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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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      <title>CVE-2025-39836 — efi: stmm: Fix incorrect buffer allocation method</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2025-39836</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;efi: stmm: Fix incorrect buffer allocation method&lt;/p&gt;
&lt;p&gt;The communication buffer allocated by setup_mm_hdr() is later on passed
to tee_shm_register_kernel_buf(). The latter expects those buffers to be
contiguous pages, but setup_mm_hdr() just uses kmalloc(). That can cause
various corruptions or BUGs, specifically since commit 9aec2fb0fd5e
(&amp;#34;slab: allocate frozen pages&amp;#34;), though it was broken before as well.&lt;/p&gt;
&lt;p&gt;Fix this by using alloc_pages_exact() instead of kmalloc().&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;efi: stmm: Fix incorrect buffer allocation method&lt;/p&gt;
&lt;p&gt;The communication buffer allocated by setup_mm_hdr() is later on passed
to tee_shm_register_kernel_buf(). The latter expects those buffers to be
contiguous pages, but setup_mm_hdr() just uses kmalloc(). That can cause
various corruptions or BUGs, specifically since commit 9aec2fb0fd5e
(&amp;#34;slab: allocate frozen pages&amp;#34;), though it was broken before as well.&lt;/p&gt;
&lt;p&gt;Fix this by using alloc_pages_exact() instead of kmalloc().&lt;/p&gt;</content:encoded>
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