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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 06:32:02 +0000</lastBuildDate>
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      <title>CVE-2025-38515 — drm/sched: Increment job count before swapping tail spsc queue</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2025-38515</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;drm/sched: Increment job count before swapping tail spsc queue&lt;/p&gt;
&lt;p&gt;A small race exists between spsc_queue_push and the run-job worker, in
which spsc_queue_push may return not-first while the run-job worker has
already idled due to the job count being zero. If this race occurs, job
scheduling stops, leading to hangs while waiting on the job’s DMA
fences.&lt;/p&gt;
&lt;p&gt;Seal this race by incrementing the job count before appending to the
SPSC queue.&lt;/p&gt;
&lt;p&gt;This race was observed on a drm-tip 6.16-rc1 build with the Xe driver in
an SVM test case.&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;drm/sched: Increment job count before swapping tail spsc queue&lt;/p&gt;
&lt;p&gt;A small race exists between spsc_queue_push and the run-job worker, in
which spsc_queue_push may return not-first while the run-job worker has
already idled due to the job count being zero. If this race occurs, job
scheduling stops, leading to hangs while waiting on the job’s DMA
fences.&lt;/p&gt;
&lt;p&gt;Seal this race by incrementing the job count before appending to the
SPSC queue.&lt;/p&gt;
&lt;p&gt;This race was observed on a drm-tip 6.16-rc1 build with the Xe driver in
an SVM test case.&lt;/p&gt;</content:encoded>
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