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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Fri, 02 Oct 2026 16:11:57 +0000</lastBuildDate>
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      <title>CVE-2026-63967 — iio: imu: st_lsm6dsx: fix stack leak in tagged FIFO buffer</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-63967</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;iio: imu: st_lsm6dsx: fix stack leak in tagged FIFO buffer&lt;/p&gt;
&lt;p&gt;The tagged FIFO path declares iio_buff on the stack with __aligned(8)
but no initializer, but there is a hole in the structure, which will
then leak to userspace as ST_LSM6DSX_SAMPLE_SIZE bytes (6) will be
copied, but the space between that and the timestamp are not
initialized.&lt;/p&gt;
&lt;p&gt;Commit c14edb4d0bdc (&amp;#34;iio:imu:st_lsm6dsx Fix alignment and data leak
issues&amp;#34;) moved the untagged FIFO path to a kzalloc&amp;#39;d buffer in hw-&amp;gt;scan,
but for the tagged path it only added the alignment qualifier and not
the initializer :(&lt;/p&gt;
&lt;p&gt;Fix this by just zero-initializing the structure on the stack.&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;iio: imu: st_lsm6dsx: fix stack leak in tagged FIFO buffer&lt;/p&gt;
&lt;p&gt;The tagged FIFO path declares iio_buff on the stack with __aligned(8)
but no initializer, but there is a hole in the structure, which will
then leak to userspace as ST_LSM6DSX_SAMPLE_SIZE bytes (6) will be
copied, but the space between that and the timestamp are not
initialized.&lt;/p&gt;
&lt;p&gt;Commit c14edb4d0bdc (&amp;#34;iio:imu:st_lsm6dsx Fix alignment and data leak
issues&amp;#34;) moved the untagged FIFO path to a kzalloc&amp;#39;d buffer in hw-&amp;gt;scan,
but for the tagged path it only added the alignment qualifier and not
the initializer :(&lt;/p&gt;
&lt;p&gt;Fix this by just zero-initializing the structure on the stack.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2026-63967</guid>
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