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CVE-2025-38234: sched/rt: Fix race in push_rt_task

mediumCVSS 5.5CVE-2025-38234

CSIRTS triage

What
A race condition exists in the real-time task scheduler's push_rt_task function.
Who is affected
Systems running affected Linux kernel versions with real-time scheduling enabled.
Urgency
Medium severity; not currently exploited but race conditions can cause system instability.
Action
Apply Linux kernel security patch addressing CVE-2025-38234.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 5.5
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-38234

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2025-38234coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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