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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 05:19:05 +0000</lastBuildDate>
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      <title>CVE-2026-31658 — net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit()</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-31658</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux, Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP, Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit()&lt;/p&gt;
&lt;p&gt;When dma_map_single() fails in tse_start_xmit(), the function returns
NETDEV_TX_OK without freeing the skb. Since NETDEV_TX_OK tells the
stack the packet was consumed, the skb is never freed, leaking memory
on every DMA mapping failure.&lt;/p&gt;
&lt;p&gt;Add dev_kfree_skb_any() before returning to properly free the skb.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux, Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP, Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit()&lt;/p&gt;
&lt;p&gt;When dma_map_single() fails in tse_start_xmit(), the function returns
NETDEV_TX_OK without freeing the skb. Since NETDEV_TX_OK tells the
stack the packet was consumed, the skb is never freed, leaking memory
on every DMA mapping failure.&lt;/p&gt;
&lt;p&gt;Add dev_kfree_skb_any() before returning to properly free the skb.&lt;/p&gt;</content:encoded>
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