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    <lastBuildDate>Thu, 01 Oct 2026 01:16:06 +0000</lastBuildDate>
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      <title>CVE-2025-38103 — HID: usbhid: Eliminate recurrent out-of-bounds bug in usbhid_parse()</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2025-38103</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: usbhid: Eliminate recurrent out-of-bounds bug in usbhid_parse()&lt;/p&gt;
&lt;p&gt;Update struct hid_descriptor to better reflect the mandatory and
optional parts of the HID Descriptor as per USB HID 1.11 specification.
Note: the kernel currently does not parse any optional HID class
descriptors, only the mandatory report descriptor.&lt;/p&gt;
&lt;p&gt;Update all references to member element desc[0] to rpt_desc.&lt;/p&gt;
&lt;p&gt;Add test to verify bLength and bNumDescriptors values are valid.&lt;/p&gt;
&lt;p&gt;Replace the for loop with direct access to the mandatory HID class
descriptor member for the report descriptor. This eliminates the
possibility of getting an out-of-bounds fault.&lt;/p&gt;
&lt;p&gt;Add a warning message if the HID descriptor contains any unsupported
optional HID class descriptors.&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: usbhid: Eliminate recurrent out-of-bounds bug in usbhid_parse()&lt;/p&gt;
&lt;p&gt;Update struct hid_descriptor to better reflect the mandatory and
optional parts of the HID Descriptor as per USB HID 1.11 specification.
Note: the kernel currently does not parse any optional HID class
descriptors, only the mandatory report descriptor.&lt;/p&gt;
&lt;p&gt;Update all references to member element desc[0] to rpt_desc.&lt;/p&gt;
&lt;p&gt;Add test to verify bLength and bNumDescriptors values are valid.&lt;/p&gt;
&lt;p&gt;Replace the for loop with direct access to the mandatory HID class
descriptor member for the report descriptor. This eliminates the
possibility of getting an out-of-bounds fault.&lt;/p&gt;
&lt;p&gt;Add a warning message if the HID descriptor contains any unsupported
optional HID class descriptors.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2025-38103</guid>
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