CVE-2024-41932 (GCVE-0-2024-41932)
Vulnerability from cvelistv5
Published
2025-01-11 12:25
Modified
2025-05-04 09:22
Severity ?
Summary
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
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5c3fb75f538cfcb886f6dfeb497d99fc2f263ee6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/70ee7947a29029736a1a06c73a48ff37674a851b
Impacted products
Vendor Product Version
Linux Linux Version: 8f9ea86fdf99b81458cc21fc1c591fcd4a0fa1f4
Version: 8f9ea86fdf99b81458cc21fc1c591fcd4a0fa1f4
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   Linux Linux Version: 6.2
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          "programFiles": [
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    "datePublished": "2025-01-11T12:25:08.892Z",
    "dateReserved": "2025-01-09T09:51:32.405Z",
    "dateUpdated": "2025-05-04T09:22:06.898Z",
    "state": "PUBLISHED"
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  }
}


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