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    <title>Most recent entries from all</title>
    <link>https://db.gcve.eu</link>
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    <lastBuildDate>Sun, 25 Oct 2026 15:35:30 +0000</lastBuildDate>
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      <title>CVE-2026-98403 — s390/boot: Avoid IPL parameter append past command line</title>
      <link>https://db.gcve.eu/vuln/cve-2026-98403</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;s390/boot: Avoid IPL parameter append past command line&lt;/p&gt;
&lt;p&gt;A command line may occupy all but the terminating byte of
COMMAND_LINE_SIZE. In that case append_ipl_block_parm() passes a zero size
to the IPL parameter conversion helpers and points the destination one
byte past early_command_line. The helpers subtract one from the unsigned
size and write the converted parameter outside the command line buffer.&lt;/p&gt;
&lt;p&gt;Convert the IPL parameter in the command line parsing buffer first. A
parameter beginning with &amp;#39;=&amp;#39; can then replace the existing command line
regardless of its length, while other parameters are appended only when
space remains.&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;s390/boot: Avoid IPL parameter append past command line&lt;/p&gt;
&lt;p&gt;A command line may occupy all but the terminating byte of
COMMAND_LINE_SIZE. In that case append_ipl_block_parm() passes a zero size
to the IPL parameter conversion helpers and points the destination one
byte past early_command_line. The helpers subtract one from the unsigned
size and write the converted parameter outside the command line buffer.&lt;/p&gt;
&lt;p&gt;Convert the IPL parameter in the command line parsing buffer first. A
parameter beginning with &amp;#39;=&amp;#39; can then replace the existing command line
regardless of its length, while other parameters are appended only when
space remains.&lt;/p&gt;</content:encoded>
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