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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Mon, 28 Sep 2026 19:05:12 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-31638 — rxrpc: Only put the call ref if one was acquired</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-31638</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;rxrpc: Only put the call ref if one was acquired&lt;/p&gt;
&lt;p&gt;rxrpc_input_packet_on_conn() can process a to-client packet after the
current client call on the channel has already been torn down.  In that
case chan-&amp;gt;call is NULL, rxrpc_try_get_call() returns NULL and there is
no reference to drop.&lt;/p&gt;
&lt;p&gt;The client-side implicit-end error path does not account for that and
unconditionally calls rxrpc_put_call().  This turns a protocol error
path into a kernel crash instead of rejecting the packet.&lt;/p&gt;
&lt;p&gt;Only drop the call reference if one was actually acquired.  Keep the
existing protocol error handling unchanged.&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;rxrpc: Only put the call ref if one was acquired&lt;/p&gt;
&lt;p&gt;rxrpc_input_packet_on_conn() can process a to-client packet after the
current client call on the channel has already been torn down.  In that
case chan-&amp;gt;call is NULL, rxrpc_try_get_call() returns NULL and there is
no reference to drop.&lt;/p&gt;
&lt;p&gt;The client-side implicit-end error path does not account for that and
unconditionally calls rxrpc_put_call().  This turns a protocol error
path into a kernel crash instead of rejecting the packet.&lt;/p&gt;
&lt;p&gt;Only drop the call reference if one was actually acquired.  Keep the
existing protocol error handling unchanged.&lt;/p&gt;</content:encoded>
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