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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 22:36:12 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-93112 — bpf: Require a BPF cpumask for bpf_cpumask_populate()</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-93112</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;bpf: Require a BPF cpumask for bpf_cpumask_populate()&lt;/p&gt;
&lt;p&gt;bpf_cpumask_populate() writes to its destination with bitmap_copy(), but
the destination is typed as struct cpumask *. That allows the verifier to
accept borrowed cpumask pointers returned by read-only kfuncs, such as
scx_bpf_get_online_cpumask(), as a writable destination.&lt;/p&gt;
&lt;p&gt;Make the destination a struct bpf_cpumask * so populate follows the same
ownership rule as the other mutating cpumask kfuncs. Query kfuncs continue
to accept const struct cpumask * inputs.&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;bpf: Require a BPF cpumask for bpf_cpumask_populate()&lt;/p&gt;
&lt;p&gt;bpf_cpumask_populate() writes to its destination with bitmap_copy(), but
the destination is typed as struct cpumask *. That allows the verifier to
accept borrowed cpumask pointers returned by read-only kfuncs, such as
scx_bpf_get_online_cpumask(), as a writable destination.&lt;/p&gt;
&lt;p&gt;Make the destination a struct bpf_cpumask * so populate follows the same
ownership rule as the other mutating cpumask kfuncs. Query kfuncs continue
to accept const struct cpumask * inputs.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2026-93112</guid>
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