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    <link>https://cve.radiocsirt.org</link>
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    <lastBuildDate>Fri, 09 Oct 2026 18:36:54 +0000</lastBuildDate>
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      <title>CVE-2024-26820 — hv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2024-26820</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux, Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;hv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed&lt;/p&gt;
&lt;p&gt;If hv_netvsc driver is unloaded and reloaded, the NET_DEVICE_REGISTER
handler cannot perform VF register successfully as the register call
is received before netvsc_probe is finished. This is because we
register register_netdevice_notifier() very early( even before
vmbus_driver_register()).
To fix this, we try to register each such matching VF( if it is visible
as a netdevice) at the end of netvsc_probe.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux, Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;hv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed&lt;/p&gt;
&lt;p&gt;If hv_netvsc driver is unloaded and reloaded, the NET_DEVICE_REGISTER
handler cannot perform VF register successfully as the register call
is received before netvsc_probe is finished. This is because we
register register_netdevice_notifier() very early( even before
vmbus_driver_register()).
To fix this, we try to register each such matching VF( if it is visible
as a netdevice) at the end of netvsc_probe.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/cve-2024-26820</guid>
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