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    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Sat, 03 Oct 2026 02:46:38 +0000</lastBuildDate>
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      <title>CVE-2024-53055 — wifi: iwlwifi: mvm: fix 6 GHz scan construction</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2024-53055</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: iwlwifi: mvm: fix 6 GHz scan construction&lt;/p&gt;
&lt;p&gt;If more than 255 colocated APs exist for the set of all
APs found during 2.4/5 GHz scanning, then the 6 GHz scan
construction will loop forever since the loop variable
has type u8, which can never reach the number found when
that&amp;#39;s bigger than 255, and is stored in a u32 variable.
Also move it into the loops to have a smaller scope.&lt;/p&gt;
&lt;p&gt;Using a u32 there is fine, we limit the number of APs in
the scan list and each has a limit on the number of RNR
entries due to the frame size. With a limit of 1000 scan
results, a frame size upper bound of 4096 (really it&amp;#39;s
more like ~2300) and a TBTT entry size of at least 11,
we get an upper bound for the number of ~372k, well in
the bounds of a u32.&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: iwlwifi: mvm: fix 6 GHz scan construction&lt;/p&gt;
&lt;p&gt;If more than 255 colocated APs exist for the set of all
APs found during 2.4/5 GHz scanning, then the 6 GHz scan
construction will loop forever since the loop variable
has type u8, which can never reach the number found when
that&amp;#39;s bigger than 255, and is stored in a u32 variable.
Also move it into the loops to have a smaller scope.&lt;/p&gt;
&lt;p&gt;Using a u32 there is fine, we limit the number of APs in
the scan list and each has a limit on the number of RNR
entries due to the frame size. With a limit of 1000 scan
results, a frame size upper bound of 4096 (really it&amp;#39;s
more like ~2300) and a TBTT entry size of at least 11,
we get an upper bound for the number of ~372k, well in
the bounds of a u32.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2024-53055</guid>
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