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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Tue, 29 Sep 2026 04:53:25 +0000</lastBuildDate>
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      <title>CVE-2023-52776 — wifi: ath12k: fix dfs-radar and temperature event locking</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2023-52776</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;wifi: ath12k: fix dfs-radar and temperature event locking&lt;/p&gt;
&lt;p&gt;The ath12k active pdevs are protected by RCU but the DFS-radar and
temperature event handling code calling ath12k_mac_get_ar_by_pdev_id()
was not marked as a read-side critical section.&lt;/p&gt;
&lt;p&gt;Mark the code in question as RCU read-side critical sections to avoid
any potential use-after-free issues.&lt;/p&gt;
&lt;p&gt;Note that the temperature event handler looks like a place holder
currently but would still trigger an RCU lockdep splat.&lt;/p&gt;
&lt;p&gt;Compile tested only.&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;wifi: ath12k: fix dfs-radar and temperature event locking&lt;/p&gt;
&lt;p&gt;The ath12k active pdevs are protected by RCU but the DFS-radar and
temperature event handling code calling ath12k_mac_get_ar_by_pdev_id()
was not marked as a read-side critical section.&lt;/p&gt;
&lt;p&gt;Mark the code in question as RCU read-side critical sections to avoid
any potential use-after-free issues.&lt;/p&gt;
&lt;p&gt;Note that the temperature event handler looks like a place holder
currently but would still trigger an RCU lockdep splat.&lt;/p&gt;
&lt;p&gt;Compile tested only.&lt;/p&gt;</content:encoded>
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