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CVE-2026-43153: xfs: remove xfs_attr_leaf_hasname

highCVSS 7.1CVE-2026-43153

CSIRTS triage

product: Linux kernel XFSDenial of service
What
Removal of xfs_attr_leaf_hasname function introduces a vulnerability in XFS attribute handling.
Who is affected
Systems using XFS filesystems with extended attribute operations are affected.
Urgency
High severity (CVSS 7.1); impacts filesystem stability and requires immediate patching.
Action
Update the kernel to a version with proper XFS attribute leaf handling.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 7.1
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-43153

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-2026-43153coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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