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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Sun, 04 Oct 2026 17:51:36 +0000</lastBuildDate>
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      <title>CVE-2023-52932 — mm/swapfile: add cond_resched() in get_swap_pages()</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2023-52932</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;mm/swapfile: add cond_resched() in get_swap_pages()&lt;/p&gt;
&lt;p&gt;The softlockup still occurs in get_swap_pages() under memory pressure.  64
CPU cores, 64GB memory, and 28 zram devices, the disksize of each zram
device is 50MB with same priority as si.  Use the stress-ng tool to
increase memory pressure, causing the system to oom frequently.&lt;/p&gt;
&lt;p&gt;The plist_for_each_entry_safe() loops in get_swap_pages() could reach tens
of thousands of times to find available space (extreme case:
cond_resched() is not called in scan_swap_map_slots()).  Let&amp;#39;s add
cond_resched() into get_swap_pages() when failed to find available space
to avoid softlockup.&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;mm/swapfile: add cond_resched() in get_swap_pages()&lt;/p&gt;
&lt;p&gt;The softlockup still occurs in get_swap_pages() under memory pressure.  64
CPU cores, 64GB memory, and 28 zram devices, the disksize of each zram
device is 50MB with same priority as si.  Use the stress-ng tool to
increase memory pressure, causing the system to oom frequently.&lt;/p&gt;
&lt;p&gt;The plist_for_each_entry_safe() loops in get_swap_pages() could reach tens
of thousands of times to find available space (extreme case:
cond_resched() is not called in scan_swap_map_slots()).  Let&amp;#39;s add
cond_resched() into get_swap_pages() when failed to find available space
to avoid softlockup.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2023-52932</guid>
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