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    <lastBuildDate>Fri, 09 Oct 2026 10:35:32 +0000</lastBuildDate>
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      <title>CVE-2025-21956 — drm/amd/display: Assign normalized_pix_clk when color depth = 14</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2025-21956</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/amd/display: Assign normalized_pix_clk when color depth = 14&lt;/p&gt;
&lt;p&gt;[WHY &amp;amp; HOW]
A warning message &amp;#34;WARNING: CPU: 4 PID: 459 at ... /dc_resource.c:3397
calculate_phy_pix_clks+0xef/0x100 [amdgpu]&amp;#34; occurs because the
display_color_depth == COLOR_DEPTH_141414 is not handled. This is
observed in Radeon RX 6600 XT.&lt;/p&gt;
&lt;p&gt;It is fixed by assigning pix_clk * (14 * 3) / 24 - same as the rests.&lt;/p&gt;
&lt;p&gt;Also fixes the indentation in get_norm_pix_clk.&lt;/p&gt;
&lt;p&gt;(cherry picked from commit 274a87eb389f58eddcbc5659ab0b180b37e92775)&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/amd/display: Assign normalized_pix_clk when color depth = 14&lt;/p&gt;
&lt;p&gt;[WHY &amp;amp; HOW]
A warning message &amp;#34;WARNING: CPU: 4 PID: 459 at ... /dc_resource.c:3397
calculate_phy_pix_clks+0xef/0x100 [amdgpu]&amp;#34; occurs because the
display_color_depth == COLOR_DEPTH_141414 is not handled. This is
observed in Radeon RX 6600 XT.&lt;/p&gt;
&lt;p&gt;It is fixed by assigning pix_clk * (14 * 3) / 24 - same as the rests.&lt;/p&gt;
&lt;p&gt;Also fixes the indentation in get_norm_pix_clk.&lt;/p&gt;
&lt;p&gt;(cherry picked from commit 274a87eb389f58eddcbc5659ab0b180b37e92775)&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/cve-2025-21956</guid>
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