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CVE-2026-45943: erofs: fix inline data read failure for ztailpacking pclusters

mediumCVSS 5.5CVE-2026-45943

CSIRTS triage

vendor: Linuxproduct: Linux KernelOther
What
Inline data read failure in erofs (Enhanced Read-Only File System) for ztailpacking pclusters causes read errors.
Who is affected
Systems using erofs with compressed ztailpacking are affected.
Urgency
Medium priority; causes file read failures for affected erofs users but does not directly enable compromise.
Action
Apply kernel updates addressing CVE-2026-45943 to fix inline data reads.

AI-assisted analysis generated from the source advisory — verify against the original.

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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-2026-45943

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-2026-45943coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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