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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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      <title>CVE-2024-57949 — irqchip/gic-v3-its: Don't enable interrupts in its_irq_set_vcpu_affinity()</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2024-57949</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;irqchip/gic-v3-its: Don&amp;#39;t enable interrupts in its_irq_set_vcpu_affinity()&lt;/p&gt;
&lt;p&gt;The following call-chain leads to enabling interrupts in a nested interrupt
disabled section:&lt;/p&gt;
&lt;p&gt;irq_set_vcpu_affinity()
  irq_get_desc_lock()
     raw_spin_lock_irqsave()   &amp;lt;--- Disable interrupts
  its_irq_set_vcpu_affinity()
     guard(raw_spinlock_irq)   &amp;lt;--- Enables interrupts when leaving the guard()
  irq_put_desc_unlock()        &amp;lt;--- Warns because interrupts are enabled&lt;/p&gt;
&lt;p&gt;This was broken in commit b97e8a2f7130, which replaced the original
raw_spin_[un]lock() pair with guard(raw_spinlock_irq).&lt;/p&gt;
&lt;p&gt;Fix the issue by using guard(raw_spinlock).&lt;/p&gt;
&lt;p&gt;[ tglx: Massaged change log ]&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;irqchip/gic-v3-its: Don&amp;#39;t enable interrupts in its_irq_set_vcpu_affinity()&lt;/p&gt;
&lt;p&gt;The following call-chain leads to enabling interrupts in a nested interrupt
disabled section:&lt;/p&gt;
&lt;p&gt;irq_set_vcpu_affinity()
  irq_get_desc_lock()
     raw_spin_lock_irqsave()   &amp;lt;--- Disable interrupts
  its_irq_set_vcpu_affinity()
     guard(raw_spinlock_irq)   &amp;lt;--- Enables interrupts when leaving the guard()
  irq_put_desc_unlock()        &amp;lt;--- Warns because interrupts are enabled&lt;/p&gt;
&lt;p&gt;This was broken in commit b97e8a2f7130, which replaced the original
raw_spin_[un]lock() pair with guard(raw_spinlock_irq).&lt;/p&gt;
&lt;p&gt;Fix the issue by using guard(raw_spinlock).&lt;/p&gt;
&lt;p&gt;[ tglx: Massaged change log ]&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2024-57949</guid>
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