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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 18:06:58 +0000</lastBuildDate>
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      <title>CVE-2026-90022 — usb: gadget: f_midi2: fix use-after-free in string attribute show path</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-90022</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;usb: gadget: f_midi2: fix use-after-free in string attribute show path&lt;/p&gt;
&lt;p&gt;f_midi2_opts_str_show() takes the string lock internally, but its
callers dereference the opts-&amp;gt;info.&amp;lt;field&amp;gt; pointer before calling it,
outside the lock. This races with f_midi2_opts_str_store(), which
frees the old string under opts-&amp;gt;lock when the attribute is written
concurrently, the show path can read a pointer that gets freed
before the lock inside str_show() is even taken.&lt;/p&gt;
&lt;p&gt;Change f_midi2_opts_str_show() to take a pointer to the string field,
matching the existing pattern in f_midi2_opts_str_store(), and
dereference it only after the lock is held. Update all three callers
(iface_name, block name, and the EP string option macro) accordingly.&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;usb: gadget: f_midi2: fix use-after-free in string attribute show path&lt;/p&gt;
&lt;p&gt;f_midi2_opts_str_show() takes the string lock internally, but its
callers dereference the opts-&amp;gt;info.&amp;lt;field&amp;gt; pointer before calling it,
outside the lock. This races with f_midi2_opts_str_store(), which
frees the old string under opts-&amp;gt;lock when the attribute is written
concurrently, the show path can read a pointer that gets freed
before the lock inside str_show() is even taken.&lt;/p&gt;
&lt;p&gt;Change f_midi2_opts_str_show() to take a pointer to the string field,
matching the existing pattern in f_midi2_opts_str_store(), and
dereference it only after the lock is held. Update all three callers
(iface_name, block name, and the EP string option macro) accordingly.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2026-90022</guid>
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