CVE - CVE-2023-52932

CVE-ID
CVE-2023-52932	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: mm/swapfile: add cond_resched() in get_swap_pages() 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. 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's add cond_resched() into get_swap_pages() when failed to find available space to avoid softlockup.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/29f0349c5c76b627fe06b87d4b13fa03a6ce8e64 URL:https://git.kernel.org/stable/c/29f0349c5c76b627fe06b87d4b13fa03a6ce8e64 MISC:https://git.kernel.org/stable/c/30187be29052bba9203b0ae2bdd815e0bc2faaab URL:https://git.kernel.org/stable/c/30187be29052bba9203b0ae2bdd815e0bc2faaab MISC:https://git.kernel.org/stable/c/387217b97e99699c34e6d95ce2b91b327fcd853e URL:https://git.kernel.org/stable/c/387217b97e99699c34e6d95ce2b91b327fcd853e MISC:https://git.kernel.org/stable/c/49178d4d61e78aed8c837dfeea8a450700f196e2 URL:https://git.kernel.org/stable/c/49178d4d61e78aed8c837dfeea8a450700f196e2 MISC:https://git.kernel.org/stable/c/5dbe1ebd56470d03b78fc31491a9e4d433106ef2 URL:https://git.kernel.org/stable/c/5dbe1ebd56470d03b78fc31491a9e4d433106ef2 MISC:https://git.kernel.org/stable/c/7717fc1a12f88701573f9ed897cc4f6699c661e3 URL:https://git.kernel.org/stable/c/7717fc1a12f88701573f9ed897cc4f6699c661e3 MISC:https://git.kernel.org/stable/c/d49c85a1913385eed46dd16a25ad0928253767f0 URL:https://git.kernel.org/stable/c/d49c85a1913385eed46dd16a25ad0928253767f0
Assigning CNA
kernel.org
Date Record Created
20240821	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240821)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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