DEBIAN-CVE-2023-52942
- Source
- https://security-tracker.debian.org/tracker/CVE-2023-52942
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52942.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2023-52942
- Upstream
- Published
- 2025-03-27T17:15:44Z
- Modified
- 2025-10-29T09:01:26Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved: cgroup/cpuset: Fix wrong check in updateparentsubpartscpumask() It was found that the check to see if a partition could use up all the cpus from the parent cpuset in updateparentsubpartscpumask() was incorrect. As a result, it is possible to leave parent with no effective cpu left even if there are tasks in the parent cpuset. This can lead to system panic as reported in [1]. Fix this probem by updating the check to fail the enabling the partition if parent's effectivecpus is a subset of the child's cpusallowed. Also record the error code when an error happens in update_prstate() and add a test case where parent partition and child have the same cpu list and parent has task. Enabling partition in the child will fail in this case. [1] https://www.spinics.net/lists/cgroups/msg36254.html
- References
Affected packages
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:14 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source