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    <lastBuildDate>Tue, 29 Sep 2026 19:16:07 +0000</lastBuildDate>
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      <title>CVE-2024-39491 — ALSA: hda: cs35l56: Fix lifetime of cs_dsp instance</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2024-39491</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;ALSA: hda: cs35l56: Fix lifetime of cs_dsp instance&lt;/p&gt;
&lt;p&gt;The cs_dsp instance is initialized in the driver probe() so it
should be freed in the driver remove(). Also fix a missing call
to cs_dsp_remove() in the error path of cs35l56_hda_common_probe().&lt;/p&gt;
&lt;p&gt;The call to cs_dsp_remove() was being done in the component unbind
callback cs35l56_hda_unbind(). This meant that if the driver was
unbound and then re-bound it would be using an uninitialized cs_dsp
instance.&lt;/p&gt;
&lt;p&gt;It is best to initialize the cs_dsp instance in probe() so that it
can return an error if it fails. The component binding API doesn&amp;#39;t
have any error handling so there&amp;#39;s no way to handle a failure if
cs_dsp was initialized in the bind.&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;ALSA: hda: cs35l56: Fix lifetime of cs_dsp instance&lt;/p&gt;
&lt;p&gt;The cs_dsp instance is initialized in the driver probe() so it
should be freed in the driver remove(). Also fix a missing call
to cs_dsp_remove() in the error path of cs35l56_hda_common_probe().&lt;/p&gt;
&lt;p&gt;The call to cs_dsp_remove() was being done in the component unbind
callback cs35l56_hda_unbind(). This meant that if the driver was
unbound and then re-bound it would be using an uninitialized cs_dsp
instance.&lt;/p&gt;
&lt;p&gt;It is best to initialize the cs_dsp instance in probe() so that it
can return an error if it fails. The component binding API doesn&amp;#39;t
have any error handling so there&amp;#39;s no way to handle a failure if
cs_dsp was initialized in the bind.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2024-39491</guid>
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