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CVE-2025-71225: md: suspend array while updating raid_disks via sysfs

highCVSS 8.4CVE-2025-71225

CSIRTS triage

vendor: Linuxproduct: Linux kernelDenial of service
What
A race condition in RAID array management allows denial of service when updating raid_disks via sysfs.
Who is affected
Linux systems with active RAID arrays that are modified via sysfs.
Urgency
High priority; CVSS 8.4 indicates significant impact and systems with RAID may be disrupted.
Action
Apply kernel patches that properly suspend array updates during raid_disks configuration changes.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 8.4
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-71225

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-2025-71225coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for md

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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