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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Fri, 02 Oct 2026 15:26:03 +0000</lastBuildDate>
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      <title>CVE-2026-74459 — can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-74459</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;can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure&lt;/p&gt;
&lt;p&gt;es58x_read_bulk_callback() resubmits the RX URB after processing a received
packet. If the resubmit succeeds, the URB remains anchored and will be
handled by the normal RX path or by teardown.&lt;/p&gt;
&lt;p&gt;However, if usb_submit_urb() fails, the callback unanchors the URB and then
returns directly. This skips the existing free_urb path, so the coherent
transfer buffer allocated with usb_alloc_coherent() is not released.&lt;/p&gt;
&lt;p&gt;Reuse the existing free_urb path after a resubmit failure so that the RX
coherent buffer is freed before leaving the callback.&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;can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure&lt;/p&gt;
&lt;p&gt;es58x_read_bulk_callback() resubmits the RX URB after processing a received
packet. If the resubmit succeeds, the URB remains anchored and will be
handled by the normal RX path or by teardown.&lt;/p&gt;
&lt;p&gt;However, if usb_submit_urb() fails, the callback unanchors the URB and then
returns directly. This skips the existing free_urb path, so the coherent
transfer buffer allocated with usb_alloc_coherent() is not released.&lt;/p&gt;
&lt;p&gt;Reuse the existing free_urb path after a resubmit failure so that the RX
coherent buffer is freed before leaving the callback.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2026-74459</guid>
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