PT-2025-37896 · Linux+2 · Linux Kernel+2
Published
2023-05-11
·
Updated
2025-11-19
·
CVE-2023-53291
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.3.0-rc1-rcu+
Description
A flaw exists in the Linux kernel related to the rcu/rcuscale functionality. Specifically, the
kfree scale thread threads continue to run after the rcuscale module is unloaded, leading to a potential system crash. This issue is triggered when running the 'kfree rcu test' test case. The root cause is the failure to properly clean up these threads during module removal, resulting in a page fault when attempting to access memory.Recommendations
Update to a version of the Linux kernel later than 6.3.0-rc1-rcu+.
Exploit
Fix
Buffer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Suse