CVE record · CVE-2026-89833

f2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()

No CVSS scoreEPSS 0.0023 · 13th percentile

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Linux	Linux	affected 608514deba38c8611ad330d6a3c8e2b9a1f68e4b to before 64a47dc8286ff98d8c231ae035bdfe16be1b93bf git affected 608514deba38c8611ad330d6a3c8e2b9a1f68e4b to before 58ca9f06480457eb9c9513e1ae2b75316d4ed1e5 git affected 608514deba38c8611ad330d6a3c8e2b9a1f68e4b to before bdc06381d590ad5833ee7a2c56b8b685d80ee9b5 git affected 608514deba38c8611ad330d6a3c8e2b9a1f68e4b to before 161513f53e4ac90fd356433bdf8e31e6adeb92af git affected 608514deba38c8611ad330d6a3c8e2b9a1f68e4b to before 905411f6504876d268ba8dafc8e75367782da4b7 git affected 608514deba38c8611ad330d6a3c8e2b9a1f68e4b to before ce366bfa821ec81dd45bde547ee31e659306cc61 git Other versions: unaffected
Linux	Linux	affected 4.7 unaffected before 4.7 semver unaffected 6.1.191 to 6.1., inclusive semver unaffected 6.6.160 to 6.6., inclusive semver unaffected 6.12.114 to 6.12., inclusive semver unaffected 6.18.51 to 6.18., inclusive semver unaffected 7.2.5 to 7.2., inclusive semver unaffected 7.3 to , inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-89833
CNA: Linux
Tags: Linux kernel
Published: 16 Sept 2026
Updated: 30 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The Linux kernel f2fs filesystem from 4.7 before the fixes can hang in an endless loop during fsync when a truncate runs at the same time. The source gives few details on who can trigger it. Upgrade to 6.1.191, 6.6.160, 6.12.114, 6.18.51, or a later release in those series.

Written 12 Nov 2026.

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

No source has published a CVSS score for this record yet.

CISA KEV Not listed.
EPSS 0.0023, the 13th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 16 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.