- Vulnerability/
- CVE-2024-41932
CVE-2024-41932: sched: fix warning in sched_setaffinity
First published: Sat Jan 11 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: sched: fix warning in sched_setaffinity Commit 8f9ea86fdf99b added some logic to sched_setaffinity that included a WARN when a per-task affinity assignment races with a cpuset update. Specifically, we can have a race where a cpuset update results in the task affinity no longer being a subset of the cpuset. That's fine; we have a fallback to instead use the cpuset mask. However, we have a WARN set up that will trigger if the cpuset mask has no overlap at all with the requested task affinity. This shouldn't be a warning condition; its trivial to create this condition. Reproduced the warning by the following setup: - $PID inside a cpuset cgroup - another thread repeatedly switching the cpuset cpus from 1-2 to just 1 - another thread repeatedly setting the $PID affinity (via taskset) to 2
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 |
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Reference Links
- https://git.kernel.org/stable/c/5c3fb75f538cfcb886f6dfeb497d99fc2f263ee6
- https://git.kernel.org/stable/c/70ee7947a29029736a1a06c73a48ff37674a851b
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-41932
- https://nvd.nist.gov/vuln/detail/CVE-2024-41932
- https://launchpad.net/bugs/cve/CVE-2024-41932
- https://security-tracker.debian.org/tracker/CVE-2024-41932
- https://ubuntu.com/security/CVE-2024-41932
- https://git.kernel.org/linus/70ee7947a29029736a1a06c73a48ff37674a851b
Frequently Asked Questions
What is the severity of CVE-2024-41932?
CVE-2024-41932 has been classified as a low-severity issue.
How do I fix CVE-2024-41932?
To fix CVE-2024-41932, update the Linux kernel to the latest stable version that includes the vulnerability resolution.
What does CVE-2024-41932 affect?
CVE-2024-41932 affects the Linux kernel, specifically the sched_setaffinity function.
Is CVE-2024-41932 remotely exploitable?
CVE-2024-41932 is not considered to be remotely exploitable as it pertains to local task management.
What is the impact of CVE-2024-41932?
The impact of CVE-2024-41932 could lead to warning messages when tasks compete for CPU affinity during cpuset updates.
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