gt; upper.&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;tipc: reject inverted service ranges from peer bindings&lt;/p&gt;
&lt;p&gt;tipc_update_nametbl() inserts a binding advertised by a peer node using
the lower and upper service-range bounds taken directly from the wire,
without checking that lower &amp;lt;= upper. The local bind path validates the
ordering (tipc_uaddr_valid()), but the name-distribution path does not.&lt;/p&gt;
&lt;p&gt;A binding with lower &amp;gt; upper is inserted at the far end of the
service-range rbtree (keyed on lower) where no lookup or withdrawal can
ever match it (service_range_foreach_match() requires sr-&amp;gt;lower &amp;lt;= end).
The publication, its service_range node and the augmented rbtree entry
are then leaked for the lifetime of the namespace, and there is no
per-peer cap equivalent to TIPC_MAX_PUBL on locally created bindings.&lt;/p&gt;
&lt;p&gt;Reject inverted ranges in the network path as well. A peer node can
otherwise leak unbounded binding-table memory by sending PUBLICATION
items with lower &amp;gt; upper.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2026-74281</guid>
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