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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 16:57:24 +0000</lastBuildDate>
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      <title>CVE-2026-80605 — HID: picolcd: prevent NULL pointer dereference in picolcd_send_and_wait()</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-80605</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;HID: picolcd: prevent NULL pointer dereference in picolcd_send_and_wait()&lt;/p&gt;
&lt;p&gt;In picolcd_send_and_wait(), an integer overflow of the signed loop counter
&amp;#39;k&amp;#39; can theoretically lead to a NULL pointer dereference of &amp;#39;raw_data&amp;#39;.
If the loop executes more than INT_MAX times, &amp;#39;k&amp;#39; becomes negative,
making the condition &amp;#39;k &amp;lt; size&amp;#39; true even when &amp;#39;size&amp;#39; is 0.&lt;/p&gt;
&lt;p&gt;Change the type of &amp;#39;k&amp;#39; to &amp;#39;unsigned int&amp;#39; to prevent the overflow and
eliminate the out-of-bounds access.&lt;/p&gt;
&lt;p&gt;Found by Linux Verification Center (linuxtesting.org) with the Svace static
analysis tool.&lt;/p&gt;
&lt;p&gt;[jkosina@suse.com: extended hash length]&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;HID: picolcd: prevent NULL pointer dereference in picolcd_send_and_wait()&lt;/p&gt;
&lt;p&gt;In picolcd_send_and_wait(), an integer overflow of the signed loop counter
&amp;#39;k&amp;#39; can theoretically lead to a NULL pointer dereference of &amp;#39;raw_data&amp;#39;.
If the loop executes more than INT_MAX times, &amp;#39;k&amp;#39; becomes negative,
making the condition &amp;#39;k &amp;lt; size&amp;#39; true even when &amp;#39;size&amp;#39; is 0.&lt;/p&gt;
&lt;p&gt;Change the type of &amp;#39;k&amp;#39; to &amp;#39;unsigned int&amp;#39; to prevent the overflow and
eliminate the out-of-bounds access.&lt;/p&gt;
&lt;p&gt;Found by Linux Verification Center (linuxtesting.org) with the Svace static
analysis tool.&lt;/p&gt;
&lt;p&gt;[jkosina@suse.com: extended hash length]&lt;/p&gt;</content:encoded>
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