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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Wed, 30 Sep 2026 02:39:59 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-43494 — net/rds: reset op_nents when zerocopy page pin fails</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-43494</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;net/rds: reset op_nents when zerocopy page pin fails&lt;/p&gt;
&lt;p&gt;When iov_iter_get_pages2() fails in rds_message_zcopy_from_user(),
the pinned pages are released with put_page(), and
rm-&amp;gt;data.op_mmp_znotifier is cleared.  But we fail to properly
clear rm-&amp;gt;data.op_nents.&lt;/p&gt;
&lt;p&gt;Later when rds_message_purge() is called from rds_sendmsg() the
cleanup loop iterates over the incorrectly non zero number of
op_nents and frees them again.&lt;/p&gt;
&lt;p&gt;Fix this by properly resetting op_nents when it should be in
rds_message_zcopy_from_user().&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;net/rds: reset op_nents when zerocopy page pin fails&lt;/p&gt;
&lt;p&gt;When iov_iter_get_pages2() fails in rds_message_zcopy_from_user(),
the pinned pages are released with put_page(), and
rm-&amp;gt;data.op_mmp_znotifier is cleared.  But we fail to properly
clear rm-&amp;gt;data.op_nents.&lt;/p&gt;
&lt;p&gt;Later when rds_message_purge() is called from rds_sendmsg() the
cleanup loop iterates over the incorrectly non zero number of
op_nents and frees them again.&lt;/p&gt;
&lt;p&gt;Fix this by properly resetting op_nents when it should be in
rds_message_zcopy_from_user().&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2026-43494</guid>
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