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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Wed, 07 Oct 2026 03:07:10 +0000</lastBuildDate>
    <item>
      <title>CVE-2022-49410 — tracing: Fix potential double free in create_var_ref()</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2022-49410</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;tracing: Fix potential double free in create_var_ref()&lt;/p&gt;
&lt;p&gt;In create_var_ref(), init_var_ref() is called to initialize the fields
of variable ref_field, which is allocated in the previous function call
to create_hist_field(). Function init_var_ref() allocates the
corresponding fields such as ref_field-&amp;gt;system, but frees these fields
when the function encounters an error. The caller later calls
destroy_hist_field() to conduct error handling, which frees the fields
and the variable itself. This results in double free of the fields which
are already freed in the previous function.&lt;/p&gt;
&lt;p&gt;Fix this by storing NULL to the corresponding fields when they are freed
in init_var_ref().&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;tracing: Fix potential double free in create_var_ref()&lt;/p&gt;
&lt;p&gt;In create_var_ref(), init_var_ref() is called to initialize the fields
of variable ref_field, which is allocated in the previous function call
to create_hist_field(). Function init_var_ref() allocates the
corresponding fields such as ref_field-&amp;gt;system, but frees these fields
when the function encounters an error. The caller later calls
destroy_hist_field() to conduct error handling, which frees the fields
and the variable itself. This results in double free of the fields which
are already freed in the previous function.&lt;/p&gt;
&lt;p&gt;Fix this by storing NULL to the corresponding fields when they are freed
in init_var_ref().&lt;/p&gt;</content:encoded>
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