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CVE-2024-26962: dm-raid456, md/raid456: fix a deadlock for dm-raid456 while io concurrent with reshape

mediumCVSS 5.5CVE-2024-26962

CSIRTS triage

What
Deadlock occurs in dm-raid456/md-raid456 when I/O operations run concurrently with reshape operations.
Who is affected
Systems using dm-raid456 or md-raid456 with concurrent I/O and reshape workloads.
Urgency
Medium priority; causes denial of service through deadlock but not currently exploited.
Action
Update Linux kernel to a version with the dm-raid456 deadlock fix.

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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-2024-26962

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-2024-26962coverage & exploitation statusNVD · CVE.org

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