PT-2024-14768 · Linux+5 · Linux Kernel+5
Ran Xiaokai
+1
·
Published
2024-05-21
·
Updated
2026-05-26
·
CVE-2023-52831
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 (affected versions not specified)
Description
The issue occurs when a system has isolated CPUs via the "isolcpus=" command line parameter, and an attempt is made to offline the last housekeeping CPU. This results in a WARN ON() when rebuilding the scheduler domains and a subsequent panic due to an unhandled empty CPU mask in partition sched domains locked(). The functions
cpuset hotplug workfn() and rebuild sched domains locked() are involved in this process. The cpumask and() function is used with doms[0], top cpuset.effective cpus, and housekeeping cpumask(HK FLAG DOMAIN).Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Assertion Failure
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Related Identifiers
Affected Products
Astra Linux
Debian
Linux Kernel
Red Hat
Red Os
Suse