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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 03:51:49 +0000</lastBuildDate>
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      <title>CVE-2024-38586 — r8169: Fix possible ring buffer corruption on fragmented Tx packets.</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2024-38586</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;r8169: Fix possible ring buffer corruption on fragmented Tx packets.&lt;/p&gt;
&lt;p&gt;An issue was found on the RTL8125b when transmitting small fragmented
packets, whereby invalid entries were inserted into the transmit ring
buffer, subsequently leading to calls to dma_unmap_single() with a null
address.&lt;/p&gt;
&lt;p&gt;This was caused by rtl8169_start_xmit() not noticing changes to nr_frags
which may occur when small packets are padded (to work around hardware
quirks) in rtl8169_tso_csum_v2().&lt;/p&gt;
&lt;p&gt;To fix this, postpone inspecting nr_frags until after any padding has been
applied.&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;r8169: Fix possible ring buffer corruption on fragmented Tx packets.&lt;/p&gt;
&lt;p&gt;An issue was found on the RTL8125b when transmitting small fragmented
packets, whereby invalid entries were inserted into the transmit ring
buffer, subsequently leading to calls to dma_unmap_single() with a null
address.&lt;/p&gt;
&lt;p&gt;This was caused by rtl8169_start_xmit() not noticing changes to nr_frags
which may occur when small packets are padded (to work around hardware
quirks) in rtl8169_tso_csum_v2().&lt;/p&gt;
&lt;p&gt;To fix this, postpone inspecting nr_frags until after any padding has been
applied.&lt;/p&gt;</content:encoded>
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