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    <lastBuildDate>Wed, 30 Sep 2026 17:32:24 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-31547 — drm/xe: Fix missing runtime PM reference in ccs_mode_store</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-31547</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/xe: Fix missing runtime PM reference in ccs_mode_store&lt;/p&gt;
&lt;p&gt;ccs_mode_store() calls xe_gt_reset() which internally invokes
xe_pm_runtime_get_noresume(). That function requires the caller
to already hold an outer runtime PM reference and warns if none
is held:&lt;/p&gt;
&lt;p&gt;[46.891177] xe 0000:03:00.0: [drm] Missing outer runtime PM protection
  [46.891178] WARNING: drivers/gpu/drm/xe/xe_pm.c:885 at
  xe_pm_runtime_get_noresume+0x8b/0xc0&lt;/p&gt;
&lt;p&gt;Fix this by protecting xe_gt_reset() with the scope-based
guard(xe_pm_runtime)(xe), which is the preferred form when
the reference lifetime matches a single scope.&lt;/p&gt;
&lt;p&gt;v2:
- Use scope-based guard(xe_pm_runtime)(xe) (Shuicheng)
- Update commit message accordingly&lt;/p&gt;
&lt;p&gt;(cherry picked from commit 7937ea733f79b3f25e802a0c8360bf7423856f36)&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/xe: Fix missing runtime PM reference in ccs_mode_store&lt;/p&gt;
&lt;p&gt;ccs_mode_store() calls xe_gt_reset() which internally invokes
xe_pm_runtime_get_noresume(). That function requires the caller
to already hold an outer runtime PM reference and warns if none
is held:&lt;/p&gt;
&lt;p&gt;[46.891177] xe 0000:03:00.0: [drm] Missing outer runtime PM protection
  [46.891178] WARNING: drivers/gpu/drm/xe/xe_pm.c:885 at
  xe_pm_runtime_get_noresume+0x8b/0xc0&lt;/p&gt;
&lt;p&gt;Fix this by protecting xe_gt_reset() with the scope-based
guard(xe_pm_runtime)(xe), which is the preferred form when
the reference lifetime matches a single scope.&lt;/p&gt;
&lt;p&gt;v2:
- Use scope-based guard(xe_pm_runtime)(xe) (Shuicheng)
- Update commit message accordingly&lt;/p&gt;
&lt;p&gt;(cherry picked from commit 7937ea733f79b3f25e802a0c8360bf7423856f36)&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2026-31547</guid>
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