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    <title>Most recent entries from all</title>
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    <lastBuildDate>Tue, 03 Nov 2026 04:34:25 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-98605 — drm/bridge: samsung-dsim: fix TE GPIO lifetime for host attach</title>
      <link>https://db.gcve.eu/vuln/cve-2026-98605</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/bridge: samsung-dsim: fix TE GPIO lifetime for host attach&lt;/p&gt;
&lt;p&gt;When the Exynos DSI driver was generalized into samsung-dsim, the TE
GPIO acquisition was switched from gpiod_get_optional() to
devm_gpiod_get_optional() while keeping the matching gpiod_put() calls.
That combination is wrong for a managed descriptor.&lt;/p&gt;
&lt;p&gt;However, dropping the puts and keeping the managed get is also wrong:
samsung_dsim_register_te_irq() runs from the DSI host attach callback,
and host detach/reattach can happen without destroying the device that
owns the managed action. A second attach would then request the GPIO
again without having released it.&lt;/p&gt;
&lt;p&gt;Switch back to a non-managed gpiod_get_optional() and keep the explicit
gpiod_put() on the request_irq() error path and in
samsung_dsim_unregister_te_irq().&lt;/p&gt;
&lt;p&gt;[Luca: remove unnecessary comment]&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/bridge: samsung-dsim: fix TE GPIO lifetime for host attach&lt;/p&gt;
&lt;p&gt;When the Exynos DSI driver was generalized into samsung-dsim, the TE
GPIO acquisition was switched from gpiod_get_optional() to
devm_gpiod_get_optional() while keeping the matching gpiod_put() calls.
That combination is wrong for a managed descriptor.&lt;/p&gt;
&lt;p&gt;However, dropping the puts and keeping the managed get is also wrong:
samsung_dsim_register_te_irq() runs from the DSI host attach callback,
and host detach/reattach can happen without destroying the device that
owns the managed action. A second attach would then request the GPIO
again without having released it.&lt;/p&gt;
&lt;p&gt;Switch back to a non-managed gpiod_get_optional() and keep the explicit
gpiod_put() on the request_irq() error path and in
samsung_dsim_unregister_te_irq().&lt;/p&gt;
&lt;p&gt;[Luca: remove unnecessary comment]&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://db.gcve.eu/vuln/cve-2026-98605</guid>
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