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    <title>Most recent entries from all</title>
    <link>https://db.gcve.eu</link>
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    <lastBuildDate>Sat, 03 Oct 2026 01:48:00 +0000</lastBuildDate>
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      <title>CVE-2026-53227 — net: openvswitch: fix possible kfree_skb of ERR_PTR</title>
      <link>https://db.gcve.eu/vuln/cve-2026-53227</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;net: openvswitch: fix possible kfree_skb of ERR_PTR&lt;/p&gt;
&lt;p&gt;After the patch in the &amp;#34;Fixes&amp;#34; tag, the allocation of the &amp;#34;reply&amp;#34; skb
can happen either before or after locking the ovs_mutex.&lt;/p&gt;
&lt;p&gt;However, error cleanups still follow the classical reversed order,
assuming &amp;#34;reply&amp;#34; is allocated before locking: it is freed after unlocking.&lt;/p&gt;
&lt;p&gt;If &amp;#34;reply&amp;#34; allocation happens after locking the mutex and it fails,
&amp;#34;reply&amp;#34; is left with an ERR_PTR, and execution jumps to the correspondent
cleanup stage which will try to free an invalid pointer.&lt;/p&gt;
&lt;p&gt;Fix this by setting the pointer to NULL after having saved its error
value.&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;net: openvswitch: fix possible kfree_skb of ERR_PTR&lt;/p&gt;
&lt;p&gt;After the patch in the &amp;#34;Fixes&amp;#34; tag, the allocation of the &amp;#34;reply&amp;#34; skb
can happen either before or after locking the ovs_mutex.&lt;/p&gt;
&lt;p&gt;However, error cleanups still follow the classical reversed order,
assuming &amp;#34;reply&amp;#34; is allocated before locking: it is freed after unlocking.&lt;/p&gt;
&lt;p&gt;If &amp;#34;reply&amp;#34; allocation happens after locking the mutex and it fails,
&amp;#34;reply&amp;#34; is left with an ERR_PTR, and execution jumps to the correspondent
cleanup stage which will try to free an invalid pointer.&lt;/p&gt;
&lt;p&gt;Fix this by setting the pointer to NULL after having saved its error
value.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://db.gcve.eu/vuln/cve-2026-53227</guid>
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