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CVE-2026-46175: f2fs: fix fsck inconsistency caused by FGGC of node block

mediumCVSS 5.5CVE-2026-46175

CSIRTS triage

vendor: Linuxproduct: LinuxOther
What
The F2FS filesystem's garbage collection of node blocks causes fsck inconsistency.
Who is affected
Systems using F2FS filesystem with garbage collection enabled are affected.
Urgency
Medium priority; filesystem inconsistency risk but no active exploitation reported.
Action
Update to a patched Linux kernel version addressing F2FS garbage collection once available.

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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-2026-46175

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-2026-46175coverage & exploitation statusNVD · CVE.org

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